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                                            10.11609/jott.2022.14.1.20311-20538
                                                           www.threatenedtaxa.org

                                               26 January 2022 (Online & Print)
                                                           14(1): 20311–20538
                                                     ISSN 0974-7907 (Online)
                                                       ISSN 0974-7893 (Print)
Taxa Journal of conservation globally - for
ISSN 0974-7907 (Online); ISSN 0974-7893 (Print)

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    Caption: Cyrtodactylus myintkyawthurai, endemic to Myanmar. Medium: Water colours on watercolor sheet. © Aakanksha Komanduri
Taxa Journal of conservation globally - for
Journal of Threatened Taxa | www.threatenedtaxa.org | 26 January 2022 | 14(1): 20461–20468
ISSN 0974-7907 (Online) | ISSN 0974-7893 (Print)                                                                              OPEN
                                                                                                                             ACCESS
https://doi.org/10.11609/jott.6762.14.1.20461-20468

#6762 | Received 02 October 2020 | Final received 29 September 2021 | Finally accepted 04 January 2022
                                                                                                                                                  COMMUNICATION

       Nesting success of Sharpe’s Longclaw (Macronyx sharpei Jackson, 1904)
            around the grasslands of lake Ol’bolossat Nyandarua, Kenya
                                     Hamisi Ann Risper 1 , Charles M. Warui 2                          & Peter Njoroge 3
                               1
                                 Department of Biological Science, Mount Kenya University, PO BOX 342-01000, Thika, Kenya.
                  2
                      School of Pure and Applied Sciences, Murang’a University of Technology, PO BOX 75-10200, Murang’a, Kenya.
                             3
                               Department of Ornithology, National Museums of Kenya, PO BOX 40658- 00100 Nairobi, Kenya.
                        1
                          risperhamisi@gmail.com (corresponding author), 2 cmwarui@yahoo.com, 3 pnjoroge@museums.or.ke

   Abstract: Sharpe’s Longclaw Macronyx sharpei is an endangered Kenyan endemic bird restricted to high-altitude grasslands with long
   tussocks. The species occurs on the grasslands surrounding Lake Ol’Bolossat in Nyandarua, Kenya, an area that is globally recognized
   as an Important Bird and Biodiversity Area. The grasslands receive little conservation measures, which have led to the decline in the
   population density of Sharpe’s Longclaw. Nesting success in birds is crucial for their population growth. The daily survival rate for natural
   nests of Sharpe’s Longclaw in the grasslands of Lake Ol’Bolossat had not been systematically assessed prior to this study. Natural nests
   were actively searched during the breeding seasons of March–May 2016, while artificial nests were constructed using dry grass containing
   artificial eggs made of cream modeling clay. Natural nests had a higher daily nest survival percentage than artificial nests. The highest
   daily nest survival rate was 40% and the lowest 0.01%. Predators, livestock grazing and fires greatly reduced the survival of nestlings. We
   recommend intensive ecological management of the high-altitude grasslands of Lake Ol’Bolossat.

   Keywords: Daily survival rate, Endangered, endemic, Lake Ol’Bolossat, nest, nestling, Sharpe’s Longclaw.

 Editor: Hem Sagar Baral, Charles Sturt University, Albury, Australia.                                         Date of publication: 26 January 2022 (online & print)

 Citation: Risper, H.A., C.M. Warui & P. Njoroge (2022). Nesting success of Sharpe’s Longclaw (Macronyx sharpei Jackson, 1904) around the grasslands of lake
 Ol’bolossat Nyandarua, Kenya. Journal of Threatened Taxa 14(1): 20461–20468. https://doi.org/10.11609/jott.6762.14.1.20461-20468

 Copyright: © Risper et al. 2022. Creative Commons Attribution 4.0 International License. JoTT allows unrestricted use, reproduction, and distribution of this article
 in any medium by providing adequate credit to the author(s) and the source of publication.

 Funding: No funding was received for this research study.

 Competing interests: The authors declare no competing interests.

 Author details: Hamisi Ann Risper—she is a biology teacher working for Teachers Service Commission in Kenya. She has been carrying out some ornithological
 research around grasslands of Lake Ol’bollosat where she has great passion in conservation of birds. She is a member of Nyahururu Bird Club which is committed
 to environmental conservation. Charles M. Warui—he is a conservation biologist/entomologist and a senior lecturer at Murang’a University of Technology,
 Department of Physical & Biological Sciences in the School of Pure and Applied Sciences where teaches Ecology & Evolutionary Biology, Entomology and
 Conservation Biology. He has interests in Conservation of Biodiversity and Biology and Environmental Modeling. Peter Njoroge—he is a Senior Research Scientist
 and Head of Ornithology Section of the National Museums of Kenya. He has actively engaged in biodiversity research for the last 24 years, especially research on
 avian species. He has published many articles on conservation, avian ecology and environmental-related issues.

 Author contributions: HAR—conceived and designed experiment of the study, collected field data, analyzed data, interpreted data, discussed data, wrote the
 manuscript. CMW—designed study, analyzed, interpreted and discussed data, wrote the manuscript. PN—designed study, analyzed and interpreted data, wrote
 the manuscript.

 Acknowledgements: I would like to acknowledge George Mungai for his fieldwork assistance and guidance.

                                                                                                                                                               20461
Taxa Journal of conservation globally - for
J   TT   Nesting success of Sharpe’s Longclaw of lake Ol’bolossat Nyandarua                                                      Risper et al.

         INTRODUCTION                                                         changes reduce nesting substrates which hide the nest
                                                                              from their predators (Ammon & Stacey 1997). Nesting
             Approximately, 350 bird species are grassland                    success is also related to the structure of the habitat
         dwellers in Kenya (Morris et al. 2009). Sharpe’s Longclaw            (Bowman & Harris 1980), nest site features (Norment
         Macronyx sharpei (Jackson 1904) is among these                       1993), nesting bird behavior (Cresswell 1997) and
         grassland birds. It is 16 to 17 cm long, with upper parts            parental activity (Martin et al. 2000). The nests located
         heavily marked with buff and rufous streaks, yellow                  in hidden places such as cavities, shrubs, and tussocks
         underparts, and white outer tail feathers in flight (BirdLife        have a higher probability of survival than nests located
         International 2016). Sharpe’s Longclaw is endemic                    in open spaces (Walk et al. 2010). Food availability is also
         to Kenya and it is listed as globally endangered in the              an important factor determining nestlings’ growth and
         International Union for Conservation of Nature (IUCN)                survival (Roff 1992).
         Red List of threatened species (BirdLife International                   Increased parental activity escalates the risk of
         2016). The preferred habitat for Sharpe’s Longclaw is the            nest predation (Martin et al. 2000). The birds with
         high-altitude grasslands of the central Kenyan highlands.            minimal parental activities, therefore, reduce nest
         The population of Sharpe’s Longclaw in the grasslands                predation. Habitats may indirectly influence predation
         of Ol’Bolossat has been on the decline due to the loss of            risks, food availability for nesting birds, and time and
         feeding and nesting habitats caused by the conversion                energy available for nest defense (Martin 1995). When
         of grasslands into crop fields, afforestation, uncontrolled          a predator visits a particular nest and takes some of
         bird shooting, mining activities and constant use of                 its contents but not all (i.e., partial depredation), the
         insecticides (Monadjem & Virani 2016).                               behavior may lead to selective pressure, which is not
             For birds that lay eggs in nests and incubate them               enforced by complete nest predation (Lariviere &
         until they hatch, many eggs are lost due to predation,               Messier 1997; Amundsen 2000).
         which varies with the quality and site of nests (Martin                  To properly manage the declining populations of
         & Clobert 1996). Nests located in hidden places (for                 grassland dwelling birds, habitat protection is important
         example, cavities) have a higher probability of survival             because it directly influences their nesting success
         than those located in open ground (Walk et al. 2010).                (Winter & Faaborg 1999). Determining the nesting
         During the breeding season, the selection of good nest               success of Sharpe’s Longclaw is therefore, important
         sites is important because it affects nesting success                when developing species-specific conservation
         and the survival of the nestlings (Lima 2009). Other                 measures. This study was designed to determine the
         factors that affect nesting success of grassland birds               nest success of Sharpe’s Longclaw in the grasslands
         include wind and sunlight direction, which influence the             around Lake Ol’Bolossat in Nyandarua , Kenya.
         microclimate of the nest (Wiebe et al. 2001; Tieleman
         et al. 2008).
             Sharpe’s Longclaw constructs its nest in long grass              STUDY AREA AND RESEARCH METHODS
         tussocks (Dominic et al. 2020), which provide both nest
         material (Collias & Collias 2014) and cover from predators           Study area
         (Muchai & Plessis 2005). However, tussocks can be                         Lake Ol’Bolossat is located in Kenya, Nyandarua
         destroyed by various human activities such as farming,               County, Ol-joro-orok Sub-County. It lies between
         fires and overgrazing (Wamiti et al. 2008) which alter the           latitudes 0.1640 90’ 00” South and longitudes 36.4450
         quality of bird nesting habitats and reduce nesting areas.           26’ 00” East (Figure 1). It is positioned in Ongata Pusi
         Nests in inferior quality habitats will expose eggs and              valley and is adjacent to the Rift valley with an elevation
         nestlings to predators such as snakes, predatory birds               of 2,340 m above sea level. It is a natural wetland
         and moles, leading to decreased nest success (Pace et                covering an area of approximately 43.3 km2 and its
         al. 1999; Polis et al. 2000). Adverse weather conditions             open waters cover 4 km2. It has a rich biodiversity zone
         have also contributed to the decline in nesting success of           with many species of water birds and other threatened
         Sharpe’s Longclaw (Stephenson et al. 2011; Shiao et al.              species. The riparian land around Lake Ol’Bolossat is
         2015). During heavy rains, runoff water destroys nests               covered by grasslands inhabited by birds (Wamiti et al.
         reducing nesting success and survival rates (Rodriguez               2008). It was internationally recognized as the sixty-
         & Barba 2016).                                                       first Important Bird and Biodiversity Area (IBA) in Kenya
             Nesting success is mainly influenced by changes in               in March 2008 by BirdLife International (Mwangi et
         habitat structures through management practices. These               al. 2010) and protected officially from February 2018

         20462                                   Journal of Threatened Taxa | www.threatenedtaxa.org | 26 January 2022 | 14(1): 20461–20468
Taxa Journal of conservation globally - for
Nesting success of Sharpe’s Longclaw of lake Ol’bolossat Nyandarua                                                                Risper et al.   J   TT

Figure 1. Lake Ol’Bolossat basin showing the main geographical features in the study area (Google 2018).

(Nature Kenya 2018).                                                    for future geo-location. They were checked after three
    The climate is sub-humid throughout the year and                    days to determine their status.
is mainly influenced by the surrounding highlands. Lake                     Care was taken during nest searches to avoid
Ol’Bolossat has a rainfall pattern between 700 and 1,000                disturbance to the nests and surrounding vegetation. A
ml with long rains from April to July, and short rains in               stick was used to hold the vegetation aside to prevent
November (Wamiti et al. 2008). Temperatures are cold                    contact with human clothing/skin that would leave
because of the wind blowing from the Aberdare ranges,                   behind scents that attract predators. Mayfield nesting
which can bring frost that can destroy grass, including                 success formula was used to estimate the probability of
the tussocks favored by Sharpe’s Longclaw (Wamiti et al.                successful nesting (Mayfield 1975).
2008).
                                                                                                           Exposure days - Failed nests
                                                                            Daily survival probability = ––––––––––––––––––––––––––
                                                                                                                Exposure days
Methods
Determination of natural nest success                                       Daily survival probability refers to the probability of
   Nests were searched during the breeding seasons                      the nestling to survive from one day to the next in the
of March to May (2016) by fortuitous encounters, or                     nest. In contrast, exposure days refer to the total number
by following adults carrying nesting material during                    of days a nest will be observed active and susceptible to
incubation and feeding of the young, or by dragging a                   failure.
50m rope between two people and flushing birds from                         Nest survival refers to the probability that a nest
nests (Bibby et al. 2000). Once the nests were located,                 fledges at least one chick using a nesting period of 26
global positioning system (GPS) coordinates were taken                  days (4 laying, 12 incubating, and 10 nestling).

Journal of Threatened Taxa | www.threatenedtaxa.org | 26 January 2022 | 14(1): 20461–20468                                            20463
Taxa Journal of conservation globally - for
J   TT   Nesting success of Sharpe’s Longclaw of lake Ol’bolossat Nyandarua                                                      Risper et al.

                  Nest survival= daily survival probability nesting period    natural and artificial nests. The null hypothesis was
                                                                              rejected when p ≤0.05.
         Predation rate for artificial nets
             Artificial nests were used to assess the effect
         of different variables on the rate and trend of nest                 RESULTS
         predation (Major & Kendall 1996). They allow
         researchers to manipulate the number of nests in the                 Sharpe’s Longclaw nesting success
         study area, and take less time to place and locate than                  A total of seven natural nests were identified in seven
         natural nests (Yahner & Delong 1992). However, the lack              locations between April and July 2016, and observed
         of an incubating adult may affect the ability of predators           during the nesting period. Nests were discovered on
         to locate them (Martin 1987).                                        12 May, 26 May, 10 June, 02 July, and 06 July around
             The artificial nest experiment in the grasslands of              the grasslands of Lake Ol’Bolossat. At the beginning of
         Lake Ol’Bolossat was conducted between March and                     the study, nests were in various stages of development:
         July 2016. Experimental nests were constructed 10 cm                 two nests had eggs, two nests had nestlings, and three
         wide and 5 cm deep using dry grass interwoven to mirror              nests were in the construction stage. One of the seven
         Sharpe’s Longclaw nests as much as possible. Cream                   natural nests located in Nduthi was abandoned during
         non-toxic modeling clay was used to make artificial                  the construction stage, possibly due to flooding caused
         eggs. The plasticine eggs were similar in size, shape and            by heavy rains. Three eggs were recorded in each nest,
         color to Sharpe’s Longclaw eggs. After shaping the egg,              although nests located in Rurii and Nduthi had none
         a marker was used to make irregular spots. Edge effects              (Table 1). All eggs hatched to chicks in Mukindu, Kirima,
         were considered near forests, roads, and hedgerows                   Munyeki, and Makereka nest locations, indicating a
         (Keyel et al. 2013) and extended between 50–100 m into               100% hatching rate. However, the eggs in Kanguo did not
         the nesting habitat (Bollinger & Gavin 2004).                        hatch (Table 1). Tussock height ranged between 25.0 m
             The grassland habitat was divided into several                   in Makindu to 21.5 m in Rurii (Table 1).
         portions measuring 1,000 x 850 m. Three line transects
         were laid in each habitat 200 m apart. Samples of 30                 Daily survival of natural and plasticine eggs
         nests were laid out. These included three nests in two                   The highest daily nesting survival among the natural
         transects and four in one transect, repeated two more                nests of 96% was recorded in Kirima, while the least daily
         times in habitats with tussocks. Each nest had three                 survival of 75% was recorded in Rurii, as shown in Table
         white plasticine eggs, which were left for a minimum of              2. The least daily survival rate of natural nests of 0.01%
         21 days, a duration that resembles Sharpe’s Longclaw                 was observed in Rurii, while the highest daily survival
         incubation period.                                                   rate of natural nests of 40% was reported in Kirima
             The average distance between nests was 250 m.                    (Table 2; Figure 2). The survival of chicks in some of the
         Artificial nests were randomly placed together with                  nests was greatly reduced. For example, one of the nests
         Sharpe’s Longclaw nests but at a specified distance of               was found with healthy chicks during the interval check,
         250 m away. GPS coordinates were taken for the future                but a chunk of round feaces was found in the nest on
         location. The eggs were examined for bites or teeth                  the next checking date. This was an indication that the
         impressions and the appropriate records made, ensuring               chicks had been predated by an unknown animal (Image
         a proper differentiation between avian and rodent                    1).
         predators (Dion et al. 2000). Nests were considered                      The artificial nests recorded the highest nest daily
         depredated when the plasticine eggs were destroyed or                survival of 90% in Rurii, Nduthi and Kanguo, while the
         showed bite marks.                                                   least daily survival of 67% was recorded in Munyeki
                                                                              and Makereka (Table 2). The least daily survival rate
         Data analysis                                                        for plasticine egg of 0.003% was recorded in Munyeki
             Raw data were recorded and then tabulated in                     and Makereka, while the highest daily survival rate
         Microsoft Excel for cleaning and storage. Quantitative               of 6.0% was reported in Rurii, Nduthi, and Kanguo
         data was exported to SPSS (Statistical Package for Social            (Table 2; Figure 2). A large portion of the tussocks that
         Sciences) software version 25.0 (IBM corporation,                    contained a total of 10 artificial nests was consumed
         Armonk, New York, United States of America) for analysis.            by fire. Of the remaining ten nests, two experimental
         An unpaired t-test was used to test for the statistical              nests were attacked by unknown predators, leaving bite
         difference between the daily survival percentage of                  marks on the eggs (Image 2). Other factors that strongly

         20464                                   Journal of Threatened Taxa | www.threatenedtaxa.org | 26 January 2022 | 14(1): 20461–20468
Taxa Journal of conservation globally - for
Nesting success of Sharpe’s Longclaw of lake Ol’bolossat Nyandarua                                                                                 Risper et al.   J   TT
Table 1. Sharpe’s Longclaw nesting success.
 No. of                                                                                                No. of
          Nest Location        Status at Discovery   Tussock size    No. of nest       No. of eggs                  Status
  nest                                                                                                 chicks
   1      Makindu              Construction             25.0             1                   3           3          Chick fledged

   2      Rurii                Laying                   21.5             1                   0           0          Faeces found

   3      Nduthi               Construction              24              1                   0           0          Nest abandoned

   4      Kirima               Fledging                  23              1                   3           3

   5      Kanguo               Laying                    27              1                   3           0

   6      Munyeki              Laying                    25              1                   3           3

   7      Makereka             Fledging                  24              1                   3           3

                                                                              Table 2. Daily nest survival for natural and artificial nests.

                                                                                   Study site         DSPA           DSPP           DSRa 95%      DSRp 95%

                                                                                   Mukindu           94.12           80.00           20.67           3.00

                                                                                   Rurii             75.00           90.47            0.01            6.0

                                                                                   Nduthi            84.61           90.47            1.30            6.0

                                                                                   Kirima            96.50           84.61           40.14           1.30

                                                                                   Kanguo            92.86           90.47           14.56            6.0

                                                                                   Munyeki           92.86           66.70           26.35          0.003

                                                                                   Makereka          95.00           66.70           26.35          0.003

                                                                              Key: DSPA—Daily survival percentage for natural nest | DSPp—Daily survival
                                                                              percentage for artificial nest | DSRa—Daily survival rate for natural nest | DSRp—
                                                                              Daily survival rate for artificial nest.
Image 1. Picture showing fresh faeces from unknown predictor
(sourced from this study).

                                                                              1.29; p= 0.11).

                                                                              DISCUSSION

                                                                                  Sharpe’s Longclaw is a threatened bird due to the
                                                                              rapid encroachment of its habitat. This endemic and
                                                                              endangered species is restricted to highland grasslands
                                                                              in Kenya (Dominic et al. 2020). This study has revealed
                                                                              a higher hatching success of Sharpe’s Longclaw in some
                                                                              areas around the grasslands of Lake Ol’Bolossat, such as
                                                                              Makindu, Kirima, Munyeki, and Makereka. The higher
Figure 2. Daily survival percentage and daily survival rate for both          nesting hatching success could be attributed to dense,
natural and artificial nests. DSPA—Daily survival percentage for
natural nest | DSPP—Daily survival percentage for artificial nest |           long tussocks, which helped conceal the nests from
DSRa—Daily survival rate for natural nest | DSRp—Daily survival rate          predation. However, in some nests, the hatching success
for artificial nest.
                                                                              of chicks was greatly reduced due to predation. This was
                                                                              revealed by the presence of a chunk of round faeces
                                                                              in the nest. Predation is the main cause of nest failure
contributed to the low survival of plasticine eggs were                       in grassland nesting birds and many populations living
human disturbance, livestock grazing, and trampling on                        in fragmented habitats experience low reproductive
the eggs.                                                                     success worldwide (Chalfoun et al. 2002; Klug & Jackrel
    In comparison, there was no significant difference                        2010). Human disturbance, fires, and livestock grazing
between daily survival of natural (90.14±2.19) and                            leading to trampling on the eggs are other factors that
artificial (81.35±4.06) nests (unpaired t-test; df= 12; t=                    strongly contributed to reduced hatching success.

Journal of Threatened Taxa | www.threatenedtaxa.org | 26 January 2022 | 14(1): 20461–20468                                                             20465
Taxa Journal of conservation globally - for
J   TT   Nesting success of Sharpe’s Longclaw of lake Ol’bolossat Nyandarua                                                      Risper et al.

         Image 2. Photos of some damaged experimental eggs (sourced from this study).

             The study has also found that daily natural nest                 them (Estrada et al. 2002).
         survival of Sharpe’s Longclaw is higher in grasslands
         around Lake Ol’Bolossat, especially in areas such as                 Approaches to conserve threatened birds
         Kirima, Makereka, Mukindu, Munyekia, and Kanguo.                         Increased agricultural activities diminish and
         The higher daily survival can be attributed to dense,                fragment suitable breeding habitats for Sharpe`s
         tussocks, which help protect the nests from predators.               Longclaw (Wamiti et al. 2008). This reduces the habitat
         The nests located in dense long tussocks have a higher               for breeding birds leading to the formation of patches.
         probability of survival than those located in open fields            Therefore, the predators may specialize on the patches in
         (Walk et al. 2010). Also, the lowest and highest daily               search of rewarding prey, decreasing Sharpe`s Longclaw
         survival rate of the natural nests were observed in Rurii            population. Increased vegetation heterogeneity would
         and Kirima, respectively. It was noted that the survival             significantly reduce the risk of nest predation (Davis
         of the chicks was greatly reduced in some of the nests               2015). This is because shrubs would grow together with
         due to predation. This is consistent with a study carried            grassland, reducing the nest’s visibility to their potential
         out by (Leonard et al. 2017), which has reported that                predators.
         the predators significantly reduce the nest survival rate.               Mowing of the vegetation should not occur
         Besides, flooding also destroyed the nests resulting in              frequently, and if it does it should only happen after
         reduced nest success and survival rates. This finding                nestlings have left their nests around mid-July. When
         is also reported by Rodriguez & Barba (2016) on the                  delayed nesting occurs, mowing should be delayed to
         growth and survival of Great Tit Parus major nestlings.              guard the nests together with their fledglings (Gruebler
             Parental activity and nest-site characteristics strongly         et al. 2012). In addition, dry vegetation should be left
         impact the predation of eggs and nestlings (Martin et al.            on the habitat because it will provide cover and offer
         2000). Parental activity such as loud calls and beggings             the birds with nest construction materials in the next
         can act as a signal for the nestlings and attract predators          breeding season (Shaffer et al. 2019).
         (Martin et al. 2000; Muchai & Plessis 2005), hence                       Overgrazing should be discouraged, but instead,
         increasing the probability of predation. This is because             moderate grazing should be enhanced because it is
         parents always visit nests more frequently to feed the               beneficial. This is because moderate grazing prevents
         young. Birds with low predation rates have developed                 the growth of foreign grass and improves the nesting
         short to long on and off bouts to reduce activities that             habitat for Sharpe`s Longclaw (Bock et al. 1993; Sutter
         would attract predators (Conway & Martin 2000). Nests                2006; Wersher et al. 2011). Large grassland fields should
         likely to be attacked by predators are always located                be identified, preserved and protected as they reduce
         early in their nestling cycle (Skutch 1985). Nests that              the rate of nest destruction and brood parasitism (Davis
         are not well concealed have a high predation rate in the             & Sealy 2000). Burning of the grasslands should also
         incubation stage than during the nestling stage (Liebezeit           be discouraged since it destroys the eggs leading to
         & George 2002).                                                      reduced population growth of Sharpe’s Longclaw during
             It is also observed that the daily survival of natural           its breeding time.
         and artificial nests is not significantly different in the               The recovery of grassland can be achieved through
         grasslands of Lake Ol’Bolossat. This can be attributed               the seeding of native grasses in both private and public
         to the fact that the plasticine eggs resembled almost                lands through Conservation Reserve Program (CRP);
         natural eggs and the predators could not differentiate               (Best et al. 1998; Riffell et al. 2008); and the formation

         20466                                   Journal of Threatened Taxa | www.threatenedtaxa.org | 26 January 2022 | 14(1): 20461–20468
Nesting success of Sharpe’s Longclaw of lake Ol’bolossat Nyandarua                                                                          Risper et al.   J   TT
of buffers around agricultural fields (Adams et al. 2013).                     53: 93–103. https://doi.org/10.1006/anbe.1996.0281
                                                                            Davis, S.K., & S.C.G. Sealy (2000). Cowbird Parasitism and Nest
This aids in designing a suitable habitat for the birds                        Predation in Fragmented Grasslands. Ecology and management
during nesting.                                                                of cowbirds and their hosts: studies in the conservation of North
    In conclusion, some areas of Lake Ol’Bolossat                              American passerine birds, 220–237.
                                                                            Davis, S.K. (2005). Nest–site selection patterns and the influence of
had higher survival rates of the eggs and nestling. In                         vegetation on nest survival of mixed–grass prairie passerines. The
contrast, others had low survival rates due to predators,                      Condor 107(3): 605–616. https://doi.org/10.1093/condor/107.3.605
human activities, livestock grazing and fire. This is due                   Dion, N., K.A. Hobson & S. Larivière (2000). Interactive effects of
                                                                               vegetation and predators on the success of natural and simulated
to the low survival rate caused by increased habitat loss                      nests of grassland songbirds. The Condor 102: 629–634. https://doi.
through human activities, thereby exposing eggs and                            org/10.1093/condor/102.3.629
nestlings to predictors. Therefore, measures to protect                     Dominic, K., M. Muchai, J. Kimanzi, J. Mwangi, W. Wamiti, S. Bakari,
                                                                               B. Walter & P. Njoroge (2020). Habitat structure determines the
and conserve grasslands inhabited by Sharpe’s Longclaw                         abundance of the Endangered Sharpe’s Longclaw Macronyx sharpei
around Lake Ol’Bolossat should be enforced to prevent                          (Aves: Passeriformes: Motacillidae) at Timau montane grasslands
their extinction in the near future.                                           in central Kenya. Journal of Threatened Taxa 12(5): 15565–15571.
                                                                               https://doi.org/10.11609/jott.5366.12.5.15565-15571
                                                                            Estrada, A., A. Rivera & R. Coates-Estrada (2002). Predation of artificial
                                                                               nests in fragmented Landscape in the tropical region of Los Tuxtlas,
                                                                               Mexico, Biological Conservation Journal 106: 199–209. https://doi.
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Journal of Threatened Taxa | www.threatenedtaxa.org | 26 January 2022 | 14(1): 20461–20468                                                     20467
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                                                                                                                                                    Threatened Taxa

         20468                                   Journal of Threatened Taxa | www.threatenedtaxa.org | 26 January 2022 | 14(1): 20461–20468
Dr. John Noyes, Natural History Museum, London, UK                                            Birds
Dr. Albert G. Orr, Griffith University, Nathan, Australia
Dr. Sameer Padhye, Katholieke Universiteit Leuven, Belgium                                    Dr. Hem Sagar Baral, Charles Sturt University, NSW Australia
Dr. Nancy van der Poorten, Toronto, Canada                                                    Dr. Chris Bowden, Royal Society for the Protection of Birds, Sandy, UK
Dr. Kareen Schnabel, NIWA, Wellington, New Zealand                                            Dr. Priya Davidar, Pondicherry University, Kalapet, Puducherry, India
Dr. R.M. Sharma, (Retd.) Scientist, Zoological Survey of India, Pune, India                   Dr. J.W. Duckworth, IUCN SSC, Bath, UK
Dr. Manju Siliwal, WILD, Coimbatore, Tamil Nadu, India                                        Dr. Rajah Jayapal, SACON, Coimbatore, Tamil Nadu, India
Dr. G.P. Sinha, Botanical Survey of India, Allahabad, India                                   Dr. Rajiv S. Kalsi, M.L.N. College, Yamuna Nagar, Haryana, India
Dr. K.A. Subramanian, Zoological Survey of India, New Alipore, Kolkata, India                 Dr. V. Santharam, Rishi Valley Education Centre, Chittoor Dt., Andhra Pradesh, India
Dr. P.M. Sureshan, Zoological Survey of India, Kozhikode, Kerala, India                       Dr. S. Balachandran, Bombay Natural History Society, Mumbai, India
Dr. R. Varatharajan, Manipur University, Imphal, Manipur, India                               Mr. J. Praveen, Bengaluru, India
Dr. Eduard Vives, Museu de Ciències Naturals de Barcelona, Terrassa, Spain                    Dr. C. Srinivasulu, Osmania University, Hyderabad, India
Dr. James Young, Hong Kong Lepidopterists’ Society, Hong Kong                                 Dr. K.S. Gopi Sundar, International Crane Foundation, Baraboo, USA
Dr. R. Sundararaj, Institute of Wood Science & Technology, Bengaluru, India                   Dr. Gombobaatar Sundev, Professor of Ornithology, Ulaanbaatar, Mongolia
Dr. M. Nithyanandan, Environmental Department, La Ala Al Kuwait Real Estate. Co. K.S.C.,      Prof. Reuven Yosef, International Birding & Research Centre, Eilat, Israel
Kuwait                                                                                        Dr. Taej Mundkur, Wetlands International, Wageningen, The Netherlands
Dr. Himender Bharti, Punjabi University, Punjab, India                                        Dr. Carol Inskipp, Bishop Auckland Co., Durham, UK
Mr. Purnendu Roy, London, UK                                                                  Dr. Tim Inskipp, Bishop Auckland Co., Durham, UK
Dr. Saito Motoki, The Butterfly Society of Japan, Tokyo, Japan                                Dr. V. Gokula, National College, Tiruchirappalli, Tamil Nadu, India
Dr. Sanjay Sondhi, TITLI TRUST, Kalpavriksh, Dehradun, India                                  Dr. Arkady Lelej, Russian Academy of Sciences, Vladivostok, Russia
Dr. Nguyen Thi Phuong Lien, Vietnam Academy of Science and Technology, Hanoi, Vietnam         Dr. Simon Dowell, Science Director, Chester Zoo, UK
Dr. Nitin Kulkarni, Tropical Research Institute, Jabalpur, India                              Dr. Mário Gabriel Santiago dos Santos, Universidade de Trás-os-Montes e Alto Douro,
Dr. Robin Wen Jiang Ngiam, National Parks Board, Singapore                                    Quinta de Prados, Vila Real, Portugal
Dr. Lional Monod, Natural History Museum of Geneva, Genève, Switzerland.                      Dr. Grant Connette, Smithsonian Institution, Royal, VA, USA
Dr. Asheesh Shivam, Nehru Gram Bharti University, Allahabad, India                            Dr. M. Zafar-ul Islam, Prince Saud Al Faisal Wildlife Research Center, Taif, Saudi Arabia
Dr. Rosana Moreira da Rocha, Universidade Federal do Paraná, Curitiba, Brasil
Dr. Kurt R. Arnold, North Dakota State University, Saxony, Germany                            Mammals
Dr. James M. Carpenter, American Museum of Natural History, New York, USA
Dr. David M. Claborn, Missouri State University, Springfield, USA                             Dr. Giovanni Amori, CNR - Institute of Ecosystem Studies, Rome, Italy
Dr. Kareen Schnabel, Marine Biologist, Wellington, New Zealand                                Dr. Anwaruddin Chowdhury, Guwahati, India
Dr. Amazonas Chagas Júnior, Universidade Federal de Mato Grosso, Cuiabá, Brasil               Dr. David Mallon, Zoological Society of London, UK
Mr. Monsoon Jyoti Gogoi, Assam University, Silchar, Assam, India                              Dr. Shomita Mukherjee, SACON, Coimbatore, Tamil Nadu, India
Dr. Heo Chong Chin, Universiti Teknologi MARA (UiTM), Selangor, Malaysia                      Dr. Angie Appel, Wild Cat Network, Germany
Dr. R.J. Shiel, University of Adelaide, SA 5005, Australia                                    Dr. P.O. Nameer, Kerala Agricultural University, Thrissur, Kerala, India
Dr. Siddharth Kulkarni, The George Washington University, Washington, USA                     Dr. Ian Redmond, UNEP Convention on Migratory Species, Lansdown, UK
Dr. Priyadarsanan Dharma Rajan, ATREE, Bengaluru, India                                       Dr. Heidi S. Riddle, Riddle’s Elephant and Wildlife Sanctuary, Arkansas, USA
Dr. Phil Alderslade, CSIRO Marine And Atmospheric Research, Hobart, Australia                 Dr. Karin Schwartz, George Mason University, Fairfax, Virginia.
Dr. John E.N. Veron, Coral Reef Research, Townsville, Australia                               Dr. Lala A.K. Singh, Bhubaneswar, Orissa, India
Dr. Daniel Whitmore, State Museum of Natural History Stuttgart, Rosenstein, Germany.          Dr. Mewa Singh, Mysore University, Mysore, India
Dr. Yu-Feng Hsu, National Taiwan Normal University, Taipei City, Taiwan                       Dr. Paul Racey, University of Exeter, Devon, UK
Dr. Keith V. Wolfe, Antioch, California, USA                                                  Dr. Honnavalli N. Kumara, SACON, Anaikatty P.O., Coimbatore, Tamil Nadu, India
Dr. Siddharth Kulkarni, The Hormiga Lab, The George Washington University, Washington,        Dr. Nishith Dharaiya, HNG University, Patan, Gujarat, India
D.C., USA                                                                                     Dr. Spartaco Gippoliti, Socio Onorario Società Italiana per la Storia della Fauna “Giuseppe
Dr. Tomas Ditrich, Faculty of Education, University of South Bohemia in Ceske                 Altobello”, Rome, Italy
Budejovice, Czech Republic                                                                    Dr. Justus Joshua, Green Future Foundation, Tiruchirapalli, Tamil Nadu, India
Dr. Mihaly Foldvari, Natural History Museum, University of Oslo, Norway                       Dr. H. Raghuram, The American College, Madurai, Tamil Nadu, India
Dr. V.P. Uniyal, Wildlife Institute of India, Dehradun, Uttarakhand 248001, India             Dr. Paul Bates, Harison Institute, Kent, UK
Dr. John T.D. Caleb, Zoological Survey of India, Kolkata, West Bengal, India                  Dr. Jim Sanderson, Small Wild Cat Conservation Foundation, Hartford, USA
Dr. Priyadarsanan Dharma Rajan, Ashoka Trust for Research in Ecology and the Environment      Dr. Dan Challender, University of Kent, Canterbury, UK
(ATREE), Royal Enclave, Bangalore, Karnataka, India                                           Dr. David Mallon, Manchester Metropolitan University, Derbyshire, UK
                                                                                              Dr. Brian L. Cypher, California State University-Stanislaus, Bakersfield, CA
Fishes                                                                                        Dr. S.S. Talmale, Zoological Survey of India, Pune, Maharashtra, India
                                                                                              Prof. Karan Bahadur Shah, Budhanilakantha Municipality, Kathmandu, Nepal
Dr. Neelesh Dahanukar, IISER, Pune, Maharashtra, India                                        Dr. Susan Cheyne, Borneo Nature Foundation International, Palangkaraja, Indonesia
Dr. Topiltzin Contreras MacBeath, Universidad Autónoma del estado de Morelos, México          Dr. Hemanta Kafley, Wildlife Sciences, Tarleton State University, Texas, USA
Dr. Heok Hee Ng, National University of Singapore, Science Drive, Singapore
Dr. Rajeev Raghavan, St. Albert’s College, Kochi, Kerala, India                               Other Disciplines
Dr. Robert D. Sluka, Chiltern Gateway Project, A Rocha UK, Southall, Middlesex, UK
Dr. E. Vivekanandan, Central Marine Fisheries Research Institute, Chennai, India              Dr. Aniruddha Belsare, Columbia MO 65203, USA (Veterinary)
Dr. Davor Zanella, University of Zagreb, Zagreb, Croatia                                      Dr. Mandar S. Paingankar, University of Pune, Pune, Maharashtra, India (Molecular)
Dr. A. Biju Kumar, University of Kerala, Thiruvananthapuram, Kerala, India                    Dr. Jack Tordoff, Critical Ecosystem Partnership Fund, Arlington, USA (Communities)
Dr. Akhilesh K.V., ICAR-Central Marine Fisheries Research Institute, Mumbai Research          Dr. Ulrike Streicher, University of Oregon, Eugene, USA (Veterinary)
Centre, Mumbai, Maharashtra, India                                                            Dr. Hari Balasubramanian, EcoAdvisors, Nova Scotia, Canada (Communities)
Dr. J.A. Johnson, Wildlife Institute of India, Dehradun, Uttarakhand, India                   Dr. Rayanna Hellem Santos Bezerra, Universidade Federal de Sergipe, São Cristóvão, Brazil
                                                                                              Dr. Jamie R. Wood, Landcare Research, Canterbury, New Zealand
Amphibians                                                                                    Dr. Wendy Collinson-Jonker, Endangered Wildlife Trust, Gauteng, South Africa
                                                                                              Dr. Rajeshkumar G. Jani, Anand Agricultural University, Anand, Gujarat, India
Dr. Sushil K. Dutta, Indian Institute of Science, Bengaluru, Karnataka, India                 Dr. O.N. Tiwari, Senior Scientist, ICAR-Indian Agricultural Research Institute (IARI), New
Dr. Annemarie Ohler, Muséum national d’Histoire naturelle, Paris, France                      Delhi, India
                                                                                              Dr. L.D. Singla, Guru Angad Dev Veterinary and Animal Sciences University, Ludhiana, India
Reptiles                                                                                      Dr. Rupika S. Rajakaruna, University of Peradeniya, Peradeniya, Sri Lanka
                                                                                              Dr. Bahar Baviskar, Wild-CER, Nagpur, Maharashtra 440013, India
Dr. Gernot Vogel, Heidelberg, Germany
Dr. Raju Vyas, Vadodara, Gujarat, India
Dr. Pritpal S. Soorae, Environment Agency, Abu Dubai, UAE.                                    Reviewers 2018–2020
Prof. Dr. Wayne J. Fuller, Near East University, Mersin, Turkey                               Due to pausity of space, the list of reviewers for 2018–2020 is available online.
Prof. Chandrashekher U. Rivonker, Goa University, Taleigao Plateau, Goa. India
Dr. S.R. Ganesh, Chennai Snake Park, Chennai, Tamil Nadu, India
Dr. Himansu Sekhar Das, Terrestrial & Marine Biodiversity, Abu Dhabi, UAE

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  NAAS rating (India) 5.64                                                                   ravi@threatenedtaxa.org
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                                                                          ISSN 0974-7907 (Online) | ISSN 0974-7893 (Print)

                                                                       January 2022 | Vol. 14 | No. 1 | Pages: 20311–20538
                                                                       Date of Publication: 26 January 2022 (Online & Print)
www.threatenedtaxa.org                                                     DOI: 10.11609/jott.2022.14.1.20311-20538

Articles                                                                                  Revival of Eastern Swamp Deer Rucervus duvaucelii ranjitsinhi (Groves, 1982) in
                                                                                          Manas National Park of Assam, India
Estimating the completeness of orchid checklists and atlases: a case study from           – Nazrul Islam, Aftab Ahmed, Rathin Barman, Sanatan Deka, Bhaskar Choudhury,
southern Italy                                                                            Prasanta Kumar Saikia & Jyotishman Deka, Pp. 20488–20493
– Antonio Croce, Pp. 20311–20322
                                                                                          Trypanosoma evansi infection in a captive Indian Wolf Canis lupus pallipes
A floristic survey across three coniferous forests of Kashmir Himalaya, India – a         – molecular diagnosis and therapy
checklist                                                                                 – Manojita Dash, Sarat Kumar Sahu, Santosh Kumar Gupta, Niranjana Sahoo & Debarat
– Ashaq Ahmad Dar, Akhtar Hussain Malik & Narayanaswamy Parthasarathy, Pp.                Mohapatra, Pp. 20494–20499
20323–20345

Associations of butterflies across different forest types in Uttarakhand, western         View Point
Himalaya, India: implications for conservation planning
– Arun Pratap Singh, Pp. 20346–20370                                                      COVID-19 and civil unrest undoing steady gains in karst conservation and
                                                                                          herpetological research in Myanmar, and an impediment to progress
Comparison of bird diversity in protected and non-protected wetlands of western           – Evan S.H. Quah, Lee L. Grismer, Perry L. Wood, Jr., Aung Lin & Myint Kyaw Thura,
lowland of Nepal                                                                          Pp. 20500–20502
– Jagan Nath Adhikari, Janak Raj Khatiwada, Dipendra Adhikari, Suman Sapkota, Bishnu
Prasad Bhattarai, Deepak Rijal & Lila Nath Sharma, Pp. 20371–20386
                                                                                          Short Communications
Local hunting practices and perceptions regarding the distribution and ecological role
of the Large Flying Fox (Chiroptera: Pteropodidae: Pteropus vampyrus) in western          Morphological characterization and mt DNA barcode of a tiger moth species, Asota
Sarawak, Malaysian Borneo                                                                 ficus (Fabricius, 1775) (Lepidoptera: Noctuoidea: Erebidae: Aganainae) from India
– Jayasilan Mohd-Azlan, Joon Yee Yong, Nabila Norshuhadah Mohd Hazzrol, Philovenny        – Aparna Sureshchandra Kalawate, K.P. Dinesh & A. Shabnam, Pp. 20503–20510
Pengiran, Arianti Atong & Sheema Abdul Aziz, Pp. 20387–20399
                                                                                          Distribution of Smooth-coated Otters Lutrogale perspicillata (Mammalia: Carnivora:
                                                                                          Mustelidae): in Ratnagiri, Maharashtra, India
Communications                                                                            – Swanand Patil & Kranti Yardi, Pp. 20511–20516

Macrolichens of Mathikettan Shola National Park, Western Ghats: a preliminary             Wildlife at the crossroads: wild animal road kills due to vehicular collision on a
investigation with some new records                                                       mountainous highway in northwestern Himalayan region
– Aswathi Anilkumar, Stephen Sequeira, Arun Christy & S.M. Arsha, Pp. 20400–20405         – Muzaffar A. Kichloo, Asha Sohil & Neeraj Sharma, Pp. 20517–20522

New distribution record of globally threatened Ocean Turf Grass Halophila beccarii
Ascherson, 1871 from the North Andaman Islands highlights the importance of               Notes
seagrass exploratory surveys
– Swapnali Gole, Prasad Gaidhani, Srabani Bose, Anant Pande, Jeyaraj Antony Johnson       Robiquetia gracilis (Lindl.) Garay—a new record to the flora of Anamalai Hills, Tamil
& Kuppusamy Sivakumar, Pp. 20406–20412                                                    Nadu, India
                                                                                          – B. Subbaiyan, V. Ganesan, P.R. Nimal Kumar & S. Thangaraj Panneerselvam, Pp.
An inventory of new orchid (Orchidaceae) records from Kozhikode, Kerala, India            20523–20525
– M. Sulaiman, C. Murugan & M.U. Sharief, Pp. 20413–20425
                                                                                          Ipomoea laxiflora H.J. Chowdhery & Debta (Convolvulaceae): new records for the
Abundance and spatial distribution analyses of Stemonoporus moonii Thwaites               Western Ghats and semiarid regions
(Dipterocarpaceae) - a critically endangered species endemic to Sri Lanka                 – Sachin M. Patil, Ajit M. Vasava, Vinay M. Raole & Kishore S. Rajput, Pp. 20526–20529
– K.A.M.R.P. Atapattu, H.D.D.C.K. Perera, H.S. Kathriarachchi & A.R. Gunawardena,
Pp. 20426–20432                                                                           Counting the cost: high demand puts Bunium persicum (Boiss.) B.Fedtsch. in
                                                                                          jeopardy
Plant diversity of Point Calimere Wildlife Sanctuary and fodder species grazed by the     – Monika Sharma, Manisha Mathela, Rupali Sharma, Himanshu Bargali, Gurinderjit S.
Blackbuck Antilope cervicapra L.                                                          Goraya & Amit Kumar, Pp. 20530–20533
– Ashutosh Kumar Upadhyay, A. Andrew Emmanuel, Ansa Sarah Varghese &
D. Narasimhan, Pp. 20433–20443                                                            First record of Parasitic Jaeger Stercorarius parasiticus (Aves: Charadriiformes:
                                                                                          Stercorariidae) from inland freshwater Inle Lake, Myanmar
Raptors observed (1983–2016) in National Chambal Gharial Sanctuary:                       – Sai Sein Lin Oo, Myint Kyaw, L.C.K. Yun, Min Zaw Tun, Yar Zar Lay Naung, Soe Naing
semi-arid biogeographic region suggestions for parametric studies on ecological           Aye & Swen C. Renner, Pp. 20534–20536
continuity in Khathiar-Gir Ecoregion, India
– L.A.K. Singh, R.K. Sharma & Udayan Rao Pawar, Pp. 20444–20460
                                                                                          Book Review
Nesting success of Sharpe’s Longclaw (Macronyx sharpei Jackson, 1904) around the
grasslands of lake Ol’bolossat Nyandarua, Kenya                                           Capparis of India
– Hamisi Ann Risper, Charles M. Warui & Peter Njoroge, Pp. 20461–20468                    – V. Sampath Kumar, Pp. 20537–20538

Population, distribution and diet composition of Smooth-coated Otter Lutrogale                                                               Publisher & Host
perspicillata Geoffroy, 1826 in Hosur and Dharmapuri Forest Divisions, India
– Nagarajan Baskaran, Raman Sivaraj Sundarraj & Raveendranathanpillai Sanil, Pp.
20469–20477

Utilization of home garden crops by primates and current status of
human-primate interface at Galigamuwa Divisional Secretariat Division in
Kegalle District, Sri Lanka
– Charmalie Anuradhie Dona Nahallage, Dahanakge Ayesha Madushani Dasanayake,
Dilan Thisaru Hewamanna & Dissanayakalage Tharaka Harshani Ananda, Pp. 20478–
20487
                                                                                                                                             Threatened Taxa
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