Journal of Threatened Taxa |
www.threatenedtaxa.org | 26 July 2022 | 14(7): 21396–21401
ISSN 0974-7907 (Online) | ISSN 0974-7893
(Print)
https://doi.org/10.11609/jott.7870.14.7.21396-21401
#7870 | Received 06 February 2022 | Final
received 01 July 2022 | Finally accepted 11 July 2022
First camera trap record of
Striped Hyena Hyaena hyaena (Linnaeus, 1758)
(Mammalia: Carnivora: Hyaenidae) in Parsa National Park, Nepal
Pramod Raj Regmi
1 , Madhu Chetri 2, Haribhadra Acharya 3, Prakash Sigdel 4, Dipendra
Adhikari 5, Naresh Subedi 6 & Babu Ram
Lamichhane 7
1 National Trust for Nature
Conservation, P.O. Box.3712, Khumaltar, Lalitpur,
Nepal.
2 National Trust for Nature
Conservation, P.O. Box.3712, Khumaltar, Lalitpur,
Nepal, Faculty of Applied Ecology, Agricultural Sciences and Biotechnology,
Inland Norway University of Applied Sciences, NO-2480 Koppang,
Norway.
3 Department of National Park and
Wildlife Conservation, Babarmahal, Kathmandu, Nepal.
4 Zoological Society of London
Nepal Office, Kathmandu, Nepal.
5 Nepal Conservation & Research
Center, Chitwan, Nepal.
6 National Trust for Nature
Conservation, P.O. Box.3712, Khumaltar, Lalitpur,
Nepal.
7 National Trust for Nature
Conservation, P.O. Box.3712, Khumaltar, Lalitpur,
Nepal.
1 regmiprr11@gmail.com (corresponding
author), 2 mchetri@gmail.com, 3 hbacharya07@gmail.com, 4
sigdelprakash07@gmail.com,
5 dipenadk2005@gmail.com, 6 nareshsubedi@gmail.com, 7
baburaml@gmail.com
Abstract: The Striped Hyena occurs in the Tarai and midhill regions of
Nepal, where limited information is available on species distribution. A camera
trap survey was conducted in Parsa National Park in
2016 (Feb–May) and 2016–2017 (Nov–Feb) to monitor tigers at 158 locations for
21 days (6,615 trap efforts in total).
This study successfully captured the 15 hyena images in 5 grids of
eastern part (named as extension area) of national park. A total of 17 mammal
species were captured simultaneously in hyena captured grid during the survey
period. The presence of hyenas in Parsa National Park
indicates the collective efforts of the government, conservation organizations
and local communities in hyena conservation. A detailed ecological study of
this species has been recommended for designing hyena conservation plan in the
region.
Keywords: Camera trap survey,
conservation, distribution, extension area, grid, hyenas, mammal.
Editor: Karan
Bahadur Shah, Budhanilakantha Municipality,
Kathmandu, Nepal. Date of publication:
26 July 2022 (online & print)
Citation: Regmi,
P.R., M. Chetri, H. Acharya, P. Sigdel,
D. Adhikari, N. Subedi & B.R. Lamichhane
(2022). First camera trap record of
Striped Hyena Hyaena hyaena (Linnaeus, 1758)
(Mammalia: Carnivora: Hyaenidae) in Parsa National Park, Nepal. Journal of Threatened Taxa 14(7): 21396–21401. https://doi.org/10.11609/jott.7870.14.7.21396-21401
Copyright: © Regmi
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: Funded by ZSL in
collaboration with DNPWC and NTNC.
Competing interests: The authors
declare no competing interests.
Author details: Pramod
Raj Regmi: Natural Resource Conservation
Assistant, National Trust for Nature Conservation. Madhu Chetri: Project Chief,
National Trust for Nature Conservation-Gaurishankar
Conservation Area Project. Haribhadra Acharya: Chief Conservation Officer,
Department of National Parks & Wildlife Conservation-Chitwan National Park.
Prakash Sigdel:
Wildlife Biologist, Zoological Society of London-Nepal Office. Dipendra Adhikari: Wildlife Biologist, Nepal
Conservation & Research Center, Chitwan. Naresh
Subedi: Department Head, Species Conservation,
National Trust for Nature Conservation-Central Office. Baburam Lamichhane: Office Incharge, National Trust for Nature
Conservation-Biodiversity Conservation Center.
Author contributions: PRR, MC, HA, NS & BL:
conceptualize the study; PRR, PS, DA: conducted field survey, PRR, PS, DA: compiled and cleaning the data;
PRR, MC: finalized the manuscript;MC, HA, NS &
BL: supervised the study.
Acknowledgements: We are thankful to the Department
of National Parks and Wildlife Conservation for supporting to carry out this
research. Special thanks goes to the Zoological Society of London-Nepal office
for arranaging financial support for camera trapping
study in Parsa National Park. We are grateful to Parsa National Park and National Trust for Nature
Conservation for the technical support, field mobilization and assistance in
the camera trap survey. We are grateful for the financial support (Article
Processing Contribution) from the project “Capacity building for joint
education and research in applied ecology”, which is a collaborative project
coordinated by the Inland Norway University of Applied Sciences, Kathmandu
University, and the National Trust for Nature Conservation, Nepal. We are
equally grateful to all team members involved in this survey.
Introduction
Striped Hyena Hyaena hyaena occupy a large geographic range that encompasses
eastern Africa, central Asia, the Indian subcontinent, Turkey, and central
Tanzania (Mills & Hofer 1998). Hyenas are solitary nocturnal scavengers,
feeding on carcasses, dead remains, and waste produced by human communities (Yirga et al. 2014). They survive 10–12 years in the wild.
Hyenas are recorded at up to 1,750 m in Nepal (Bhandari & Bhusal 2017) and 3,300 m in Pakistan (Alam
et al. 2014). In Nepal, hyenas are distributed in the lowland areas (protected
& outside of the protected areas) of the Tarai
and midhill regions, and there are estimated to be
fewer than 100 individuals in the wild (Jnawali et
al. 2011).
Hyenas are a nationally protected
priority species under the National Parks and Wildlife Conservation Act, 1973
and listed as Endangered in the National Red List Series (Jnawali
et al. 2011). They are listed as the Near Threatened category in the IUCN Red
List of Threatened Species, and believed to be fewer than 10,000 mature
individuals worldwide (AbiSaid & Dloniak 2015). Their population is declining across its
geographic range due to habitat alteration (Ripple et al. 2014) and facing
various anthropogenic pressure, habitat loss & fragmentation, prey
population depletion, poaching & illegal trade, retaliatory killing, and
competition with other large carnivores species like tigers, and leopards (Inskip & Zimmermann 2009). Their historic and present
range including their distribution, population, habitat, ecology, and diet
preferences are little known due to limited study (Singh et al. 2010). Although,
several national surveys for tigers and their prey base monitoring were
conducted before 2015, there was no photographic evidence and scientific
documentation of the presence of hyenas in the Parsa
National Park (PNP). This article presents camera trap records of hyenas in PNP
for the first time. Mammals associated with hyenas that were captured during
the survey period are also discussed. It is hoped that this study will bring
attention of the government and concerned conservation agencies to conduct
further ecological studies of this important scavenger.
Materials
and Methods
Study Area
The study area in PNP (Figure 1)
is located in the south-central lowland areas of the Tarai
region (27.25–27.55 °N, 84.68–84.97 °E). It covers an area of 627.39 km2
and is 188 km (south-west) from Kathmandu. The park covers three districts: Parsa (70%), Bara (18%), and Makwanpur
(12%). Historically, Parsa served as a vacation and
hunting site for the Rana Rulers of Nepal. It was established as a wildlife
reserve in 1983 encompassing an area of 499 km2 to protect the
habitat of Asian Wild Elephants. In
2005, the Government of Nepal (GoN) declared the
Buffer Zone area (285 km2) around the reserve and implemented
community-based conservation programs. The GoN
extended the reserve area by 128 km2 in 2015 in the eastern part
(named as the extension area), highlighting that this forest area serves as an
important habitat for globally threatened animals including tigers and rhinos.
There have been past records of tigers, their cubs and other animals in camera
trap monitoring conducted in the extension area (PNP 2020). In 2017, the
reserve was gazetted as a national park to preserve and improve the habitat of
wildlife and support landscape-level conservation. The PNP provides an extended
habitat for the spill-over population of megafauna as it adjoins to Balmiki Tiger Reserve of Bihar state of India in the south
and Chitwan National Park in the west.
The PNP harbors
diverse animals including Bengal Tiger Panthera
tigris tigris, Common
Leopard Panthera pardus,
Striped Hyena Hyaena hyaena, Dhole Cuon alpinus, Golden
Jackal Canis aureus, Indian Fox Vulpes
bengalensis, and Honey Badger Mellivora
capensis. Wild herbivore prey species include
Gaur Bos gaurus gaurus, Sambar
Rusa unicolor, and Nilgai Boselaphus tragocamelus,
Spotted Deer Axis axis, Barking Deer Muntiacus vaginalis, and Wild Pig Sus scrofa. Non-human primates include langur Semnopithecus sp. and Rhesus Monkey Macaca mulatta. 37
mammal species, 31 butterflies, 13 reptiles, and 490 birds were recorded in the
park (PNP 2018). The forests of PNP and its buffer zones consist of 70%
vegetation which is dominated by Sal Shorea
robusta forest, and the vegetation can best be
described as a subtropical, dry, deciduous forest with colonizing wild
sugarcane Saccharum spontaneum,
and Cogon Grass Imperata cylindrica on the dry riverbeds and the floodplains, to
a climax Sal forest on Bhabhar and hillsides. In the Churia hills, Chir Pine Pinus roxburghii grows, and along the streams and river
sides, Khair Acacia catechu, Sissoo Dalbergia sissoo, and Silk Cotton Tree Bombax ceiba occur.
Sabai grass Enlaliopsis
binata, a commercially important grass, grows
well on the southern face of the churia hills. The
elevation of the park ranges between 100–950 m and lies in a humid subtropical
climatic zone with a record of the mean minimum temperature of 7°C to mean
maximum temperature of 39°C; 83% of the total precipitation occurs mainly from
June to September (PNP 2018).
Camera trap survey
Two camera trap surveys were
carried out in PNP. The first was in 2016 (Survey I) and the second survey in
2016–2017 (Survey II). Both surveys covered the whole area of the national
park, which was divided into three blocks. The camera trapping survey was
conducted in three deployment phases to manage the availability of skilled
manpower, camera number, financial constraints, and surveyed all blocks. We
overlaid a total of 167 systematic grids 2 x 2 km in area. A pair of camera
traps was placed on each systematic grid cell, set 4–6 m apart, 45–60 cm above
the ground surface for 21 days. Wegge et al. (2004)
recommended that a trapping duration at each set of camera traps (i.e.,
sampling occasion) should be at least 15 days (nights), with a distance between
neighboring traps not exceeding 2 km. The cameras
were operational and functional 24 hours of a day, and were monitored every 1–3
days of deployment to check their performance, battery status and photo
capture, and to collect data of animal tracks and movements in the areas. Panthera V5 cameras were used in this study. The same
method was used for both years. Images captured at an interval of 30 minutes
were considered independent events (Silver et al. 2004; Thapa et al. 2014). The
trapping rate was calculated by the number of independent images/total number
of captured images per 100 trap nights (Karanth &
Nichols 2002). We also examined associated species and discuss their presence.
Results
A total of 158 and 157 cameras
were functional in Survey I & Survey II, respectively. The total trap
efforts were 3,318 in the first survey and 3,297 in the second survey. We
obtained 15 images of hyenas from five grids (Survey I–III grids: 8 images,
Survey II- 4 grids: 7 images) and captured four independent hyena images in two
consecutive surveys (Image 1A,B). We obtained images of a hyena from the camera
traps installed at the eastern part of the national park at Mahendra
Highway (Amlekhgunj Pathlaiya
Section) and the newly extended area (Figure 1). The capture rate of hyenas was
calculated at 0.120 and 0.121 per 100 trap nights in Surveys I and II,
respectively (Table 1). We captured hyenas in camera traps located 1 to 1.5 km
away from the nearest human settlement and water sources of the extension area
(Table 2). Altogether, 17 mammal species were recorded in hyena capture grids
during the two consecutive survey periods (Table 3).
Discussion
We recorded the first photographic evidence of a Striped
Hyena in Parsa National Park, Nepal. A recent paper
which was based on a literature review also mentioned the presence of hyena in
PNP (Neupane et al. 2021) but lacks photographic
evidence. Camera trap monitoring of tigers and their prey in PNP during surveys
conducted in 2009, 2013, and 2014, did not detect the presence of hyenas. In
2016 and 2017, we captured hyena images in grid at the eastern part (extension
area) of PNP near human settlements and water sources (Table 2), consistent
with other reports (Hofer 1998) that hyenas frequently forage on garbage and
carrion near human habitations (Tourani et al. 2012; Alam et al. 2014; AbiSaid & Dloniak 2015). Similarly, hyenas choose disturbed/fringe
habitats due to the availability of easy food sources (Singh et al. 2014). Halkhoriya Daha (lake) is the
major water source of the extension area of PNP and supports various species of
wildlife. The availability of water sources might have attracted hyenas in the
area.
In PNP, the park authorities are
conducting habitat management activities (e.g., grassland management,
patrolling, fireline maintenance, pond construction)
and enabling law enforcement (DNPWC & DFSC 2018) which may provide adequate
food for the hyena. Such activities in the park might help hyenas and their
associated species in recolonizing the area. Also, the northern part of PNP is
contagious to the churia hills that encompass hilly
terrain habitats and thus may provide optimal refuges and denning sites for
hyenas. We recorded 17 mammal species in hyena image capture locations during
two survey years (Table 3), with tiger and leopard being the major sympatric
carnivores. Hyenas are directly or indirectly affected by decreasing natural
food resources (Khorozyan et al. 2011), high
competition, and increased anthropogenic pressure. The latest tiger monitoring
reveals that the Tiger numbers in PNP are increasing (Lamichhane
et al. 2018), which might push hyenas more into fringe areas in the future,
although hyenas occur sympatrically with tigers in
various parts of India (Harihar et al. 2010). Hyenas were not recorded in the
camera traps deployed in the core areas of the western part of the national
park. This might be due to inadequate water resources, preferred habitat and
prey availability, and competition with carnivore species such as tigers and
leopards. Hyenas are very susceptible to accidental or targeted poisoning (AbiSaid & Dloniak 2015).
Recently, Adhikari et al. (2018) recorded a road kill of hyena outside the
eastern part of PNP nearby Nijgadh City which is
contiguous to the PNP boundary. Similarly, other top carnivore species
predation to livestock accelerates the retaliatory killing which may directly
or indirectly affect the hyena population.
The overall trapping rate of
hyenas in our study was 0.120 and 0.121 in 2016 and 2017, respectively. The low
trapping rate implies that the population is very low in the region. This may
be due to the presence of a low prey population in the area. Also, the prey
density estimates in PNP and its adjoining forests was 22 (SE 3.8)/ km2,
which is rather lower than the neighbouring Chitwan National Park (DNPWC &
DFSC 2018). Similarly, the Government of Nepal conservation organization, and
communities are carrying out conservation activities especially focusing on
tigers and rhinos in lowland protected areas. This has limited the conservation
and research priority to other important species (Katuwal
et al. 2018) including hyenas. The extension area of PNP can be an ideal site
for hyenas if the concerned authorities continue their efforts on habitat
management activities and law enforcement. The awareness activities and
conservation programs in the buffer zone area of the national park are solely
needed for the long-term conservation of hyenas. Furthermore, a detailed
ecological study particularly focusing on hyenas is required for estimating
their abundance, distribution, diet preferences, and assessing current
conservation threats. This information
will be crucial in future for designing hyena conservation plans in the region.
Table 1. Hyena captured details
in Parsa National Park, Nepal.
|
Parameters |
Survey period |
|
2016 (Feb–May) |
2016–2017 (Nov–Feb) |
||
1 |
Total survey area |
627.39 km2 |
627.39 km2 |
2 |
Camera trap location |
158 |
157 |
3 |
Sampling occasion |
21 |
21 |
4 |
Trap efforts |
3318 |
3297 |
5 |
Hyena captured grids |
3 |
4 |
6 |
Independent capture events |
4 |
4 |
7 |
Capture rate/100 traps |
0.120 |
0.121 |
Table 2. Hyena captured location
details of Parsa National Park, Nepal.
Captured Grid ID |
Captured year |
Habitat type |
Settlements distance (km) |
Distance to water sources (km) |
P16 |
2016 |
Sal forest |
6.3 (Pathlaiya)
2.1(Amlekhgunj) |
1 |
P17 |
2016 & 2016/2017 |
Sal forest |
4.9 (Amlekhgunj) 3.6 (Pathlaiya)
|
0.5 |
R15 |
2016 & 2016/2017 |
Sal forest |
3.6 (Dammarpur) 1.5 (Chakari
) |
0.5 |
S18 |
2016/17 |
Riverbed |
4.93 (Piluwa) 4.76 (Ratanpuri) |
0.1 |
T16 |
2016/17 |
Sal forest |
2.6 (Dammarpur) 2.2 (Ratanpuri) |
0.7 |
Table 3. Associated mammalian
species recorded in hyena captured grid cells during the survey period.
|
Species name |
Scientific name |
Survey period |
|
2016 (Feb–May) |
2016–2017 (Nov–Feb) |
|||
1 |
Four-horned Antelope |
Tetracerus quadricornis |
√ |
√ |
2 |
Barking Deer |
Muntiacus vaginalis |
√ |
√ |
3 |
Spotted Deer |
Axis axis |
√ |
√ |
4 |
Indian Hare |
Lepus nigricollis |
√ |
√ |
5 |
Wild Boar |
Sus scrofa |
√ |
√ |
6 |
Bengal Fox |
Vulpes bengalensis |
√ |
√ |
7 |
Golden Jackal |
Canis aureus |
X |
√ |
8 |
Jungle Cat |
Felis chaus |
√ |
√ |
9 |
Leopard |
Panthera pardus |
√ |
√ |
10 |
Leopard Cat |
Prionailurus bengalensis |
√ |
√ |
11 |
Tiger |
Panthera tigris |
√ |
X |
12 |
Indian Grey Mongoose |
Urva edwardsii |
X |
√ |
13 |
Terai Langur |
Semnopithecus hector |
|
X |
14 |
Rhesus Monkey |
Macaca mulatta |
√ |
√ |
15 |
Indian Crested Porcupine |
Hystrix indica |
X |
√ |
16 |
Honey Badger |
Mellivora capensis |
X |
√ |
17 |
Large Indian Civet |
Viverra zibetha |
√ |
√ |
√—presence | X—absence.
For figure &
image - - click here (for full PDF)
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