Status of Golden Jackal Canis aureus and ungulates in a small enclosed area- Van Vihar National Park, Madhya Pradesh, India

 

S. Prerna 1, Advait Edgaonkar 2 & Yogesh Dubey 3

 

1 Wildlife Institute of India, Chandrabani, Dehradun, Uttarakhand 248001, India

2,3 Indian Institute of Forest Management, Nehru Nagar, Bhopal, Madhya Pradesh 462003, India

1 prernawildlife@gmail.com (corresponding author), 2 advaite@iifm.ac.in, 3 ydubey@iifm.ac.in

 

 

 

doi: http://dx.doi.org/10.11609/JoTT.o4214.7416-21

Editor: Mewa Singh, University of Mysore, Mysuru, India. Date of publication: 26 June 2015 (online & print)

 

Manuscript details: Ms # o4214 | Received 28 January 2015 | Final received 09 May 2015 | Finally accepted 05 June 2015

 

Citation: Prerna, S., A. Edgaonkar & Y. Dubey (2015). Status of Golden Jackal Canis aureus and ungulates in a small enclosed area- Van Vihar National Park, Madhya Pradesh, India. Journal of Threatened Taxa 7(8): 7416–7421; http://dx.doi.org/10.11609/JoTT.o4214.7416-21

 

Copyright: © Prerna et al. 2015. Creative Commons Attribution 4.0 International License. JoTT allows unrestricted use of this article in any medium, reproduction and distribution by providing adequate credit to the authors and the source of publication.

 

Funding: Self funded by first author, in kind funding by IIFM and WII.

 

Competing interests: The authors declare no competing interests.

 

Author Details: S. Prerna is a researcher at Wildlife Institute of India.  Prerna has worked in All India tiger monitoring project 2013-15 and  has worked for 5 years on captive bear rehabilitation. This work was for her MPhil thesis at IIFM, Bhopal. Apart from carnivore ecology, Prerna is interested in animal behavior and conservation. Advait Edgaonkar is an Assistant Professor at Indian Institute of Forest Management, Bhopal. He has a PhD in Wildlife Ecology and Conservation. He is interested in carnivore ecology and is presently estimating the population of domestic dogs in Bhopal city. Yogesh Dubey is an Associate Professor at IIFM,Bhopal. He has a PhD in wildlife science. He is interested in biodiversity impact assessment studies and Protected area management.

 

Author Contribution:  SP - Study design, Analysis, Field Work, Lab Work, Writing; AE - Study design, Analysis; YD - Logistics, study design.

 

Acknowledgements: We acknowledge the Madhya Pradesh Forest Department for permissions, Wildlife Institute of India and Indian Institute of Forest Management for logistics support. We thank Dr. Y.V. Jhala and Q. Qureshi for the technical support.

 

 

 

Abstract: We estimated densities of Golden Jackals and five ungulate species in Van Vihar National Park, Madhya Pradesh, India. It is an enclosed area of about 4.45km², out of which 3.5km² is available for free ranging animals. Twenty-six transects with a combined length of 22.6km and an effort of 50.2km were walked. A total of 1079 animal detections belonging to six different species were made. The density of jackals was (17±3.8SE)/km2. Among the ungulates, chital had the highest density (118±18.8SE)/km2 followed by Sambar (34.1±6.9 SE)/km2, Nilgai (13.1±2.8SE)/km2, Blackbuck (6.6±1.5 SE)/km2 and Wild Pig (3.7±0.8 SE)/km2. The ungulate biomass was found to be (12979.2±2463.26 SE)kg/km2.  Chital biomass was the highest at (5574.2±886.58 SE)kg/km2, followed by Sambar biomass of (4569.4±913.75 SE)kg/km2, Nilgai (2358±523.24 SE)kg/km2, Blackbuck (211.2±66.18 SE)kg/km2 and Wild Pig (118.4±28.37 SE)kg/km2. The sex ratio was calculated and most ungulates had female-biased adult sex ratio.

 

Keywords: Biomass, Canis aureus, density, Golden Jackals, line transect, population, ungulates.

Introduction

 

Scientific monitoring programs developed for the purpose of management have two objectives: to identify the state of the system and to provide information on the response of the system to the management actions (Yoccuz et al. 2001).  Monitoring of carnivores and ungulate populations is needed to evaluate the success or failure of management practices, to establish standard data that can serve as a basis for future management and to develop a body of empirical and theoretical knowledge that can improve our capacity to deal with new situations (Karanth et al. 2002). Van Vihar National Park (VVNP) is a small protected area, which has also been developed and managed as a modern zoological park. The major carnivore in VVNP is the Golden Jackal Canis aureus. Ungulates found here are Chital Axis axis, Sambar Rusa unicolor, Nilgai Boselaphus tragocamelus, Blackbuck Antilope cervicapra and Wild Pig Sus scrofa. The aim of our present study was to obtain the first objective, i.e., to characterize the state of the system by obtaining a baseline estimate of population densities of Golden Jackals and five species of ungulates in the park, so that future management decisions are based on scientifically gathered data.

 

 

Materials and Methods

 

Study Area

We estimated the densities of the Golden Jackal and some ungulates using line transect sampling in VVNP (23.23000N & 77.36640E), Madhya Pradesh, India, between March and May 2013. VVNP is situated at the foot of the Shyamla Hills, which is one of the several hills constituting the geography of the city of Bhopal, the capital of Madhya Pradesh in central India. It is on the fringe of the Upper Lake, which is a Ramsar Site, and was declared as a national park in 1983. The total area is about 4.45km², out of which only 3.5km² is available for free ranging animals, the rest being enclosures for captive animals. It houses species like Tiger Panthera tigris, Leopard Panthera pardus, Lion Panthera leo persica, Sloth Bear Melursus ursinus, Striped Hyena Hyaena hyaena, crocodiles and several species of snakes (Van Vihar National Park 2011).

The natural areas are tropical dry deciduous forest, comprising of species such as Aegle marmelos, Wrightia tinctoria, Cassia fistula, Acacia nilotica, Anona squamosal, Anogeissus latifolia, Adina cordifolia, Butea monosperma, Phoenix spp., Holarrhena antidysenterica, Acacia catechu, Diospyros melanoxylon, Lagestromia parviflora, Tamarindus indica and Zizyphus mauritiana.

VVNP has a concrete wall above which there is barbed wire fencing along its northern and eastern boundary. On its west, the VVNP has a five kilometer stretch of lake fenced off with a wire mesh. The areas abutting VVNP are the residential localities of Shyamla Hills and Prempura Village, and the campuses of the Regional Institute of Education and Indira Gandhi Rashtriya Manav Sangrahalaya (National Museum of Mankind), an anthropological museum. However, given the natural topography of the area, it is possible that the jackals from within VVNP can venture into the neighboring townships to exploit garbage resources. There are many visitors to this park, there are dustbins provided for the public use. There is a canteen and some tea shops. The scraps of leftover food from the housed carnivores are often dumped within VVNP and are likely scavenged upon by the jackals.

 

Method

VVNP has 26 permanent systematically marked transects for annual census of free ranging animals (Fig. 1.), totaling a length of 22.6km. These 26 transects were walked in summer (March and April) in the early morning and evening during times of peak jackal (Patil & Jhala 2008) and ungulate activity (Sankar & Goyal 2004). While walking on these transects, whenever an animal or group of animals was/were detected, a laser rangefinder (Bushnell Sports 850) was used to record the sighting distance to the animal or center of the group and a magnetic compass (Suunto MC-2) was used to record the bearing to the animal or center of the group. Other data such as date, time, cluster size, species, numbers and whenever possible sex and age class (adult, sub adult and fawn/calf) were also recorded. To estimate density of jackals and ungulates of VVNP, analysis was carried out for each species using Program DISTANCE 6.0 release 2 (Thomas et al. 2010). Exploratory analyses of the data were carried out (Buckland et al. 2001) to check for any evidence of evasive movement before detection, ‘rounding’ and ‘heaping’ of data and to truncate outlier observations, if necessary, for improving model fit. The fit of possible alternative models to each data set was judged using Akaike information criteria (AIC) values (Buckland et al. 2001) which presented a compromise between the quality of fit and increased number of model parameters and the goodness of fit tests generated by program DISTANCE (Burnham & Anderson 2003). Once an appropriate model was selected, parameters such as encounter rate (n/L), strip width (ESW), average probability of detection (p), cluster density (Ds), cluster size (Y) and animal density (D) were estimated by program itself (Burnham et al. 1980; Buckland et al. 1993). We computed sex ratio using the “sampling with replacement” (Skalski et al. 2005) approach as number of adult females to adult males.

 

 

 

 

 

The density estimates were then used to estimate the biomass of ungulates in the study area. The biomass (kg/km2) of each ungulate was calculated by multiplying the mean individual density (D) by its average estimated unit weight (Wegge et al. 2009). Estimates of body weight for south Asian major ungulate species were obtained from Schaller (1967), Eisenberg & Seidensticker (1976), Johnsingh (1983), Mungall (1991), Karanth & Sunquist (1992), Wegge et al. (2009) and Leslie (2011).

Results

 

Density Estimation

In total, 50.2km were traversed with a total of 1079 animal observations belonging to six different species (Table 1). While a total six species were sighted, adequate numbers, i.e., ≥40 (Burnham et al. 1980; Buckland et al. 1993) were available for jackals, Chital, Nilgai, Sambar, and Blackbuck but not for Wild Pig. The sex ratio of most ungulates was female biased. Sex ratios of four ungulates are presented in Table 2. The Sambar dataset showed evidence of ‘heaping’ of data. Based on comparisons of AIC values, the half–normal model with one cosine adjustment best described the jackal, Chital and Nilgai dataset, with polynomial adjustment fitted Sambar and Wild Pig, while uniform with polynomial adjustment was best fit for Blackbuck. The estimates generated by the DISTANCE analyses are presented in Table 1. The density (+SE) of jackal was 17±3.8 per km2. Among the ungulates, Chital had the highest density (118±18.8) per km2 followed by Sambar (34.1±6.9) per km2, Nilgai (13.1±2.8) per km2, Blackbuck (6.6±1.5) per km2 and Wild Pig (3.7±0.8) per km2.

 

 

 

 

 

Biomass Estimates

Chital biomass was the highest with contribution to overall ungulate biomass followed by Sambar, Nilgai, Blackbuck and Wild Pig (Table 3).

 

 

Discussion

 

Over 80,000 Golden Jackals are estimated for the Indian sub-continent, being in higher densities where there is abundant food and cover (Jhala & Moehlman 2008). We found that VVNP has an extremely high density of jackals, far more than the average density estimated (1–2 per km2) in the Velavadar National Park (Jhala et al., unpubl. cited in Jhala & Moehlman 2008) and more than that in certain parts of the Thar Desert of between 1.4–3 Jackals per km2 (Sharma 1998). This is probably due to the enclosed nature of the park and the very high potential prey density. The density of Chital is also very high, though lower than Guindy National Park (GNP) having an area of 2.7km2 (Raman et al. 1995) which showed a higher density of chital 185.4 per km2 (in 1991) and 239.2 per km2 (in 1992) and blackbuck of 19.6 per km2 (in 1991) and 15.3 per km2 (in 1992). In GNP, Chital and Blackbuck are maintained during summers by artificial feed, i.e., Paragrass Bracharia mutica and during other seasons they are sustained by natural forage. Similarly In VVNP, ungulates are fed Berseem Trifolium alexandrinum or Jowar Fodder Sorghum bicolor during summers. Density of ungulates at VVNP was also found to be more than the previous studies conducted in other protected areas of central India including Kanha Tiger Reserve (Karanth & Nichols 2000), Pench Tiger Reserve (Biswas & Sankar 2002), Satpura Tiger Reserve (Edgaonkar 2008), and Panna Tiger Reserve (Gopal et al. 2010). It must be noted that compared to VVNP, these are bigger areas with presence of tigers, leopards and dholes Cuon alpinus that prey on these ungulates, and so have limited utility for comparative purposes. With higher densities of most of the ungulates especially of chital there is a very high prey biomass in VVNP. The high prey densities are likely to affect the vegetation, and the high mesopredator density may affect other components of the ecosystem like the small mammals and ground birds community. We speculate that the combination of small enclosed area, absence of large carnivores and artificial feeding combine to increase the densities of ungulates to unsustainable levels in the absence of intensive management.

Sex ratio of chital was found to be similar with the other studies having a bias towards females. Breeding can occur at any time of year but there are site specific peak fawning seasons (Sankar & Acharya 2004 and references therein). In Kanha Tiger Reserve of central India, fawning was observed throughout the year with a peak during January to April (Schaller 1967). The present study was conducted during the probable peak fawning season reported for the chital in central India yet only a single sighting of a chital fawn was obtained in our sampling, therefore it was not possible to calculate female to fawn ratio.

Schaller (1967) estimated an annual fawn mortality of 48% in Kanha Tiger Reserve and Raman (1996) estimated a mean monthly mortality of 9.7% in Guindy National Park. Pariwakam (2006) found it to be 66% over a six-week study period in Bandipur using photographic capture-recapture method. The possible reasons for the absence of fawns in VVNP could be very low birthrate, death of fawns due to disease or nutritional stress or due to predation by jackals.

A focused study needs to be done to find out which of these hypotheses is true. VVNP is in urgent need to estimate the carrying capacity of jackals and ungulates and perhaps active management to reduce the population of both. While we have quantified the predation on ungulates by the jackals (Prerna 2013), the energy obtained from fruits of Ber Ziziphus mauritiana, Bael Aegle marmelos and Tendu Diospyros melanoxylon needs to be estimated, to be able to estimate carrying capacity for jackals. It is likely that they are far above carrying capacity, and are subsidized by garbage and meat leftovers from the carnivore enclosures. Finally we recommend that vegetation trends, especially seedling growth, be monitored to make sure that over browsing by ungulates does not cause eventual habitat degradation.

 

 

Reference

 

Biswas, S. & K. Sankar (2002). Prey abundance and food habit of tigers (Panthera tigris tigris) in Pench National Park, Madhya Pradesh, India. Journal of Zoology 256(3): 411–420; http://dx.doi.org/10.1017/S0952836902000456

Buckland, S.T., D.R. Anderson, K.P. Burnham & J.L. Laake (1993). Distance Sampling: Estimating Abundance of Biological Populations. Chapman and Hall, London, 446pp.

Buckland, S.T., D.R. Anderson, K.P. Burnham, J.L. Laake, D.L. Borchers & L. Thomas (2001). Introduction to Distance Sampling: Estimating Abundance of Biological Populations. Oxford University Press, Oxford; http://dx.doi.org/10.1002/9780470057339.vad033.pub2

Burnham K.P. & D.R. Anderson (2003). Model selection and multi model inference, a practical information-theoretic approach. New York: Springer.

Burnham, K.P., D.R. Anderson & J.L. Laake (1980). Estimation of density from line transects sampling of biological populations. Wildlife Monographs 72: 1-202.

Edgaonkar, A. (2008). Ecology of the Leopard Panthera pardus in Bori Widllife Sanctuary and Satpura National Park, India. PhD Thesis. University of Florida, 135pp.

Eisenberg, J.F. & J. Seidensticker (1976). Ungulates in southern Asia: a consideration of biomass estimates for selected habitats. Biological Conservation 10: 293–308.

Gopal, R., Q. Qureshi, M. Bharadwaj, R.K.J. Singh & Y.V. Jhala (2010). Evaluating the status of the endangered Tiger Panthera tigris and its prey in Panna Tiger Reserve, Madhya Pradesh, India. Oryx 44: 383–398; http://dx.doi.org/10.1017/S0030605310000529

Jhala, Y.V. & P.D. Moehlman (2008). Canis aureus. In: IUCN 2013. IUCN Red List of Threatened Species. Version 2013.2. <www.iucnredlist. org>. Downloaded on 20 January 2014.

Karanth, K.U. & M.E. Sunquist (1992). Population structure, density and biomass of large herbivores in the tropical forests of Nagarahole, India. Journal of Tropical Ecology 8: 21; http://dx.doi.org/10.1017/S0266467400006040

Karanth, K.U. & J.D. Nichols (2000). Ecological Status and Conservation of Tigers in India: Final Technical Report submitted to US Fish and Wildlife Service, Washington DC, and Wildlife Conservation Society, New York. Centre for Wildlife Studies, Bangalore, Bangalore.

Karanth, K.U., N.S. Kumar & J.D. Nichols (2002). Field surveys: estimating absolute densities of tigers using capture-recapture sampling, pp. 139­–152. In: Karanth, K.U. & J.D. Nichols (eds.). Monitoring Tigers and Their Prey: A Manual for Researchers, Managers and Conservationists in Tropical Asia. Centre for Wildlife Studies, Bangalore, India.

Leslie, Jr., D.M. (2011). Nilgai (Bos elaphu stragocamelus), pp. 591–592 in: Wilson, D.E. & R.A. Mittermeier (eds.). Handbook of the Mammals of the World - Volume 2 - Hoofed Mammals. Lynx Edicions, Barcelona.

Mungall, E.C. (1991). Establishment of lying out: an example for Blackbuck (Antilope cervicapra). Applied Animal Behaviour Science 29(1): 15­–37; http://dx.doi.org/10.1016/0168-1591(91)90236-Q

Pariwakam, M.P. (2006). Estimation of abundance and fawn survival in Chital (Axis axis) populations using photographic capture-recapture sampling. MSc Thesis. The Manipal Academy of Higher Education.

Patil, V.K. & Y.V. Jhala (2008). Movement Patterens and habitat use of Golden Jackal Canis aureus in Bhal regions of Gujarat. Journal of the Bombay Natural History Society 105(2): 209–211.

Prerna, S. (2013). Population Estimation, Feeding Ecology and Management Strategies for Golden Jackals (Canis aureus) in Van Vihar National Park Bhopal, Madhya Pradesh India. MPhil Dissertation. IIFM, Saurashtra University, Gujarat.

Raman, T.R.S. (1996). Factors influencing seasonal and monthly changes in the group size of Chital or Axis Deer in southern India. Journal of Biosciences 22: 203–218.

Raman, Τ.R.S., R.K.G. Menon & R. Sukumar (1995). Ecology and management of Chital and Blackbuck in Guindy National Park, Madras. Journal of the Bombay Natural History Society 93: 178–192

Sankar, K. & S.P. Goyal (eds.) (2004). Ungulates of India – Vol. 7, No. 1. ENVIS Bulletin: Wildlife and Protected Areas. Wildlife Institute of India, Deheradun, India, 448pp.

Sankar, K. & B. Acharya (2004). Spotted Deer or Chital (Axis axis Erxleben), pp. 171–180. In: Sankar, K. & S.P. Goyal (eds.) Ungulates of India. ENVIS Bulletin: Wildlife and Protected Areas, Vol. 7, No. 1. Wildlife Institute of India, Deheradun, India, 448pp.

Schaller, G.B. (1967). The Deer and the Tiger. University of Chicago Press. Chicago.

Sharma, I.K. (1998). Habitat preferences, feeding behaviour, adaptations and conservation of the Asiatic Jackal (Canis aureus) in the Indian Thar Desert. Tiger Paper 25: 11–12.

Skalski, J.R., K.E. Ryding & J.J. Millspaugh (2005). “Estimating Population Sex Ratios.” Wildlife Demography: Analysis of Sex, Age, and Count Data. Elsevier Academic, Burlington, MA, pp. 59–62.

Thomas, L., S.T. Buckland, E.A. Rexstad, J.L. Laake, S. Strindberg, S.L. Hedley, J.R.B. Bishop & T.A. Marques (2010). Distance software: design and analysis of distance sampling surveys for estimating population size. Journal of Applied Ecology 47: 5–14. Available at http://www.ruwpa.st-and.ac.uk/distance/

Van Vihar National Park (2011). http://www.madhya-pradesh-tourism.com/wildlife/national-parks/van-vihar-national-park.html accessed 27 January 2015

Wegge, P., M. Odden, C.P. Pokharel & T. Storaas (2009). Predator-prey relationships and responses of ungulates and their predators to the establishment of protected areas: A case study of tigers, leopards and their prey in Bardia National Park, Nepal. Biological Conservation 142(1): 189–202; http://dx.doi.org/10.1016/j.biocon.2008.10.020

Yoccuz, N.G., J.D. Nichols & T. Boulinier (2001). Monitoring of biological diversity in space and time. Trends Ecology and Evolution 16: 446–453; http://dx.doi.org/10.1016/S0169-5347(01)02205-4