WII Digital Repository
Established in 1982, Wildlife Institute of India (WII) is an internationally acclaimed Institution, which offers training program, academic courses and advisory in wildlife research and management. The Institute is actively engaged in research across the breadth of the country on biodiversity related issues.
The Institute's idyllic campus that has been carefully developed to create state of the art infrastructure encourages scholarly work.
This Repository is the digital asset management system which integrates the intellectual output in the form of research articles, Theses and other scanned documents. This Repository facilitates the share and exchange of intellectual output of the institute.
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Monitoring of reintroduced Gaur (Bos gaurus gaurus) in Bandhavgarh Tiger Reserve, Madhya Pradesh Phase II Final report
(Wildlife Institute of India, Dehradun, 2014) Nigam, Parag; Habib, B.; Nasir, M.; Navaneethan, B.; Sankar, K.
Bandhavgarh Tiger Reserve (BTR), located between the Vindhyas and the Eastern -- flanks of Satpura hill ranges in the Central India, supported a small population of gaur «40 individuals) till 1995. This population went locally extinct in 1998. Disruption of the migratory corridor between the forest of Bandhavgarh and Ghunghuti and Amarkantak was one of the factors attributed for the local extinction of gaur from Bandhavgarh. Even after the extinction of the gaur from the area, Bandhavgarh provided an excellent habitat for gaur. A proposal for reintroducing Gaur in BTR was initiated by the Madhya Pradesh Forest Department with support of the Wildlife Institute of India (WII) and & Beyond (previously known CC Africa). Gaur were reintroduced in Bandhavgarh form Kanha Tiger Reserve (KTR) in two phases with first batch of 19 individuals during January 2011 and second batch of 31 individuals during March 2012. Of the total of 50 individuals, 27 individuals were fitted with radio collars and monitored continuously. Monitoring of the reintroduced population was facilitated by the WII through a collaborative project titled "Monitoring of Reintroduced Gaur in Bandhavgarh - Phase I (2011-15)" The objectives of Phase I included studying the ranging pattern, habitat use and feeding habits of reintroduced gaur in Bandhavgarh Tiger Reserve and provided newer insight into lesser known aspects of gaur biology, behavior and ecology. The present study (Phase II) was carried out from April 2015 to March 2018, covering all the seasons in a year. The objective of the Phase II were to study the ranging pattern, habitat use, feeding habits, health considerations and competition of reintroduced gaur with other ungulates (Chital, Sambar and Nilgai) and camp elephants. A total of four different gaur herds were identified based on the presence of radio collared individuals and physically identifiable attributes of select individuals to study the ranging pattern of reintroduced gaur. During the study period a total of 1277locations were recorded from identified herds (n=4). During October and November
2017 six individuals (two males and four females) were fitted with collar (TELONICS VHF transmitters) and intensively monitored. The obtained radio-locations were plotted in ArcGIS 10.1. Minimum Convex Polygon (100% MCP) and Fixed Kernel Density (50% & 95% KFD) method were used to calculate home range of different gaur herds along different seasons (summer, monsoon and winter).
Assessment of wildlife values of the Ganga river from Bijnor to Ballia including Turtle Wildlife Sanctuary, Uttar Pradesh
(Wildlife Institute of India, Dehradun, 2018) WII
Freshwater ecosystems, especially riverine systems, give rise to unique habitat mosaics, which support distinctive biodiversity and provide substantial ecosystem services, creating a strong imperative for their protection and restoration. They are being impacted globally by divergent but frequently concurrent processes including water pollution, over-fishing, alteration of natural flow regime, invasive species, climate change and human-induced habitat loss. These dynamic systems are often poorly protected, and require conservation measures through systematic planning. Systematic Conservation Planning (SCP) is widely considered as the most influential paradigm to identify and bring areas under
protection through effective planning and spatial prioritization. The SCP requires an evaluation of sites for their biodiversity values, habitat heterogeneity, habitat dynamics, and existing human-induced habitat alteration factors. The Ganga River is the lifeline to more than 500 million people as it flows through five riparian states. It also harbours a unique assemblage of biodiversity due to its passage through three distinct biogeographic zones and unique habitat mosaics. Apart from nurturing umbrella species like the Gangetic river dolphin, otters, gharial and muggel; the Ganga River basin is recognized as a Global Turtle Priority Area and a Turtle Biodiversity Hotspot. With the aim of protecting and
consel1'if7g the diverse array of biota and their habitats, a 7 km stretch of the Ganga River between Rajghat (Malviya Bridge) to Ramnagar Fort in Varanasi District, Uttar Pradesh was declared as the Kachhua Vanyajiv Abhyaranya (Turtle Wildlife Sanctuary - TWS). Although declared a protected area, increase in riverbank agriculture, river traffic, water pollution through sewage and solid wastes are posing a threat to the biodiversity of TWS and the river-riparian habitats. High human disturbance in the form of cultural-religious activities are influencing the biological values of TWS. Considering the above, a rapid assessment study (March- July, 2018) was conducted in the TWS to evaluate its efficacy as a protected area; and to identify areas for effective biodiversity conservation. Stretch of the Ganga River between Bijnor to Ballia in Uttar Pradesh was evaluated following Systematic Conservation Planning approach. The objectives of this study were (1) Assessment of habitat structure of TWS and to detect changes over time, (2) Evaluation of efficacy of TWS and adjoining riverscape as a refugia for species of conservation concern; and (3) Prioritization of the Ganga River
stretches with mosaics of riverine habitats for conservation planning. A spatial assessment using remote sensing data for the period 1974 to 2016 revealed no significant changes in river channel and sand deposition in the TWS. However, -28% increase in the vegetation cover was observed which could be attributed to the protection accorded to the riparian areas by the Forest Department compared with an expansion of agricultural areas on the landward side.
Out of 13 species of turtle reported from Ganga River, only 5 species were encountered during the field sampling with the combined efforts of visual encounter surveys and in-stream sampling using gill nets and box traps within the TWS and upstream and downstream of the Sanctuary limit. Very low encounter rate of turtles in TWS indicates high human disturbance leading to habitat alterations within a very small Protected Area. Sites along the TWS in the left bank are seen to have the least suitable habitat for turtles with high anthropogenic disturbances such as cemented ghats, intense ferry and boat activity, pollution, and human presence along the river. The sand bar in the right bank of the TWS, though is an excellent habitat for turtles and breeding birds, is also under severe anthropogenic pressure. Out of64 species offish reported/rom the Middle Ganga stretch. a total 0/45 species belonging to 38 genera, 16 family and five orders were recorded during the sampling period. The fish catch was higher inside TWS as compared to upstream and downstream o/the sanctuary and this could be attributed to prohibition o/fishing within the Sanctuary limits.
A total of28 species of birds were observed, of which four species were of threatened categories as per the IUCN Red List. Nests of breeding birds were not observed from the TWS due to high biotic disturbance. A nesting site of the Indian Skimmer was identified at approximately 6 km upstream of the Sanctuary. Five pairs of Indian Skimmer and 14 pairs of Little tern, 4 pairs of River Lapwing a Near Threatened Species were observed/rom the vicinity. A rapid assessment of wildlife values was conducted in the entire stretch of the Ganga River falling within Uttar Pradesh and priority areas were identified through a scoring matrix. Kruskal's Multidimensional Scale analysis described the habitat parameters that influence species distribution. These parameters were sand mining, channel depth. fishing activities, presence of village/town and riverbed agriculture. Channel depth is the only factor which is positively influencing species distribution. Based on the scoring matrix, the highest biological value was attributed to a river stretch within the Hastinapur Wildlife Sanctuary, followed by the stretch from Brijghat to Narora, which is notified Ramsar Site. In addition to these, moderate biological value was assigned to the stretch downstream of Newada till Ballia. Habitat characteristic score (channel depth, meanders and river islands) was high in the downstream of Allahabad, till Ballia as this stretch persistently maintains high depth classes, meanders and river islands representing a complex mosaic of habitats. The anthropogenic influence scores was almost similar in the entire stretch from Bijnor barrage to Ballia as the river bed agriculture was prominent in the upper stretch. whereas fishing, sand mining, and human settlements were prevalent in the lower stretch of the river. The stretch between Hastinapur Wildlife Sanctuary and Narora already enjoys the protected area status. In spite of the protected status, TWS scored low due to its small size and high human disturbance. Based on the combined scores, a 140 Ian stretch downstream Newada in Allahabad district to Adalpur in Mirzapur district has been considered as the priority stretch for conservation. It is suggested that this area may be brought under the purview of Wild Life (Protection) Act, 1972 by declaring it as a wildlife sanctuary for the conservation of aquatic biodiversity of the Ganga River in Uttar Pradesh. Since the ecological characteristics and wildlife values vary along this 140 Ian stretch on account of anthropogenic pressures, harmonization for excluding some areas having high anthropogenic pressures on account of intense cultural-religious uses may be required, and to be done by the Uttar Pradesh Forest Department.
Assessment of aquatic resources of Askot landscape with reference to the human foot Prints - Phase 2
(Wildlife Institute of India, Dehradun, 2018) Rajpur, V.; Johnson, J.A.; Srivastava, Ajay
The aim of the report is to give an overview regarding the areas in Askot landscape which are in need for conservation in terms of aquatic habitat. This study is a part of the project Biodiversity Conservation and Rural Livelihood Improvement (BCRLIP) in Askot landscape. This report deals with the assessment of aquatic resources of Askot landscape with reference to human footprints available there. The focus is mainly on the assessment of fish density and people dependency on fishes along with the caused disturbances. People were-highly dependent on stream Rautis which is located at lower altitude of the landscape. Several human disturbances were identified in the landscape which is electrofishing, bleaching, water diversion, dynamiting, regulated water, sand mining, roads, stream crossings and waste discharge. Riparian quality was assessed in the streams of Askot landscape and found out Dhauli coming under the category F which shows low quality because of changes in the habitat. This provides the health and ecological status of all streams. On the basis of indicator criteria two indicator species was narrowed down as Schizothorax richardsonii and Naziritor chelynoides. So habitat requirement for both the species was studied and found out different requirement for substrate as boulders for Schizothorax and sand, silt for Naziritor. Further monitoring protocol is made for managing
the Askot landscape in terms of aquatic fauna.
Monitoring of Re-introduced tigers (Panthera tigris tigris) Sariska Tiger Reserve, Rajasthan - Phase II
(Wildlife Institute of India, Dehradun, 2018) Nigam, Parag; Habib, Bilal; Sankar, K.; Qureshi, Q.; Mandal, D.; Sengupta, D.; Malik, P.K.
The reintroduction being an intensive process required timely scientific inputs. The Wildlife Institute of India was bestowed with a responsibility of monitoring the reintroduced population with support of the National Tiger Conservation Authority since reintroduction. The animals gradually settled in Sariska, however did not breed for the first four years probably due to high stress levels and lack of inviolate space (Sankar et aI., 2013). High stress levels among the reintroduced tigers was observed due to the prevailing disturbance in Sariska (Bhattacharjee et aI., 2013). The first record of animal breeding was of ST2 in 2012. Village relocation process to create inviolate space for tiger breeding was also initiated simultaneously. A total of 565 Gujjar pastoralist families were relocated from six villages. The reintroduced population was continuously monitored over the years as part of the collaborative initiative between Rajasthan Forest Department, Wildlife Institute of India and National Tiger Conservation Authority. The report of the Phase I (2008-13) and the extended period (2013-15) were duly submitted. The Phase II of the project was initiated in 2015 to primarily study the response of reintroduced tigers and their prey to village relocation efforts and to explore the future population management. The objective of the Phase II were as follows: i. To study the home range and dispersal patterns of the re-introduced tigers and cubs with respect to relocated villages ii. To assess the habitat use by the re-introduced tigers and cubs with respect to relocated villages iii. To study the food habits of the re-introduced tigers iv. To estimate the population of the prey species v. To suggest management recommendations for effective conservation of tigers in the Tiger Reserve The findings of the influence of village relocation on tiger and prey population, and future management scope have been provided in the Annual Progress Report (2015 -16). Findings on the ranging pattern of tigers, factors influencing breeding of tigers, diet, temporal activity, and an update on the age-sex pattern of the tiger population for active population management in Sariska were presented in the annual report (2016 - 17). Here, we summarize our project findings to formulate conservation strategies for long term survival of Sariska's tiger population.
Ecological Reconnaissance and conservation assessment of avifauna in Sahyadri Tiger Reserve
(Wildlife Institute of India, Dehradun, 2018) Sati, Surabhi; Vishwakarma, Anurag; Singh, Ashutosh; Ben, Clement; Gopi, G.V.
The Western Ghats have been designated a World Heritage Site by UfiESCO because of their Outstanding Universal Values (OUVs), and they support several threatened plant and animal species. The birds of the Western Ghats have received a great deal of academic and conservation attention because of their endemism and the conservation threats they face. However, SUM MAR Y there is only limited empirical ecological information on the avifauna of Sahyadri Tiger Reserve (STR). Hence, a systematic study of the avifauna 'lias required to fill the existing knowledge gap and for long-term conservation. This study was initiated in collaboration with STR, Maharashtra and Wildlife Institute of India. The study was conducted between October 2015 and February 2018. The area was divided into four major habitat types, namely agriculture land, grassland, shrubland and forest. The aim of the study was to assess the conservation importance of STR with respect to the avifauna by, understanding the diversity, abundance and habitat utilization in relation to the anthropogenic pressure in different seasons (autumn, winter, summer) . Systematic field data were collected using the point count method to determine the distribution and abundance of species. The bird species, number of individuals (male, female and juvenile), habitat variables, vegetation characteristics and disturbance variables were recorded and quantified. The bird abundances and diversities of the different habitat types were compared and related to habitat features. Bird densities were estimated using the distance sampling method. The Shannon-Wiener diversity index (H') was used to determine the species diversity. The Spearman correlation coefficient was used to determine the relationship between the bird abundance and the habitat features within habitat types. A total of 218 species of bird belonging to 55 families were recorded during the study. Seven of these are threatened species. The highest number of recorded species (30) was in the family Accipitridae. Seven endemic birds of the Western Ghats were also recorded. We found that there is a significant relation between the bird density and diversity within a habitat type across the three sampling seasons. In autumn, the density ranged from 733. 7 5 ± 63.14 to 485 .91 ±46.01 per Kml. The highest density was recorded in agriculture land and the lowest in forest. In winter the density ranged from 1573.3 ± 90.27 to 519.83 ± 31.43, the highest being in agriculture land and the lowest in forest. In summer the density ranged from 900.59 ± 58.58 to 403.00 ± 39.97, the highest being in shrubland and the lowest in grassland. The study found higher bird densities in autumn and winter in areas with highly intense agriculture activities as human disturbed areas such as agriculture areas provide heterogeneous habitats that attract human-tolerant bird species. It was also observed that during summer, shrubland had the highest density of birds whereas the lowest density was in grassland and agriculture land. In summer the grasslands and agriculture lands were usually dry. Farmers burn field residues, and hence shrubland provided a more open habitat that supports shrubs that provide food and canopy cover for different bird species. Unlike the bird density, the diversity of the avifauna was high in forest in all three seasons. In autumn, the diversity index values ranged from 3.867 to 3.533, and in winter the diversity index values ranged from 3.895 to 3. 551.ln summer the diversity index values ranged from 3. 941 to 3. 258. The diversity was highest in forest and lowest in grassland in all three seasons. We observed unusual flowering of the Dhak, Butea monosperma (Lam.) Taub. (Fabaceae). The flowering time of the species is March-April though sometimes it also flowers in late February and the flowering lasts till early May. Notably, during our of the field surveys, we observed 10 fully grown individuals of B. monosperma in full bloom from mid November to late December in Chandoli National Park and Koyna Wildlife Sanctuary. Through continuous monitoring of these individuals in the tiger reserve t:le confirmed unusual phenological events that have not been reported earlier for this species. The change in phenological events of this species could be attributed to climatic change, irregular drought patterns or genetic factors, albeit further research is needed. The study reveals the relationship between avifauna species richness and habitat patterns and addresses the effects of anthropogenic pressure on avian species richness and its distribution patterns. Also, this study provides evidence that settlement are as can serve as refuges for birds. Therefore, conservation efforts should be directed towards making communities view human-occupied areas as habitats for birds and not as lost habitats. Hence scientific understanding backed by empirical evidence about the process and patterns of avifaunal assemblages in STR can be used to formulate a robust conservation plan for the birds of the reserve.