Technical Reports/Books/Manuals

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Start date: 2023Subject: search.filters.subject.Habitat

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    MEE-ER management effectiveness Evaluation of Elephant Reserves in India : guidelines, criteria and indicators for evaluation of elephant reserves through Management Effectiveness Process
    (Wildlife Institute of India, Dehradun, 2023) PE-MoEFCC-WII
    The stated objectives of the Project Elephant include: I. To protect elephants, their habitats, and corridors II. To address issues of man-elephant conflict III. To improve the welfare of captive elephants Under the Project Elephant scheme, the State Governments of elephant range were to identify and propose conservation areas that can be declared as Elephant Reserves (ERs). In order to bring uniformity in management practices across the country; to provide technical and financial support to elephant range states and address issues facing human-elephant conflict, Elephant Reserves (ERs) have been created across the four elephant- holding regions.
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    Unveiling Torputitora presence in Sikkim streams through eDNA
    (Wildlife Institute of India, Dehradun, 2025) Mane, S.S.; Pant, B.; Kolipakam, Vishnupriya
    Environmental DNA (eDNA) metabarcoding was used to detect the presence of Tor putitora (Golden mahseer) in selected streams of Sikkim. Water samples were collected from six sites based on habitat characteristics conducive to the species survival. The collection of samples was followed by filtration of water samples, isolation of the DNA, PCR and sequencing targeting the COI region were conducted under aseptic conditions. The results confirmed Tor putitora presence at two locations (BR-06 and BR-08) with high certainty (>99%) aligning with previous studies on tis distribution in Sikkim. These results indicate that these streams serve as habitats for Tor putitora. These findings highlight the potential of these streams to support mahseer populations, reinforcing the need for conservation efforts to protect these critical habitats from ecological threats like ecological pressures, including hydropower and linear infrastructure development. This study adds to the expending evidence concerning mahseer distribution in Sikkim and highlights the critical need for conservation initiatives aimed at safeguarding its essential habitats by incorporating appropriate mitigation measures. Continued research and long term monitoring are imperative to evaluate population dynamics and ensure the sustainable management of Tor putitora in the region.
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    PAN-India assessment and monitoring of endangered species covered under the Integrated Development of Wildlife Habitats Program )IDWH)- Nilgiri Tahr
    (Wildlife Institute of India, Dehradun, 2025) WII-MoEFCC
    The Nilgiri tahr (Nilgiritragus hylocrius) is an endangered mountain ungulates endemic to the Southern Western ghats of India, predominantly inhabiting montane grasslands. Historically the species occupied a wide range along the Western ghats. However its current distribution has contracted to less than one tenth of its former extent, primarily due to habitat loss, anthropogenic pressure and poaching. Despite its threatened status, comprehensive data on population size, population dynamics and distribution remain patchy and limited. To address this knowledge gap we Standardize double observer method alongside the Bounded count method and also piloted camera trapped based distance sampling in selected sites.
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    Recovery of dugongs and their habitats in India: an integrated participatory approach : Annual Progress report VI (2021-23)
    (Wildlife Institute of India, Dehradun, 2023) Johnson, J.A.; Prabakaran, N.; Sivakumar, K.; Chakraborty, O.; Gole, S.; Pathan, S.; Ghanekar, C.; Rajpurkar, S.; Hatkar, P.; Seal, S.; Patel, S.; Iyer, S.; Prajapati, S.; Bose, S.; Tripura, V,; Christian, G.; Joshi, R.; Aggarwal, A.; Dhiman, G.; Negi, S.
    National CAMPA Authority under the aegis of Endangered Species Recovery Program, Dugong Recovery Program was initiated with major objectives to a) Assess dugong population status through advanced census techniques and determine its abundance and distribution, identify critical habitats, classify threats and develop a site-specific monitoring plan to reduce poaching and incidental entanglements, b) Characterize the critical dugong habitats, reduce direct and indirect threats, c) Raise awareness on the species and encourage the participation of the local communities; and d) Enhance the capacity of the State Forest Department staff and develop/implement smart patrolling tools to improve protection enforcement; train forest staff and local communities in underwater surveys for long-term habitat monitoring. In the last five years of its implementation, an integrated participatory approach was adopted to ensure recovery of dugong populations and conservation of seagrass habitat in India.
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    Cumulative impact study of a 10 km radius landscape area around Ranthambhore tiger reserve towards identifying critical zones for wildlife and ensuring environment-friendly mining practices
    (Wildlife Institute of India, 2023) Jha, R.R.S.,; Zangmo, S.; Das, P.; Gopi, G.V.
    The Standing Committee of the National Board for Wild Life (SC-NBWL) had been receiving several mining proposals for consideration from around Ranthambhore Tiger Reserve (RTR), and often in a piecemeal manner. This had made it difficult for SC-NBWL to assess these projects’ overall impacts on wildlife and forest connectivity in RTR’s surrounding landscape. On the receipt of two mining proposals, a decision was taken in the SC-NBWL’s 70th meeting held in October 2022 to defer all mining proposals around RTR until a ‘Cumulative Impact Study Report’ was prepared by the Wildlife Institute of India, Dehradun (WII) towards protecting wildlife habitats and corridors in RTR’s vicinity. Accordingly, an area of c. 3,798 sq.km within Rajasthan in a 10 km-radius width around RTR was delineated as the “Cumulative Impact Study Area” (or CISA) encompassing parts of the administrative districts of Karauli, Sawai Madhopur, Tonk, Bundi and Kota. The CISA also encompasses parts of RTR Division-I, RTR Division-II, Ramgarh-Vishdhari Tiger Reserve (RVTR), National Chambal Sanctuary Project, and Social Forestry/ Territorial Divisions of Karauli, Sawai Madhopur, Tonk, Bundi and Kota. RTR (core & buffer) itself though is not part of the CISA as the assignment concerns areas in its vicinity. The CISA is described in terms of its forests, wildlife (including surrounding Protected Areas and connectivity between them), land use/ land cover, geology, geomorphology, climate etc. Impacts of mining activities on ecosystems, biodiversity and the environment, in general, are also described. Utilising available data from ongoing or completed research projects within WII and other data as available from published literature and government repositories, an area of c. 2136 sq.km within the CISA (56.26%) has been determined as “critical zone” for wildlife, especially concerning their persistence in the larger Ranthambhore landscape. These are areas with the occupancy and/ or (modelled) potentially suitable habitat of globally threatened and/ or locally rare Schedule-I mammalian species, as per the amended (until 2022) Wild Life Protection Act, 1972, such as tiger Panthera tigris (EN), leopard Panthera pardus (VU), caracal Caracal caracal (LC, but India’s most threatened wild cat species), Indian grey wolf Canis lupus pallipes (LC, but genetically distinct subspecies and locally rare), dhole (or Asiatic wild dog) Cuon alpinus (EN), Indian pangolin Manis crassicaudata (EN) and sloth bear Melursus ursinus (VU), including their identified movement corridors. The delineated critical zone also includes areas within PAs around RTR and areas satisfying the current legal definition of an Eco-Sensitive Zone (ESZ), within which all commercial mining is prohibited, as per the Ministry of Environment, Forest and Climate Change’s (MoEF&CC) February 2011 guidelines on the matter. Within the CISA, a “non-critical zone” from the perspective of inhabiting wildlife of c. 1,661 sq.km (43.74%) is identified where mining activities may be appropriately appraised, subject to site-specific critical and cumulative impact assessments of the received proposals. If received/ pending proposals are positively appraised, the lessees/ user agencies must strictly adhere to all relevant extant laws, rules and guidelines issued by the Union and State governments from time to time, along with following all relevant orders passed by Hon’ble higher courts of judicature and statutory clearance conditions issued by national and state-level authorities. Pillar locations’ coordinates (intermediate/ all corners) and other associated details of a total 145 mining leases within the CISA were informed through the concerned district offices of the Department of Mining and Geology (DMG), Govt. of Rajasthan. Of these, majority (100) mining leases are located within Karauli district, while there are none in the Tonk district. It is, however, unclear if the data provided through DMG offices is comprehensive or complete. The statuses of these leases – whether operational/ lease expired/ applied for renewal etc. – is also either unclear or not known. Given these facts, we found that a total of sixty (60) mining leases – twenty-seven (27), six (06), three (03) and twenty-four (24) in Karauli, Sawai Madhopur, Bundi and Kota districts, respectively – are located within the “critical zone” for wildlife delineated in this assessment. Of these 60 leases, thirteen (13) are located either partly or wholly within the legally valid ESZs (as on date of submission of this report) where commercial mining and associated industries is listed as a prohibited activity, while as many as twenty-two (22) mining leases are located within identified wildlife corridors (all in the Ranthambhore-Ramgarh Vishdhari Mukundara corridor). Three (03) mining leases – two in Bundi district (ML nos. 389/1998, 333/2002) and one in Kota district (23/2003) – are, in fact, located within both ESZs and wildlife corridors. We observe an enormous scope to regulate and streamline mining activities around RTR towards a more sustainable framework accounting for the needs of both people/ industries and wildlife. While sufficient information on flora and fauna exists (and is being generated) within RTR, a general lack of scientific investigations coupled with insufficient monitoring of wildlife in RTR’s immediate vicinity limits this assessment exercise. This is especially concerning since RTR acts as a significant source population of threatened wildlife, including tiger, in the Central India-Eastern Ghats (CIEG) landscape, enabling their long-term persistence in and gradual range expansion into other parts of Rajasthan and the larger CIEG. Hence, we recommend carrying out comprehensive wildlife diversity, distribution, movements, species-habitat relationships, human-wildlife interactions and other such studies towards generating relevant information on these aspects in RTR’s vicinity. If several mining and/ or allied industries (such as mineral grinding/ processing plants) are proposed/ exist closely situated to each other, we also recommend conducting cumulative impact (of mining and allied industrial units) assessment studies funded through the State government ascertaining impacts of these activities on biodiversity, ecosystems, environment, and on the lives and livelihoods of human communities living nearby by reputed research institutions having such expertise, using modern research and analytical tools. Such studies may be commissioned immediately for the already existing cluster of proposals in the CISA where mining and/ or allied activities have been taking place since the past few decades (Karauli, Bundi and Kota clusters). The formation and effective functioning of a participatory monitoring mechanism is necessary to ensure that the short- and long-term requirements and concerns of the most important stakeholders – wild life and local human communities – are not overlooked. We also provide relevant shape and Keyhole Markup Language (KML) files along with full resolution images and maps generated from this project as a “Decision Support System” to the NBWL towards more informed proposal appraisals in the future. Informed decision making with respect to resource extractive projects backed with robust and regular on ground data/ monitoring of statutory and relevant laws, rules, guidelines, policies and compliance conditions will greatly facilitate the persistence of threatened species, and ensure the long-term survival and persistence of threatened wildlife in the biodiversity rich and crucial larger Ranthambhore landscape.
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    Seagrass and seaweed habitats in Gulf of Mannar and South Palk Bay region : Final Technical report
    (Wildlife Institute of India, Dehradun, 2023) Seal, Sohom; Iyer, Sweta; Ghanekar, Chinmaya; Prabakaran, Nehru; Johnson, J.A.
    Seagrass beds are also heavily affected by frequent storms and prolonged rain, affecting the water transparency, and cutting the light penetration (Syukur et al., 2017). As a results, seagrass habitats quality and extend are degreasing in greater extent. In order to take a stock on the extend of seagrass and seaweed cover in the Gulf of Mannar and Southern Palk Bay region, the present investigation was under taken with the following objectives. Objectives of the study i. To map the current distribution and area coverage of seagrass and seaweed in Gulf of Mannar and Southern Palk Bay region. ii. Identify and demarcate the degraded seagrass habitats for adopting suitable management interventions.
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    Spatial mapping of important marine habitats of Malvan Coast for re-organization of boundary of the Malvan Marine Sanctuary
    (Wildlife Institute of India, Dehradun, 2023) Shinde, N.; Bayana, S.; Sarkar, D.; Pande, A.; Sivakumar, K.; Talukdar, Gautam
    Malvan Marine Sanctuary is a Marine Protected Area located in the Sindhudurg district of Maharashtra state. Known for its rich biodiversity, it is grappling with increasing anthropogenic pressure necessitating a comprehensive study to assess its habitats and threats. Management Effectiveness Evaluation (MEE) of 2017-2018 team had suggested for boundary reorganization to exclude areas of human intervention and to include important habitats and areas with high biodiversity for the better management of biodiversity off the coast of Malvan. The project has undertaken because high tourism zone are areas with high anthropogenic pressure within the core zone of the sanctuary. Coral reefs and its associated fish fauna were surveyed at nine sampling sites. The total hard coral cover was observed to be 28% while the seagrass cover was observed to be 3% in 21 sampling sites. 19 genera of corals were identified. Favites sp.was observed to be the most abundant (19.18%). Within the sanctuary, Seagrass patches were identified at five sampling sites namely King’s Garden 1, King’s Garden 2, King’s Garden 3, Dharan and Donor site. 122 species of fish belonging to 38 families were observed during underwater surveys. Fish-market surveys were conducted to study the species composition and size-class of fish species caught around the sanctuary. A total of 44 different fish species were observed during market surveys. Beach litter surveys were conducted to assess the anthropogenic stress along the Malvan coastline. Debris in the form of polythene was the major contributing litter type at all three sections of the beach. The rocky outcrops along the coast were observed to be roosting sites for avifaunal species namely, White-bellied Sea Eagles, Pigeons, Swiftlets, etc. Spatial prioritization of the marine habitats revealed potential PA’s include Kawda, 7 rocks, Lighthouse area, covering an area of 29.07 sq.km; conservation priority areas comprising Chiwla, and Sargassm covering a total area of 19.21 sq. km and King’s garden (3.534 sq km) as sensitive area. Strategies to conserve these areas for long term conservation. should be planned. Spatial mapping of important marine habitats of Malvan coast for re-organization of boundary of the Malvan Marine Sanctuary