Gautam Talukdar's research while affiliated with Wildlife Institute of India and other places
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Publications (82)
Mangroves are globally recognized for their ecological, social, economic, and cultural significance. In recent years, data and assessment on carbon storage in tropical forests including mangroves have significantly improved. However, site-specific evidence as in the case of tropical islands and low-lying coastal zones where climate change effects a...
https://papers.ssrn.com/sol3/papers.cfm?abstract_id=4183211
India led the global tiger conservation initiatives and has doubled its wild tiger population to 2967 (2603–3346) since 2006. As the extant habitats are shrinking continuously, the persistence of these growing populations can only be ensured through focused landscape-scale conservation planning across all the existing tiger landscapes of Indian. We...
Nature-based solutions provide adaptation and mitigation benefits for climate change as well as contributing to other sustainable development goals (high confidence). Effective nature-based climate change mitigation stems from inclusive decision-making and adaptive management pathways that deliver climate-resilient systems serving multiple sustaina...
Climate change is altering the life cycles of many pathogenic organisms and changing the risk of transmission of vector- and water-borne infectious diseases to humans (high confidence). The rearrangement and emergence of some diseases are already observed in temperate zone and high-elevation areas and coastal areas (medium confidence to high confid...
The United Nations Educational, Scientific and Cultural Organization (UNESCO’s) World Heritage Convention, adopted in 1972, encourages to identify and conserve unique and invaluable sites of global significance. These sites are recognized by their outstanding universal value (OUV). This article adapts takes up a detailed qualitative analysis on the...
Climate change causes an unprecedented increase in glacial retreats. The melting ice exposes land for colonization and diversification of bacterial communities leading to soil development, changes in plant community composition, and ecosystem functioning. Although a few studies have focused on macro-level deglaciation impacts, little is known about...
Assessment of bacterial community distribution patterns along elevation gradients is invaluable in understanding the underlying mechanism involved in their diversity formation, sustenance, and response to environmental changes. However, no consensus has been reached as studies show contrasting patterns with different regulating factors due to habit...
Soil respiration (SR), a natural phenomenon, emits ten times more CO 2 from land than anthropogenic sources. It is predicted that climate warming would increase SR in most ecosystems and give rise to positive feedback. However, there are uncertainties associated with this prediction primarily due to variability in the relationship of SR with its tw...
Assessment of bacterial community distribution patterns along elevation gradients is invaluable in understanding the underlying mechanism involved in their diversity formation, sustenance, and response to environmental changes. However, no consensus has been reached as studies show contrasting patterns with different regulating factors due to habit...
Biodiversity informatics is a new and evolving field, requiring efforts to develop capacity and a curriculum for this field of science. The main objective was to summarise the level of activity and the efforts towards developing biodiversity informatics curricula, for work-based training and/or academic teaching at universities, taking place within...
Climate change affects life at global scales and across systems but is of special concern in areas that are disproportionately rich in biological diversity and uniqueness. Using a meta-analytical approach, we analysed >8000 risk projections of the projected impact of climate change on 273 areas of exceptional biodiversity, including terrestrial and...
Alpine ecosystems in the Himalaya, despite low primary productivity, store considerable amount of organic carbon. However, these ecosystems are highly vulnerable to climate warming which may stimulate ecosystem carbon efflux leading to carbon-loss and positive feedback. We used open-top chambers to understand warming responses of ecosystem respirat...
Recent declines in large herbivores have led to significant conservation efforts globally. However, the niche-specific megaherbivores residing outside protected areas face more imminent extinction threats. Swamp deer, the obligate grassland-dwelling endemic cervid is the most extinction-prone megaherbivore in the Indian subcontinent. Limited inform...
Pied cuckoo Clamator jacobinus (Boddart, 1783) is a migratory, brood-parasitic bird found in the African and Indian Subcontinent. Although the southern Indian population is presumably resident, the North Indian Population migrates from Africa to India during the summer. The arrival of the bird is linked to the onset of monsoon in India from scienti...
Soil heterotrophic respiration-driven CO 2 emissions, its impact on global warming and the mechanistic roles of soil bacterial communities in this process have been an area of active research. However, our knowledge regarding the effects of environmental changes on soil bacterial communities is limited. To this end, the climate-sensitive high-altit...
26 India led the global tiger conservation initiatives since last decade and has doubled its wild 27 tiger population to 2967 (2603-3346). The survival of these growing populations residing 28 inside the continuously shrinking habitats is a major concern, which can only be tackled 29 through focused landscape-scale conservation planning across five...
Recent declines in large herbivores have led to significant conservation efforts globally. However, the niche-specific megaherbivores residing outside protected areas face more imminent extinction threats. Swamp deer, the obligate grassland-dwelling endemic cervid is the most extinction-prone megaherbivore in the Indian subcontinent. Limited inform...
Snakes form an integral component of ecological
systems. Human population explosion and associated acceleration
of habitat destruction and degradation, has led to a rapid increase in
human-snake encounters. The study aims at understanding the
level of awareness, knowledge, and attitude of the people towards
human-snake negative interaction and...
This is a story of the dying woolen cottage industry of the Askot Landscape, Pithoragarh, Uttarakhand. A short note from the hills of rugged terrain, harsh climate, and subsistence economic conditions.
Camera trap database serves as objective records of an animal’s presence at a location, and information on activity patterns (from the date and time contained in the image), behaviour, and pelage characteristics that enable individual identification (Rovero et al., 2008). Remotely-triggered cameras are used for camera trapping that automatically ta...
Protected areas are considered as one of the crucial tools for conserving the biodiversity of this planet. The Western Ghats region is one of the four biodiversity hotspots that geographically covers the Western Ghats region of India and Sri Lanka. A total of 34 biodiversity hotspots around the globe, comprising 2.3% of land surface worldwide. The...
India has 10 biogeographic zones(Rodgers and Panwar, 1988) and four categories of Protected areas which form the Protected Area Network. Analysis helps in the understanding of how much biodiversity is protected (Brooks et al., 2004), where new Protected Areas could be formed (Brooks et al., 2004), where and how the existing reserve systems can be e...
Biodiversity informatics has been characterized as a rapidly growing interdisciplinary field, which aims to bring together the areas of biodiversity and informatics. A study was conducted looking at the current level of activity within the GBIF Participant countries and its associated network in relation to work-based training and/or academic teach...
Ganges Softshell turtle (Nilssonia gangetica), a species listed as Vulnerable (IUCN Red List, A1d+2d, Ver 2.3), is
generally associated with the major river systems of northern India. However, anecdotal records indicate this species has strong
associations with community and temple ponds. Connectivity between rivers and these ponds play an import...
In India, biodiversity data and information are gaining significance for sustainable development and preparing National Biodiversity Strategies and Action Plans (NBSAPs). Civil societies and individuals are seeking open access to data and information generated with public funds, whereas sensitivity requirements often demand restrictions on the avai...
Faecal samples have become an important non-invasive source of information in wildlife biology and ecological research. Despite regular use of faeces, there is no universal protocol available for faeces collection and storage to answer various questions in wildlife biology. In this study we collected 1408 faeces from ten different species using a d...
Faecal samples have become an important non-invasive source of information in wildlife biology and ecological research. Despite regular use of faeces, there is no universal protocol available for faeces collection and storage to answer various questions in wildlife biology. In this study we collected 1408 faeces from ten different species using a d...
Comparative studies of closely related species with similar ecological requirements are essential to understand the behavioral adaptations that allow them to live in sympatry. We investigated the mechanisms that enable the coexistence of two congeneric macaques—the Assamese macaque (Macaca assamensis) and rhesus macaque (M. mulatta)—in the Western...
Meta-population dynamics of tiger in the Terai-Arc landscape, India
Mating behaviour of Python molurus molurus (Linnaeus,
1758) in Moyar River Valley, Tamil Nadu, India
Faecal samples have become important non-invasive source of information in wildlife biology and ecological research. Despite regular use of faeces, there is no universal protocol available for faeces collection and storage to answer various questions in wildlife biology. We collected 1408 faeces from ten different species using a dry sampling appro...
Most of the protected areas (PAs) in India have a hard boundary; very rarely having a transition zone to minimise the negative human wildlife interface. With increasing anthropogenic pressures, areas surrounding PAs are becoming integral for conservation. Government of India introduced a concept of Eco-sensitive Zones (ESZ) around PAs to minimise a...
Sambar is the most widespread deer in Southeastern Asia
and is listed as Vulnerable in the IUCN Red List. In this communication,
we report the results of an extensive literature review and camera
trapping to present the historic and current distribution of Sambar in
Aravalli Mountain region. The records state that the species is nearly
exterminated...
Sambar is the most widespread deer in Southeastern Asia and is listed as Vulnerable in the IUCN Red List. In this communication, we report the results of an extensive literature review and camera trapping to present the historic and current distribution of Sambar in Aravalli Mountain region. The records state that the species is nearly exterminated...
This paper evaluates Digital Accessible Knowledge on occurrence of Indian bird species. More than 2 million primary occurrence records from across India were obtained from the Global Biodiversity Information Facility and eBird. These were processed into maps of inventory completeness across the country both prior to 1980 and after 2000, in an attem...
Understanding the functionality of identified tiger dispersal corridors in the Terai-Arc landscape, India
Large scale forest degradation and mortality associated with dwarf mistletoes infestation has been reported across the world. During recent surveys in the Gangotri National Park, Western Himalaya, we recorded infestation on Blue pine, Pinus wallichiana over large area by Himalayan dwarf mistletoe, Arceuthobium minutissimum. The infestation was neve...
Background The Indian Himalayan Region (IHR) is considered as one of the most sensitive region for climate change and lichens plays an important role as indicators. Climate strongly influences lichen community composition. A few lichens tolerate large fluctuations in climate but most require specific regimes. Even a 1°C shift in mean annual tem...
The Jungle Babbler Turdoides striata is an agriculturally important, non-endemic bird found throughout India, however, very little information is available regarding this less known/less studied species’ current distribution and population size. The IUCN Red List of Threatened Species has evaluated the species as ‘Least Concern’, however, increasin...
Background •The Indian Himalayan Region (IHR) is considered as one of the most sensitive region for climate change and lichens plays an important role as indicators. •Climate strongly influences lichen community composition. A few lichens tolerate large fluctuations in climate but most require specific regimes. Even a 1°C shift in mean annual tempe...
Understanding the functionality of identified tiger dispersal corridors in the Terai-Arc landscape, India
The oldest mountain range on earth, Aravallis hills of India, are the prominent landforms
shaping the west-Indian climate and biodiversity. Aravallis with its lush green forests used to act as green barrier and acted as an effective shield against desertification. It checked the spread of the Indian Desert (Thar) towards eastern Rajasthan, Indo Gan...
Increasing emission rate of carbon dioxide (CO2) and other greenhouse gases is the major driver of global temperature increase. Soil microbial respiration is accelerating the release of CO2 in the environment, but the mechanistic understanding of this process is still at its nascent stage. In this note, we discuss the importance of understanding th...
Indigenous fishing techniques for catching the mudskipper in Bhavnagar and Bharuch districts of Gujarat coast were investigated during 2014-15. The complexities of its muddy habitat and behaviour characteristics make it difficult to catch the mudskipper. Documentation on the fishing methods for catching the mudskipper is not available. This paper d...
The latest tiger census conducted in India during the year 2014 shows that it harbours 57% of the global tiger population in 7% of their historic global range. At the same time, India has 1.25 billion people growing at a rate of 1.7% per year. Protected tiger habitats in India are geographically isolated and collectively holds this tiger population...
A total of six individuals of S.chinensis were observed near the Jakhau creek, which is the western part of Gulf of Kachchh. The GPS location of the sighting is 23°14’28.5” N and 68°35’54.0" E. The dolphins were spotted in the mid-high tide time on 03 December 2014 at 9.53 hrs (IST). These dolphins were found less than 10 m away from the shore at a...
India houses seventy percent of the global population of tiger in seven percent of their historic range. These tigers are present in tiger reserves that are mostly geographically aloof from each other. They are separated by landscapes of intensive human occupation including expanding agriculture and urbanization. This problem of isolation is furthe...
Habitat loss and the destruction of habitat connectivity can lead to species extinction by isolation of population. Identifying important habitat corridors to enhance habitat connectivity is imperative for species conservation by preserving dispersal pattern to maintain genetic diversity. Circuit theory is a novel tool to model habitat connectivity...
Habitat loss and the destruction of habitat connectivity can lead to species extinction by isolation of population. Identifying important habitat corridors to enhance habitat connectivity is imperative for species conservation by preserving dispersal pattern to maintain genetic diversity. Circuit theory is a novel tool to model habitat connectivity...
A seamless vegetation type map of India (scale 1: 50,000) prepared using medium-resolution IRS LISS-III images is presented. The map was created using an on-screen visual interpretation technique and has an accuracy of 90%, as assessed using 15,565 ground control points. India has hitherto been using potential vegetation/forest type map prepared by...
India has experienced significant Land-Use and Land-Cover Change (LULCC) over the past few decades. In this context, careful observation and mapping of LULCC using satellite data of high to medium spatial resolution is crucial for understanding the long-term usage patterns of natural resources and facilitating sustainable management to plan, monito...
The Lower Gangetic Basin is one of the most highly populated areas of India, covering an area of 286,899 sq km with a population density of 720 persons per sq km. 64% of the area is covered under agriculture which is supported by the highly fertile alluvial soil. Landuse and landcover (LULC) changes due to an ever increasing human population, natur...
The Lower Gangetic Basin is one of the most highly populated areas of India, covering an area of 286,899 sq km with a population density of 720 persons per sq km. 64% of the area is covered under agriculture which is supported by the highly fertile alluvial soil. Landuse and landcover (LULC) changes due to an ever increasing human population, natur...
The Okhla Bird Sanctuary (OBS), a man-modified floodplain wetland having high human impact, is located in an urbanized landscape. Its location in the Central Asian Flyway of migratory birds makes it an ideal transit and wintering ground for birds. This paper describes the vegetation composition and significance of the Sanctuary as a bird habitat. A...
Yamuna River has been subjected to severe anthropogenic pressures such as water abstraction, discharge of wastewater, development activities on river floodplains, deforestation in the river basin resulting in reduced flow, loss of habitat, deterioration of water quality and loss of biological diversity. We studied hydrological characteristics such...
