Sandeep Sharma

Sandeep Sharma
Smithsonian Institution · Smithsonian Conservation Biology Institute

PhD

About

44
Publications
35,779
Reads
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710
Citations
Additional affiliations
December 2014 - present
Smithsonian Institution
Position
  • International Research Specialist
March 2013 - December 2014
Clemson University
Position
  • Research Associate
January 2006 - May 2012
George Mason University

Publications

Publications (44)
Article
Full-text available
Context Connectivity between habitat patches is a recognized conservation action to conserve biodiversity in a rapidly changing world. Resistance surfaces, a spatial representation of cost of movement across the landscape, are often the foundation for connectivity analyses but working with them can be daunting due to the diversity and complexity of...
Article
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As ecological data and associated analyses become more widely available, synthesizing results for effective communication with stakeholders is essential. In the case of wildlife corridors, managers in human-dominated landscapes need to identify both the locations of corridors and multiple stakeholders for effective oversight. We synthesized 5 indep...
Article
Full-text available
Efficient and effective monitoring methods are required to assess population status and gauge efficacy of conservation actions for threatened species. Here we review the spectrum of field methods useful for monitoring distribution, occupancy, abundance, and population trend for the five species of Asian terrestrial bears. Methods reviewed include e...
Article
Full-text available
Camouflage is a fitness-relevant trait that supports survival and fosters evolutionary adaptation by which animals match their body pattern to a background setting. Lichens are among the most common of these backgrounds that several animal species use for camouflage. Lichens are omnipresent and grow in wide arrays of colorations and compositions. T...
Article
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Abstract Rapid impact assessment of cyclones on coastal ecosystems is critical for timely rescue and rehabilitation operations in highly human‐dominated landscapes. Such assessments should also include damage assessments of vegetation for restoration planning in impacted natural landscapes. Our objective is to develop a remote sensing‐based approac...
Article
Full-text available
Populations of bears in Asia are vulnerable to extinction and effective monitoring is critical to measure and direct conservation efforts. Population abundance (local density) or growth (λ) are the most sensitive metrics to change. We discuss and recommend implementing spatially explicit capture-recapture (SCR), the current gold standard for densit...
Article
Maintaining or restoring connectivity among wildlife populations is a primary strategy to overcome the negative impacts of habitat fragmentation. Yet, current connectivity planning efforts typically assess landscape resistance, the ability of organisms to cross various biophysical elements in a landscape, while overlooking the various ways in which...
Article
Full-text available
Article impact statement: Combining native and non‐native species to evaluate biodiversity is overly simplistic and may undermine the conservation of ecosystems.
Article
Zoonosis-based epidemics are inevitable unless we revisit our relationship with the natural world, protect habitats and regulate wildlife trade, including live animals and non-sustenance products. To prevent future zoonoses, governments must establish effective legislation addressing wildlife trade, protection of habitats and reduction of the wildl...
Chapter
Bears have fascinated people since ancient times. The relationship between bears and humans dates back thousands of years, during which time we have also competed with bears for shelter and food. In modern times, bears have come under pressure through encroachment on their habitats, climate change, and illegal trade in their body parts, including t...
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Background Maintaining and restoring connectivity between source populations is essential for the long term viability of wide-ranging species, many of which occur in landscapes that are under pressure to meet increasing infrastructure needs. Identifying barriers in corridors can help inform conservation and infrastructure development agencies so th...
Article
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Large connected landscapes are paramount to maintain top predator populations. Across their range, tiger (Panthera tigris) populations occur in small fragmented patches of habitat, often isolated by large distances in human-dominated landscapes. We assessed connectivity between 16 protected areas (PAs) in central India, a global priority landscape...
Article
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Gene flow and Evolutionary History of Tigers in Central India
Article
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Sloth bears (Melursus ursinus) are endemic to the Indian subcontinent. As a result of continued habitat loss and degradation over the past century, sloth bear populations have been in steady decline and now exist only in isolated or fragmented habitat across the entire range. We investigated the genetic connectivity of the sloth bear meta-populatio...
Article
Full-text available
The sloth bear (Melursus ursinus) is a threatened species endemic to the Indian subcontinent. To date, no reliable method has been developed for identifying individuals or monitoring their populations. Here we describe a non-invasive genetic monitoring technique for individual identification of sloth bears. After testing 18 microsatellites develope...
Article
Full-text available
The jungle cat (Felis chaus), a small-sized felid, is distributed across Southeast and South Asia to Egypt in Africa. In India, it is one of the most common small cat species but no reliable methods are available to monitor its population status. We describe a non-invasive genetic monitoring technique using fecal samples for individual identificati...
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Full-text available
Gene flow is a critical ecological process that must be maintained in order to counteract the detrimental effects of genetic drift in subdivided populations, with conservation benefits ranging from promoting the persistence of small populations to spreading adaptive traits in changing environments. We evaluated historical and contemporary gene flow...
Article
Full-text available
Understanding the patterns of gene flow of an endangered species metapopulation occupying a fragmented habitat is crucial for landscape-level conservation planning and devising effective conservation strategies. Tigers (Panthera tigris) are globally endangered and their populations are highly fragmented and exist in a few isolated metapopulations a...
Article
Full-text available
We investigated the spatial genetic structure of the tiger meta-population in the Satpura-Maikal landscape of central India using population- and individual-based genetic clustering methods on multilocus genotypic data from 273 individuals. The Satpura-Maikal landscape is classified as a global-priority Tiger Conservation Landscape (TCL) due to its...
Article
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We describe a highly polymorphic microsatellite panel for identifying individual leopards using DNA from scat. After successfully screening 16 published microsatellites, we optimized a panel of 7 microsatellites that yields a Probability of Identity between siblings value of 5.24E-04. We used this panel to identify 217 individuals from 287 leopard...
Article
Full-text available
Aim Habitat loss and fragmentation can influence the genetic structure of biological populations. Large terrestrial predators can often avoid genetic subdivision due to fragmentation because they have high rates of dispersal-mediated gene flow. Leopards (Panthera pardus) are found in a variety of habitats and are the most widely distributed of the...
Article
Noninvasive survey methods based on analyzing DNA extracted from feces can be useful for carnivores that are difficult to study by other methods. Changes in fecal deposition patterns associated with reproduction in kit foxes (Vulpes macrotis) might affect results of such surveys. We used a trained dog to collect fresh scats on 2-km transects in the...
Article
Full-text available
An objective multivariate technique is described for identification of individual tigers Panthera tigris from their pugmarks. Tracings and photographs of hind pugmarks were obtained from 23 pugmark-sets of 19 individually known tigers (17 wild and two captive tigers). These 23 pugmark-sets were then divided into two groups, one of 15 pugmark-sets f...
Research
Full-text available
Reptiles of Ladakh Himalaya
Technical Report
Full-text available
During the May 2005 tiger population estimation exercise in Ranthambhore National Park, extensive data was collected and analysed using the Digital Pugmark technique, the software PUGMARK 1.0. It was found that there were 26 distinct individual tigers in Ranthambhore; six adult males, fifteen females and five cubs.
Research
Full-text available
Tibetan antelope (Pantholops hodgsonii) or Chiru in India
Research
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Eurasian lynx in Ladakh Himalaya.
Article
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We evaluated gender discrimination of tigers (Panthera tigris) using the shape of their pugmarks. Discriminant Function Analysis (DFA) and logistic regression were used to discriminate gender of 13 known tigers from nine easy-to-obtain pugmark measurements. Both multivariate techniques were quite accurate in discriminating genders; the most accurat...

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Projects

Projects (2)
Project
To create a discussion forum and a database of scientific papers on biodiversity conservation, improvement of livelihoods and sustainable development, focusing on the landscapes of Central India.