Vijay Ramesh

ORCID: 0000-0002-0738-8808
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About
Contact & Profiles
Research Areas
  • Species Distribution and Climate Change
  • Wildlife Ecology and Conservation
  • Animal Vocal Communication and Behavior
  • Marine animal studies overview
  • Ecology and Vegetation Dynamics Studies
  • Music and Audio Processing
  • Amphibian and Reptile Biology
  • Avian ecology and behavior
  • Conservation, Biodiversity, and Resource Management
  • Animal Behavior and Reproduction
  • Identification and Quantification in Food
  • Mining and Resource Management
  • Animal and Plant Science Education
  • Data Analysis with R
  • Lepidoptera: Biology and Taxonomy
  • Environmental Conservation and Management
  • Computational and Text Analysis Methods
  • Bat Biology and Ecology Studies
  • Wildlife Conservation and Criminology Analyses
  • Genetic diversity and population structure
  • Economic and Environmental Valuation

Center for Environmental Health
2022-2025

Cornell University
2022-2025

Columbia University
2017-2023

Cornell Lab of Ornithology
2023

Indian Institute of Science Bangalore
2020

Cary Institute of Ecosystem Studies
2017

Abstract Although eco-acoustic monitoring has the potential to deliver biodiversity insight on vast scales, existing analytical approaches behave unpredictably across studies. We collated 8,023 audio recordings with paired manual avifaunal point counts investigate whether soundscapes could be used monitor diverse ecosystems. found that neither univariate indices nor machine learning models were predictive of species richness datasets but soundscape change was consistently indicative...

10.1038/s41559-023-02148-z article EN cc-by Nature Ecology & Evolution 2023-07-31

The frog family Ranixalidae is endemic to the Western Ghats of Peninsular India and contains two genera, Indirana Walkerana. three known species Walkerana are restricted different hill ranges south Palghat Gap, an ancient valley in Ghats. In this study, we report discovery a deeply divergent lineage from high elevations Elivalmalai range. This finding extends geographic range clade north Gap. new muduga sp. nov. genetically morphologically divergent, geographically isolated its sister...

10.11646/zootaxa.4729.2.7 article EN Zootaxa 2020-01-29

Globally, high elevation habitats have been independently colonized by taxa separated millions of years evolution. Mountains thus represent excellent systems to study how distantly related species adapt the same environmental challenges. Cold temperatures influence elevational distribution birds along montane gradients. Yet eco‐physiological adaptations that may explain this pattern, such as variation in insulative feather structure across and low has not quantified. We used a comparative...

10.1111/ecog.05376 article EN cc-by Ecography 2021-02-15

Ecological restoration is crucial to mitigate climate change and conserve biodiversity, accurately monitoring responses imperative guide current future efforts. This study examines the impact of ecological a tropical dry forest in Central India. Here, state department nongovernmental organization work with local communities remove an invasive shrub, Lantana camara , forest, assist natural regeneration, primarily for purpose improving access resources forest‐dependent people. We used acoustic...

10.1111/rec.13864 article EN cc-by Restoration Ecology 2023-01-05

Ecuador's Yasuní National Park and Biosphere Reserve is one of the most biodiverse regions in world; it home to numerous species wildlife, indigenous communities, approximately $7.6 billion crude oil. Oil extraction has led patterns environmental social damage, situating government Ecuador between their responsibilities uphold rights preserve environment while advancing nation's economy. The field conflict resolution offers applicable strategies issues facing this dilemma. However, these...

10.1002/crq.21205 article EN Conflict Resolution Quarterly 2017-09-15

Disentangling associations between species occupancy and its environmental drivers –– climate land cover along tropical mountains is imperative to predict distributional changes in the future. Previous studies have primarily focused on identifying such temperate mountain systems. Using 1.29 million robustly processed citizen science observations contributed eBird 2013 2021, we examined role of climatic landscape variables association with bird occurrence within a biodiversity hotspot,...

10.1111/ecog.06075 article EN Ecography 2022-06-23

Monitoring programs aimed at assessing ecological restoration have often relied on the response of a single taxon owing to difficulty sampling multiple taxonomic groups simultaneously. Using passive acoustic monitoring, we examined impacts all vocalizing fauna simultaneously as well indicator taxon, birds. In our study, recorders were programmed collect data along gradient forest regeneration consisting actively restored (AR), naturally regenerating (NR), and mature benchmark (BM) sites in...

10.1016/j.biocon.2023.110071 article EN cc-by-nc-nd Biological Conservation 2023-04-23

Abstract Aim Elevational migration is a globally ubiquitous animal behaviour. Understanding the mechanisms that drive variation in elevational movement can help explain evolution of this widespread behaviour and its role shaping montane life history. We examine thermal regime (the intra‐annual temperature experienced by species), dispersal ability diet explaining extent movements. Location Eastern Western Himalayas. Time Period 2011–2022. Major Taxa Studied Birds. Methods used community...

10.1111/geb.13761 article EN Global Ecology and Biogeography 2023-09-21

A large number of species in the tropics are awaiting discovery, many due to their cryptic morphology ie. lack discernable morphological difference. We explored presence lineages within frog genera, Indirana and Walkerana, which endemic Western Ghats Peninsular India. By reconstructing a phylogeny using 5 genes robust geographic sampling, we delimited 19 along population—species continuum, multiple criteria including haplotype clusters, genetic distance, distinctness, geographical...

10.1371/journal.pone.0237431 article EN cc-by PLoS ONE 2020-09-02

Over the past several years, deep learning-based algorithms have become go-to solution in conservation bioacoustics for detecting and classifying animal calls soundscape recordings. While these often perform very well, they frequently require specialized computer setups expertise training running, thereby hindering scalability of solutions. Here we evaluate a new framework to overcome this challenge. We train ResNet model (ResNet50V2 pre-trained with ImageNet dataset) using open-source...

10.1121/10.0022665 article EN The Journal of the Acoustical Society of America 2023-10-01

Abstract Acoustic monitoring has the potential to deliver biodiversity insight on vast scales. Whilst autonomous recording networks are being deployed across world, existing analytical techniques struggle with generalisability. This limits that can be derived from audio recordings in regions without ground-truth calibration data. By calculating 128 learned features and 60 soundscape indices of recorded during 8,023 avifaunal point counts diverse ecosystems, we investigated generalisability...

10.1101/2022.12.19.521085 preprint EN cc-by-nc bioRxiv (Cold Spring Harbor Laboratory) 2022-12-20

Abstract With an increasing number of scientific articles published each year, there is a need to synthesize and obtain insights across ever‐growing volumes literature. Here, we present pyResearchInsights , novel open‐source automated content analysis package that can be used analyze abstracts within natural language processing framework. The collects from repositories, identifies topics research discussed in these abstracts, presents interactive concept maps visualize topics. To showcase...

10.1002/ece3.8098 article EN cc-by Ecology and Evolution 2021-09-17
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