• Population size estimation of an Asian elephant population in eastern Cambodia through non-invasive mark-recapture sampling 

  Gray, Thomas N. E.; Vidya, T. N. C.; Potdar, Sheetal; Bharti, D. K.; Sovanna, Prum (Springer, 2014)

  The Asian elephant is a flagship species for conservation in tropical Asia, but reliable population estimates are available only from a few populations. This is because the species can be elusive and occurs at low densities ...
• Using genetic analysis to estimate population size, sex ratio, and social organization in an Asian elephant population in conflict with humans in Alur, southern India 

  Chakraborty, Subhankar; Boominathan, D.; Desai, Ajay A.; Vidya, T. N. C. (Springer, 2014)

  With growing human and, possibly, elephant populations and a drastic increase in anthropogenic activities, human-elephant conflict in Asia has been on the rise. The Alur area in Karnataka state, southern India, is one such ...
• Common Myna Roosts Are Not Recruitment Centres 

  Sarangi, Manaswini; Ganguly, Payel; Zenia; Arvind, Chiti; Lakshman, Abhilash; Vidya, T. N. C. (Public Library of Science, 2014)

  We studied communal roosting in the Common Myna (Acridotheres tristis) in the light of the recruitment centre hypothesis and predation at the roost. The number and sizes of flocks departing from and arriving at focal roosts ...
• Large, secondarily collected data in biological and environmental sciences 

  Vidya, T. N. C. (Indian Academy of Sciences, 2014)
• Novel behaviour shown by an Asian elephant in the context of allomothering 

  Vidya, T. N. C. (Springer Heidelberg, 2014)

  In the absence of large sample sizes, logistic difficulties, and, more importantly, knowledge about appropriate hypotheses to test cognition in elephants, reliable anecdotal observations from field studies are increasingly ...
• Effects of symmetric and asymmetric dispersal on the dynamics of heterogeneous metapopulations: Two-patch systems revisited 

  Dey, Snigdhadip; Goswami, Bedartha; Joshi, Amitabh (Academic Press Ltd- Elsevier Science Ltd, 2014)

  Although the effects of dispersal on the dynamics of two-patch metapopulations are well studied, potential interactions between local dynamics and asymmetric dispersal remain unexplored. We examined the dynamics of two ...
• Selection for narrow gate of emergence results in correlated sex-specific changes in life history of Drosophila melanogaster 

  Varma, Vishwanath; Kannan, Nisha N.; Sharma, Vijay Kumar (Company Of Biologists Ltd, 2014)

  Since the ability to time rhythmic behaviours in accordance with cyclic environments is likely to confer adaptive advantage to organisms, the underlying clocks are believed to be selected for stability in timekeeping over ...
• Rhythmic egg-laying behaviour in virgin females of fruit flies Drosophila melanogaster 

  Menon, Anuj; Varma, Vishwanath; Sharma, Vijay Kumar (Informa Healthcare, 2014)

  Fruit fly Drosophila melanogaster females display rhythmic egg-laying under 12: 12 h light/dark (LD) cycles which persists with near 24 h periodicity under constant darkness (DD). We have shown previously that persistence ...
• Role of Temperature in Mediating Morning and Evening Emergence Chronotypes in Fruit Flies Drosophila melanogaster 

  Nikhil, K. L.; Goirik, Gupta; Ratna, Karatgi; Sharma, Vijay Kumar (Sage Publications Inc, 2014)

  Following decades of research under controlled laboratory conditions, there has been growing interest in the recent past to study circadian rhythms in nature. Recent studies conducted under natural conditions have been ...
• Interaction of light regimes and circadian clocks modulate timing of pre-adult developmental events in Drosophila 

  Yadav, Pankaj; Thandapani, Madhumohan; Sharma, Vijay Kumar (Biomed Central Ltd, 2014)

  Background: Circadian clocks have been postulated to regulate development time in several species of insects including fruit flies Drosophila melanogaster. Previously we have reported that selection for faster pre-adult ...
• Breakdown of selection-mediated correlation between development time and clock period 

  Yadav, Pankaj; Sharma, Vijay Kumar (Pergamon-Elsevier Science Ltd, 2014)

  Previously we have reported that selection for faster pre-adult development in fruit flies speeded-up development by similar to 29-h and shortened the clock period (tau) by similar to 0.5 h, which suggests that development ...
• Circadian clocks of faster developing fruit fly populations also age faster 

  Yadav, Pankaj; Sharma, Vijay Kumar (Springer, 2014)

  Age-related changes in circadian rhythms have been studied in several model organisms including fruit flies Drosophila melanogaster. Although a general trend of period (tau) lengthening, reduction in rhythm strength and ...
• Correlated changes in life history traits in response to selection for faster pre-adult development in the fruit fly Drosophila melanogaster 

  Yadav, Pankaj; Sharma, Vijay Kumar (Company Of Biologists Ltd, 2014)

  Insects including the fruit fly Drosophila melanogaster are under intense pressure to develop rapidly because they inhabit ephemeral habitats. We have previously shown that when selection for faster development was ...
• Enhancement of larval immune system traits as a correlated response to selection for rapid development in Drosophila melanogaster 

  Dey, Punyatirtha; Mendiratta, Kanika; Bose, Joy; Joshi, Amitabh (Indian Academy Sciences, 2016)
• Adaptation to larval crowding in Drosophila ananassae and Drosophila nasuta nasuta: increased larval competitive ability without increased larval feeding rate 

  Nagarajan, Archana; Natarajan, Sharmila Bharathi; Jayaram, Mohan; Thammanna, Ananda; Chari, Sudarshan; Bose, Joy; Jois, Shreyas V.; Joshi, Amitabh (Indian Academy Sciences, 2016)

  The standard view of adaptation to larval crowding in fruitflies, built on results from 25 years of multiple experimental evolution studies on Drosophila melanogaster, was that enhanced competitive ability evolves primarily ...
• Evolution of increased larval competitive ability in Drosophila melanogaster without increased larval feeding rate 

  Sarangi, Manaswini; Nagarajan, Archana; Dey, Snigdhadip; Bose, Joy; Joshi, Amitabh (Indian Academy Sciences, 2016)

  Multiple experimental evolution studies on Drosophila melanogaster in the 1980s and 1990s indicated that enhanced competitive ability evolved primarily through increased larval tolerance to nitrogenous wastes and increased ...
• Life-history traits of Drosophila melanogaster populations exhibiting early and late eclosion chronotypes 

  Nikhil, K. L.; Ratna, Karatgi; Sharma, Vijay Kumar (Biomed Central Ltd, 2016)

  Background: The hypothesis that circadian clocks confer adaptive advantage to organisms has been proposed based on its ubiquity across almost all levels of complexity and organization of life-forms. This thought has received ...
• Circadian clock properties of fruit flies Drosophila melanogaster exhibiting early and late emergence chronotypes 

  Nikhil, K. L.; Vaze, Koustubh M.; Ratna, Karatgi; Sharma, Vijay Kumar (Taylor & Francis Inc, 2016)

  The role of circadian clocks in timing daily behaviors is widely acknowledged, and while empirical evidence suggests that clock period is correlated with the preferred phase of a rhythmic behavior (chronotype), other clock ...
• Evolution of robust circadian clocks in Drosophila melanogaster populations reared in constant dark for over 330 generations 

  Shindey, Radhika; Varma, Vishwanath; Nikhil, K. L.; Sharma, Vijay Kumar (Springer Heidelberg, 2016)

  Robustness is considered to be an important feature of biological systems which may evolve when the functionality of a trait is associated with higher fitness across multiple environmental conditions. Thus, the ability to ...
• Molecular Correlates of Circadian Clocks in Fruit Fly Drosophila melanogaster Populations Exhibiting early and late Emergence Chronotypes 

  Nikhil, Kunjalli Lokesh; Abhilash, Lakshman; Sharma, Vijay Kumar (Sage Publications Inc, 2016)

  Although association of circadian clock properties with the timing of rhythmic behaviors (chronotype) has been extensively documented over several decades, recent studies on mice and Drosophila have failed to observe such ...

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