- Popular Article2013Glories of the StreamsThe Hindu in School, 6 February
Jeganathan, P. (2013). Glories of the Streams. The Hindu in School, 6 February
- Journal Article2013Opportunistic exploitation: an overlooked pathway to extinctionTrends in Ecology and Evolution. 28(7): 409-413Download
PDF, 951 KB
How can species be exploited economically to extinction? Past single-species hypotheses examining the economic plausibility of exploiting rare species have argued that the escalating value of rarity allows extinction to be profitable. We describe an alternative pathway toward extinction in multispecies exploitation systems, termed ‘opportunistic exploitation’. In this mode, highly valued species that are targeted first by fishing, hunting, and logging become rare, but their populations can decline further through opportunistic exploitation while more common but less desirable species are targeted. Effectively, expanding exploitation to more species subsidizes the eventual extinction of valuable species at low densities. Managers need to recognize conditions that permit opportunistic depletion and pass regulations to protect highly desirable species when exploitation can expand to other species.
- Book Chapter2013Anthropogenic Influences on Macaque Populations and Their Genetic ConsequencesPages 209 to 224 in S. Radhakrisna and A. Sinha (editors) The Macaque Connection: Cooperation and Conflict between Humans and Macaques, Springer, New Delhi.Download
PDF, 338 KB
Human–macaque interactions constitute a complex phenomenon influencing perhaps the biology of the macaque more profoundly than ours. At the population level, humans tend to influence the distribution, demography, immunology and even behaviour of the macaque species they interact with though none of these interactions are ever simple. These works at different levels, interacting, in turn, with other environmental factors and most of these impacts are likely to have genetic consequences over the long term. In this chapter, we reviewed available literature on anthropogenic impacts on macaque populations. We should, however, stress that our current state of knowledge, unfortunately, suffers from a serious lack of insight into such genetic impacts. There is, therefore, a dire need for long-term genetic monitoring programmes to understand the effect of anthropogenic factors on the dispersal and demography of different macaque species.
- Book2013The Macaque Connection: Cooperation and Conflict between Humans and MacaquesSeries: Developments in Primatology: Progress and Prospects, Vol. 43, Springer, New Delhi
Most successful among the non-human primates in terms of geographical distribution and adaptability to ecological habitats, macaques have existed for many thousands of years in close contact with modern humans, the only primate more successful than them. Centuries-old literary works attest to the fact that macaques have always been an intrinsic part of human lives and imaginations. In their interactions with humans, macaques play multiple roles that often transcend the boundaries of categorization. They are often, simultaneously, wildlife and domestic pets, sentient beings and experimental subjects, crop-raiding pests and religious symbols. In many parts of the tropics, macaques are an economic resource for human communities, as they provide meat and money through tourism and the animal trade. Equally, they cause much damage and bring about great economic losses due to their crop- and house-raiding tendencies. A more recent cause for alarm has been the possibility of transmission of diseases to humans due to contact with macaques. Across Asia, macaques, perhaps more than any other animal species, exemplify the multiple facets of synurbization and the conservation problems of commensal species. Humans and macaques associate in rather remarkable ways, and this volume explores the tone and nature of those human-macaque connections by focusing on various forms of interactions between macaques and humans, change in human attitudes vis-à-vis macaques over the ages, cultural views on macaques, human-macaque conflict and its conservation implications. Its holistic perspective of the myriad aspects that illustrate the singular relationship between men and macaques makes it essential reading not only for primatologists and anthropologists but also for anyone interested in the intricacies of human-animal relations.
- Book Chapter2013Goral Nemorhaedus goralMammals of South Asia (eds A. J. T. Johnsingh & N.Manjrekar).Universities Press, Hyderabad.
- Journal Article2013An expedition to Narcondam: observations of marine and terrestrial fauna including the island-endemic hornbill.Current Science 105: 346-360.
- Popular Article2013மயில் வதை – தடுக்க என்ன வழி? (On Peafowl-human conflict and its mitigation measures)தினமணி நாளிதழ் – கொண்டாட்டம் இணைப்பில். 6 ஜனவரி 2013. Dinamani – Tamil Newspaper. 6th January 2013.
மயில் வதை – தடுக்க என்ன வழி?தினமணி நாளிதழ் – கொண்டாட்டம் இணைப்பில். 6 ஜனவரி 2013.[Jeganathan, P. (2013). Mayil Vathai – Thadukka enna vazi? (On Peafowl-human conflict and its mitigation measures).]
- Journal Article2013Greener pastures? High-density feeding aggregations of green turtles precipitate species shifts in seagrass meadowsJournal of Ecology. 101: 1158-1168
1. Historical declines of marine megaherbivores have led to a view of seagrass communities structured largely by abiotic disturbance and plant competition. There is, however, growing recognition of the significance of top-down control through herbivory, on seagrass ecosystem processes, raising the question of how meadows functioned under historically high populations of megaherbivores. 2. We assess the impacts of such intense herbivory on seagrass meadow composition in the Lakshadweep islands (India), where high-density feeding aggregations of green turtles have persisted for over a decade. We use a series of complementary approaches: (i) natural herbivory exclosures (ii) published data on seagrass composition before and after turtles established (at one atoll: Agatti) and (iii) present species composition along a turtle herbivory gradient over multiple atolls.
...to read more, download the full paper
- Journal Article2013People, predators and perceptions: patterns of livestock depredation by snow leopards and wolves.Journal of Applied Ecology 50 (3), 550-560
- Popular Article2013A morning with ‘Bloated Stomach’The Hindu in School, 8 May
- Popular Article2013Not so deserted, after all!The Hindu in School, 6 November
- Popular Article2013Shooting down bharalENVIRONDownload
PDF, 2.6 MB
Talks about exploring a remote valley in Kinnaur and a fascinating sighting of bharal or blue sheep
- Journal Article2013Role of Tibetan Buddhist Monasteries in Snow Leopard ConservationConservation Biology. DOI: 10.1111/cobi.12135
- Journal Article2013Globalization of the Cashmere Market and the Decline of Large Mammals in Central AsiaConservation Biology 27: 679-689
- Journal Article2013Large carnivores and low diversity of optimal prey: a comparison of the diets of snow leopards Panthera uncia and wolves Canis lupus in Sarychat-Ertash Reserve in KyrgyzstanOryx DOI:10.1017/S0030605313000306
- Popular Article2013Careful while you clickThe Hindu in School, 18 September
Jeganathan, P. (2013). Careful while you click. The Hindu in School, 18 September.
- Journal Article2013Reversible immobilization of free-ranging snow leopards (Panthera uncia) using a combination of Medetomidine and Tiletamine-ZolazepamJournal of Wildlife Diseases DOI: 10.7589/2012-02-049
- Journal Article2013Globalization of the Cashmere Market and the Decline of Large Mammals in Central AsiaConservation Biology 27, no. 4 (2013): 679-689
- Popular Article2013A day in the life of a butterfly fishThe Hindu in School, 10 July
- Book Chapter2013The Monkey in the Town’s Commons, Revisited: An Anthropogenic History of the Indian Bonnet MacaquePages 187-208 in S. Radhakrishna et al. (eds.), The Macaque Connection: Cooperation and Conflict between Humans and Macaques, Developments in Primatology: Progress and Prospects, Springer, New Delhi