- 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.
- Popular Article2013Acrobats on waterThe Hindu in School, 13 February
Jeganathan, P. (2013). Acrobats on water. The Hindu. In school, 13th February.
- Journal Article2013First record of Tristram's Bunting Emberiza tristrami from IndiaIndian Birds 8:134-135
- 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.
- 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 Article2013Influence of gaze and directness of approach on the escape responses of the Indian Rock Lizard, Psammophilus dorsalis (Gray, 1831).Journal of Biosciences. 38(5): 829–833.Download
PDF, 145 KB
Free download from J. Biosciences webpage:
Animals often evaluate the degree of risk posed by a predator and respond accordingly. Since many predators orient their eyes towards prey while attacking, predator gaze and directness of approach could serve as conspicuous indicators of risk to prey. The ability to perceive these cues and discriminate between high and low predation risk should benefit prey species through both higher survival and decreased energy expenditure. We experimentally examined whether Indian rock lizards (Psammophilus dorsalis) can perceive these two indicators of predation risk by measuring the variation in their fleeing behaviour in response to type of gaze and approach by a human predator. Overall, we found that the gaze and approach of the predator influenced flight initiation distance, which also varied with attributes of the prey (i.e. size/sex and tail-raise behaviour). Flight initiation distance (FID) was 43% longer during direct approaches with direct gaze compared with tangential approaches with averted gaze. In further, exploratory, analyses, we found that FID was 23% shorter for adult male lizards than for female or young male (FYM) lizards. In addition, FYM lizards that showed a tail-raise display during approach had a 71% longer FID than those that did not. Our results suggest that multiple factors influence the decision to flee in animals. Further studies are needed to test the generality of these factors and to investigate the proximate mechanisms underlying flight decisions.
- Book Review2013Chronicles of the wild -Book review of “Mammals of South Asia by A.J.T. Johnsingh & Nima Manjrekar”.The Asian Age. 23rd February.Download
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Jeganathan, P. (2013). Chronicles of the wild - Book review of “Mammals of South Asia by A.J.T. Johnsingh & Nima Manjrekar”. The Asian Age. 23rd February.
- Dataset2013Data from: Influence of gaze and directness of approach on the escape responses of the Indian rock lizard, Psammophilus dorsalis (Gray, 1831).Dryad Digital Repository. doi:10.5061/dryad.1h551
Contains both raw data and analysis scripts. Permanent link to the dataset and scripts on Dryad:
- Popular Article2013A day in the life of a butterfly fishThe Hindu in School, 10 July
- Book2013Paravaikal: arimugak kaiyedu.(A photographic field guide on birds in Tamil). Pp. 184.Cre-A, Chennai.
Jeganathan, P & Asai (2013). Paravaikal: arimugak kaiyedu.(a photographic field guide on birds in Tamil). Cre-A, Chennai. Pp. 184. (Link here)
- Journal Article2013Globalization of the Cashmere Market and the Decline of Large Mammals in Central AsiaConservation Biology 27, no. 4 (2013): 679-689
- Popular Article2013Securing Habitat of NemoFriday, April 12, Andaman Chronicles.
- Newsletter2013Where have all the dugongs gone? A study on long-term occupancy trends in the Andaman and Nicobar archipelago, India,Sirenews, Newsletter of the IUCN Sirenia Specialist Group, Vol. 60.
- Report2013Hornbills, rats, seeds and rainforest trees: plant-animal interactions and plant demographyFinal Report submitted to National Geographic Society, June 2013
- Journal Article2013Joint Indian initiative creates tiger corridorNature, 500, 29Download
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Short excerpt on the creation of 6,500 sq km of contiguous network of protected areas — the largest in the country.
- 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
- Newsletter2013Protecting the dugong: Better late than neverSpecial bulletin of the 59th Wildlife Week Booklet Department of Environment and Forests, Andaman and Nicobar Administration, September issue.
- Popular Article2013Careful while you clickThe Hindu in School, 18 September
Jeganathan, P. (2013). Careful while you click. The Hindu in School, 18 September.
- Report2013MigrantWatch 2007-2012Unpublished report, Citizen Science Programme, National Centre for Biological Sciences.
- Journal Article2013Can wetlands maintained for human use also help conserve biodiversity? Landscape–scale patterns of bird use of wetlands in an agricultural landscape in north IndiaBiological Conservation 168: 49-56. http://dx.doi.org/10.1016/j.biocon.2013.09.016
Wetlands in tropical agricultural landscapes are maintained largely by local institutions explicitly for human use, which is assumed to deter biodiversity. Conservation efforts have been biased towards protecting large wetlands that are assumed to be adequate to conserve the majority of species of focal taxa, usually birds. These assumptions remain untested, and landscape-scale conservation planning for wetlands is largely absent, as is a generalised understanding of wetland use by focal taxa. We designed a landscape-scale survey to understand patterns and processes determining beta diversity of birds using agricultural wetlands in south-western Uttar Pradesh, India where wetlands have experienced prolonged and intensive human use for several centuries. Observed bird species richness (99 species in 28 wetlands) is the highest known for any agricultural landscape in south Asia signifying that even intensive human use of wetlands does not necessarily deter their ability to retain biodiversity. Birds exhibited strong scale
dependent wetland use underscoring the need to conserve wetlands of varying sizes and at varying densities on the landscape. Beta diversity was due largely to species turnover (0.877) with minimal effect due to nestedness (0.055) suggesting that conserving a few large wetlands will not adequately meet goals of conserving the majority of wetland bird species. Prevailing assumptions regarding biodiversity conservation in tropical agricultural wetlands require being revised, and a landscape-scale approach that incorporates ecological realities is needed. Incorporating local institutions alongside formal protectionist methods offer a potential win–win situation to maximise conservation of biodiversity in tropical agricultural wetlands.