- Journal Article2011Moisture and nutrients determine the distribution and richness of India’s large herbivore species assemblageBasic and Applied Ecology 12(7): 634-642Download
PDF, 346 KB
The goal of this study was to test whether body-mass based foraging principles, guided by plant available moisture (PAM) and plant available nutrients (PAN), could explain large mammalian herbivore species distribution and richness in India. We tested (1) whether the occurrence of larger-bodied herbivore species increases with PAM, but is independent of PAN, (2) whether the occurrence of smaller-bodied herbivore species decreases with PAM, but increases with PAN, and (3) whether herbivore species richness is highest in areas with intermediate PAM and high PAN. We analyzed the distribution and richness of the 16 large (>10 kg) herbivore species found in sub-Himalayan mainland India. Since the distributions of large herbivores in India have been altered by historic human activity, we only used India's largest 76 protected areas as data points, with respect to PAM (log10(rainfall/potential evapotranspiration)), PAN (soil cation exchange capacity), elevation, tree cover, and fire frequency. Using regression and null models to analyze the data, we found positive relations between PAM and the occurrences of the larger-bodied species (elephant and gaur), and negative relations between PAM and the occurrences of smaller-bodied species (chinkara, four-horned antelope and blackbuck). We also found positive relations between the occurrence of the smaller-bodied species and PAN. Large herbivore species richness in India is highest in Kanha and Indravati, areas with high PAN and intermediate PAM. We found that elevation, tree cover and fire frequency were insignificant predictors of herbivore species richness, although elevation and tree cover explained the distribution of a few species. Based on our null model analyses results, we conclude that moisture and soil nutrients are important in determining large herbivore species distribution and richness in sub-Himalayan India.
- Report2011Conserving a hornbill havenHNAP Report for 2011Download
PDF, 1.83 MB
2011 Report for the Hornbill Nest Adoption Program
- Report2011Long-term hornbill nest and roost monitoring in Pakke Wildlife Sanctuary and Tiger Reserve (2003-2010).Unpublished Report. Submitted to Arunachal Pradesh Forest Department, Itanagar, Arunachal Pradesh, November 2011.
- Popular Article2011Trumpeting their causeThe Hindu Young World. 19th July.
Jeganathan, P. (2011). Trumpeting their cause. The Hindu Young World. 19th July. http://www.thehindu.com/life-and-style/kids/article2237914.ece
- Popular Article2011Remembering Charles Darwin.The Hindu Young World. 15th February.
Jeganathan, P. (2011). Remembering Charles Darwin. The Hindu Young World. 15th February.
- Popular Article2010Need to preserve natural capitalMint, 5 June 2010
- Popular Article2010Watching dragons and damselsCare4Nature. June. Pp 12-15. http://emagazine.care4nature.org/emagazine-june/index.htmlDownload
PDF, 962 KB
Jeganathan, P. (2010). Watching dragons and damsels. Care4Nature. June. Pp 12-15. http://emagazine.care4nature.org/emagazine-june/index.html
- Popular Article2010Watching dragons and damselsThe Hindu Young World, 6th July. http://www.hindu.com/yw/2010/07/06/stories/2010070660120200.htm
Jeganathan, P. (2010). Watching dragons and damsels. The Hindu Young World, 6th July. http://www.hindu.com/yw/2010/07/06/stories/2010070660120200.htm
- Popular Article2010Whose land is it anyway?The Hindu Young World, 26th October
Jeganathan, P. (2010). Whose land is it anyway? The Hindu Young World, 26thOctober. http://www.hindu.com/yw/2010/10/26/stories/2010102653000200.htm
- Book Review2010Culled from Nature – Book Review of Sprint of the Blackbuck.The Hindu Literary Review. 5th September. http://www.hindu.com/lr/2010/09/05/stories/2010090550080300.htm
Jeganathan, P. (2010). Culled from Nature – Book Review of Sprint of the Blackbuck. The Hindu Literary Review. 5th September. http://www.hindu.com/lr/2010/09/05/stories/2010090550080300.htm
- Popular Article2010The Journey of a Rainforest seedCare4Nature.January.Pp24-29. http://emagazine.care4nature.org/emagazine-jan2011/index.htmlDownload
PDF, 2.35 MB
Jeganathan, P & Swati, S. (2010). The Journey of a Rainforest seed. Care4Nature.January.Pp24-29. http://emagazine.care4nature.org/emagazine-jan2011/index.html
- Book Chapter2010Status and conservation of tigers in the Indian subcontinentPages 313-326 in R. Tilson and P. Nyhus (editors) Tigers of the World 2nd Edition, The Science, Politics and Conservation of Panthera tigris. Elsevier, UK
- Journal Article2010Commercializing bycatch can push a fishery beyond economic extinctionConservation Letters 3: 277-285Download
PDF, 255 KB
Tropical bottom trawling is among the most destructive fishing practices, catch- ing large quantities of bycatch, which are usually discarded. We used question- naire surveys of trawl fishers to look at changes in catches over the last 30 years (1978–2008) along India’s Coromandel Coast. We show that catches and in- come from target species have declined sharply over the last two decades. Meanwhile, costs of fishing have increased substantially and now almost ex- ceed income from target species. Over the same period, bycatch (which was traditionally discarded) has now become increasingly marketable, being sold for local consumption, and as fish meal to supply the region’s rapidly growing poultry industry. Without this income from bycatch, the fishery would scarcely be economically viable. While such a change in the use of bycatch is good news in terms of reducing waste and improving livelihoods, it is also responsible for pushing the Indian bottom trawl fishery beyond the economic extinction of its target species.
- Journal Article2010Trawling the shorelinesSeminar. September 2010. Nature without Borders: A symposium on innovative approaches to conserving nature and wildlife
Fishing in India has grown exponentially. It is an industry adapting to its own economic impulses, keeping itself afloat – quite literally – by responding to changes in supply and demand, seeking new markets, repackaging its products and by-products to woo these new markets, reinventing itself constantly in order to survive. The upshot of this industrial inventiveness is that a system of production that should have been designated unsustainable years ago, continues to persist at an increasing ecological cost. And since all of this happens beneath the waves, it largely escapes the noisy debates over the vanishing wilds.
In this paper we present a potted history of trawl fishing along the Indian coastline, and trace its ecological and economic fallout to coastal communities, both human and marine. We discuss the factors currently driving the economics of trawling within the Indian scenario, and explore potential directions towards a more meaningful management of this harvest. Our discussion focuses on fishery off the Coromandel coast, since that is the area we are most familiar with, but it is indicative of much of the rest of the Indian coastline.
- Journal Article2010Why should a grazer browse? Livestock impact on winter resource use by bharal Pseudois nayaur.Oecologia, DOI 10.1007/s00442-009-1467-x.
- Journal Article2010Multi-spatial co-distribution of the endangered Ladakh urial and blue sheep in the arid Trans-Himalayan mountains.Journal of Arid Environments, 74 : 1162–1169.
- Journal Article2010Proposed methods to capture and radio-tag the critically endangered Jerdon's Couser in Andhra Pradesh, India.Telemetry in Wildlife Science, ENVIS Bulletin. WII -Dehradun.Download
PDF, 4.95 MB
Jeganathan, P., Green, R.E., Rahmani, A.R (2010) Proposed methods to capture and radio-tag the critically endangered Jerdon's Couser in Andhra Pradesh, India (in). Sivakumar, K. and Habib,B. (Eds.) 2010. Telemetry in Wildlife Science, ENVIS Bulletin: Widlife & Protected Areas. Vol. 13 No. 1. Wildlife Institute of India, Dehradun - 248001. India. Pp. 205-210.
- Newsletter2010A Blow to Marine LifeBushchat, NCF Newsletter (Special issue)
- Popular Article2010Desperate neighbours: wildlife and the rural poorThe Hindu Survey of the Environment 2010, pp. 113-118Download
PDF, 3.79 MB
A conservation plan that is not blind to people's needs can be rewarding, as the story of two villages on the fringe of Bandipur Forest Reserve shows. Pavithra Sankaran and MD Madhusudan explain how a novel plan got it right.
- Journal Article2010The birds of Namdapha National Park: recent significant records and a checklist of the species.Forktail 26: 108-132.