- Poster2014Cuckoos And Their KinDownload
PDF, 13 MB
Blue-faced Malkhoa, Common Hawk Cuckoo, Drongo Cuckoo, Large Hawk Cuckoo, Grey-bellied Cuckoo, Greater Coucal, Sirkeer Malkhoa, Tamil
- Thesis2014An investigation into the interactions among wild ungulates and livestock in the temperate forests of Kaj-i-nagManipal University, Manipal, Karnataka
JPG, 455 KB
Landscape Species, Forests, Grasslands, Plantations, Cow Elephants, 'Matriarch'
- Journal Article2014Photographic records of the Ratel Mellivora capensis from the southern Indian state of KarnatakaSmall Carnivore Conservation, 50, 42-44.
Understanding about the occurrence and distribution of the Ratel Mellivora capensis from the Indian subcontinent is hindered by the animal’s elusive nature. The first photographic evidence of Ratel for the southern Indian state of Karnataka comprises 41 camera-trap records from Cauvery Wildlife Sanctuary. During January–March 2014, Ratels were detected in the sanctuary’s different forest types broadly in proportion to camera-trapping effort therein. A wider occupancy survey, using a range of methods including camera-trapping, would help obtain a better understanding of the distribution of this cryptic species in Karnataka and neighbouring regions.
- Poster2014Spotting Elephant SignsDownload
JPG, 353 KB
Dung, Herd, Inefficient Digestion, Debark, Tuskers, Deciduous Forests, Grewia, Teak
- Poster2014சிறுத்தையை அறிந்துகொள்வோம்Poster produced in collaboration with Wildlife Conservation Society.Download
PDF, 2.28 MB
சிறுத்தை-மனிதன் எதிர்கொள்ளலைப் பற்றிய விளக்கச் சுவரிதழ்.
- Poster2014Snakes of the Western Ghats - Pit Viperssupported by Critical Ecosystem Partnership FundDownload
PDF, 14.2 MB
Large-scaled Pit Vipers(Trimeresurus Macrolepsis), Hump-nosed Pit Vipers(Hypnale Hypnale), Malbar Pit Vipers(Trimeresurus Malbaricus), Bamboo Pit Vipers, Horseshoe Pit Vipers
- Popular Article2014A travel guide to MarsThe Hindu in School, 22 SeptemberDownload
PDF, 1.06 MB
- Popular Article2014Faraway, so closeThe Hindu in School, 29 SeptemberDownload
PDF, 1.01 MB
- Journal Article2014Assessing leopard occurrence in the plantation landscape of Valparai, Anamalai HillsCurrent Science 107: 1381-1385.Download
PDF, 6.97 MB
Available from this link: http://www.currentscience.ac.in/Volumes/107/09/1381.pdf
- Popular Article2014அண்டங்காக்கையின் ஆச்சரியத் தேடல். (On Jungle Crows searching and feeding on tadpoles)தி இந்து நாளிதழ். The Hindu Tamil News Daily. 9th September 2014.
Jeganathan, P. (2014). அண்டங்காக்கையின் ஆச்சரியத் தேடல் - தி இந்து நாளிதழ் உயிர்மூச்சு இணைப்பில், ‘இயற்கையின் வாசலில்’ தொடர்எண் – 10. 9th September 2014. Andangkakkaiyin Acharya Thedal– Iyarkayin Vaasalil ArticleSeries No.10 (On Jungle Crows searching and feeding on tadpoles). The Hindu Tamil News Daily. 9th September 2014.
- Poster2014Tracking Tigers and LeopardsDownload
JPG, 570 KB
Tigers, Leopards, Pugmarks, Soil, Moisture, Claw Marks, Scats, Scrapes, Remains of Prey, Scent-marking
- Popular Article2014களக்காடு தந்த பரிசுகள். (On sighting various life forms in Kalakad Mundanthurai Tiger Reserve)தி இந்து நாளிதழ். The Hindu Tamil News Daily. 30th September 2014.
Jeganathan, P. (2014).களக்காடு தந்த பரிசுகள் - தி இந்து நாளிதழ் உயிர்மூச்சு இணைப்பில், ‘இயற்கையின் வாசலில்’ தொடர் எண் – 13. 30th September 2014. Kalakkadu Thantha Parisugal– Iyarkayin Vaasalil ArticleSeries No.13 (On sighting various life forms in Kalakad Mundanthurai Tiger Reserve). The Hindu Tamil News Daily. 30th September 2014.
PDF, 19.9 MB
White-bellied Woodpecker, Black-rumped Flamebach, Rufous Woodpecker, Speckled Piculet, Tamil
- Journal Article2014Local and Landscape Correlates of Primate Distribution and Extinction in Upper Brahmaputra ValleyConservation Biology 28(1): 95-106Download
PDF, 807 KB
Habitat fragmentation affects species distribution and abundance, and drives extinctions. Es- calated tropical deforestation and fragmentation have confined many species populations to habitat rem- nants. How worthwhile is it to invest scarce resources in conserving habitat remnants within densely settled production landscapes? Are these fragments fated to lose species anyway? If not, do other ecologi- cal, anthropogenic, and species-related factors mitigate the effect of fragmentation and offer conservation opportunities? We evaluated, using generalized linear models in an information-theoretic framework, the effect of local- and landscape-scale factors on the richness, abundance, distribution, and local extinction of 6 primate species in 42 lowland tropical rainforest fragments of the Upper Brahmaputra Valley, northeastern India. On average, the forest fragments lost at least one species in the last 30 years but retained half their original species complement. Species richness declined as proportion of habitat lost increased but was not significantly affected by fragment size and isolation. The occurrence of western hoolock gibbon (Hoolock hoolock) and capped langur (Trachypithecus pileatus) in fragments was inversely related to their isolation and loss of habitat, respectively. Fragment area determined stump-tailed (Macaca arctoides) and northern pig-tailed macaque occurrence (Macaca leonina). Assamese macaque (Macaca assamensis) distribution was affected negatively by illegal tree felling, and rhesus macaque (Macaca mulatta) abundance increased as habitat heterogeneity increased. Primate extinction in a fragment was primarily governed by the extent of divergence in its food tree species richness from that in contiguous forests. We suggest the conservation value of these fragments is high because collectively they retained the entire original species pool and individually retained half of it, even a century after fragmentation. Given the extensive habitat and species loss, however, these fragments urgently require protection and active ecological restoration to sustain this rich primate assemblage.
- Poster2014Venomous SnakesDownload
PDF, 20.2 MB
Malabar Pit Viper, Striped Coral Snake, Large-scaled Pit Viper, Hump-nosed Pit Viper, Spectacled Cobra, Common Krait, Rats, Heat-sensitive Pit, Tamil
- Poster2014Larval connectivity in Lakshadweep
- Journal Article2014Spatio-temporal variation in forest cover and biomass across sacred groves in a human-modified landscape of India's Western GhatsBiological Conservation 178: 193-199.
Although the potential for community-conserved areas (CCAs) to extend conservation beyond formal protected areas is widely acknowledged, the scarcity of conservation assessments and monitoring hinders the rigorous evaluation of their effectiveness in many regions. In India, which hosts a high density and diversity of CCAs, the need for more assessments of the ecological and socio- economic properties of these systems to guide conservation planning and policy has been emphasized in recent years. We inventoried the extant sacred grove network against official records of 407 groves across 70 villages in the Kodagu District of India's Western Ghats, and interviewed local communities about their management and conservation. We also evaluated recent trends in aboveground biomass of sacred groves using time-series satellite data from six time-points during the 2000-2010 period, and made comparisons to corresponding trends in nearby State-managed protected forests. Although most of the larger (> 2ha) groves officially listed were forested at present, over two-thirds of the smaller groves listed were either not forested or could not be located. Local communities attributed these declines to encroachment and illicit logging. Time-series satellite data revealed aboveground biomass declines of ~0.5% annually across the sacred grove network over the 2000-2010 period. In contrast, biomass increased during this period at the interiors and edges of State-managed forests in the landscape. Our results highlight that the conservation status of even well-protected CCAs can vary considerably over time, especially given the dynamism in socio-economic, cultural and ecological factors that govern their status. We argue that understanding and addressing this dynamism is crucial to the conservation of CCAs.
- Popular Article2014தவளைகள் பாடிய தாலாட்டு. (On Rainforest Frogs)தி இந்து நாளிதழ். The Hindu Tamil News Daily. 7th October 2014.
Jeganathan, P. (2014). தவளைகள் பாடிய தாலாட்டு -தி இந்து நாளிதழ் உயிர்மூச்சு இணைப்பில், ‘இயற்கையின் வாசலில்’ தொடர் எண் – 14. 7th October 2014. Thavalaigal Padiya Thalattu– Iyarkayin Vaasalil ArticleSeries No.14 (On Rainforest Frogs). The Hindu Tamil News Daily. 7th October 2014.
- Popular Article2014இலையில்லை, நாம் இல்லை. (On Leaves and why are young leaves are red)தி இந்து நாளிதழ். The Hindu Tamil News Daily. 21st October 2014.
Jeganathan, P. (2014). இலையில்லை, நாம் இல்லை - தி இந்து நாளிதழ் உயிர்மூச்சு இணைப்பில், ‘இயற்கையின் வாசலில்’ தொடர் எண் – 16. 21st October 2014. Ilaiyillai Namillai – Iyarkayin Vaasalil ArticleSeries No.16 (On Leaves and why are young leaves are red). The Hindu Tamil News Daily. 21st October 2014.