- Poster2014Eagles and their KinDownload
PDF, 8 MB
Black Eagle, Oriental Honey Buzzard, Osprey, Grey-headed Fish Eagle, Peregrine Falcon, Crest Serpent Eagle, Besra,Bazas, Staccato, Tamil
- Poster2014Chital and SambarDownload
JPG, 753 KB
Chital(Spotted Deer), Sambar, Snarling, Leopards, Tigers
- Poster2014Invertebrates of the Western Ghats - Scorpionssupported by Critical Ecosystem Partnership FundDownload
PDF, 4.37 MB
Scorpions, Trichobothria, Pectine, Exoskeleton, Heterometrus
- Journal Article2014Tiger poaching and trafficking in India: estimating rates of occurrence and detection over four decadesBiological Conservation, doi: 10.1016/j.biocon.2014.08.016
Poaching, prey depletion and habitat destruction have decimated the world’s wild tiger population to fewer than 3200–4000. Despite focused efforts, poaching continues to be the key threat to tiger populations in India, home to more than half of the world’s tigers. A rise in the number of incidences of tiger poaching and trafficking may not essentially represent an increase in the actual occurrence of tiger poaching and trafficking, but can instead be an indication of better enforcement. With ad hoc detection rates, it becomes difficult to estimate the true quantum of poaching and the efficiency of enforcement. We empirically estimate the probability of occurrence of tiger crime and that of detecting it during periods of 3–7 years in the past 40 years in the 605 districts of India. We test the hypotheses that tiger crime is influenced by the presence of tiger trade hubs, proximity to a number of tiger habitats, and that tiger poachers prefer to use rail routes over road highways. The annual probability of detecting tiger crime was estimated to be highest (0.46, 95% CI = 0.38–0.54) in the period between 1993 and 1995. Our results identify 73 districts as current tiger crime hotspots with high (>0.5) probability of occurrence of tiger crime. We propose that the probability of occurrence of tiger crime can be a more reliable estimator of changing poaching pressures and that probability of detecting tiger crime provides a robust estimate of the efficiency in tackling tiger poaching and trafficking.
- Poster2014Larval connectivity in Lakshadweep
PDF, 7.49 MB
Cultivated Vanilla, Lady's Slipper Orchids, Epiphytes
PDF, 6.79 MB
White-cheeked Barbet, Coppersmith Barbet, Green Plumage, Stout Beaks
- Poster2014Shola GrasslandsDownload
JPG, 776 KB
Shola, Mosses, Epiphytes, Wild Balsams, Kurinji, Rhodendron, Orchids, Nilgiri Tahr, Nilgiri Pipit, White-bellied Shortwing, Tamil
- Poster2014Deciduous ForestsDownload
JPG, 1.38 MB
Dry Deciduous Forests, Teak, Bamboo, Chital, Drongos, Moist Deciduous Forests,Rosewood, Malabar Pied Hornbills, Asian Elephants, Gaur, Tiger, Leopard, Dhole, Timber, Tamil
- Poster2014Snakes of the Western Ghatssupported by Critical Ecosystem Partnership FundDownload
PDF, 24.3 MB
Common Vine Snake(Ahaetulla Nasuta), Ornate Flying Snake(Chrysopelea Ornata), The Wynad Shieldtail(Melanophidium Wynaudense), Olive Forest Snake(Rhabdops Olivaceus), Western Kukri Snakes(Oligodon Affinis)
- Poster2014Dhole and Sloth BearDownload
JPG, 478 KB
Dhole(Wild Dogs), Mongrel, Sambar, Sloth Bear, Nocturnal, Termite, Ant Larvae
- Poster2014Rivers and WetlandsDownload
JPG, 1.05 MB
Aquatic Plants, Bamboos, Cormorants, Otters, Stripe-necked Mongooses, Frogs, Whistling Thrush, Damselfly, Tamil
- Poster2014Invertebrates Of The Western Ghats - Centipedessupported by Critical Ecosystem Partnership FundDownload
PDF, 12.2 MB
Centipedes, Scolopendridae, Digtipes
- Poster2014Invertebrates of the Western Ghats - Spiderssupported by Critical Ecosystem Partnership FundDownload
PDF, 8.1 MB
Spiders, Spinnerets, Arachnura, Giant Wood Spiders
- Journal Article2014Long-lived benthic predators require structurally stable reefs in the face of repeated climate-change disturbancesCoral Reefs. 33: 289-302
Benthic recovery from climate-related disturbances does not always warrant a commensurate functional recovery for reef-associated fish communities. Here, we examine the distribution of benthic groupers (family Serranidae) in coral reef communities from the Lakshadweep archipelago (Arabian Sea) in response to structural complexity and long-term habitat stability. These coral reefs that have been subject to two major El Nin ̃o Southern Oscillation-related coral bleaching events in the last decades (1998 and 2010). First, we employ a long-term (12-yr) benthic- monitoring dataset to track habitat structural stability at twelve reef sites in the archipelago. Structural stability of reefs was strongly driven by exposure to monsoon storms and depth, which made deeper and more sheltered reefs on the eastern aspect more stable than the more exposed (western) and shallower reefs. We surveyed groupers (species richness, abundance, biomass) in 60 sites across the entire archipelago, representing both exposures and depths. Sites were selected along a gradient of structural complexity from very low to high. Grouper biomass appeared to vary with habitat stability with significant differences between depth and exposure; sheltered deep reefs had a higher grouper biomass than either sheltered shallow or exposed (deep and shallow) reefs. Species richness and abundance showed similar (though not significant) trends. More interestingly, average grouper biomass increased exponentially with structural complexity, but only at the sheltered deep (high stability) sites, despite the availability of recovered structure at exposed deep and shallow sites (lower-stability sites). This trend was especially pronounced for long-lived groupers (life span [10 yrs). These results suggest that long-lived groupers may prefer temporally stable reefs, independent of the local availability of habitat structure. In reefs subject to repeated disturbances, the presence of structurally stable reefs may be critical as refuges for functionally important, long-lived species like groupers.
- Popular Article2014உண்டி கொடுத்தோம், உயிர் கொடுத்தோமா? (On ill effects of feeding monkeys).தி இந்து நாளிதழ். The Hindu Tamil News Daily. 16th September 2014.
Jeganathan, P. (2014).உண்டி கொடுத்தோம், உயிர் கொடுத்தோமா? - தி இந்து நாளிதழ் உயிர்மூச்சு இணைப்பில், ‘இயற்கையின் வாசலில்’ தொடர்எண் – 11. 16th September 2014. Undi Koduthom Uyir Koduthoma?– Iyarkayin Vaasalil ArticleSeries No.11 (On ill effects of feeding monkeys). The Hindu Tamil News Daily. 16th September 2014.
- Popular Article2014ஓர் இன்பச் சுற்றுலாவும், அதற்குப் பிறகும். (On impact of mass tourism in hill stations and irresponsible tourists)தி இந்து நாளிதழ். The Hindu Tamil News Daily. 23rd September 2014.
Jeganathan, P. (2014). ஓர் இன்பச் சுற்றுலாவும், அதற்குப் பிறகும் - தி இந்து நாளிதழ் உயிர்மூச்சு இணைப்பில், ‘இயற்கையின் வாசலில்’ தொடர்எண் – 12. 23rd September 2014. Or Inba Sutrulavum Atharku Piragum– Iyarkayin Vaasalil ArticleSeries No.12 (On impact of mass tourism in hill stations and irresponsible tourists). The Hindu Tamil News Daily. 23rd September 2014.
- Dataset2014Multiscale factors affecting human attitudes toward snow leopards and wolves. Dryad Digital Repository.http://dx.doi.org/10.5061/dryad.6f8p0
- 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 Article2014Fancy sea fanThe Hindu in School, 24 December