JPG, 318 KB
Prey Animals, Gaur, Sambar, Cubs, Tiger, Poaching, Herbivore Prey
- 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
- Journal Article2014Genetic diversity and population structure of Lantana camara in India indicates multiple introductions and gene flow.Plant Biology. 16(3): 651-658.Download
PDF, 278 KB
Lantana camara is a highly invasive plant, which has spread over 60 countries and island groups of Asia, Africa and Australia. In India, it was introduced in the early nineteenth century, since when it has expanded and gradually established itself in almost every available ecosystem. We investigated the genetic diversity and population structure of this plant in India in order to understand its introduction, subsequent range expansion and gene flow. A total of 179 individuals were sequenced at three chloroplast loci and 218 individuals were genotyped for six nuclear microsatellites. Both chloroplasts (nine haplotypes) and microsatellites (83 alleles) showed high genetic diversity. Besides, each type of marker confirmed the presence of private polymorphism. We uncovered low to medium population structure in both markers, and found a faint signal of isolation by distance with microsatellites. Bayesian clustering analyses revealed multiple divergent genetic clusters. Taken together, these findings (i.e. high genetic diversity with private alleles and multiple genetic clusters) suggest that Lantana was introduced multiple times and gradually underwent spatial expansion with recurrent gene flow.
JPG, 455 KB
Landscape Species, Forests, Grasslands, Plantations, Cow Elephants, 'Matriarch'
- Poster2014Tracking Tigers and LeopardsDownload
JPG, 570 KB
Tigers, Leopards, Pugmarks, Soil, Moisture, Claw Marks, Scats, Scrapes, Remains of Prey, Scent-marking
PDF, 17.7 MB
Lithe, Nimble, Palm Civets, Brown Palm Civet, Malabar Civet, Tamil
- Journal Article2014Vigorous Dynamics Underlie a Stable Population of the Endangered Snow Leopard Panthera uncia in Tost Mountains, South Gobi, MongoliaPLoS One. DOI: 10.1371/journal.pone.0101319
- Book Chapter2014Nature Without Borders: An IntroductionPages 1-40 in Rangarajan, M., Madhusudan, M. D., & Shahabuddin, G. (eds.) Nature Without Borders. Orient Blackswan.
- Popular Article2014நண்டு வரைந்த அழகுக் கோலங்கள். (On Soldier Crab and its sunburst)தி இந்து நாளிதழ். The Hindu Tamil News Daily. 14th October 2014.
Jeganathan, P. (2014). நண்டு வரைந்த அழகுக் கோலங்கள் - தி இந்து நாளிதழ் உயிர்மூச்சு இணைப்பில், ‘இயற்கையின் வாசலில்’ தொடர் எண் – 15. 14th October 2014. Nandu Varaintha Azagu Kolangal– Iyarkayin Vaasalil ArticleSeries No.15 (On Soldier Crab and its sunburst). The Hindu Tamil News Daily. 14th October 2014.
PDF, 19.9 MB
White-bellied Woodpecker, Black-rumped Flamebach, Rufous Woodpecker, Speckled Piculet, Tamil
- Poster2014Dhole or Wild DogDownload
PDF, 6.92 MB
Coordinated Hunts, Sambar, Leopard, Chital, Tamil
PDF, 32.2 MB
Two-headed Snake, Earthworms, Insect Larvae, Flattened Tail, Tamil
- Poster2014Tortoise and TurtlesDownload
PDF, 7.04 MB
Indian Pond Terrapin, Cochin Forest Cane Turtle, Travancore Tortoise, Tamil
- 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.
JPG, 422 KB
Leopards, Adaptable, Towns, Villages, Fields, Farmland, Deer, Monkeys, Stray Dogs, Livestock
PDF, 6.79 MB
White-cheeked Barbet, Coppersmith Barbet, Green Plumage, Stout Beaks
- Poster2014Dragonflies And Damselflies Of Anamalai Hillssupported by M. M. Muthiah Research FoundationDownload
PDF, 1.8 MB
Anamalai Hills, Dragonflies, Blue-tailed Yellow Skimmer (Palpopleura Sexmaculata), Ground Skimmer(Diplacodes Tri Vialis), Crimson Marsh Glider(Trithemis Aurora), Granite Ghost(Bradinopyga Germinata), Ruby Tailed Hawklet(Epithemis Marial), Pied Paddy Skimmer(Neurothemis Tullia), Trumpet tail(Acisoma Panorpoides), Emerald-banded Skimmer(Cratilla Lineata), Brown-backed Red Marsh Hawk(Orthetrum Chrysis), Black Steam Glider(Trithemis Festiva), Blue Marsh Hawk(Orthetrum Glaucum), Blue-tailed Forest Hawk(Orthetum Triangulare),Damselflies Clear-winged Forest Glory(Vestalis Gracilis), Pigmy Dartlet(Agriocnemis pygmaea), Saffron-faced Blue Dart(Psedagrion Rubriceps), Black tipped Forest Glory(Vestalis apicalis), Stream Ruby(Rhinocypha Bisignata), Yellow-striped Blue Dart(Pseudogrian Indicum), Stream Glory(Neurobasis Chinensis), Asian Slim(Aciagrion Occidentale)
- Popular Article2014ஆமைகளைக் காப்பாற்றிய குட்டி நட்சத்திரங்கள். (On saving the star tortoises by kids)தி இந்து நாளிதழ். The Hindu Tamil News Daily.
Jeganathan, P. (2014). ஆமைகளைக் காப்பாற்றிய குட்டி நட்சத்திரங்கள் - தி இந்து நாளிதழ் உயிர்மூச்சு இணைப்பில், ‘இயற்கையின் வாசலில்’ தொடர் எண் – 17. 28th October 2014. Amaigalai Kappatriya Kutti Natchathirangal– Iyarkayin Vaasalil ArticleSeries No.17 (On saving the star tortoises by kids). The Hindu Tamil News Daily. 28th October 2014.
- Journal Article2014Multi-scale factors influencing human attitudes towards snow leopards and wolves.Conservation Biology DOI: 10.1111/cobi.12320
- Book Chapter2014Managing conflicts over livestock depredation by large carnivoresIn Human-Wildlife Conflict in the Mountains of SAARC Region - Compilation of Successful Management Strategies and Practices, SAARC Forestry Centre Office Thimphu, BhutanDownload
PDF, 1020 KB
Managing wildlife-caused damage to human interests has become an important aspect of contemporary conservation management. Conflicts between pastoralism and carnivore conservation over livestock depredation pose a serious challenge to endangered carnivores worldwide, and have become an important livelihood concern locally. Here, we first review the primary causes of these conflicts, their socio-ecological correlates, and commonly employed mitigation measures. We then describe a community-based program to manage conflicts over livestock depredation by snow leopards Panthera uncia and wolves Canis lupus. A threats-based conceptual model of conflict management is presented. Conflicts over livestock depredation are characterized by complex, multi-scale interactions between carnivore and livestock behavioral ecology, animal husbandry, human psyche, culture, world-views, and socio-economic and education levels of affected peoples. A diversity of commonly employed conflict-mitigation measures is available. They aim at (i) reducing livestock depredation through better livestock herding, use of physical, chemical or psychological barriers, removal of carnivores, and use of livestock guard animals, (ii) offsetting economic losses through damage compensation and insurance programmes, and (iii) increasing peoples’ tolerance of carnivores through indirect approaches such as conservation education and economic incentives. For effective management, conflicts need to be understood along two important dimensions, viz., the reality of damage caused to humans, and the psyche and perceptions of humans who suffer wildlife caused damage. The efficacy of commonly used mitigation measures is variable. A combination of measures that reduce the level of livestock depredation, share or offset economic losses, and improve the social carrying capacity for carnivores will be more effective in managing conflicts than standalone measures