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Port Blair, India

Ragavan P.,Institute of Forest Genetics and Tree Breeding | Ravichandran K.,A and N Islands | Jayaraj R.S.C.,Institute of Forest Genetics and Tree Breeding | Mohan P.M.,Pondicherry University | And 3 more authors.
Biodiversitas | Year: 2014

During the recent field survey it was found that among 15 rare mangroves in Andaman and Nicobar Islands, ten rare species i.e. Acanthus ebracteatus, Acrostichum speciosum, Bruguiera cylindrica, Cynometra iripa, Cynometra ramiflora, Lumnitzera racemosa, Rhizophora hybrids, Sonneratia alba, Sonneratia griffithii and Xylocarpus mekongensis are present in Andaman and Nicobar islands. In addition to Acanthus volubilis, Brownlowia tersa and Sonneratia ovata are recorded after their first report. Source


Ragavan P.,Institute of Forest Genetics and Tree Breeding | Ravichandran K.,A and N Islands | Mohan P.M.,Pondicherry University | Sxaena A.,Indira Gandhi National Forest Academy | And 2 more authors.
Biodiversitas | Year: 2015

Excoecaria indica (Wild.) Muell.-Arg was recorded from Middle Andaman and Great Nicobar Island representing a new addition to the mangrove flora of the, Andaman and Nicobar islands. This species is characterised by its thorny trunk, crenulatelanceolate leaves and cherry-sized green fruits containing three seeds. Information about E. indica is inadequate, and it is recognized as data deficient species. Further studies and conservation measures are imperative for managing the mangrove diversity of the islands with regards to this species. © 2015, Society for Indonesian Biodiversity. All rights reserved. Source


Ragavan P.,Pondicherry University | Mohan P.M.,Pondicherry University | Ravichandran K.,A and N Islands | Saravanan S.,Institute of Forest Genetics and Tree Breeding
PhytoKeys | Year: 2015

Rhizophora mucronata var. alokii (Rhizophoraceae), a new variety of Rhizophora from the Andaman and Nicobar Islands, India, is described and illustrated. The new variety is remarkable in having four stamens, laterally folded leaves, a short peduncle, thick leathery petals, and a four-sided ovary with a sessile style. A key for the species of Rhizophora of the Andaman and Nicobar Islands is also provided. © P. Ragavan et al. Source


Senthil Kumar S.,A and N Islands | Sivaperuman C.,Zoological Survey of India andaman and Nicobar Regional Center | Yadav B.P.,A and N Islands
Herpetological Bulletin | Year: 2012

The Andaman and Nicobar Islands comprise a chain of 349 major islands and 223 islets and rocky outcrops, extending over 800km2 in the Bay of Bengal between latitudes 06° and 14° N and longitudes 92° and 94° E. The archipelago has a total land area of 8249 km2 and a coastline of 1962 km. The Saltwater Crocodile Crocodilus porosus is a common species throughout the Andaman and Nicobar Islands. It can be encountered in open sea, near the shore, mangrove creeks, freshwater rivers and in swamps. Human-animal conflicts have increased with exploitation of natural forest resources in India. The growth of human population, intensified land-use, increased livestock population e.g. goat, cattle, dog, poultry etc., human pressure, modification of natural resources, habitat fragmentation, and lack of foresight in the implementation of policies are some of the factors behind the current disputes. Crocodile attacks on human beings and livestock have been reported since the early 1970s in the Andaman and Nicobar Islands. Recently, a crocodile killed a woman snorkelling at the famous Radha Nagar Beach, Havelock forest division. Immediately, the Department of Environment and Forests of the Andaman and Nicobar Administration urged locals to be vigilant of the presence of crocodiles around Radha Nagar Beach, and a warning sign board was placed on the beach. The Forest Department decided to capture the problematic crocodile, and gathered a team to do so. The captured crocodile was transported and released into the mini zoo at Port Blair, and peace was restored at Radha Nagar Beach. In such a situation, removal of the problem crocodile might provide a temporary fix, but another male will eventually dominate the creek, and may again be a threat to tourism. Possible reasons for crocodile attack on humans include defending individual territories, attractive food-sources such as livestock and other domestic animals, and dumping of high-protein waste food materials on banks or beach areas. The indigenous technology developed for capturing the crocodile is discussed in this paper. Source


Kumar S.S.,A and N Islands | Saxena A.,A and N Islands | Sivaperuman C.,Zoological Survey of India andaman and Nicobar Regional Center
Herpetological Bulletin | Year: 2011

Captive breeding of a wild reticulated python Python reticulatus was conducted in the Mini Zoo at Port Blair, Andaman and Nicobar islands during 2010. The female laid three eggs and two hatched. The details of breeding activity are discussed in this paper. Source

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