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Ragavan P.,Andaman and Nicobar Island Forest Plantation and Development Corporation Ltd | Mohan P.M.,Pondicherry University | Coomar T.,Andaman and Nicobar Island Forest Plantation and Development Corporation Ltd | Ragavan A.,Andaman and Nicobar Island Forest Plantation and Development Corporation Ltd
Tropical Ecology | Year: 2013

Leaf reddening is well documented in terrestrial angiosperms, but has rarely been reported in seagrasses. So far leaf reddening of seagrasses has been documented in 15 seagrass species. For the first time here we recorded the reddening of two seagrass species (Halophila ovalis and Thalassia hemprichii) from Andaman and Nicobar Islands. Leaf reddening patterns varied from small-patched to band-like on the centre of the leaves. Similar to terrestrial angiosperms, leaf reddening in seagrasses may relate to enhanced production of anthocyanins after exposure to one or more stressors. © International Society for Tropical Ecology. Source


Ragavan P.,Pondicherry University | Saxena M.,Andaman and Nicobar Island Forest Plantation and Development Corporation Ltd | Saxena A.,Indira Gandhi National Forest Academy | Mohan P.M.,Pondicherry University | And 3 more authors.
Indian Journal of Geo-Marine Sciences | Year: 2014

Actual number of mangrove species found in the Andaman and Nicobar Islands outnumber the number of species recorded to occur there. Present study consists reviewing the literature on mangrove floral composition and distribution as well as highlighting the causes of such apparently large species numbers and apparently incorrect identification of some of the mangrove species in the Andaman and Nicobar islands. Mangrove survey indicates that there are 33 exclusive 'mangrove species', at least 27 'mangrove associates' that occur on the islands. Source

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