Abstract
The Pandanaceae in India are represented by three genera: Pandanus Parkinson (distributed in South and Northeast India and Andaman and Nicobar Islands), Benstonea Callm & Buerki (distributed in South and Northeast India) and Freycinetia Gaudich from Andaman and Nicobar Islands. A detailed survey was carried out from November 2007 to February 2013 along the Peninsular India, North eastern India and Andaman Islands and conservation status of Indian Pandanaceae species was determined following IUCN Red List Categories and Criteria (2001). The assessment indicated that, among the 19 Indian Pandanaceae members, 6 species are falling under threatened category. P. palakkadensis and P. mangalorensis falls under Critically Endangered, P. unguifer and P. martinianus under endangered and P. diversus and B. thwaitesii under vulnerable category. P. furcatus, P. unipapillatus, P. odorifer, P. kaida, P. leram, P. nepalensis and B. foetida, F. sumatrana and F. rigidifolia fall under Least Concern category. P. emarginatus under Data Deficient category and P. amaryllifolius, P. sanderi and P. dubius as exotic species. Based on our study, we recommend 6 threatened species to include in the IUCN Red List.
Highlights
At global level, India shares 2.4% of the land area with about 7% - 8% of total recorded species of the world, in which about 33% of the flowering plants are recorded as endemic [1]
Extent of occurrence (EOO, minimum convex polygon containing all points of occurrence) and area of occupancy (AOO, area estimated by superimposing a grid onto occurrence points and calculating the cumulative area of cells occupied by a species) were determined
It has an extent of occurrence (EOO) is
Summary
India shares 2.4% of the land area with about 7% - 8% of total recorded species of the world, in which about 33% of the flowering plants are recorded as endemic [1]. Callmander et al [6] assessed Malagasy Pandanaceae for its conservation status based on application of the methodologies proposed by Schatz et al [7], Willis et al [8], a 3 × 3 km grid cell size and a 3 × 3 km grid incorporating field observations. From these four methods, they suggested that 3 × 3 km grid with field observations is the best method for evaluating Pandanaceae species. Conservation measures for the threatened species have been suggested
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