A Silver-Lining in Alternanthera philoxeroides Invasion: Exploring Sustainable Alternative Use in the Tropics

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Title A Silver-Lining in Alternanthera philoxeroides Invasion: Exploring Sustainable Alternative Use in the Tropics
 
Creator Chatterjee, Anindita; 1Agricultural & Ecological Research Unit, Biological Sciences Division, Indian Statistical Institute, 203, B.T. Road, Kolkata 700108, West Bengal, India
Sudarshan, M.; 2UGC-DAE Consortium for Scientific Research, Kolkata Centre, Kolkata 700098, West Bengal, India
Dewanji, Anjana; 1Agricultural & Ecological Research Unit, Biological Sciences Division, Indian Statistical Institute, 203, B.T. Road, Kolkata 700108, West Bengal, India
 
Subject plant ecology
Alligatorweed; Biological Invasion; Edxrf; Invasive Plant; Management; Supplementary Food; Sustainable
biological invasion; utilisation
 
Description Tropical freshwater ecosystems;an indispensible means of sustenance, food and livelihood for millions of poor people of the developing world;are prone to massive biodiversity declines due to huge pressures of over-exploitation and invasive species.Without mitigation of the problem of biological invasion of the tropics, half the world's population will be soon facing serious food shortages.In an attempt to bridge the gap between successful management of an invasive plant, and a sustainable source of supplementary food for the marginalized population, this pilot study investigated the potential utilizationof the widely prevalent invasive Alternanthera philoxeroides (Alligatorweed) as a leafy vegetable. Questionnaire-based field-surveys revealed a much higher section of rural populace utilized Alligatorweed as food/fodder as compared to the urban/semi-urban populace. ED-XRF analysis of young ‘edible’ shoots of Alligatorweed revealed it to have good concentration of essential elements likepotassium, calcium, iron, zinc and manganese. However, significant positive correlations of manganese (p<0.01) between Alligatorweed and its soil-substratum indicated its metal hyper-accumulative potential. Hence, Alligatorweed should be used for human-consumption only when it is harvested from non-polluted eco-regions. This study explores a positive utility of the invasive Alligatorweed and in turn indicates its possible managerial approach. In a country where a large populace is mal-nourished, consumption of Alligatorweed as supplementary-vegetable can not only help in controlling its invasion into our pristine aquatic/wetland ecosystems, but also help in generation of cheap and sustainable source of supplementary food for the marginalized section of our country.
 
Publisher NATIONAL INSTITUTE OF ECOLOGY
 
Date 2017-09-29
 
Type info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
 
Format application/pdf
 
Identifier https://nieindia.org/Journal/index.php/ijees/article/view/1225
 
Source International Journal of Ecology and Environmental Sciences; Vol 43, No 3 (2017); 229-238
 
Language eng
 
Relation https://nieindia.org/Journal/index.php/ijees/article/view/1225/360
 
Coverage India
 
Rights The copyright of the journal vests totally with the NATIONAL INSTITUTE OF ECOLOGY.This Journal is registered at the Copyright Clearance Center Inc. (CCC), 222 Rosewood Drive, Suite 910, Danvers, MA 01923, USA. The copyright owner consents that in the U.S.A. copies of the articles may be made for personal or internal use, or the personal or internal use of specific clients, on payment of a fee of US $ 25.00 per article per copy directly to CCC, for copying beyond that permitted by sections 107 or 108 of the US Copyright Law. This consent does not extend to other kinds of copying, such as copying for general distribution, for advertising or promotional purposes, for creating new collective works or for resale. The ONLINE OPEN ACCESS Content of the Journal is only for use of individuals. ANY person or publisher who dowloads the articles and reproduces them in any form- electronic, on a CD/DVD or in print for sale and commercial use shall be prosecuted.
 

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