Patterns of Crop Foraging by Asian Elephants (Elephas maximus) in Central Kerala, India
摘要
Crop foraging by wild Asian elephants (Elephas maximus) is a growing concern in Central Kerala, India. This study was carried out in Thrissur district, from April 2009 to March 2013, with the aim to assess the pattern of crop foraging by wild elephants and to find the environmental factors associated with these patterns. Quadrats were laid in the damaged crop fields for quantifying the area, and logistic regression analysis was run for identifying factors associated with the patterns of encountering the species in human habitations. Plantain (Musa paradisiaca) (74.11%) was the main food of elephants in the fringe areas of the forest. It was cultivated in between young rubber plants (Hevea brasiliensis) (below 4 years). Crop foraging was at its peak during the northeast monsoon (September to November). Marginal farmers harvest plantains in the above-mentioned period due to the Onam festival in Kerala. While consuming plantains, the unpalatable young rubber plants were also destroyed. As the market price of rubber increased, farmers were expanding the cultivation of rubber, followed by cultivating plantain in between the young rubber plants. The cultivation of plantains in the immediate fringe areas of the forest is the cause of increased human-elephant interactions in the area.