Investigation on population dynamics of Fejervarya multistriata in plantations of Fujian Province, eastern China.

From June to September 2011 and April to May 2012, we had made a preliminary investigation on the rice frog communities in different typical plantations using the “Fence with pitfall trap冶in Jiangle County of Fujian Province, eastern China and 222 rice frogs were captured. Based on snout-vent length and body weight, rice frogs were divided into adult and subadult by using cluster analysis. The variation of daily-catches, relative-fatness and weight/ length index were analysed in different months, different types of plantations and varied age of plantations. The result showed that: 1) the daily-catches and weight/ length index of rice frog in plantations decreased first and then increased from April to September, and the relative-atness had no significant changes; 2) The relative-fatness and weight/ length index of rice frog in pure plantations were higher than mixed plantations, and the daily-catches was contrary;3) The relative-fatness and weight/ length index of rice frog were growing with the age of plantations, and the daily-catches reached the highest in middle age plantations. The results can provide new ideas for protecting the species diversity in plantations and guide for changing the management mode of plantations