Individual Identification and Population Quantitative Characteristics of Asian Elephant in the Wild Elephant Valley,Xishuangbanna
This study focuses on the wild Asian elephant(Elephas maximus)that appeared in the Wild Elephant Valley,Mengyang,Xishuangbanna.The imaging data collected from 2002 to 2023 were used to carry out individual identification of Asian elephants based on morphological features,and a total of 152 individuals were identified.The quantitative character-istics of the population were also analyzed.The number of Asian elephant population in this area increased from 36 in 2002 to 112 in 2023,and the main increase was from birth rather than migration,with an average annual birth rate of 8.29％and an average annual population growth rate of 5.78％.The majority of individuals in this population are minors,making it a growing population.For the population in 2023,the proportion of males was slightly higher than females at the young age,but as the age increased,the male ratio decreased and eventually adult females outnumbered adult males.Analysis of some reproductive parameters for wild female Asian elephants revealed that this wild population was in good reproductive condition.The results of this study show that Asian elephants in Mengyang area of Xishuangbanna,Yunnan,China have been effectively protected against global Asian elephant population decline.
Asian elephant(Elephas maximus)Individual identificationPopulation sizePopulation structureYunnan China
万方数据
维普
