The Study on Habitats Distribution of Exotic Invasive Ants in Taiwan by Using Bait Traps

• Main Authors: Po-Cheng Hsu, 許伯誠
• Other Authors: Chung-Chi Lin
• Format: Others
• Language: zh-TW
• Published: 2013
• Online Access: http://ndltd.ncl.edu.tw/handle/36134228757696837425

碩士 === 國立彰化師範大學 === 生物學系 === 101 === The study surveyed the distribution of exotic invasive ants and their competition with native dominant ants at 55 plots, 16 counties in Taiwan by using bait traps from September 2010 to March 2013. The study also surveyed annual change of the individuals and species number for exotic invasive ants by using bait traps in northern Baguashan Tableland Changhua once a month from September 2011 to September 2012. A total of 64 ant species with 52,828 individuals in 30 genera belonging was collected from September 2010 to March 2013, and 10 ant species was listed as exotic invasive ants in Global Invasive Species Database. There were distributions of exotic invasive ants in all regions of noth, central, south and east Taiwan, and 4 exotic invasive ants species were collected in all regions in Taiwan: Paratrechina longicornis, Pheidole megacephala, Anoploepis gracilipes and Tapinoma melanocephalum. Bait exclusive rates of the 10 exotic invasive ants species were 60% or more and they had good feeding competitive advantage. The 4 exotic invasive ants species had competitive relationship with native dominant ants species: Pheidole formosensis. The number of individuals for exotic invasive ants were affected by the changes of monthly temperature and cumulative rainfall in northern Baguashan Tableland Changhua, but the number of distribution was not. The numbers of individuals and distribution for exotic invasive ants both were affected by the changes of monthly temperature and cumulative rainfall. It affected the competition in invasive and native ants. Although the native dominant ants had better dominance in distribution and abundance in Taiwan, it was dangerous for the native dominant ants because they were threatened by habitat fragmentation with human development.