Why does population density matter and how to estimate it? Using ferret-badger, a principle reservoir of rabies in Taiwan, as an example

in International Symposium (Abstract oral presentation), 國際研討會(摘要口頭發表)
標題Why does population density matter and how to estimate it? Using ferret-badger, a principle reservoir of rabies in Taiwan, as an example
出版類型國際研討會(摘要口頭發表)
出版年度2015
AuthorsChen-Chih Chen, 陳貞志, & PEI JAI CHYI 裴家騏
出版日期Oct 18 2015 12:0
會議地點Yangon
其他編號0000
中文摘要

Abstract
During the rabies outbreak in 2013-2014, our surveillance in the Luanshan and
Chenggong area, Coastal Mountain Range, Taitung County, found a severe population
impact of rabies on ferret-badger population. However, the relationship between
population density of reservoir and the transmission of rabies is remained unclear and
it is a critical information for disease management and control. In this study, we
improved the efficiency of ferret-badger trapping and significantly increased the
capture rate of ferret-badger compared to the study before. The improved capture rate
could largely contribute to rabies control measures, such as oral vaccine strategy and
rabies surveillance. We then conducted a standard method for estimating the absolute
population abundance of ferret-badger with the “mark-resight model” in the study
area of Shan-ping, Kaohsiung city. Estimated absolute population abundance (AA)
was used to compare with the photographic rate (photographs per sampling time; PR).
Our initial data found that PR was not correlated with the AA. It is, therefore,
necessary to be aware when using PR as an indicator of population abundance. The
estimation of PR is relatively easy to conduct, however, for oral vaccine or other
rabies control measures, the accurate calibrating of PR to AA will be needed. Rabies
transmission is highly related with reservoir density. By integrating population density
monitoring and rabies surveillance as shown in our research, we will be able to clarify
the relationship between reservoir density and rabies transmission in Taiwan. In
addition, we can establish the correlation between PR and AA and apply it for rabies
control. Those are crucial information for strategy development for rabies control and
wildlife conservation.

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