Habitat Use of Crocidura tadae kurodai (Soricomorpha：Soricidae)
Date Issued
2007
Date
2007
Author(s)
Chen, Luo-Chieh
DOI
zh-TW
Abstract
Previous surveys of terrestrial fauna showed that Crocidura tadae kurodai is the most common soricomorpha species found in many types of habitat at mid to low elevation in Taiwan. In this study, we investigated patterns of microhabitat use by C. tadae in four different macrohabitat types to test the hypotheses wheather C. tadae is a habitat generalist or not. If it was a habitat generalist, does C. tadae prefer to use some microhabitat factors which are commonly found in all macrohabitat types, or does it adjust the use of different microhabitat factors according to their availability in each macrohabitat types. Between April 2004 and June 2005, we trapped C. tadae monthly during wet and dry season by pitfall traps and modified Sherman’s traps in four macrohabitat types in Bailan, Hsinchu. In addition, we measured the microhabitat factors in all macrohabitat types, to compare the differences of microhabitat at each trap site within and between macrohabitat types.
Our results revealed that C. tadae could be captured in board-leaved forest, conifer forest, bamboo forest and orchard, but it preferred conifer forest which has more fallen logs and higher coverage of fallen logs, and avoided board-leaved forest which has more rocks and exposure surface. Within each macrohabitat type, C. tadae preferred some microhabitat factors commonly found in different macrohabitat types, including whole effects of fallen logs, higher coverage of understory and litter layer. However, C. tadae also can adjust its microhabitat use based on the availability of each microhabitat factor. Our study revealed that C. tadae could use many environment resources efficiently within each macrohabitat, and distribute in many macrohabitat types at mid to low elevation, but the abundance of C. tadae in each macrohabitat type was affected by the availability of its preferred microhabitat factors.
Subjects
棲地利用
可獲得性
巨棲地
微棲地
Crocidura tadae kurodai
habitat use
availability
macrohabitat
SDGs
Type
other