VARIATION IN HABITAT USE AND PREY SELECTION BY YUMA BATS, MYOTIS-YUMANENSIS

被引：55

作者：

BRIGHAM, RM

ALDRIDGE, HDJN

MACKEY, RL

机构：

[1] AFRC,SWINDON SN2 1UH,ENGLAND

[2] UNIV CALGARY,DEPT BIOL SCI,DIV ECOL,CALGARY T2N 1N4,ALBERTA,CANADA

来源：

JOURNAL OF MAMMALOGY | 1992年 / 73卷 / 03期

关键词：

MYOTIS; HABITAT USE; PREY; BRITISH-COLUMBIA;

D O I：

10.2307/1382036

中图分类号：

Q95 [动物学];

学科分类号：

071002 ;

摘要：

The purpose of our study was to assess variation in habitat use and prey selection by Myotis yumanensis in British Columbia. In particular we tested the hypothesis that habitat use and resulting prey choice are constant among different reproductive and age classes. We light tagged 115 individuals and observed their foraging activity for a total of 218 min on 16 nights from May to September 1989. The four reproductive and age classes (pregnant, lactating, post-lactating, juvenile) all predominantly foraged within open, uncluttered habitats over land and low over water. Dietary variation suggests this species forages opportunistically on aquatic insects with changes in diet reflecting changes in availability.

引用

页码：640 / 645

页数：6

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