TECHNIQUE USING THERMAL INFRARED-IMAGING FOR ESTIMATING POPULATIONS OF GRAY BATS

被引：35

作者：

SABOL, BM ^{[1
]}

HUDSON, MK ^{[1
]}

机构：

[1] ALABAMA DEPT CONSERVAT & NAT RESOURCES,DIV GAME & FISH,NONGAME WILDLIFE PROGRAM,MONTGOMERY,AL 36130

来源：

JOURNAL OF MAMMALOGY | 1995年 / 76卷 / 04期

关键词：

BATS; DIGITAL PICTURE PROCESSING; POPULATION ESTIMATION; THERMAL INFRARED IMAGING;

D O I：

10.2307/1382618

中图分类号：

Q95 [动物学];

学科分类号：

071002 ;

摘要：

Estimating size of populations of bats during nocturnal emergence from caves relies on techniques of visual counting that are subjective and highly dependent on skill of the observer. A noninvasive technique, using thermal infrared-imaging and digital picture processing, was developed and tested at two caves in northern Alabama. A comparison of estimates between this technique and that of a skilled observer with a night-vision scope revealed a difference of <6%. This semi-automated technique and its applicability are discussed.

引用

页码：1242 / 1248

页数：7