ASSESSMENT OF A NONDESTRUCTIVE METHOD FOR ESTIMATING BROWSE USE

被引：5

作者：

PITT, MD ^{[1
]}

SCHWAB, FE ^{[1
]}

机构：

[1] LABRADOR COMMUNITY COLL, LABRADOR CITY A2V 2J8, NEWFOUNDLAND, CANADA

来源：

JOURNAL OF WILDLIFE MANAGEMENT | 1990年 / 54卷 / 01期

关键词：

D O I：

10.2307/3808918

中图分类号：

Q14 [生态学（生物生态学）];

学科分类号：

071012 ; 0713 ;

摘要：

Measured twig basal diameters, diameters at point of browsing, and diameters of unbrowsed twig tips on 6 shrub species to estimate browse use without regression equations or relying upon before and after browsing measurements. Stimulated browsing of twigs was predicted accurately for paper birch Betula papyrifera, red-osier dogwood Cornus stolonifera, prickly rose Rosa acicularis and Scouler's willow Salix scouleriana. The technique adequately predicted leaf use only for Douglas maple Acer glabrum. Minimum sample sizes to estimate total browsing of twigs appear feasible, if maximum error is expressed as percentage points around average use, rather than as percentage of average use. -Authors

引用

页码：175 / 179

页数：5

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