Use of Artificially Created Douglas-Fir Snags by Cavity-Nesting Birds
نویسندگان
چکیده
منابع مشابه
Use of Arbutus menziesii by Cavity-nesting Birds
As part of a larger study of wildlife habitat associations in Douglas-fir (Pseudotsuga menziesii) forests of northwestern California, I recorded characteristics of nest sites used by 16 species of cavity-nesting birds. Pacific madrone (Arbutus menziesii) contributed only 8% of the basal area of the stands I studied, but 24% of all cavity nests were in madrone. Although nests were distributed am...
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We compared the density of snags, snags with cavities, and cavity-nesting bird use at two sites in northern California: Blacks Mountain Experimental Forest, a site with large trees and large snags because of protection from logging, contrasted with the Goosenest Adaptive Management Area, where a century of logging left this forest with few large trees and snags. Indeed, there was a threefold di...
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--The habitat requirements of open nesting birds were examined in 19, five hectare, plots arranged along an altitudinal gradient in western Montana. Seven, mature forest birds were examined in detai 1. Percent shrub and low canopy cover {0.5-1.5m), mid-canopy cover {8-25m), and the number of large diameter stems {25-50 em dbh) were of major importance to this avian co11111unity. Increased avian...
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Primary cavity-nesting birds play a critical role in forest ecosystems by excavating cavities later used by other birds and mammals as nesting or roosting sites. Several species of cavity-nesting birds are non-migratory residents and consequently subject to winter conditions. We conducted winter bird counts from 1998 to 2000 to examine the abundance and habitat association of cavity-nesting bir...
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ژورنال
عنوان ژورنال: Western Journal of Applied Forestry
سال: 1997
ISSN: 0885-6095,1938-3770
DOI: 10.1093/wjaf/12.3.93