Wildlife Habitats Of The North Coast Of California

Author : Janet L. Ohmann
Publisher : Forgotten Books
ISBN 13 : 9780332591650
Total Pages : 66 pages
Book Rating : 4.5/5 (916 download)

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Download or read book Wildlife Habitats of the North Coast of California written by Janet L. Ohmann and published by Forgotten Books. This book was released on 2017-12-14 with total page 66 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Wildlife Habitats of the North Coast of California: New Techniques for Extensive Forest Inventory Chamise-redshank is the most abundant shrub type outside parks and National For ests. Structure of this habitat is quite homogeneous, with all area classified as mature and dense. The mixed chaparral type is more variable. The level-one models of the whr Program were used to translate habitat classifica tions of field plots into estimates of potentially suitable habitat for reproduction and feeding for eight wildlife species: Pacific giant salamander, California quail, northern spotted owl, pileated woodpecker, dusky flycatcher, fisher, mountain lion, and black tailed deer. Outside parks and National Forests, about half the forest land has high or medium suitability for reproduction and feeding for black-tailed deer and mountain lion, which use shrubby, open stages of many vegetation types. About one-third of the area rates high or medium for reproduction and feeding for California quail and for spotted owl. Only 14 percent of the forest is of high or medium suitability for repro duction and feeding for pileated woodpecker. For fisher, 25 percent of the area is of high or medium suitability for reproduction and 40 percent for feeding. Sixty-four per cent of the forest area provides high or medium feeding habitat for Pacific giant sala manders. Only 3 percent of the area has high or medium suitability for reproduction and feeding for dusky flycatchers, which prefer higher elevation forest. Potentially suitable habitat for these species in parks and National Forests is probably quite different. The estimates of habitat area indicate general availability of these vegetation condi tions at a broad scale along the north coast. The data can be used to assess poten tial impacts of proposed actions affecting broad-scale alterations of habitat. The, habitat-suitability ratings are best interpreted as relative probabilities of occurrence of a species in different habitats; area estimates of suitable habitat are appropriately used in regional-level predictions of species occurrence and habitat suitability. Many factors not accounted for in the level-one models affect actual animal occurrence and abundance, including special habitat elements, the areal extent and spatial arrange ment of habitat, and human activity. Adjusting for the effects of these factors would reduce the estimated area of suitable habitat. Density of snags suitable for pileated woodpecker nesting, for example, meets the required 15 per 40 hectares in stands rated as high suitability for reproduction, but not in stands rated as medium or low. Large snags are most abundant in dense, pole-sized and larger stands in the redwood type and in large-freed stands of all densities in the Douglas-fir type. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.