Download PDF by Blair A. Csuti: Atlas of Oregon wildlife: distribution, habitat, and natural

By Blair A. Csuti

ISBN-10: 0870713957

ISBN-13: 9780870713958

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Extra info for Atlas of Oregon wildlife: distribution, habitat, and natural history

Example text

This program, known as "Gap Analysis," is intended to provide wildlife managers with the information they need to anticipate and prevent loss of biodiversity. Details of the methods of Gap Analysis are presented in Scott et al. edu/gap. While the information gathered for Gap Analysis is maintained as digital data in a geographic information system, this atlas provides a larger audience with access to current knowledge about Oregon's wildlife. Only limited detail can be shown on state maps small enough to fit on an atlas page, but these should provide the user with a guide to where species can be expected to occur in appropriate habitats within Oregon's varied landscapes.

Habitat: The Pacific giant salamander is found in humid mixed conifer and deciduous forests and riparian zones, occurring as high as 6,000 feet. Downed logs are required for shelter and foraging. Larvae occupy cold, clear water of streams, rivers, lakes, and ponds. Reproduction: The reproductive biology of this species is poorly known. It probably breeds in the spring. Eggs are usually laid in deep-water nest chambers, where the female remains until the eggs hatch. In coastal populations, eggs take about 200 days to hatch.

National maps based on these records have been compiled by Root (1988). Because of the uncertain nature of winter distributions, we have not attempted to map winter ranges of birds using habitat associations. Maps of winter distribution of birds are presented in Appendix III in a simplified, small-scale format. These maps should provide users with sufficient information to determine which birds might be present in a part of the state during the course of a winter. This level of detail is consistent with the dynamic nature of winter bird distributions.

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Atlas of Oregon wildlife: distribution, habitat, and natural history by Blair A. Csuti

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