Ecosystem Management: Selected Readings by Fred B. Samson, Fritz L. Knopf PDF
By Fred B. Samson, Fritz L. Knopf
Atmosphere administration has emerged long ago a number of years because the new paradigm for handling private and non-private land. It combines the foundations of ecosystem-level ecology with the coverage necessities of source and public land administration. This number of chosen readings will function an creation to the thoughts of organic range, ecological method, biotic integrity, and ecological sustainability that underlie environment administration.
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Extra resources for Ecosystem Management: Selected Readings
Of all species breeding in northern Colorado, 82% occur in riparian vegetation (Knopf 1985). Over half of southwestern species are dependent upon riparian vegetation, and 78 (470/0) of the 160 avian species that breed in that region are restricted to it specifically (Johnson et al. 1977). In New Mexico, 46% of the species breeding in the San Juan Valley (Schmitt 1976) and 49% of the species breeding in the Gila Valley (Hubbard 1971) could disappear from the region if all riparian vegetation were lost.
Rivers are open, directional systems so protection of any segment requires control over the entire upstream network and the surrounding landscape. There is little likelihood that such protection can be given to very many streams of order 4 or higher, yet it is these streams that support the greatest diversity of fishes. Optimistically, some degree of riparian control and prevention of industrial and agricultural pollution, channelization, and impoundment may be sufficient to maintain diverse assemblages.
A. Jones, editors. Importance, preservation and management of riparian habitat: A symposium. General Technical Report RM-166. S. Forest Service, Rocky Mountain Forest and Range Experiment Station, Fort Collins, Colorado. Balda, R. P. 1975. Vegetation structure and breeding bird diversity. Pages 59-80 in D. R. Smith, editor. Symposium on management of forest and range habitats for nongame birds. General Technical Report WO-1. S. C. Blake, J. , and J. R. Karr. 1984. Species composition of bird communities and the conservation benefit of large versus small forests.
Ecosystem Management: Selected Readings by Fred B. Samson, Fritz L. Knopf