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Title:An Ornithological Cross-Section of Illinois in Autumn
Author(s):Forbes, Stephen Alfred
species ecology
Illinois autumn
Abstract:The subject of the relations of interaction between organisms and their environment, animate and inanimate, which goes by the name of ecology, may be studied with reference to the welfare of species- or to that of the general assemblage of organisms to which the species belong. The ecology of a species is special ecology; that of the assemblage is a phase or division of general ecology—more or less general according to the size and contents of the assemblage considered. In special ecology every ecological factor, every feature of the environment, is valued according to its importance to the species; in general ecology the various ecological factors are valued according to their significance in the general system of life. In special ecology the species is the all-important, dominating center; in general ecology each species takes its appropriate place—dominant, important, subordinate, or insignificant—according to its dynamic value as a part of the whole.
Issue Date:1907
Publisher:Champaign : Illinois Natural History Survey
Series/Report:Illinois Natural History Survey Bulletin; v. 007, no. 09
Rights Information:Copyright 2009 University of Illinois Board of Trustees. All rights reserved.
Date Available in IDEALS:2014-10-08

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