...Theeconomic and ecologic significance of insects in the diet of birds isoften oversimplified...
Dwight Platt 「Food of the Crow, Corvus brachyrhynchos Brehm, in South-central Kansas」
...Therefore, in its ecologic relationships with manyother species, it is a density dependent predator...
Dwight Platt 「Food of the Crow, Corvus brachyrhynchos Brehm, in South-central Kansas」
..." At least in this type of environment, an extension or expansion of the ecologic habits of the related types takes place when some species are absent...
Emil K. Urban 「Birds from Coahuila, Mexico」
...These other species thus enjoy an ecologic freedom and can expand their niches in the absence of related types of similar ecologic scope...
Emil K. Urban 「Birds from Coahuila, Mexico」
...) listed other birds that have expanded their ecologic scope; his work should be referred to for further details...
Emil K. Urban 「Birds from Coahuila, Mexico」
...Within thesezones certain ecologic communities can be recognized; these representseveral biotic provinces...
Terry A. Vaughan 「Mammals of the San Gabriel Mountains of California」
...In the juniper belt the juniper tree is of marked ecologic significance;the distribution of Peromyscus truei and Neotoma fuscipesis determined here by the presence of junipers...
Terry A. Vaughan 「Mammals of the San Gabriel Mountains of California」
...The ecologic niche of the brush rabbit is in brush where theplants form continuous thickets with little open ground...
Terry A. Vaughan 「Mammals of the San Gabriel Mountains of California」
...They may thus be a factor in ecologic succession,tending to improve the character of the soil and adapt itto another stage...
Charles T. Vorhies and Walter P. Taylor 「Life History of the Kangaroo Rat」
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