...There was a stern will, an iron-like reality, about this Gore, which would have easily made him the chief of a band of pirates, had his environments been favorable to such a course of life... 
Frederick Douglass 「My Bondage and My Freedom」
...If, now, we turn to consider his inbred traits, those the result ofexperience, conditions and environments, we find that they exist mainly asdeficiencies and deformities...
Booker T. Washington, et al. 「The Negro Problem」
...This is evidence of meaningful adaptation of the NorthAmerican populations to environments in which they now live, andcontinued use of P...
Richard F. Johnston 「The Breeding Birds of Kansas」
...We are firmly convincedthat it is better to describe a great number of habitats ratherthan to lump different kinds of environments together...
L. R. Dice 「Notes on the Mammals of Gogebic and Ontonagon Counties, Michigan, 1920」
...This seems to supportDurrant's observation (1952:496) that "the greatest range ofmorphological variation is in animals from the least stable environments...
Phillip M. Youngman 「Geographic Variation in the Pocket Gopher, Thomys bottae, in Colorado」
...In the preceding section on the description of the Isthmus ofTehuantepec I have outlined the major environments in the region...
William E. Duellman 「A Distributional Study of the Amphibians of the Isthmus of Tehuantepec, Mexico」
...To these wide-rangingspecies the diversified environments of the isthmus do not present abarrier to distribution...
William E. Duellman 「A Distributional Study of the Amphibians of the Isthmus of Tehuantepec, Mexico」
...Much of the evidence of such drasticvertical shifts in environments is based on the presence ofPleistocene montane glaciers on Mexican volcanoes (White, 1956) andChirripo in Costa Rica (Weyl, 1955)...
William E. Duellman 「A Distributional Study of the Amphibians of the Isthmus of Tehuantepec, Mexico」
...During Wisconsin time, climate probably fluctuated less thanduring previous glaciations; probably no montane environments, exceptcloud forest, were represented in the isthmus during the Wisconsin...
William E. Duellman 「A Distributional Study of the Amphibians of the Isthmus of Tehuantepec, Mexico」
...This indicates that thelowland environments and their inhabitants have been isolated from oneanother for a shorter time than have the highland environments andtheir inhabitants...
William E. Duellman 「A Distributional Study of the Amphibians of the Isthmus of Tehuantepec, Mexico」
...Plectrohyla lives in mountain streams in theChiapan-Guatemalan highlands; the Hyla robertsorum-pachyderma-crassacomplex inhabits similar environments in the Sierra Madre Oriental inMéxico...
William E. Duellman 「A Review of the Frogs of the Hyla bistincta Group」
...The species also occurs in theCintalapa Valley (Atlantic drainage) in southwestern Chiapas () Thedistribution seems to be limited on the northwest and southeast by arid environments...
William E. Duellman 「Middle American Frogs of the Hyla microcephala Group」
...Many published statements on Rhabdoderma, a related genus,indicate both marine and fresh-water environments...
Joan Echols 「A New Genus of Pennsylvania Fish (Crossoperygii, Coelacanthiformes) from Kansas」
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