...Here he introducedthe Zulu military system and terrorized the peaceful andindustrious Bechuana populations...
W.E.B. Du Bois 「The Negro」
...The distributional records since the 1850's and the apparent relict populations now in existence indicate that the range of this species has since receded...
Ray D. Burkett 「Natural History of Cottonmouth Moccasin, Agkistrodon piscovorus (Reptilia)」
... Bailey (1948:215) discussed the possibility that populations of snakes may be significantly depressed because of winter kill of individuals that "hibernate" at shallow depths...
Ray D. Burkett 「Natural History of Cottonmouth Moccasin, Agkistrodon piscovorus (Reptilia)」
...Records are lacking from the drainages of the Republican, NorthCanadian, Brazos and Colorado River drainages in the High Plains,but possibly isolated populations occur in some of these also...
Henry S. Fitch 「Occurrence of the Garter Snake, Thamnophis sirtalis, in the Great Plains and Rocky Mountains」
...However, by far the most logical divisionis the Continental Divide; south of the Teton Range it constitutesa broad barrier separating eastern and western populations...
Henry S. Fitch 「Occurrence of the Garter Snake, Thamnophis sirtalis, in the Great Plains and Rocky Mountains」
...We think most, if not all, mainland populations of smallMolossus with pale-based hairs pertain to the speciesMolossus molossus, originally described from the LesserAntilles...
J. Knox Jones 「Noteworthy Records of Bats From Nicaragua, with a Checklist of the Chiropteran Fauna of the Country」
...In these cranial characters, specimens from the MesetaCentral are intermediate between the two lowland populations...
William E. Duellman 「Neotropical Hylid Frogs, Genus Smilisca」
...Both populations agree in othermorphological characters; therefore, they are here treated as geographicvariants...
John D. Lynch 「A Taxonomic Revision of the Leptodactylid Frog Genus Syrrhophus Cope」
...The two populations weredistinguished on the basis of color pattern and the size of thetympanum...
John D. Lynch 「A Taxonomic Revision of the Leptodactylid Frog Genus Syrrhophus Cope」
...Our small samples of birds and reptiles from the island show nodetectable morphological differentiation from adjacent populations...
Robert K Selander 「Vertebrates from the Barrier Island of Tamaulipas, México」
...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」
...interfusa Dwight andGriscom breeds in the west, west of stationsin Cloud, Stafford, and Clark counties; a broad zone of intergradationexists between the two named populations...
Richard F. Johnston 「The Breeding Birds of Kansas」
..."The nearest populations now are far to the north, and this jumping mouseoccupies only restricted habitats in northwestern South Dakota andadjacent regions...
Kenneth W. Andersen 「Mammals of Northwestern South Dakota」
便利!手書き漢字入力検索