Temperature profoundly influences physiological responses in animals, primarily due to the
effects on biochemical reaction rates. Since physiological responses are often exemplified …

In this review I summarize the history of the subspecies concept and the major debates and
issues surrounding its use, with an emphasis on ornithology, in which the concept …

This study was conducted to characterize local chickens in the northwest of Algeria based
on some phenotypic traits and to look at prediction of body weight from morphometric …

Aim To test whether intra‐and interspecific patterns in body mass along elevational
gradients follow Bergmann's rule for a subset of tropical montane passerines. Location …

Consistent responses by various organisms to common environmental pressures represent
strong evidence of natural selection driving geographical variation. According to Bergmann's …

Abstract The Laguna de Tagua Tagua has yielded two important late Pleistocene
archaeological sites, Taguatagua 1 and Taguatagua 2, in which a clear early human …

Geographic variation in body size has been studied in the context of Bergmann's and Allen's
ecogeographic rules, which relate changes in body and appendage sizes to temperature …

Background Geographic variation in body size is assumed to reflect adaptation to local
environmental conditions. Although Bergmann's rule is usually sufficient to explain such …

Hypoxia is one of the most important factors affecting survival at high altitude, and the major
hemoglobin protein is a likely target of selection. We compared population genetic structure …

Spatial variation in the environment can lead to divergent selection between populations
occupying different parts of a species' range, and ultimately lead to population divergence …