Interesting feeding behaviour of the House Sparrow
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چکیده
منابع مشابه
Ontogeny of hemoglobin in the house sparrow.
SUMMARY A 'switchover' from synthesis of predominantly embryonic hemoglobin to synthesis of predominantly adult hemoglobin occurs during differentiation of the house sparrow. This 'switchover' is demonstrated by a change in electrophoretic pattern generally comparable with that of the chicken, slightly different from those of the duck and man, and, perhaps, dissimilar to that of the red-wing bl...
متن کاملGeographic Variation in Wing-loading of the House Sparrow
Intraspecific variation in size of widely distributed birds often agrees with modern interpretation of Bergmann’ s Rule; that is, size is correlated with a combination of climatic variables that includes temperature and/or moisture (James 1968, 1970, Power 1969). N or th ern races of birds are frequently larger (Mayr 1963:320), but the adaptive significance of increased size has been widely deb...
متن کاملHow the house sparrow Passer domesticus absorbs glucose.
According to the hypothesis that most glucose absorption occurs passively across intestinal tight junctions (paracellular absorption), one would predict fairly similar rates of in vivo absorption of L-glucose, the stereoisomer of D-glucose that is absorbed only passively and is not catabolized, and of 3-O-methyl-D-glucose (3OMD-glucose), the D-glucose analogue that is actively and passively tra...
متن کاملUropygial gland and bib colouration in the house sparrow
Birds frequently signal different qualities by plumage colouration, mainly during mating. However, plumage colouration is determined during the moult, and therefore it would indicate the quality of individual birds during the moult, not its current quality. Recent studies, however, suggest that birds could modify plumage colouration by using cosmetic preen oil produced by the uropygial gland. I...
متن کاملCaptivity induces hyper-inflammation in the house sparrow (Passer domesticus).
Some species thrive in captivity but others exhibit extensive psychological and physiological deficits, which can be a challenge to animal husbandry and conservation as well as wild immunology. Here, we investigated whether captivity duration impacted the regulation of a key innate immune response, inflammation, of a common wild bird species, the house sparrow (Passer domesticus). Inflammation ...
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ژورنال
عنوان ژورنال: Blue Jay
سال: 1961
ISSN: 2562-5667,0006-5099
DOI: 10.29173/bluejay2214