On the lookout for danger: House Sparrow alert distance in three cities
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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 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...
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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...
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this thesis is based upon the works of samuel beckett. one of the greatest writers of contemporary literature. here, i have tried to focus on one of the main themes in becketts works: the search for the real "me" or the real self, which is not only a problem to be solved for beckett man but also for each of us. i have tried to show becketts techniques in approaching this unattainable goal, base...
15 صفحه اولCaptivity 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: Urban Ecosystems
سال: 2019
ISSN: 1083-8155,1573-1642
DOI: 10.1007/s11252-019-00874-6