منابع مشابه
Surveillance for microbes and range expansion in house sparrows.
Interactions between hosts and parasites influence the success of host introductions and range expansions post-introduction. However, the physiological mechanisms mediating these outcomes are little known. In some vertebrates, variation in the regulation of inflammation has been implicated, perhaps because inflammation imparts excessive costs, including high resource demands and collateral dama...
متن کاملHouse sparrows
Shinichi Nakagawa and Joel Pick introduce what we can learn from house sparrows.
متن کاملCorticosterone regulation in house sparrows invading Senegal.
What traits help organisms expand their ranges? Several behavioral and life history traits have been identified, but physiological and especially endocrinological factors have been minimally considered. Here, we asked whether steroid hormonal responses to stressors might be important. Previously, we found that corticosterone (CORT) responses to a standard restraint stressor were stronger at a r...
متن کاملMale Morphology and Nest-site Quality in House Sparrows
-Previous research on House Sparrows (Passer domesticus) in Europe indicated that males with larger bibs are more likely to obtain nest sites with multiple potential nests. To test this observation experimentally, I created nest sites containing either one or two nest boxes. 1 found no morphological differences, including bib size, between males at single-box nest sites (SBNS’s) and those at do...
متن کاملEffects of season on kidney morphology in house sparrows.
Seasonal variability in kidney morphology of the house sparrow Passer domesticus was examined using light microscopy. Sparrows were captured from the wild in winter, spring, summer and autumn. The kidneys were perfused with half-strength Karnovsky's fixative and processed for light microscopy by embedding in either paraffin wax or JB4 acrylic resin. Absolute volumes of the kidneys, their compon...
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ژورنال
عنوان ژورنال: The Condor
سال: 2000
ISSN: 0010-5422,1938-5129
DOI: 10.1093/condor/102.3.679