Tree Sparrows
Effects of capture and captivity on plasma corticosterone and metabolite levels in breeding Eurasian Tree Sparrows
... Eurasian Tree Sparrows experienced prolonged effects of the initial capture and restraint stress of captivity and underwent significant weight loss in captivity despite water and food were provided ad ...
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Life-history dependent relationships between plasma alkaline phosphatase activity and body condition in male Eurasian Tree Sparrows
... In summary, male Eurasian Tree Sparrows exhibited elevated plasma ALP activity but lower Hct values dur- ing the wintering compared to the breeding stages. The positive correlations between plasma ALP ...
5
New Genotype of Avian Influenza H5N1 Viruses Isolated from Tree Sparrows in China
... Virus isolation and molecular characterization. Among the 38 cloacal swabs from captured free-living tree sparrows, 25 tested avian influenza virus antigen positive by enzyme-linked immunosorbent assay. ...
7
Energy state affects exploratory behavior of tree sparrows in a group context under differential food-patch distributions
... that tree sparrows of different energy states use both ac- tive exploring (producer) and joining (scrounger) tactics while exploring a novel environment, and suggest that each bird may concurrently search ...
10
Relationships between interspecific differences in the mass of internal organs, biochemical markers of metabolic activity, and the thermogenic properties of three small passerines
... Eurasian Tree Sparrows (Pas- ser montanus) inhabit vast areas of Europe and Asia (MacKinnon and Phillipps ...Eurasian Tree Sparrows are resident in ...Eurasian Tree Sparrow increases ...
9
The Effect Of Testosterone On The Spring Migratory Phenotype Of A North American Songbird (Zonotrichia albicollis)
... white-throated sparrows may be related to the environmental conditions on wintering grounds (Dawson et ...white-throated sparrows spend the winter in more northern latitudes, and endure cold climates ...
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Russet Sparrows spot alien chicks from their nests
... Russet Sparrows have no egg rec- ognition ability, but recognize their own nestlings and eject alien chicks or starve them to ...Tree Sparrows. By rejecting nestlings of foreign species, Russet ...
7
Flying high: limits to flight performance by sparrows on the Qinghai Tibet Plateau
... Eurasian tree sparrow has a wide elevational distribution from sea level to the Qinghai-Tibet Plateau (QTP), representing a vertical difference of more than 5000 m (Fu et ...Eurasian tree sparrows at ...
7
Role of GnIH in photoperiodic regulation of seasonal reproduction in the Eurasian tree sparrow
... in tree sparrows exposed to both natural and long day length, suggesting temporal photoperiodic regulation of this ...the tree sparrow are consistent with those observed in the subtropical spotted ...
9
Optimal analysis conditions for sperm motility parameters with a CASA system in a passerine bird, Passer montanus
... Sperm motility parameters detected by the CASA system Male Tree Sparrows were acclimatized to the labora- tory for 3 h before they were euthanized. Then, they were immediately dissected for a series of ...
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Fully reversible phenotypic plasticity of digestive physiology in young house sparrows: lack of long term effect of early diet composition
... house sparrows is reversible, we raised them under laboratory conditions from 3 until 30 days of age on diets with either 0% starch or 25% starch, with some individuals experiencing a switch in their assigned ...
6
Weathering the Storm: Physiological and Behavioural Responses of White-Throated Sparrows to Inclement Weather Cues
... white-throated sparrows (Zonotrichia ablicollis) respond to exposure of inclement weather cues? Within this thesis, I examined the effects of recurrent inclement weather cues (Chapter 2), and also acute exposure ...
189
Habitat Characteristics Affecting Site Occupation in Wintering Henslow’s Sparrows at Mississippi Sandhill Crane National Wildlife Refuge
... Habitat Characteristics Affecting Site Occupation in Wintering Habitat Characteristics Affecting Site Occupation in Wintering Henslow’s Sparrows at Mississippi Sandhill Crane National [r] ...
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Different colors reveal different information: how nutritional stress affects the expression of melanin and structurally based ornamental plumage
... and sparrows were noticeably hungry after the food-stress period and would descend from their perches to the floor of the cage to consume food while dishes were still being replaced elsewhere in the ...house ...
9
Activation of the immune system incurs energetic costs but has no effect on the thermogenic performance of house sparrows during acute cold challenge
... the chamber temperature at 30°C, which is within the thermal neutral zone for house sparrows (Arens and Cooper, 2005; Hudson and Kimzey, 1966), throughout the RMR trials. We kept birds within the metabolic ...
6
A spatiotemporal multispecies model of a semicontinuous response
... house sparrows to allow the associated variables to vary on their own (not tied to processes governing the other ...house sparrows has evolved over the last 36 years inversely to that of sparrowhawks, ...
22
Vision in avian emberizid foragers: maximizing both binocular vision and fronto lateral visual acuity
... American tree sparrow Spizella arborea Wilson 1810, chipping sparrow Spizella passerine Bechstein 1798, dark-eyed junco Junco hyemalis Linnaeus 1758, Eastern towhee Pipilo erythrophthalmus Linnaeus 1758, field ...
12
Carotenoids modulate the effect of coccidian infection on the condition and immune response in moulting house sparrows
... After introduction, birds were allowed to acclimatise for 2–4 days in the aviaries. On the day following the acclimation (day 0 = 28 July) (Fig. 1), house sparrows were moved to individual outdoor cages in order ...
8
Sparrow Swap: Testing Management Strategies for House Sparrows and Exploring the Use of Their Eggshells for Monitoring Heavy Metal Pollution.
... House Sparrows (Passer domesticus) as a model organism for determining patterns between eggshell color and speckling and heavy metal ...House sparrows are ubiquitous non-native species, that are commensal ...
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Effects of Recurrent Inclement Winter Weather Cues on White-Throated Sparrows (Zonotrichia albicollis)
... 2013). Sparrows are typically ground- feeding species, so storms, particularly those with significant precipitation, can deplete food sources leading to an increase in feeding prior to ...
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