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Testing the niche variation hypothesis in a community of passerine birds
(Ecological Society of America, 2017)
The niche variation hypothesis (NVH) predicts that populations with broader niches should exhibit greater between- individual diet variation or individual specialization (IS) relative to populations with narrower niches. ...
Non-passerine birds from Laguna Melincué Ramsar Site, Santa Fe province, Argentina
(Check List, 2015-11)
We present a waterbird inventory of the Laguna Melincué Ramsar Site in southern Santa Fe province, Argentina. We record 109 species from 28 families of non-passerine birds, including the 14 Nearctic species, four southern ...
Terrestrial birds in coastal environments: metabolic rate and oxidative status varies with the use of marine resources
(Springer, 2018)
Life in saline environments represents a major physiological challenge for birds, particularly for passerines that lack nasal salt glands and hence are forced to live in environments that do not contain salty resources. ...
Osmoregulatory responses to dietary protein and water intake in the granivorous Zonotrichia capensis (Passerine, Emberizidae)
(Sociedad de Biologia de Chile, 2007)
We studied the osmoregulatory responses of the granivore Zonotrichia capensis, acclimated to high- and low-protein diets as well as two levels of water intake. We tested whether Z. capensis has the ability to modify the ...
Small intestinal epithelial permeability to water-soluble nutrients higher in passerine birds than in rodents
(Wiley Blackwell Publishing, Inc, 2018-12)
In the small intestine transcellular and paracellular pathways are implicated in water-soluble nutrient absorption. In small birds the paracellular pathway is quantitatively important while transcellular pathway is much ...
New records of feather mites (Acariformes: Astigmata) from non-passerine birds (Aves) in Brazil
(2016-11-22)
We present the results of our investigation of feather mites (Astigmata) associated with non-passerine birds in Brazil. The studied birds were obtained from roadkills, airport accidents, and from capitivity. Most ectoparasites ...
Stomach contents of Brazilian non-passerine birds
(Sociedade Brasileira de Ornitologia, 2013)
Triploidy in a sexually dimorphic passerine provides new evidence for the effect of the W chromosome on secondary sexual traits in birds
(Wiley-Blackwell, 2017-11-01)
In birds, there are two main models for the determination of sex: the Z Dosage' model in which the number, or dose, of Z chromosomes determines sex, and the Dominant W' model which argues that a specific gene in the W ...
New Records Of Feather Mites (acariformes: Astigmata) From Non-passerine Birds (aves) In Brazil
(Centro de Referencia em Informacao Ambiental, 2016)
Physiological responses in rufous-collared sparrows to thermal acclimation and seasonal acclimatization
(2009)
A large number of physiological acclimation studies assume that flexibility in a certain trait is both adaptive and functionally important for organisms in their natural environment; however, it is not clear how an organism's ...