Sparrows - Physiology
Research News and Information

Saturday, November 21, 2009

Effects of aggressive encounters on plasma corticosteroid-binding globulin and its ligands in white-crowned sparrows.

6 Jul 2009 In birds, corticosteroid-binding globulin (CBG) binds corticosterone, progesterone and testosterone. The concentration of each ligand can alter the binding of the other ligands through competitive interactions. Thus, an increase in corticosterone or ... Read more...

Food-supplementing parents reduces their sons' song repertoire size.

18 May 2009 Food-supplemented parents typically produce more offspring, as numerous experiments on vertebrate populations have shown. 'Propagule' (egg or neonate) size and parental care may also be affected, with implications concerning the adult quality of ... Read more...

Plastic and stable electrophysiological properties of adult avian forebrain song-control neurons across changing breeding conditions.

18 May 2009 Steroid sex hormones drive changes in the nervous system and behavior in many animal taxa, but integrating the former with the latter remains challenging. One useful model system for meeting this challenge is seasonally breeding songbirds. In these ... Read more...

Latest indexed articles for 'Sparrows - Physiology'

These are the very latest articles for this heading:

• Effects of aggressive encounters on plasma corticosteroid-binding globulin and its ligands in white-crowned sparrows. 6 Jul 2009
• Food-supplementing parents reduces their sons' song repertoire size. 18 May 2009
• Plastic and stable electrophysiological properties of adult avian forebrain song-control neurons across changing breeding conditions. 18 May 2009
• The role of neurotrophins in the seasonal-like growth of the avian song control system. 18 May 2009
• Complex interactions among temporal variables affect the plasticity of clutch size in a multi-brooded bird. 29 Apr 2009
• Dietary macronutrients affect lipid metabolites and body composition of a migratory passerine, the white-throated sparrow (Zonotrichia albicollis). 29 Apr 2009
• Larger groups are more successful in innovative problem solving in house sparrows. 25 Apr 2009
• Neurogenesis in an adult avian song nucleus is reduced by decreasing caspase-mediated apoptosis. 6 Apr 2009
• A female songbird out-sings male conspecifics during simulated territorial intrusions. 5 Mar 2009
• Spatial and temporal variation in the relative contribution of density dependence, climate variation and migration to fluctuations in the size of great tit populations. 27 Feb 2009
• Pharmacological characterization of intracellular, membrane, and plasma binding sites for corticosterone in house sparrows. 19 Feb 2009
• The effect of acute fenitrothion exposure on a variety of physiological indices, including avian aerobic metabolism during exercise and cold exposure. 30 Jan 2009
• Neural correlates of categorical perception in learned vocal communication. 9 Jan 2009
• Heritability of nestling begging intensity in the house sparrow (Passer domesticus). 31 Dec 2008
• Differential selection according to the degree of cheating in a status signal. 21 Dec 2008
• Vocal tract motor patterns and resonance during constant frequency song: the white-throated sparrow. 8 Dec 2008
• Individual phenotype, kinship, and the occurrence of inbreeding in song sparrows. 2 Dec 2008
• Organizational effects of maternal testosterone on reproductive behavior of adult house sparrows. 29 Nov 2008
• Habitat structure mediates predation risk for sedentary prey: experimental tests of alternative hypotheses. 22 Nov 2008
• Diet and habitat aridity affect osmoregulatory physiology: an intraspecific field study along environmental gradients in the Rufous-collared sparrow. 16 Nov 2008

See a longer list of these articles.

Technical information about 'Sparrows'

Definition: The family Passeridae comprised of small, mainly brown and grey seed-eating birds with conical bills.

Descriptor UI: D046370

Alternative terms: Sparrows; Sparrow; Passeridae;

Allowable Qualifiers: abnormalities; anatomy & histology; blood; cerebrospinal fluid; classification; embryology; genetics; growth & development; immunology; injuries; metabolism; microbiology; parasitology; physiology; surgery; urine; virology;

Tree Number: B01.150.900.248.620.750.700;

History Note: 2005; use SONGBIRDS 1999-2004