Nom du corpus

Corpus Systématique Animale

Titre du document

Heat balance of two starling species ( Sturnus vulgaris and Onychognathus tristrami ) from temperate and desert habitats

Lien vers le document
Éditeur
Springer (journals)
Langue(s) du document
Anglais
Type de document
Research-article
Nom du fichier dans la ressource
Oiseaux_v2b_00699
Auteur(s)
  • Razi Dmi'el 1
  • David Tel-Tzur 1
Affiliation(s)
  • 1) Department of Zoology, George S. Wise Faculty of Life Sciences, Tel Aviv University, Ramat Aviv, 69978, Tel Aviv, Israel
Résumé

Body temperature (T b), oxygen consumption $\dot V_{{\text{O}}_{\text{2}} } $ , thermal conductance (C) and evaporative water loss (EWL) were measured at various air temperatures (T a) in two starlings which evolved in the tropics: a migratory species from a temperate climate,Sturnus vulgaris, and a resident, desert species,Onychognathus tristrami (Aves, Passeriformes, Sturnidae). AtT a's of 4–35°C both birds hadT b of 40.6°C. At 44°C,T b ofSturnus was 45.8°C and that ofOnychognathus 43.3°C.T a of 44°C was tolerated only byOnychognathus. The thermoneutral zone (TNZ) ofSturnus was in theT a range of 29.5°C–36.5°C, that ofOnychognathus 21.5–36.5°C. $\dot V_{{\text{O}}_{\text{2}} } $ ofSturnus within its TNZ (BMR) was 2.37 ml O2 g?1 h?1, which is close to the expected BMR; that ofOnychognathus, 1.67 ml O2 g?1 h?1, is only 74% of the expected. AtT a's?NZ,C ofSturnus was twice as high as that ofOnychognathus and 1.68 times the expected value, whereasC ofOnychognathus was only 94% of the expected. At highT a'sOnychognathus had higherC thanSturnus. At either low or highT a's EWL ofSturnus was greater than ofOnychognathus. The responses shown bySturnus are typical of a tropical bird living in a moderate environment. This indicates that neither in USSR where it spends the summer, nor in Israel where it spends the winter, is this starling exposed to extreme temperatures.Onychognathus is better adapted not only to high but also to the low temperatures prevailing in mountainous regions of the desert.

Catégories Science-Metrix
  • 1 - health sciences
  • 2 - biomedical research
  • 3 - physiology
Catégories INIST
  • 1 - sciences appliquees, technologies et medecines
  • 2 - sciences biologiques et medicales
  • 3 - sciences biologiques fondamentales et appliquees. psychologie
  • 4 - productions animales
Catégories Scopus
  • 1 - Life Sciences ; 2 - Biochemistry, Genetics and Molecular Biology ; 3 - Endocrinology
  • 1 - Life Sciences ; 2 - Agricultural and Biological Sciences ; 3 - Animal Science and Zoology
  • 1 - Life Sciences ; 2 - Biochemistry, Genetics and Molecular Biology ; 3 - Biochemistry
  • 1 - Life Sciences ; 2 - Agricultural and Biological Sciences ; 3 - Ecology, Evolution, Behavior and Systematics
  • 1 - Life Sciences ; 2 - Biochemistry, Genetics and Molecular Biology ; 3 - Physiology
Catégories WoS
  • 1 - science ; 2 - zoology
  • 1 - science ; 2 - physiology
Identifiant ISTEX
F1AC29D626975BC0B6D8F3E7D3A30B8CF604A587
Revue

Journal of Comparative Physiology B

Année de publication
1985
Présence de XML structuré
Non
Version PDF
1.3
Score qualité du texte
9.796
Sous-corpus
  • Oiseaux
Type de publication
Journal
ark:/67375/1BB-CXNBB336-B
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