Torpor in an Andean Hummingbird: Its Ecological Significance
- 8 February 1974
- journal article
- other
- Published by American Association for the Advancement of Science (AAAS) in Science
- Vol. 183 (4124), 545-547
- https://doi.org/10.1126/science.183.4124.545
Abstract
Field studies on an Andean hummingbird showed that nocturnal torpor occurs more frequently and lasts longer in the winter. Energy depletion does not seem to cause this yearly torpor cycle, and a photoperiodically controlled rhythm that enables the birds to automatically conserve energy in early evening for possible metabolic expenditures required later in the winter night is suggested.Keywords
This publication has 11 references indexed in Scilit:
- Hypothermia of Broad-Tailed Hummingbirds during Incubation in Nature with Ecological CorrelationsScience, 1973
- “PRIMITIVE” MAMMALSPublished by Elsevier ,1973
- Environmental influence on regulated body temperature in torpid hummingbirdsComparative Biochemistry and Physiology Part A: Physiology, 1972
- Temperature Relationships and Nesting of the Calliope HummingbirdOrnithological Applications, 1971
- Regulation of Oxygen Consumption and Body Temperature during Torpor in a Hummingbird, Eulampis jugularisScience, 1970
- The relation between the torpor cycle and heat exchange in the California pocket mouse Perognathus californicusJournal of Cellular and Comparative Physiology, 1965
- From Field and StudyOrnithological Applications, 1959
- The Daily Energy Requirements of a Wild Anna HummingbirdOrnithological Applications, 1954
- Nest Temperatures and Attentiveness in the Anna HummingbirdOrnithological Applications, 1954
- Use of Caves by Hummingbirds and Other Species at High Altitudes in PeruOrnithological Applications, 1953