Nom du corpus

Corpus Systématique Animale

Titre du document

Population density and energetics of lizards on a tropical island

Lien vers le document
Éditeur
Springer (journals)
Langue(s) du document
Anglais
Type de document
Research-article
Nom du fichier dans la ressource
Mammiferes_v2b_00111, Reptiles_v2b_00042
Auteur(s)
  • Albert F. Bennett 1
  • George C. Gorman 2
Affiliation(s)
  • 1) School of Biological Sciences, University of California, Irvine, 92717, Irvine, California
  • 2) Department of Biology, University of California, Los Angeles, 90024, Los Angeles, California, USA
Résumé

1. Population density, biomass, thermal relations and energetics of three common species of lizards (Anolis bonairensis, Cnemidophorus murinus, Gonatodes antillensis) were measured in a thornscrub community on the arid Caribbean island of Bonaire. 2. Population density and biomass estimates of these populations were 1318, 561, and 4200 individuals/ha and 4.2, 15.4, and 3.5 kg/ha, respectively. Although these densities are not exceptional for other Carribbean islands, they greatly exceed lizard densities reported for mainland communities. 3. Mean diurnal body temperatures are 33.4° C for Anolis, 40.4° C for Cnemidophorus, and 34.5° C for Gonatodes. Nocturnal temperatures average 27° C for all species. 4. Resting rates of oxygen consumption for all species were measured at naturally experienced diurnal and nocturnal temperatures. The values were used to calculate Minimal and more realistic Field Active estimates of the respiratory energy utilization of these lizard populations. 5. Minimal estimates of energy expenditure are 326, 950, and 268 kJ/(haxday) for Anolis, Cnemidophorus, and Gonatodes, and Field Active estimates are 693, 2510, and 379 kJ/(haxday), respectively. 6. These estimates greatly exceed values previously reported for other lizard populations. They also exceed reported values for the respiratory metabolism of populations of small mammals in temperate regions. 7. These values are probably not atypical of other tropical insular lizard populations, and the significance of these animals to energy flow in these communities has not generally been appreciated.

Catégories Science-Metrix
  • 1 - natural sciences
  • 2 - biology
  • 3 - ecology
Catégories INIST
  • 1 - sciences appliquees, technologies et medecines
  • 2 - sciences biologiques et medicales
  • 3 - sciences biologiques fondamentales et appliquees. psychologie
Catégories Scopus
  • 1 - Life Sciences ; 2 - Agricultural and Biological Sciences ; 3 - Ecology, Evolution, Behavior and Systematics
Catégories WoS
  • 1 - science ; 2 - ecology
Identifiant ISTEX
7690685981DC8047E724AEF437CCC5F8458779E3
Revue

Oecologia

Année de publication
1979
Présence de XML structuré
Non
Version PDF
1.3
Score qualité du texte
9.748
Sous-corpus
  • Mammiferes
  • Reptiles
Type de publication
Journal
ark:/67375/1BB-HDKRH0JH-C
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