Nom du corpus

Corpus Systématique Animale

Titre du document

Latitudinal gradients in butterfly body sizes: is there a general pattern?

Lien vers le document
Éditeur
Springer (journals)
Langue(s) du document
Anglais
Type de document
Research-article
Mots-clés d'auteur
  • Butterflies
  • Body size
  • Latitudinal gradients
Nom du fichier dans la ressource
Insectes_v2b_01549
Auteur(s)
  • Bradford A. Hawkins 1
  • John H. Lawton 1
Affiliation(s)
  • 1) NERC Centre for Population Biology, Imperial College, Silwood Park, SL5 7PY, Ascot, Berks, UK
Résumé

We tested for the existence of latitudinal gradients in the body sizes of butterflies in North America, Europe, Australia and the Afrotropics. We initially compared body sizes (measured as male forewing length) of all butterflies found in 5° latitudinal bands in each region, and then evaluated the relationship between body size and latitude statistically using the latitudinal midpoint of each species' distribution. Trends were examined for species in all butterfly families together and for each family separately. We found that gradients in body sizes were inconsistent in different geographical regions and butterfly families; in some cases species were larger towards the tropics, in some they were smaller, and in other cases there were no relationships. Most of the gradients, when they existed, reflected between-family effects arising from changes in the relative numbers of species in each family across regions. We conclude that general ecological explanations for geographical trends in butterfly body sizes are inappropriate, and gradients largely reflect historical patterns of speciation within and between taxa in each biogeographical realm. Thus, the robustness of body size gradients found in other insect groups should be confirmed in future studies by including more than one geographical region whenever possible.

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
023F5206E016E361B7801C0D2D9DC75F6A2D7356
Revue

Oecologia

Année de publication
1995
Présence de XML structuré
Non
Version PDF
1.3
Score qualité du texte
6.982
Sous-corpus
  • Insectes
Type de publication
Journal
ark:/67375/1BB-D1JKDWNL-X
Powered by Lodex 9.3.8