Nom du corpus

Corpus Systématique Animale

Titre du document

Opportunism vs. specialization: the evolution of dispersal strategies in fleshy-fruited plants

Lien vers le document
Éditeur
Springer (journals)
Langue(s) du document
Anglais
Type de document
Research-article
Mots-clés d'auteur
  • Dispersal coteries
  • Dispersal quality
  • Dispersal syndromes
  • Coevolution
Nom du fichier dans la ressource
Mammiferes_v2b_00829, Oiseaux_v2b_00871
Auteur(s)
  • T. H. Fleming 1
  • D. L. Venable 2
  • L. G. M. Herrera 1
Affiliation(s)
  • 1) Department of Biology, University of Miami, 33124, Coral Gables, FL, USA
  • 2) Department of Ecology and Evolutionary Biology, University of Arizona, 85721, Tucson, AZ, USA
Résumé

In this paper we address two questions concerning the interaction between fleshy-fruited plants and their seed dispersers: (1) What determines optimal disperser coterie size (designated as ?) and (2) Why does disperser specialization occur along taxonomic lines? We review factors that affect the evolution of ? and conclude that seed size and disperser quality (designated as Q) are especially important. We present a simple graphical model for determining ? based on Q and conclude that ? will be small (i.e. a specialized disperser strategy) when Q declines rapidly with increasing coterie size; ? will be large when Q declines slowly with increasing coterie size. We construct a model based on fitness set theory to predict that specialization on particular vertebrate taxa (e.g. birds or mammals) will be favored when different disperser taxa are perfectly substitutable or antagonistic (sensu Tilman 1982); mixed-taxa coteries are favored when different disperser taxa are complementary. Finally, we predict that when conditions favor taxonomic specialization, plants will evolve bird fruits more often than bat or primate fruits because of the greater species richness of birds compared with bats and primates.

Catégories INIST
  • 1 - sciences appliquees, technologies et medecines
  • 2 - sciences biologiques et medicales
  • 3 - sciences biologiques fondamentales et appliquees. psychologie
  • 4 - psychologie. psychophysiologie
Catégories Scopus
  • 1 - Life Sciences ; 2 - Agricultural and Biological Sciences ; 3 - Plant Science
  • 1 - Physical Sciences ; 2 - Environmental Science ; 3 - Ecology
Identifiant ISTEX
67F35DD25277A666E74C76F06A1A1C0B3803BC2C
Revue

Vegetatio

Année de publication
1993
Présence de XML structuré
Non
Version PDF
1.3
Score qualité du texte
9.22
Sous-corpus
  • Mammiferes
  • Oiseaux
Type de publication
Journal
ark:/67375/1BB-0PHNB0SL-C
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