The roles of competition and environmental heterogeneity in the maintenance of behavioral variation and covariation

Many models of selection predict that populations will lose variation in traits that affect fitness. Nonetheless, phenotypic variation is commonly observed in natural populations. We tested the influences of competition and spatial heterogeneity on behavioral variation within and among populations o...

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Veröffentlicht in:	Ecology (Durham) 2012-06, Vol.93 (6), p.1330-1339
Hauptverfasser:	Dochtermann, Ned A, Jenkins, Stephen H, Swartz, Maryke J, Hargett, Allison C
Format:	Artikel
Sprache:	eng
Schlagworte:	aggression Animal and plant ecology animal personality Animal populations Animal, plant and microbial ecology Animals Behavior, Animal - physiology behavioral syndromes Biological and medical sciences Community ecology competition covariance Dipodomys Dipodomys - physiology Dipodomys merriami Ecological competition Ecological genetics Ecosystem environmental heterogeneity Environmental Monitoring - methods Fundamental and applied biological sciences. Psychology gene expression regulation General aspects Genotype & phenotype Hot springs Hot Springs Mountains, Nevada, USA Kangaroos Mammalia Merriam's kangaroo rats Phenotypic traits phenotypic variation Population ecology Predation Predators prediction Rats Rodents spatial variation trade-offs Vertebrates: general zoology, morphology, phylogeny, systematics, cytogenetics, geographical distribution
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