Show simple item record Logue, David M. Takahashi, April D. Cade, William H. 2020-04-24T20:39:53Z 2020-04-24T20:39:53Z 2011
dc.identifier.citation Logue, D. M., Takahashi, A., & Cade, W. H. (2011). Aggressiveness and size: A model and two tests. The American Naturalist, 177(2), 202-210. en_US
dc.description Sherpa Romeo green journal. Permission to archive final published version en_US
dc.description.abstract Individual variation in aggressive behavior in animals might be caused by adaptive covariation with body size. We developed a model that predicts the benefits of aggressiveness as a function of body size. The model indicated that individuals of intermediate sizes would derive the greatest benefits from being aggressive. If we assume that the cost of aggression is approximately uniform with respect to body size, selection should favor higher aggression in intermediate-sized individuals than in large or small individuals. This prediction was tested by stimulating male Madagascar hissing cockroaches, Gromphadorhina portentosa, with disembodied antennae and recording the males’ aggressive responses. Antennae from larger males evoked weaker responses in subjects, suggesting that males obtained information about their opponents’ size from the opponents’ antennae alone. After accounting for this effect, we found support for the key prediction of our model: aggressiveness peaked at intermediate sizes. Data from actual male-male interactions validated that the antenna assay accurately measured aggressiveness. Analysis of an independent data set generated by staging male-male interactions also supported the prediction that intermediate-sized males were most aggressive. We conclude that adaptive covariation between body size and aggressiveness explains some interindividual variation in aggressiveness. en_US
dc.language.iso en_US en_US
dc.publisher University of Chicago Press en_US
dc.subject Aggression en_US
dc.subject Behavioral syndromes en_US
dc.subject Chemical communcation en_US
dc.subject Cockroach en_US
dc.subject Gromphadorhina portentosa en_US
dc.subject Male-male competition en_US
dc.subject Body size
dc.subject.lcsh Aggressive behavior in animals
dc.subject.lcsh Cockroaches as laboratory animals
dc.title Aggressiveness and size: a model and two tests en_US
dc.type Article en_US
dc.publisher.faculty Arts and Science en_US
dc.publisher.department Department of Biological Sciences en_US
dc.publisher.department Department of Psychology en_US
dc.description.peer-review Yes en_US
dc.publisher.institution Universidad de Puerto Rico en_US
dc.publisher.institution University of Lethbridge en_US
dc.publisher.url en_US

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