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The relationship between body size and time of breeding in Icelandic Redshanks Tringa t. robusta
Author(s) -
SUMMERS RONALD W.,
UNDERHILL LESLIE G.
Publication year - 1991
Publication title -
ibis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.933
H-Index - 80
eISSN - 1474-919X
pISSN - 0019-1019
DOI - 10.1111/j.1474-919x.1991.tb04824.x
Subject(s) - icelandic , assortative mating , biology , selection (genetic algorithm) , evolutionary biology , mating , wing , zoology , statistics , mathematics , physics , computer science , philosophy , linguistics , artificial intelligence , thermodynamics
The average wing‐lengths of male and female Redshanks differ, allowing one to estimate the probabilities of males being larger in pairs whose measurements are known. Using these probabilities in a large number of simulations we showed that larger ‘female’ Icelandic Redshanks nested earlier than smaller ones. The results support Hale's suggestion that size selection in Redshanks operates on the breeding grounds. There was no evidence of assortative mating.