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Adoption behaviour by gulls: a new hypothesis
Author(s) -
HÉBERT PERCY N.
Publication year - 1988
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.1988.tb00972.x
Subject(s) - investment (military) , alternative hypothesis , biology , zoology , economics , econometrics , political science , politics , law , null hypothesis
It appears that chicks are selected to run away and seek adoption in a foster‐family when the level of investment they receive falls below a certain threshold. Predictions based on this hypothesis are in agreement with the available evidence in the literature.