Adaptive sex allocation in birds: The complexities of linking theory and practice

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We review some recent theoretical and empirical developments in the study of sex allocation in birds. The advent of reliable molecular sexing techniques has led to a sharp increase in the number of studies that report biased offspring sex ratios in birds. However, compelling evidence for adaptive sex allocation in birds is still very scant. We argue that there are two reasons for this: (i) standard sex allocation models, very helpful in understanding sex allocation of invertebrates, do not sufficiently take the complexities of bird life histories and physiology into account. Recent theoretical work might bring us a step closer to more realistic models; (ii) experimental field and laboratory studies on sex allocation in birds are scarce. Recent experimental work both in the laboratory and in the field shows that this is a promising approach.
Originele taal-2English
Pagina's (van-tot)373-380
Aantal pagina's8
TijdschriftPhilosophical Transactions of the Royal Society of London. Series B: Biological Sciences
Nummer van het tijdschrift1419
StatusPublished - 29-mrt.-2002

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