Linked Life Data

11823605

Source:http://linkedlifedata.com/resource/pubmed/id/11823605

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
5560
pubmed:dateCreated
2002-3-1
pubmed:abstractText
When the relative fitness of male and female offspring varies with environmental conditions, evolutionary theory predicts that parents should adjust the sex of their offspring accordingly. Qualitative and even quantitative support for this prediction is striking in some taxa but much less convincing in others. Explaining such variation across taxa in the fit of sex ratio theory remains a major challenge. We use meta-analysis to test the role of two constraints in the evolution of sex ratios. Based on analysis of sex ratio skews in birds and wasps, we show that (i) mechanisms of sex determination do not necessarily constrain the evolution of sex ratio adjustment, and (ii) parental ability to predict their offsprings' environment influences the evolution of sex ratio patterns across taxa. More generally, our results show that multiple constraints may determine the precision of adaptation.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:status
MEDLINE
pubmed:month
Mar
pubmed:issn
1095-9203
pubmed:author
pubmed:issnType
Electronic
pubmed:day
1
pubmed:volume
295
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1685-8
pubmed:dateRevised
2010-11-18
pubmed:meshHeading
pubmed:year
2002
pubmed:articleTitle
Constraints in the evolution of sex ratio adjustment.
pubmed:affiliation
Institute of Cell, Animal, and Population Biology, University of Edinburgh, Edinburgh EH9 3JT, UK., Edward Grey Institute, Department of Zoology, University of Oxford, Oxford, UK.
pubmed:publicationType
Journal Article, Meta-Analysis