Linked Life Data

12184828

Source:http://linkedlifedata.com/resource/pubmed/id/12184828

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1500
pubmed:dateCreated
2002-8-19
pubmed:abstractText
The causes and magnitude of inbreeding depression are of considerable importance for a wide range of issues in evolutionary and conservation biology, but we have only a limited understanding of inbreeding depression in natural populations. Here, we present a study of inbreeding in a large wild population of collared flycatchers (Ficedula albicollis). Inbreeding was rare, to the extent that we detected only 1.04% of 2139 matings over 18 years that resulted in offspring with a non-zero inbreeding coefficient, f > 0. When it did occur, inbreeding caused a significant reduction in the egg-hatching rate, in fledgling skeletal size and in post-fledging juvenile survival, with the number of offspring being recruited to the breeding population from a nest of f = 0.25 being reduced by 94% relative to a non-inbred nest. A maximum-likelihood estimate of the number of lethal equivalents per gamete was very high at B = 7.47, indicating a substantial genetic load in this population. There was also a non-significant tendency for inbreeding depression to increase with the strength of selection on a trait. The probability of mating between close relatives (f = 0.25) increased throughout the breeding season, possibly reflecting increased costs of inbreeding avoidance. Our results illustrate how severe inbreeding depression and considerable genetic load may exist in natural populations, but detecting them may require extensive long-term datasets.
pubmed:commentsCorrections
http://linkedlifedata.com/resource/pubmed/commentcorrection/12184828-10504423, http://linkedlifedata.com/resource/pubmed/commentcorrection/12184828-10716731, http://linkedlifedata.com/resource/pubmed/commentcorrection/12184828-11333971, http://linkedlifedata.com/resource/pubmed/commentcorrection/12184828-11410156, http://linkedlifedata.com/resource/pubmed/commentcorrection/12184828-11467429, http://linkedlifedata.com/resource/pubmed/commentcorrection/12184828-11571049, http://linkedlifedata.com/resource/pubmed/commentcorrection/12184828-11600082, http://linkedlifedata.com/resource/pubmed/commentcorrection/12184828-11838766, http://linkedlifedata.com/resource/pubmed/commentcorrection/12184828-11838776, http://linkedlifedata.com/resource/pubmed/commentcorrection/12184828-12144022, http://linkedlifedata.com/resource/pubmed/commentcorrection/12184828-16589958, http://linkedlifedata.com/resource/pubmed/commentcorrection/12184828-4516192
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:status
MEDLINE
pubmed:month
Aug
pubmed:issn
0962-8452
pubmed:author
pubmed:issnType
Print
pubmed:day
7
pubmed:volume
269
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1581-9
pubmed:dateRevised
2010-9-14
pubmed:meshHeading
pubmed:year
2002
pubmed:articleTitle
Severe inbreeding depression in collared flycatchers (Ficedula albicollis).
pubmed:affiliation
Institute of Cell, Animal and Population Biology, King's Buildings, University of Edinburgh, Edinburgh EH9 3JT, UK. loeske.kruuk@ed.ac.uk
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't