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Article: A method for studying post-fledging survival rates using data from ringing recoveries

TitleA method for studying post-fledging survival rates using data from ringing recoveries
Authors
Issue Date1999
Citation
Bird Study, 1999, v. 46 SUPPL., p. S104-S111 How to Cite?
AbstractWe present a method for studying post-fledging survival rates from data on national ringing recoveries. The approach extends the classical two-age-class models of Brownie et al. (1985) to include a third age-class of birds ringed as nestlings. The models can incorporate age-class-specific and year-specific variation in reporting rates and survival rates. Unlike intensive resighting studies at single sites, this approach does not confound death with emigration and provides estimates of survival which are representative of a larger geographical area. We implemented the models with SURVIV software, using likelihood-ratio tests to assess the significance of possible age and year effects on survival rates or reporting rates. We demonstrate this approach using a set of data on British-ringed Song Thrushes Turdus philomelos. In this case, we were unable to detect any age-class-specific or year-specific variation in reporting rates and, although the survival rates of first-year and adult Song Thrushes varied significantly between years, post-fledging survival did not show any detectable inter-annual variation. Song Thrushes ringed as nestlings had a 0.38 chance (95% CI = 0.30-0.45) of surviving the 63-day post-fledging period (here defined as the period separating the average dates of birds ringed as nestlings and birds ringed as independent first-year birds).
Persistent Identifierhttp://hdl.handle.net/10722/178686
ISSN
2015 Impact Factor: 0.888
2015 SCImago Journal Rankings: 0.576
References

 

DC FieldValueLanguage
dc.contributor.authorThomson, DLen_US
dc.contributor.authorBaillie, SRen_US
dc.contributor.authorPeach, WJen_US
dc.date.accessioned2012-12-19T09:49:08Z-
dc.date.available2012-12-19T09:49:08Z-
dc.date.issued1999en_US
dc.identifier.citationBird Study, 1999, v. 46 SUPPL., p. S104-S111en_US
dc.identifier.issn0006-3657en_US
dc.identifier.urihttp://hdl.handle.net/10722/178686-
dc.description.abstractWe present a method for studying post-fledging survival rates from data on national ringing recoveries. The approach extends the classical two-age-class models of Brownie et al. (1985) to include a third age-class of birds ringed as nestlings. The models can incorporate age-class-specific and year-specific variation in reporting rates and survival rates. Unlike intensive resighting studies at single sites, this approach does not confound death with emigration and provides estimates of survival which are representative of a larger geographical area. We implemented the models with SURVIV software, using likelihood-ratio tests to assess the significance of possible age and year effects on survival rates or reporting rates. We demonstrate this approach using a set of data on British-ringed Song Thrushes Turdus philomelos. In this case, we were unable to detect any age-class-specific or year-specific variation in reporting rates and, although the survival rates of first-year and adult Song Thrushes varied significantly between years, post-fledging survival did not show any detectable inter-annual variation. Song Thrushes ringed as nestlings had a 0.38 chance (95% CI = 0.30-0.45) of surviving the 63-day post-fledging period (here defined as the period separating the average dates of birds ringed as nestlings and birds ringed as independent first-year birds).en_US
dc.languageengen_US
dc.relation.ispartofBird Studyen_US
dc.titleA method for studying post-fledging survival rates using data from ringing recoveriesen_US
dc.typeArticleen_US
dc.identifier.emailThomson, DL: dthomson@hku.hken_US
dc.identifier.authorityThomson, DL=rp00788en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.scopuseid_2-s2.0-0033454645en_US
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-0033454645&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume46en_US
dc.identifier.issueSUPPL.en_US
dc.identifier.spageS104en_US
dc.identifier.epageS111en_US
dc.identifier.scopusauthoridThomson, DL=7202586830en_US
dc.identifier.scopusauthoridBaillie, SR=7005297384en_US
dc.identifier.scopusauthoridPeach, WJ=7003836801en_US

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