2002
DOI: 10.1046/j.1365-2656.2002.00613.x
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Sources of variation in survival and breeding site fidelity in three species of European ducks

Abstract: Summary 1.We used long-term capture-recapture-recovery data and a modelling approach developed by Burnham (1993) to test a priori predictions about sources of variation in annual survival rates and fidelity within a population of individually marked females in three species of European ducks from a breeding ground study site in Latvia. 2. True annual survival was higher for diving ducks (tufted duck 0·72, common pochard 0·65) and lower for northern shoveler (0·52). Survival of female diving ducks was positivel… Show more

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Cited by 88 publications
(107 citation statements)
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“…Using random effects models, our estimates of the long-term variance in survival are not confounded by sampling variance. Few other avian studies report estimates of demographic rates for more than 20 years (Peach et al 1994;Frederiksen and Bregnballe 2000;Blums et al 2002;Franklin et al 2002;Loison et al 2002;Robinson et al 2004). Franklin et al (2002) and Loison et al (2002) give estimates of temporal variance in survival corrected for sampling variance.…”
Section: Discussionmentioning
confidence: 99%
“…Using random effects models, our estimates of the long-term variance in survival are not confounded by sampling variance. Few other avian studies report estimates of demographic rates for more than 20 years (Peach et al 1994;Frederiksen and Bregnballe 2000;Blums et al 2002;Franklin et al 2002;Loison et al 2002;Robinson et al 2004). Franklin et al (2002) and Loison et al (2002) give estimates of temporal variance in survival corrected for sampling variance.…”
Section: Discussionmentioning
confidence: 99%
“…Because we tend to think of fidelity as a characteristic of ducks that reproduce successfully and are generally fit (e.g., Johnson et al 1992;Blums et al 2002b), we predicted the same directional relationships between the two covariates and fidelity as with survival. However, we expected the evidence to be weaker because fidelity was relatively high in these species (Blums et al 2002b), leaving relatively little variation to explain.…”
Section: Hypotheses and Predictionsmentioning
confidence: 94%
“…The focus of this paper is on annual survival probability, but the capture-recapture models that we employ also estimate fidelity, the probability that a bird alive in a particular spring does not permanently emigrate outside the study area (see Blums et al 2002b). Because we tend to think of fidelity as a characteristic of ducks that reproduce successfully and are generally fit (e.g., Johnson et al 1992;Blums et al 2002b), we predicted the same directional relationships between the two covariates and fidelity as with survival.…”
Section: Hypotheses and Predictionsmentioning
confidence: 99%
“…Nevertheless, apparent survival can be considered as a minimal estimate of true survival. Moreover, female ducks, including scoters and eiders, are highly philopatric to breeding areas and often nest within a few kilometers or less of previous nest sites [21][22][23]; thus, the bias resulting from permanent emigration likely was negligible.…”
Section: Assumptionsmentioning
confidence: 99%