Annual Survival Rates of Adult and Immature Eastern Population Tundra Swans

Nichols, James D.; Bart, Jonathan; Limpert, Roland J.; Sladen, William J. L.; Hines, James E.

doi:10.2307/3808863

Cited by 50 publications

(53 citation statements)

References 10 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This method was further extended by Fabrizio et al (1999) to test for early tag loss, which occurred immediately after marking. We followed the methods of Nichols et al (1992) and Nichols and Hines (1993), except that we also used neckband presence or absence data obtained from hunters. We followed the methods of Nichols et al (1992) and Nichols and Hines (1993), except that we also used neckband presence or absence data obtained from hunters.…”

Section: Discussionmentioning

confidence: 99%

Neckband Retention for Lesser Snow Geese in the Western Arctic

Samuel¹,

Goldberg²,

Smith³

et al. 2001

The Journal of Wildlife Management

View full text Add to dashboard Cite

show abstract

Section: Discussionmentioning

confidence: 99%

Neckband Retention for Lesser Snow Geese in the Western Arctic

Samuel¹,

Goldberg²,

Smith³

et al. 2001

The Journal of Wildlife Management

View full text Add to dashboard Cite

show abstract

“…After average tag retention rates were calculated, survival estimates and their standard errors were corrected for tag loss following Nichols et al (1992):…”

Section: Correcting Survival Estimates For Tag Lossmentioning

confidence: 99%

Interannual variation in survival of juvenile Weddell seals (Leptonychotes weddellii) from McMurdo Sound, Antarctica: effects of cohort, sex and age

1999

View full text Add to dashboard Cite

Survival of juvenile Weddell seals Leptonychotes weddellii in McMurdo Sound, Antarctica was examined using 25 years of tagging and resighting data. Using mark±recapture models, we estimated age-and sex-speci®c apparent survival (survival confounded with emigration) rates of Weddell seals from birth to 6 years of age for 17 cohorts (1973±89). Survival in the ®rst 2 years of life (0.429 and 0.635 for the ®rst and second years, respectively) was lower than annual survival after 2 years of age (0.806), and was signi®cantly lower for males than for females. First-year survival of the 1978 and 1983 cohorts was signi®cantly lower than average ®rst-year survival across cohorts. Reproductive rate of adult females was signi®cantly correlated with ®rst-year survival in concurrent years, but not when ®rst-year survival lagged reproductive rate by 1 year nor with annual survival after 1 year of age. This correlation, however, was only signi®cant in male ®rst-year survival, possibly indicating that survival of males is more dependent on maternal or environmental conditions than survival of females. Average weaning mass varied signi®cantly among cohorts and was nearly correlated to reproductive rate of adult females. This may indicate that maternal condition is reduced in years of low reproduction although more data are needed to test this conclusively.

show abstract

“…metal leg band) is negligible . Information on probability of auxiliary mark loss can then be used to correct survival estimates a posteriori (Kremers 1988;Nichols et al 1992;Nichols and Hines 1993;Gauthier et al 2001). More recently, this has been integrated directly in capture-recapture models (Samuel et al 2001;Alisauskas and Lindberg 2002;Reed, Gauthier, and Pradel 2005;Reynolds et al 2009).…”

Section: Introductionmentioning

confidence: 99%

A Capture–Recapture Model with Double-Marking, Live and Dead Encounters, and Heterogeneity of Reporting Due to Auxiliary Mark Loss

Juillet

Choquet

Gauthier

et al. 2010

JABES

View full text Add to dashboard Cite

Capture-recapture (CR) models assume marked individuals remain at risk of capture, which may not be true if individuals lose their mark or emigrate definitively from the study area. Using a double-marking protocol, with a main and auxiliary mark, and both live encounters and dead recoveries at a large scale, partially frees CR models from this assumption. However, the auxiliary mark may fall off and its presence is often not mentioned when dead individuals are reported. We propose a new model to deal with heterogeneity of detection and uncertainty of the presence of an auxiliary mark in a multi-event framework. Our general model, based on a double-marking protocol, uses information from physical captures/recaptures, distant observations and main mark recoveries from dead animals. We applied our model to a 13-year data set of a harvested species, the Greater Snow Goose. We obtained seasonal survival estimates for adults of both sexes. Survival estimates differed between models where the presence of the auxiliary mark upon recovery was ignored versus those where the presence was accounted for. In the multi-event framework, seasonal survival estimates are no longer biased because the heterogeneity due to the presence of an auxiliary mark is accounted for in the estimation of recovery rates.Note: An illustration of the implementation of our model in E-SURGE is available online.

show abstract

Annual Survival Rates of Adult and Immature Eastern Population Tundra Swans

Cited by 50 publications

References 10 publications

Neckband Retention for Lesser Snow Geese in the Western Arctic

Neckband Retention for Lesser Snow Geese in the Western Arctic

Interannual variation in survival of juvenile Weddell seals (Leptonychotes weddellii) from McMurdo Sound, Antarctica: effects of cohort, sex and age

A Capture–Recapture Model with Double-Marking, Live and Dead Encounters, and Heterogeneity of Reporting Due to Auxiliary Mark Loss

Contact Info

Product

Resources

About