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Local survival in Semipalmated Sandpipers Calidris pusilla breeding at La Pérouse Bay, Canada
Author(s) -
SANDERCOCK BRETT K.,
GRATTOTREVOR CHERI L.
Publication year - 1997
Publication title -
ibis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.933
H-Index - 80
eISSN - 1474-919X
pISSN - 0019-1019
DOI - 10.1111/j.1474-919x.1997.tb04629.x
Subject(s) - calidris , bay , sandpiper , biology , philopatry , survival rate , ecology , vital rates , zoology , demography , geography , predation , population , archaeology , medicine , biological dispersal , population growth , surgery , sociology
A hierarchical modelling approach was used to examine adult and age‐specific survival in an 8‐year study of breeding Semipalmated Sandpipers Calidris pusilla at La Pérouse Bay, Canada. The survival of adult sandpipers was best described by a model with time dependence in local survival rate and probability of recapture. Annual variation in the local survival rate of adults was not correlated with nest success, timing of breeding or “return rates” and was not biased by an effect of first capture. Local survival rate of adult females (0.56, 95% c.l. = 0.51‐0.61) was consistently lower than that of adult males (0.61, 95% c.l. = 0.56‐0.66); these estimates were comparable with data from other shorebirds. The survival of returning young was best fitted by a model with both age and time dependence in local survival rate and probability of recapture. We evaluated our estimates of local survival rate with reference to patterns of breeding fidelity and philopatry in Semipalmated Sandpipers and other shorebirds.