Effects of spring conditions on breeding propensity of Greater Snow Goose females

摘要: Reed, E. T., Gauthier, G. & Giroux, J.-F., 2004. Effects of spring conditions on breeding propensity Greater Snow Goose females. Animal Biodiversity and Conservation, 27.1: 35-46. Abstract females.— Breeding propensity, defined as the probability that a sexually mature adult will breed in given year, is an important determinant annual productivity. It also one least known demographic parameters vertebrates. We studied relationship between staging areas (a conservation hunt) grounds (spring snow cover) Geese (Chen caerulescens atlantica), long distance migrant breeds High Arctic. combined information from mark-recapture, telemetry, nest survey data to estimate over 7- year period. True temporal variation was considerable (mean: 0.574 (95% CI considering only process variation: 0.13 1.0)). Spring cover negatively related (� = -2.05 ± 0.96 SE) tended be reduced years with hunt -0.78 0.35). Nest densities colony fall ratios young:adults were good indices being slightly more precise. These results suggest encountered during pre-breeding period can have significant impact productivity Arctic-nesting birds.