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Reproductive parameters for Double-crested Cormorants.

Location(1)Year(2)Clutch size mean (SE or SD)Hatching success (%)Annual reproductive success(3)(young/nest) mean (SE or SD)Source
Quebec19753.0 (0.95)0.98(4)Ellison and Cleary 1978
19773.4 (0.81)732.3 (1.2)(4)Pilon et al. 1983a
19803.3 (0.09)(5)2.59 (1.27)McNeil and Léger 1987
S. Carolina19892.7 (1.08)652.47 (0.93)Post and Seals 1991b
Great Lakes19700.15Postupalsky 1978b
19722.40.06-0.11Weseloh et al. 1983
19741.1Postupalsky 1978b
19793.8521.5Blomme 1981
1981, 19852.28Weseloh and Ewins 1994
19883.61.93Weseloh and Ewins 1994
19912.1Weseloh et al. 1995b
Manitoba19871.19 (0.99)Hobson et al. 1989
Alberta19783.53591.58Brechtel 1983
Utah19723.9 (0.26)54Mitchell 1977
British Columbia19584.1602.5Drent et al. 1964
19722.9883.52.0Van Der Veen 1973
Washington19843.0<0.29Henny et al. 1989
California19690.01Gress et al. 1973
19883.2 (0.1)76.51.27 (0.06)(4)Stenzel et al. 1995