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Survival of young American alligators on a Florida lake

Journal of Wildlife Management

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Abstract

A capture-recapture study was conducted on Orange Lake, Florida, from 1979 through 1984 to estimate survival rates of young in an American alligator (Alligator mississippiensis) populations. Hatchlings remained together in sibling groups (pods) for at least their 1st year and then began to disperse during their 2nd spring and summer. Mortality through mid-November of their 1st year was negligible. Jolly-Seber (JS) survival estimates of hatchlings for 6 and 12 months were 76 and 41%, respectively. The 2-year JS estimate for the 1980 cohort was 8%. Minimum-Known-Alive (MKA) survival values were 72 and 46% of JS estimates for 6 months and 1 year of age. Survival during the 2nd 6 months of life (spring-summer) tended to be lower than survival during the 1st 6 months (fall-winter).

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Survival of young American alligators on a Florida lake
Series title:
Journal of Wildlife Management
Volume
51
Issue:
4
Year Published:
1987
Language:
English
Contributing office(s):
Patuxent Wildlife Research Center
Description:
931-937
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
First page:
931
Last page:
937
Number of Pages:
7