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O'Shea, Thomas J.; Langtimm, Catherine A.
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1995 |
Estimation of survival of adult Florida manatees in the Crystal River, at Blue Spring, and on the Atlantic coast. In: T. J. O'Shea, B. B. Ackerman, & H. F. Percival (eds.), Population biology of the Florida manatee (q.v.).
Information & Technology Rept.
(U.S. Dept. Interior, Natl. Biological Service) (vi + 289)
1: 194-222. 9 tabs. 3 figs. 1 app. Aug. 1995.
–Abstr. in O'Shea et al. (1992: 21). Application of Cormack-Jolly-Seber open population models to manatee photoidentification databases and radiotelemetry studies indicated that survival at Crystal River and Blue Spring may be high enough for population growth, while the Atlantic Coast population may be in decline. Adult survivorship seemed to be constant with age in all three study groups.
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Langtimm, Catherine A.; O'Shea, Thomas J.; Pradel, R.; Beck, Cathy A.
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1998 |
Estimates of annual survival probabilities for adult Florida manatees (Trichechus manatus latirostris).
Ecology
79(3): 981-997. 5 tabs. 5 figs.
–Using a mark-recapture approach based on the manatee photo-identification database, adult survival probabilities were found to be high and constant at Crystal River and Blue Spring, but significantly lower and variable on the Atlantic coast. Survival did not differ between sexes, nor was evidence of senescence detected.
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