Hartley, Wayne C.

2 publications

O'Shea, Thomas J.; Hartley, Wayne C. (detail)
1995Reproduction and early-age survival of manatees at Blue Spring, upper St. Johns River, Florida. 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: 157-170. 4 tabs. 3 figs. Aug. 1995.
—Summarizes more than 20 years of data on mating, gestation, parturition, litter size, sex ratio, early survival of calves, age at first reproduction, birth intervals, duration of dependency, proportion of reproductive females, and longevity of reproduction of Blue Spring manatees, and compares them with data from Crystal River and the Atlantic coast.
Langtimm, Catherine A.; Beck, Cathy A.; Edwards, Holly H.; Fick-Child, Kristin J.; Ackerman, Bruce B.; Barton, Sheri L.; Hartley, Wayne C. (detail)
2004Survival estimates for Florida manatees from the photo-identification of individuals.
Mar. Mamm. Sci. 20(3): 438-463. 11 tabs. 2 figs. July 2004 (mailed July 28, 2004).
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