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Reproduction and early-age survival of manatees at Blue Spring, Upper St. Johns River, Florida Reproduction and early-age survival of manatees at Blue Spring, Upper St. Johns River, Florida

We summarize reproduction of adults and survival of calves and subadult Florida manatees (Trichechus manatus latirostris) that were identified in winter at Blue Spring on the upper St. Johns River in Florida. Some records span more than 20 years, but most are from 15-year continuous annual observations during winter 1978-79 through winter 1992-93. Fifty-seven, first-year calves were...
Authors
Thomas J. O'Shea, W.C. Hartley

Reproduction in free- ranging Florida manatees Reproduction in free- ranging Florida manatees

Abstract not supplied at this time
Authors
G. B. Rathbun, J.P. Reid, R. K. Bonde, J. A. Powell

Dicofol and DDT residues in lizard carcasses and bird eggs from Texas, Florida, and California Dicofol and DDT residues in lizard carcasses and bird eggs from Texas, Florida, and California

Dicofol is an organochlorine agricultural pesticide used to control mites. The principal commercial dicofol product is known as Kelthane TM. More than 70% of dicofol product (about 3 million Ib or 1.4 million kg) sold annually in the U.S. is applied in California, Arizona, Texas, and Florida. Florida citrus and California cotton receive more than half the total (Clark 1990). In...
Authors
D.R. Clark, Edward L. Flickinger, Donald H. White, R. L. Hothem, A. A. Belisle

Formation and regression of the corpus luteum of the American alligator Formation and regression of the corpus luteum of the American alligator

Luteal morphology of the American alligator is unique when compared to other reptiles but is similar to that of its phylogenetic relatives, the birds. The theca is extensively hypertrophied, but the granulosa never fills the cavity formed following the ovulation of the ovum. The formation of the corpus luteum (CL) is correlated with elevated plasma progesterone concentrations, which...
Authors
L. J. Guillette, A.R. Woodward, Q. You-Xiang, M.C. Cox, J.H. Matter, T. S. Gross

Identification of sex in hatchling loggerhead turtles (Caretta caretta) by analysis of steroid concentrations in chorioallantoic/amniotic fluid Identification of sex in hatchling loggerhead turtles (Caretta caretta) by analysis of steroid concentrations in chorioallantoic/amniotic fluid

A major difficulty in sea turtle conservation is the inability to nonlethally and noninvasively identify the sex of hatchling sea turtles. Traditional sexing techniques such as plasma sex steroid quantification cannot be applied to hatchlings without sacrificing the hatchlings or utilizing invasive procedures. This paper presents a technique for sexing hatchling sea turtles by analysis...
Authors
T. S. Gross, D.A. Crain, K.A. Bjorndal, A.B. Bolten, R. Carthy

Wind damage effects of Hurricane Andrew on mangrove communities along the southwest coast of Florida, USA Wind damage effects of Hurricane Andrew on mangrove communities along the southwest coast of Florida, USA

On August 24, 1992, Hurricane Andrew downed and defoliated an extensive swath of mangrove trees across the lower Florida peninsula. Permanent field sites were established to assess the extent of forest damage and to monitor the rate and process of forest recovery. Canopy trees suffered the highest mortality particularly for sites within and immediately north of the storm's eyewall. The...
Authors
T.W. Doyle, T. J. Smith, M. B. Robblee

Marine turtles in the Southeast Marine turtles in the Southeast

Five species of marine turtles frequent the beaches and offshore waters of the southeastern United States: loggerhead (Caretta caretta), green (Chelonia mydas), Kemp's ridley (Lepidochelys kempii), leatherback (Dermochelys coriacea), and hawksbill (Eretmochelys imbricata). All five are reported to nest, but only the loggerhead and green turtle do so in substantial numbers. Most nesting...
Authors
C. Kenneth Dodd

[Book review] Antarctic Seals: Research Methods and Techniques, edited by R. M. Laws [Book review] Antarctic Seals: Research Methods and Techniques, edited by R. M. Laws

Review of: Antarctic Seals: Research Methods and Techniques. Edited by R. M. LAWS. Cambridge: Cambridge University Press (1993). Pp. xxii+390. Price $84.95.
Authors
C. J. Deutsch

Caranigidae Caranigidae

No abstract available.
Authors
William F. Smith-Vaniz
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