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Organochlorine Residues and Reproduction in the Big Brown Bat
Donald R. Clark, Jr. and Thair G. Lamont
The Journal of Wildlife Management
Vol. 40, No. 2 (Apr., 1976), pp. 249-254
Stable URL: http://www.jstor.org/stable/3800422
Page Count: 6
You can always find the topics here!Topics: Polychlorinated biphenyls, Bats, Reproduction, Female animals, Geometric mean, Correlations, Data ranges, Litter weight, Wildlife, Barns
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Twenty-six pregnant big brown bats (Eptesicus fuscus) were collected at Montpelier Barn, Laurel, Maryland, and kept in individual cages until parturition. Seven young in 5 litters were born dead; 21 litters contained only living young. Polychlorinated biphenyl (PCB, Aroclor 1260) crossed the placenta two to three times more readily than did DDE. Concentrations of PCB were significantly greater in litters with dead young than in litters where both young were born alive. The concentration of PCB in adult females plus their litters declined with increasing age of the female.
The Journal of Wildlife Management © 1976 Wiley