Publications
These publications showcase the significant science conducted in our Science Centers.
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Secondary poisoning of owls by anticoagulant rodenticides
Anticoagulants-compounds that prevent clotting of the blood-are extensively used for control of small mammal pests. The potential secondary hazards of 6 anticoagulant rodenticides to birds of prey were examined in this study. Whole rats or mice were killed with each anticoagulant and were fed to 1-3 species of owls. Owls died of hemorrhaging after feeding on rats killed with bromadiolone, brodifac
Authors
Vivian M. Mendenhall, L.F. Pank
Demography of the Everglade kite: Implications for population management
Simple deterministic and stochastic population modelsi are used to examine the demographic patterns of the Everglade Kite population. These efforts are directed at making inferences about the evolution of the kite life-history pattern, and at providing guidelines for the management of the kite population. The Everglade Kite has apparently evolved high adult survival rates, in partial response to
Authors
J. D. Nichols, Gary L. Hensler, P.W. Sykes
Sex-specific differences in winter distribution patterns of canvasbacks
Winter band recovery distributions of North American Canvasbacks (Aythya valisineria) suggested that males and females exhibit comparable degrees of fidelity to general wintering areas. Of birds banded during the winter, the proportion of males was found to be higher in northern than in southern areas. Winter band recovery distributions of birds banded in particular areas during the summer were
Authors
J. D. Nichols, G. M. Haramis
Inferences regarding survival and recovery rates of winter-banded canvasbacks
Banding and recovery data from 3 populations of winter-banded canvasbacks (Aythya valisineria) were analyzed and survival and recovery rates were estimated. Sex-specific differences in these rates were detected in some populations, and lower survival rates were exhibited by females. Some geographic variation in survival rates was evident, suggesting that canvasbacks should not be managed strictl
Authors
J. D. Nichols, G. M. Haramis
Consistency in habitat preference of forest bird species
The important management conclusion that follows from our results is that the habitat requirements of most forest bird species, although quite specific for each species, apply generally throughout their breeding ranges. Thus a habitat management program that proves beneficial in one part of the breeding range of a species has a high likelihood of success in an area hundreds of kilometers away.
Authors
B.R. Noon, D.K. Dawson, D.B. Inkley, C.S. Robbins, S.H. Anderson
Organochlorine and mercury residues in snakes from Pilot and Spider Islands, Lake Michigan--1978
No abstract available.
Authors
G. H. Heinz, S. D. Haseltine, R.J. Hall, A. J. Krynitsky
Additional records of black-legged kittiwakes from the northwestern Hawaiian Islands
No abstract available.
Authors
R. B. Clapp, C.S. Robbins, K.W. Kenyon
Canine tooth wear in captive little brown bats
Upper canine teeth of little brown bats Myotis lucifugus lucifugus held in stainless steel wire mesh cages underwent severe wear which exceeded that observed previously in caged big brown bats, Eptesicus fuscus fuscus. This suggests a relationship between amount of wear and size of the caged bats with damage increasing as size decreases. Rapid wear of canine teeth by little brown bats resembled th
Authors
Donald R. Clark