Publications
These publications showcase the significant science conducted in our Science Centers.
Filter Total Items: 16785
Field and laboratory evaluation of the influence of copper-diquat on apple snails in southern Florida
The recent decline of apple snail (Pomacea paludosa) populations in canals surrounding Loxahatchee National Wildlife Refuge in southern Florida coincided with the use of copper-diquat for the control of the aquatic weed hydrilla (Hydrilla verticillata). Field and laboratory studies were designed to assess the effects of copper-diquat on apple snails, which are the primary food of the endangered sn
Authors
P. V. Winger, M.J. Imlay, W.E. McMillan, T.W. Martin, Jean E. Takekawa, W.W. Johnson
[Book review] A Guide to the Birds of Puerto Rico and the Virgin Islands, by Herbert A. Raffaele
No abstract available.
Authors
C.S. Robbins
[Book review] West Virginia Birds--Distribution and Ecology, by G. A. Hall
No abstract available.
Authors
C.S. Robbins
[Book review] Proceedings of the symposium on birds of the sea and shore
The symposium, held in 1979 at the University of Cape Town, commemorates the 50th anniversary of the Southern African Ornithological Society and the 150th anniversary of the University. Quite expectedly, participants were predominantly South African, with a few Europeans and Americans. Thirty-seven presentations, plus a summary, were given at the meeting, but only 26 papers were published; the res
Authors
R. Michael Erwin
[Book review] A guide to the birds of Puerto Rico and the Virgin Islands by H.A. Raffaele
No abstract available.
Authors
J. W. Wiley
Formalin preservation of avian blood for metal and DDE analysis
No abstract available.
Authors
Stanley N. Wiemeyer, John F. Moore, B. M. Mulhern
Occurrence and timing of second clutches in common terns
Eighteen pairs of Common Terns (Sterna hirundo) at three different colonies laid second clutches while still feeding young from their first broods. Seven clutches were laid before the chicks from the first brood fledged, and 11 were laid after the chicks from the first brood fledged. In each case, parents alternately fed chicks from the first brood and incubated the second clutch. Sixteen of the 1
Authors
D.A. Wiggins, R.D. Morris, I.C.T. Nisbet, T. W. Custer
The toxicity of chlorine to a common vascular aquatic plant
No abstract available.
Authors
C.H. Watkins, R.S. Hammerschlag
DDE in birds: Lethal residues and loss rates
Lethal brain residues of DDE2 were determined experimentally in four species of wild birds given dietary dosage of 1,500 ppm DDE until one-half had died, then sacrificing the survivors, chemically analyzing the tissues, and comparing results in dead birds and survivors. In all species, residues of 300 to 400 ppm of DDE in the brain were considered to show increasing likelihood of death from DDE, c
Authors
William H. Stickel, Lucille F. Stickel, R. A. Dyrland, Donald L. Hughes
Comparison of methods of preserving tissues for pesticide analysis
Formalin preservation, freezing, spoiling followed by freezing, and phenoxyethanol were compared in terms of concentrations of DDT, DDD, DDE, endrin, and heptachlor epoxide measured in brain, liver and carcass of birds fed dietary dosages of pesticides and in spiked egg homogenate. Phenoxyethanol proved to be an unsatisfactory preservative; the amount of ‘extractable lipid’ was excessive, and meas
Authors
W. H. Stickel, L. F. Stickel, R. A. Dyrland, D.L. Hughes