Effect of rising sea level on runoff and groundwater discharge to coastal ecosystems
W.K. Nuttle, J. W. Portnoy
1992, Estuarine, Coastal and Shelf Science (34) 203-212
Rising sea level can cause an increase in surface runoff from coastal areas by raising the watertable and thus increasing the incidence of saturated soil conditions in low-lying areas. As surface runoff increases, less rainfall will infiltrate into the ground and groundwater discharge to the coast will decrease....
Water depth predicts redhead distribution in the lower Laguna Madre, Texas
C. A. Mitchell
1992, Wildlife Society Bulletin (20) 420-424
Daytime activity of wolves during winter in northeastern Minnesota
L.D. Mech
1992, Journal of Mammalogy (73) 570-571
Intermittent aerial observations of 405 radiocollared wolves from November 1968 through March 1989 showed the following percentages of activity: sleeping, 34%; resting, 31%; traveling, 28%, feeding, 6%; other, 2%....
The relationship between annual survival rate and migration distance in mallards: An examination of the time-allocation hypothesis for the evolution of migration
J.B. Hestbeck, J.D. Nichols, J.E. Hines
1992, Canadian Journal of Zoology (70) 2021-2027
Predictions of the time-allocation hypothesis were tested with several a posteriori analyses of banding data for the mallard (Anas platyrhynchos). The time-allocation hypothesis states that the critical difference between resident and migrant birds is their allocation of time to reproduction on the breeding grounds and survival on the nonbreeding...
Implanting radio transmitters in wintering canvasbacks
Glenn H. Olsen, F. Joshua Dein, G. Michael Haramis, Dennis G. Jorde
1992, Journal of Wildlife Management (56) 325-328
To conduct telemetry studies of wintering canvasbacks (Aythya valisineria) on Chesapeake Bay [Maryland, USA], we needed to devise a suitable method of radio transmitter attachment. We describe as aseptic, intraabdominal surgical technique, using the inhalation anesthetic isoflurane, to implant 20-g radio transmitters in free-ranging canvasbacks. We evaluated the technique over...
Capture-recapture models: Using marked animals to study population dynamics
J.D. Nichols
1992, BioScience (42) 94-102
No abstract available....
Breeding gadwalls, Anas strepera, near Yellowknife, Northwest Territories
M.A. Fournier, D.L. Trauger, J.E. Hines, D.G. Kay
1992, Canadian Field-Naturalist (106) 254-256
No abstract available....
Organochlorines and heavy metals in 17-year cicadas pose no apparent dietary threat to birds
D. R. Clark Jr.
1992, Environmental Monitoring and Assessment (20) 47-54
Organochlorine and heavy metal concentrations in 17-year cicadas from Prince Georges and Anne Arundel Counties, Maryland, were well below levels known to be harmful to birds. Cicadas contained concentrations of metals similar to or less than other local invertebrates except they contained more copper than did earthworms. Copper and lead...
The generic name for crested caracaras (Aves: Falconiformes)
Richard C. Banks, C.J. Dove
1992, Proceedings of the Biological Society of Washington (105) 420-425
A new lizard of the genus Arthrosaura (Teiidae) from southern Venezuela
M.A. Donnelly, R.W. McDiarmid, C.W. Myers
1992, Proceedings of the Biological Society of Washington (105) 821-833
A previously undescribed falcon flight display
D. H. Ellis
1992, Journal of Raptor Research (26) 42-43
Proximal nesting by the black-billed magpie and two raptors
D. H. Ellis
1992, Western Birds (23) 179-180
Organochlorines and mercury in osprey eggs from the eastern United States
D. J. Audet, D.S. Scott, Stanley N. Wiemeyer
1992, Journal of Raptor Research (26) 219-224
Organochlorine and mercury concentrations were determined in Osprey eggs collected from Maryland, Virginia, and Massachusetts during 1986-87. DDE concentrations were significantly different among locations. Median DDE concentrations did not decline significantly in eggs from Glenn L. Martin National Wildlife Refuge, Maryland, between 1973 and 1986. The median DDE residue for...
Winter habitat occurrence patterns of temperate migrant birds in Belize
D.K. Dawson, C.S. Robbins, J.R. Sauer
1992, El Pitirre (Society of Caribbean Ornithology) (5) 3-4
We used mist nets and point counts to sample bird populations in 61 sites in Belize during January-March of 1987-1991. Sites were classified as forest, second growth, woody agricultural crops (citrus, mango, cacao, and cashew), or non-woody agricultural crops (rice and sugar cane). We evaluated patterns of occurrence of wintering...
Talon grappling by Aplomado falcons and by golden eagles
D. H. Ellis
1992, Journal of Raptor Research (26) 41-42
A field test for competitive interactions among foraging stream fishes
Mary C. Freeman, G.D. Grossman
1992, Copeia (1992) 898-902
No abstract available....
Black-capped petrels in the mountains of Virginia
R. B. Clapp, J.F. Mehner
1992, Raven (63) 90-92
Constraints on productivity of wild Nene or Hawaiian geese Branta sandvicensis
P.C. Banko
1992, Wildfowl (43) 99-106
I investigated constraints on the productivity of wild Nene on Hawaii and Maui during 1978-81. These populations were composed largely of captive-reared birds. Recruitment of young was low. Of 140 breeding attempts, 36% resulted in successful nests and 7% produced fledglings. Annual productivity was limited...
Distribution of Ixodes dammini (Acari: Ixodidae) in residential lawns on Prudence Island, Rhode Island
M.C. Carroll, H. S. Ginsberg, K.E. Hyland, Renjie Hu
1992, Journal of Medical Entomology (29) 1052-1055
The distribution of nymphal Ixodes dammini Spielman, Clifford, Piesman & Corwin in residential lawns was assessed by flagging on Prudence Island, RI. The number of ticks per sample was five times greater in lawns adjacent to woods than in lawns adjacent to other lawns. Relative tick abundance was negatively correlated with distance...
The international component of managing biological diversity
M.S. Foster
1992, Transactions of the North American Wildlife and Natural Resources Conference (57) 321-329
Robustness of survival estimates for radio-marked animals
C.M. Bunck, Chiu-Lan Chen
1992, Biometric Bulletin (9) 8 (Abstrac
Telemetry techniques are often used to study the survival of birds and mammals; particularly whcn mark-recapture approaches are unsuitable. Both parametric and nonparametric methods to estimate survival have becn developed or modified from other applications. An implicit assumption in these approaches is that the probability of re-locating an animal with...
The shiny cowbird in the West Indian region--a future threat for Jamaica and the Cayman Islands?
A. Cruz, J. W. Wiley, T.K. Nokamura, W. Post
1992, Gosse Bird Club Broadsheet (58) 7-10
Seasonal patterns of weight, hematology, and serum characteristics of free-ranging female white-tailed deer in Minnesota
G. D. DelGiudice, L.D. Mech, K. E. Kunkel, E.M. Gese, U.S. Seal
1992, Canadian Journal of Zoology (70) 974-983
Weights, hematology, and serum profIles of white-tailed does in the central Superior National Forest of northeastern Minnesota were examined year-around to determine seasonal patterns of nutritional condition and metabolism. Deer were initially captured by Clover trap or rocket net. Between 15 February 1989 and 23 January 1990, we...
Distribution and color variation of gyrfalcons in Russia
D. H. Ellis, Catherine H. Ellis, G.W. Pendleton, A.V. Panteleyev, I.V. Rebrova, Y.M. Markin
1992, Journal of Raptor Research (26) 81-88
Gyrfalcon (Falco rusticolus) museum specimens in Moscow (73) and St. Petersburg (132) were divided into four color classes (gray, light gray, white gray, and white) and four longitudinal belts representing major physiographic regions of northern Russia. Gray variants predominated in the west and central regions. White birds were most common...
Application of DNA fingerprinting to the recovery program of the endangered Puerto Rican parrot
M.K. Brock, B.N. White
1992, Proceedings of the National Academy of Sciences (89) 11121-11125
The Puerto Rican parrot was reduced to 13 animals in 1975 and as a conservation measure, a captive population was established from a few founders taken from the wild between 1973 and 1983. The number of successful breeding pairs in captivity has been !ow, and the captive breeding...
