Body mass and lipid content of shorebirds overwintering on the south Texas coast
Donald H. White, C. A. Mitchell
1990, Journal of Field Ornithology (61) 445-452
Three species of shorebirds were collected at bimonthly intervals in 1979-1980, from the time of their arrival in early autumn to mid-February, on the south Texas coast. Female Long-billed Dowitchers (Limnodromus scolopaceus) and Western Sandpipers (Calidris mauri) were heavier (P < 0.05) than males, but the reverse was true for...
Temporal and spatial variation in survival rates of the tropical lizard Anolis limifrons
R.M. Andrews, J.D. Nichols
1990, Oikos (57) 215-221
We evaluated survival of the lizard, Anolis limifrons at two sites, AVA and Lutz, from 1976-1979 and during two periods at Lutz site, 1971-1976 vs 1976-1979, at Barro Colorado Island, Panama. Survival of adult females and males did not differ nor did survival of juveniles and adults. In contrast, survival...
The influence of social and endocrine factors on urine-marking by captive wolves (Canis lupus)
C. S. Asa, L.D. Mech, U.S. Seal, E.D. Plotka
1990, Hormones and Behavior (24) 497-509
Although serum hormones varied seasonally in all adult animals, only dominant male and female wolves urine-marked. Serum testosterone and urine-marking rates, which increased during the fall/winter breeding season, were positively correlated in both male and female dominant wolves. Estradiol, which increased in conjunction with proestrus and estrus, was not correlated...
Organochlorines and selenium in California night-heron and egret eggs
Harry M. Ohlendorf, Katherine C. Marois
1990, Environmental Monitoring and Assessment (15) 91-104
Exceptionally high concentrations of DDE were found in black-crowned night-heron (Nycticorax nycticorax) (geometric mean 8.62 μg g−1 wet wt.) and great egret (Casmerodius albus) (24.0 μg g−1) eggs collected from the Imperial Valley (Salton Sea), California in 1985. DDE concentrations in 14 of the 87 (16%)...
Toxicity of parathion to captive european starlings (Sturnus vulgaris) — Absence of seasonal effects
Barnett A. Rattner, C.E. Grue
1990, Environmental Toxicology and Chemistry (9) 1029-1033
The effects of season on the toxicity of the prototypic organophosphorus insecticide parathion was evaluated using adult European starlings (Sturnus vulgaris) housed in outdoor pens. Groups of birds received oral doses of parathion in the fall, winter, spring and summer. Median lethal dosage, and brain and plasma cholinesterase inhibition, were found to...
Geographic distribution of Micronycteris schmidtorum Sanborn (Chiroptera: Phyllostomidae)
C.E. Ascorra, D.E. Wilson, A. L. Gardner
1990, Proceedings of the Biological Society of Washington (104) 351-355
Taxonomic status of the coquette hummingbird of Guerrero, Mexico
Richard C. Banks
1990, The Auk (107) 191-192
An isolated population of small hummingbirds in the state of Guerrero, Mexico, was originally named as a subspecies (brachylopha) of the much more southerly Lophornis delattrei, the Rufous-crested Coquette (Moore 1949). The form was not reported again until rediscovered by Ornelas (1987) and remains known by only three male...
Breeding bird census: 10. Isolated tuliptree-beech forest
M. O'Brien, B.A. Dowell
1990, Journal of Field Ornithology (61) 33-34
Breeding bird census: 9. Mature tuliptree-oak forest
M. O'Brien, B.A. Dowell
1990, Journal of Field Ornithology (61) 32-33
Breeding bird census 1989: 11. Selectively logged mature tuliptree-oak forest
M. O'Brien
1990, Journal of Field Ornithology (61) 34-35
Bat mortality at gold mines in Arizona, California, and Nevada
D. R. Clark Jr., R. L. Hothem
1990, Bat Research News (31) 75 (abs)
Notes on longevity and flightlessness in bristle-thighed curlews
J.S. Marks, R. L. Redmond, P. Hendricks, R. B. Clapp, Robert E. Gill Jr.
1990, The Auk (107) 779-781
Bristle-thighed Curlews (Numenius tahitiensis) are among the least-studied shorebirds in the world. They have a highly restricted breeding range in western Alaska and winter exclusively on remote islands in the central and south Pacific (AOU 1983, Kessel 1989). The status of these birds is not known, but they are...
Survival of white-tailed deer fawns in relation to maternal age
L.D. Mech, R.E. McRoberts
1990, Journal of Mammalogy (71) 465-467
No abstract available....
Renesting by American woodcocks (Scolopax minor) in Maine
D.G. McAuley, J. R. Longcore, G.F. Sepik
1990, The Auk (107) 407-410
The American Woodcock (Scolopax minor) is one of the earliest ground-nesting birds in the northeastern United States. In Maine, nesting begins in early April when temperatures can drop below freezing and significant snowfall can accumulate. Nests are usually in open woods, where eggs are laid on the ground in...
Weights, productivity, and mortality of old white-tailed deer
M.E. Nelson, L.D. Mech
1990, Journal of Mammalogy (71) 689-691
No abstract available....
Fat scoring: Sources of variability
D.G. Krementz, G.W. Pendleton
1990, Condor (92) 500-507
Fat scoring is a widely used nondestructive method of assessing total body fat in birds. This method has not been rigorously investigated. We investigated inter- and intraobserver variability in scoring as well as the predictive ability of fat scoring using five species of passerines. Between-observer variation in scoring was...
Hawaii's Seabird Islands, No. 3: Moku-Ho'Oniki and Kanaha Rock, Molokai
C. B. Kepler, A.K. Kepler, T.R. Simons, B. Hobdy, P.M. Simons
1990, 'Elepaio (50) 75-81
No abstract available....
Capture-recapture estimation of prebreeding survival rate for birds exhibiting delayed maturation
J.D. Nichols, J. A. Spendelow, J.E. Hines
1990, Journal of Field Ornithology (61) 347-354
Many species of seabirds exhibit delayed maturity and do not return to the natal colony to breed for several years after fledging. Capture-recapture studies are frequently conducted at such breeding colonies and often include marking of young birds. However, because of the absence of these birds from the...
Ecology, behavior, and conservation of the Poo-uli (Melamprosops phaeosoma)
Stephen Mountainspring, T.L.C. Casey, C. B. Kepler, J. M. Scott
1990, The Wilson Bulletin (102) 109-122
Studies of the population density, habitat structure, foraging behavior, and activity budgets of the Poo-uli (Melamprosops phaeosoma) were conducted intermittently between 1973 and 1985 in a 50-ha study area in the upper Hanawi watershed, island of Maui, Hawaii. Poo-uli have apparently declined in density on this site by 80% from...
Wildlife toxicology. Part 3
D. J. Hoffman, Barnett A. Rattner, R.J. Hall
1990, Environmental Science & Technology (24) 276-283
No abstract available....
Physiological monitoring of gray wolves (Canis lupus) by radiotelemetry
T.J. Kreeger, V.B. Kuechle, L.D. Mech, J.R. Tester, U.S. Seal
1990, Journal of Mammalogy (71) 258-261
No abstract available....
Evidence of prey-caused mortality in three wolves
L. David Mech, Michael E. Nelson
1990, American Midland Naturalist (123) 207-208
Two alpha male wolves and a pup in separate incidents were killed by large prey, further indicating the degree of risk wolves face while hunting....
Relationship between age and mass among female white-tailed deer during winter and spring
L.D. Mech, R.E. McRoberts
1990, Journal of Mammalogy (71) 686-689
No abstract available. ...
Non-family wolf, Canis lupus, packs
L.D. Mech, M.E. Nelson
1990, Canadian Field-Naturalist (104) 482-483
No abstract available....
Possible use of wolf, Canis lupus, den over several centuries
L.D. Mech, J.M. Packard
1990, Canadian Field-Naturalist (104) 484-485
Radiocarbon dating of bones found at a wolf den on Ellesmere Island suggest it probably was used by wolves over 700 years ago....
