Scaling in sensitivity analysis
W.A. Link, P.F. Doherty Jr.
2002, Ecology (83) 3299-3305
Population matrix models allow sets of demographic parameters to be summarized by a single value λ, the finite rate of population increase. The consequences of change in individual demographic parameters are naturally measured by the corresponding changes in λ; sensitivity analyses compare demographic parameters on the basis of these changes....
Schizochromism in a Peregrine Falcon from Arizona
D. H. Ellis, L.W. Oliphant, J.K. Fackler
2002, Journal of Raptor Research (36) 200-202
Herein, we report the first record of schizochromism in the Peregrine Falcon (Falco peregrinus). Our example is a nestling from southern Arizona. The lack of dark brown pigment in this bird made it closely resemble the blue-gray plumage of an adult. Near fledging time, the bird was eaten...
A hierarchical analysis of population change with application to Cerulean Warblers
W.A. Link, J.R. Sauer
2002, Ecology (83) 2832-2840
Estimation of population change from count surveys is complicated by variation in quality of information among sample units, by the need for covariates to accommodate factors that influence detectability of animals, and by multiple geographic scales of interest. We present a hierarchical model for estimation of population change from the...
Individual foraging strategies of kleptoparasitic Roseate Terns
D. A. Shealer, Jeffrey A. Spendelow
2002, Waterbirds (25) 436-441
We describe the kleptoparasitic behavior of ten adult Roseate Terns (Sterna dougallii) breeding at a colony at Falkner Island, Connecticut, USA between 1995 and 1998. These birds were considered habitual kleptoparasites because they stole fish repeatedly from other terns in every year they were observed at the site. No other...
Global climate change and vector-borne diseases
H. S. Ginsberg
2002, RINHewS: Newsletter of the Rhode Island Natural History Survey (9) 2-3
Global warming will have different effects on different diseases because of the complex and idiosynchratic interactions between vectors, hosts, and pathogens that influence transmission dynamics of each pathogen. Human activities, including urbanization, rapid global travel, and vector management, have profound effects on disease transmission that can operate on more...
Estimating state-transition probabilities for unobservable states using capture-recapture/resighting data
W. L. Kendall, J.D. Nichols
2002, Ecology (83) 3276-3284
Temporary emigration was identified some time ago as causing potential problems in capture-recapture studies, and in the last five years approaches have been developed for dealing with special cases of this general problem. Temporary emigration can be viewed more generally as involving transitions to and from an unobservable state,...
Rediscovery of Enders's small-eared shrew, Cryptotis endersi (Insectivora: Soricidae), with a redescription of the species
R. H. Pine, N. Woodman, R. M. Timm
2002, Mammalian Biology (67) 372-377
No abstract available....
Longevity records and survival estimate of birds in a Guatemala rain forest
C.S. Robbins, B. Dowell, J. Hines
2002, Program and Abstracts, Association of Field Ornithologists and the Wilson Ornithological Society, Fort Myers, Florida abstract 5
Birds were mist-netted for ten consecutive 'winter' seasons at two sites on Cerro San Gil and for three to nine seasons at eight other sites on the mountain. Sixteen nets were used at each site for three days; net locations were the same each year. From 1,255 subsequent-year...
Tracking surf scoters
Matthew C. Perry
2002, Birdscapes (Spring-Summer) 21
No abstract available....
Intermittent fasting during winter and spring affects body composition and reproduction of a migratory duck
P.S. Barboza, Dennis G. Jorde
2002, Journal of Comparative Physiology B: Biochemical, Systemic, and Environmental Physiology (172) 419-434
We compared food intake, body mass and body composition of male and female black ducks (Anas rubripes) during winter (January-March). Birds were fed the same complete diet ad libitum on consecutive days each week without fasting (control; nine male; nine female) or with either short fasts (2 day.week-1; nine...
Producing progeny from endangered birds of prey: Treatment of urine-contaminated semen and a novel intramagnal insemination approach
J.M. Blanco, G.F. Gee, D.E. Wildt, A.M. Donoghue
2002, Journal of Zoo and Wildlife Medicine (33) 1-7
Wild raptors brought into an ex situ environment often have poor semen quality that is further compromised by urine contamination. Generally, it is believed that in birds, artificial insemination into the cloaca or caudal vagina of females requires large doses of high-quality spermatozoa to maximize fertility. In an effort to...
Using Christmas Bird Count data in analysis of population change
J.R. Sauer, W.A. Link
2002, American Birds 10-14
The scientific credibility of Christmas Bird Count (CBC) results depend on the development and implementation of appropriate methods of statistical analysis. The key to any successful analysis of CBC data is to begin with a careful review of how the limitations of the data are likely to influence...
Ecological and evolutionary traps
Martin A. Schlaepfer, M.C. Runge, P. W. Sherman
2002, Trends in Ecology and Evolution (17) 474-480
Organisms often rely on environmental cues to make behavioral and life-history decisions. However, in environments that have been altered suddenly by humans, formerly reliable cues might no longer be associated with adaptive outcomes. In such cases, organisms can become 'trapped' by their evolutionary responses to the cues and experience...
The horse and deer flies (Diptera: Tabanidae) of Rhode Island
K. Bartlett, S.R. Alm, R. LeBrun, H. Ginsberg
2002, Annals of the Entomological Society of America (95) 547-551
The Tabanidae of Rhode Island were surveyed using Rhode Island canopy traps placed at 20 locations in the state during the summers of 1999 and 2000. In total, 5,120 flies were collected, which included 55 species in the genera Chrysops, Hybomitra, Tabanus, Merycomyia, and Stonemyia. Distributional and ecological...
FrogwatchUSA
Sam Droege
2002, People, Land, and Water (9) 35-35
full text: Frogs and toads are perhaps the most approachable and available of all our wildlife. In many, if not most places, they are abundant. In wetter parts of the East, almost anyone outside on a warm rainy night in spring will hear their dream-like calls, bellows,...
Louisiana Ground-Water Map No.13: Hydrogeology and Potentiometric Surface of the Sparta Aquifer in Northern Louisiana, October 1996
Jeffrey A. Brantly, Ronald C. Seanor, Kaycee L. McCoy
2002, Water-Resources Investigations Report 02-4053
This report describes the thickness and areal extent of the Sparta aquifer, identifies sands within the fresh-water extent of the aquifer, and presents data and a map that illustrate the generalized potentiometric surface (water levels) during October 1996. The report includes a detailed geophysical log, structure contour maps, hydrogeologic sections,...
Effects of management practices on grassland birds: Lesser Prairie-Chicken
Brent E. Jamison, Jill A. Dechant, Douglas H. Johnson, Lawrence D. Igl, Christopher M. Goldade, Betty R. Euliss
2002, Report
Information on the habitat requirements and effects of habitat management on grassland birds were summarized from information in more than 4,000 published and unpublished papers. A range map is provided to indicate the breeding distribution of Lesser Prairie-Chicken in the United States and southern Canada. Although birds frequently are observed...
Using high hydraulic conductivity nodes to simulate seepage lakes
Mary P. Anderson, Randall J. Hunt, James T. Krohelski, Kuopo Chung
2002, Groundwater (40) 117-122
In a typical ground water flow model, lakes are represented by specified head nodes requiring that lake levels be known a priori. To remove this limitation, previous researchers assigned high hydraulic conductivity (K) values to nodes that represent a lake, under the assumption that the simulated head at the nodes...
French Frigate Shoals reef health survey
Thierry M. Work, Steve L. Coles, Robert Rameyer
2002, Report, Coral Health and Disease in the Pacific: Vision for Action. NOAA Technical Memorandum NOS NCCOS 97 and CRCP 7
French Frigate Shoals (FFS) is one of the refugia comprising the Northwest Hawaiian Islands National Wildlife Refuge (NWHINWR). French Frigate Shoals was discovered by La Perouse in the late 18th century; however, the atoll was most notable as a naval air station during World War II when the US Navy...
Managing wetlands for waterbirds: Integrated approaches
2002, Waterbirds (25)
Identification and synthetic modeling of factors affecting American black duck populations
Michael J. Conroy, Mark W. Miller, James E. Hines
2002, Book, Wildlife Monographs
We reviewed the literature on factors potentially affecting the population status of American black ducks (Anas rupribes). Our review suggests that there is some support for the influence of 4 major, continental-scope factors in limiting or regulating black duck populations: 1) loss in the quantity or quality of breeding habitats;...
Waterbird population estimates
2002, Wetlands International global series 12.
Royal Tern: Sterna maxima
P. A. Buckley, F. G. Buckley
2002, Birds of North America No. 700
Wildlife habitat modeling in an adaptive framework: The role of alternative models
M.J. Conroy, C. T. Moore
J. Michael Scott, Patricia J. Heglund, Michael L. Morrison, Jonathan B. Haufler, William A. Wall, editor(s)
2002, Book chapter, Predicting species occurrences : issues of accuracy and scale
Statistical mapping of count survey data
J. Andrew Royle, W.A. Link, J.R. Sauer
J. Michael Scott, Patricia J. Heglund, Michael L. Morrison, Jonathan B. Haufler, William A. Wall, editor(s)
2002, Book chapter, Predicting species occurrences : issues of accuracy and scale
We apply a Poisson mixed model to the problem of mapping (or predicting) bird relative abundance from counts collected from the North American Breeding Bird Survey (BBS). The model expresses the logarithm of the Poisson mean as a sum of a fixed term (which may depend on habitat variables)...
