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Page 2517, results 62901 - 62925

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Publication Extents

Not all publications have extents, not all extents are completely accurate
Birds of Ecuador
M. Gustafson
2005, The Wilson Bulletin (117) 110-111
No abstract available....
Communicating Leave No Trace ethics and practices: Efficacy of two-day trainer courses
M.L. Daniels, J. L. Marion
2005, Journal of Park and Recreation Administration (23) 1-19
Heavy recreational visitation within protected natural areas has resulted in many ecological impacts. Many of these impacts may be avoided or minimized through adoption of low-impact hiking and camping practices. Although ?No Trace? messages have been promoted in public lands since the 1970s, few studies have documented the...
Birds of the Baja California Peninsula: Status, distribution, and taxonomy
Mary Gustafson
2005, The Wilson Bulletin (117) 208-209
Birds of the Baja California Peninsula: Status, Distribution, and Taxonomy. By Richard A. Erickson and Steve N. G. Howell (Eds.). American Birding Association Monographs in Field Ornithology No. 3, Colorado Springs, Colorado. 2001: 261 pp. ISBN: 1878788396. $39.95 (paper). This volume is a collection of eight papers and five appendices...
Effects of hunting on survival of American woodcock in the Northeast
Daniel G. McAuley, Jerry R. Longcore, David A. Clugston, R. Bradford Allen, A. Weik, Simon Williams, J. Dunn, B. Palmer, K. Evans, W. Staats, Greg F. Sepik, W. Halteman
2005, Journal of Wildlife Management (69) 1565-1577
Numbers of American woodcock (Scolopax minor) males counted on the annual singing ground survey (SGS) have declined over the last 35 years at an average rate of 2.3% per year in the Eastern Region and 1.8% per year in the Central Region. Although hunting was not thought to be...
Home range and survival of breeding painted buntings on Sapelo Island, Georgia
E. G. Springborn, J. Michael Meyers
2005, Wildlife Society Bulletin (33) 1432-1439
The southeastern United States population of the painted bunting (Passerina ciris) has decreased approximately 75% from 1966–1996 based on Breeding Bird Survey trends. Partners in Flight guidelines recommend painted bunting conservation as a high priority with a need for management by state and federal agencies. Basic information on home range...
Modeling association among demographic parameters in analysis of open population capture-recapture data
William A. Link, Richard J. Barker
2005, Biometrics (61) 46-54
We present a hierarchical extension of the Cormack–Jolly–Seber (CJS) model for open population capture–recapture data. In addition to recaptures of marked animals, we model first captures of animals and losses on capture. The parameter set includes capture probabilities, survival rates, and birth rates. The survival rates and birth rates are...
Camera-trap study of ocelot and other secretive mammals in the northern Pantanal
M. Trolle, Marc Kery
2005, Mammalia (69) 409-416
Reliable information on abundance of the ocelot (Leopardus pardalis) is scarce. We conducted the first camera-trap study in the northern part of the Pantanal wetlands of Brazil, one of the wildlife hotspots of South America. Using capture-recapture analysis, we estimated a density of 0.112 independent individuals per km2 (SE 0.069). We...
From the Field: Carbofuran detected on weathered raptor carcass feet
Nimish B. Vyas, James W. Spann, Craig S. Hulse, W. Bauer, S. Olson
2005, Wildlife Society Bulletin (33) 1178-1182
The cause of death for raptors poisoned at illegal carbofuran-laced predator baits is often not confirmed because the carcass matrices that are conventionally analyzed are not available due to decomposition and scavenging. However, many such carcasses retain intact feet that may have come into contact with carbofuran. Eastern screech owls...
Agronomie implications of waterfowl management in Mississippi ricefields
Scott W. Manley, Richard M. Kaminski, Kenneth J. Reinecke, Patrick D. Gerard
2005, Wildlife Society Bulletin (33) 981-992
Ricefields are important foraging habitat for waterfowl and other waterbirds in several North American wintering areas, including the Mississippi Alluvial Valley (MAV). Rice growers are likely to adopt management practices that provide habitat for waterfowl if agronomic benefits also occur. Therefore, we conducted a replicated field experiment during autumn through...
Using the North American Breeding Bird Survey as a tool for conservation: A critique of Bart et al. (2004)
John R. Sauer, William A. Link, James D. Nichols, J. Andrew Royle
2005, Journal of Wildlife Management (69) 1321-1326
Bart et al. (2004) develop methods for predicting needed samples for estimation of long-term trends from Count survey data, and they apply these methods to the North American Breeding Bird Survey (BBS). They recommend adding approximately 40% more survey routes ill the BBS to allow for estimation of long-term...
Impact of special early harvest seasons on subarctic-nesting and temperate-nesting Canada geese
S. E. Sheaffer, William L. Kendall, E. Frank Bowers
2005, Journal of Wildlife Management (69) 1494-1507
Dramatic changes in wintering distributions of Canada geese (Branta canadensis) have occurred over the past 50 years in eastern North America. Declines in numbers of subarctic-nesting geese wintering in southern states, and increases in numbers wintering in northern regions, have resulted in a northern shift in winter distributions. In...
Evaluation of the landscape surrounding northern bobwhite nest sites: A multiscale analysis
Craig White, Sara H. Schweitzer, Clinton T. Moore, I. B. Parnell, L. A. Lewis-Weis
2005, Journal of Wildlife Management (69) 1528-1537
Implementation of the Conservation Reserve Program (CRP) altered the interspersion and abundance of patches of different land-cover types in landscapes of the southeastern United States. Because northern bobwhites (Colinus virginianus) are experiencing significant population declines throughout most of their range, including the Southeast, it is critical to understand the...
Efficacy of selected coccidiostats in sandhill cranes (Grus canadensis) following challenge
James W. Carpenter, Meliton N. Novilla, Jeffrey Hatfield
2005, Journal of Zoo and Wildlife Medicine (36) 391-400
The anticoccidial efficacy of amprolium, clazuril, and monensin were studied in sandhill cranes (Grus canadensis) infected with a mixture of Eimeria spp. oocysts. Five groups of four 1-day-old sandhill crane chicks were maintained on a crumbled ration containing no coccidiostat, amprolium at 2.2 ppm, clazuril at 1.1 ppm, clazuril at...
Designing occupancy studies: General advice and allocating survey effort
Darryl I. MacKenzie, J. Andrew Royle
2005, Journal of Applied Ecology (42) 1105-1114
1.The fraction of sampling units in a landscape where a target species is present (occupancy) is an extensively used concept in ecology. Yet in many applications the species will not always be detected in a sampling unit even when present, resulting in biased estimates of...
Modeling anuran detection and site occupancy on North American Amphibian Monitoring Program (NAAMP) routes in Maryland
Linda Weir, J. Andrew Royle, Priya Nanjappa, Robin E. Jung
2005, Journal of Herpetology (39) 627-639
One of the most fundamental problems in monitoring animal populations is that of imperfect detection. Although imperfect detection can be modeled, studies examining patterns in occurrence often ignore detection and thus fail to properly partition variation in detection from that of occurrence. In this study, we used anuran calling survey...
Surface elevation dynamics in a regenerating mangrove forest at Homebush Bay, Australia
K. Rogers, N. Saintilan, D. Cahoon
2005, Wetlands Ecology and Management (13) 587-598
Following the dieback of an interior portion of a mangrove forest at Homebush Bay, Australia, surface elevation tables and feldspar marker horizons were installed in the impacted, intermediate and control forest to measure vertical accretion, elevation change, and shallow subsidence. The objectives of the study were to determine current vertical...
Winter status of White-eyed Vireos in northeastern Louisiana
S.G. Somershoe, D.J. Twedt
2005, North American Bird Bander (30) 101-103
In December 2004, February 2005, and June 2005, we recaptured a White-eyed Vireo (Vireo griseus) that was banded on 19 May 2004 at the same location on the Tensas River National Wildlife Refuge, Madison Parish, LA. This is the first documented permanent resident White-eyed Vireo outside of resident populations...
Groundwater control of mangrove surface elevation: shrink and swell varies with soil depth
K.R.T. Whelan, T. J. Smith III, Donald R. Cahoon, J.C. Lynch, G.H. Anderson
2005, Estuaries (28) 833-843
We measured monthly soil surface elevation change and determined its relationship to groundwater changes at a mangrove forest site along Shark River, Everglades National Park, Florida. We combined the use of an original design, surface elevation table with new rod-surface elevation tables to separately track changes in the mid...
Phylogeography of the American woodcock (Scolopax minor): Are management units based on band recovery data reflected in genetically based management units?
J.M. Rhymer, D.G. McAuley, H.L. Ziel
2005, The Auk (122) 1149-1160
Information on population connectivity throughout the annual cycle has become more crucial, because populations of many migratory birds are in decline. One such species is the American Woodcock (Scolopax minor), which inhabits early-successional forests in eastern North America. Although band recoveries have proved useful for dividing populations of this game...
Exposure to polybrominated diphenyl ethers (PBDEs): Changes in thyroid, vitamin A, glutathione homeostasis, and oxidative stress in American kestrels (Falco sparverius)
Kim J. Fernie, J. L. Shutt, G. Mayne, D. Hoffman, Robert J. Letcher, Ken G. Drouillard, I. J. Ritchie
2005, Toxicological Sciences (88) 375-383
Polybrominated diphenyl ethers (PBDEs), a class of additive flame retardants, are temporally increasing in wildlife tissues and capable of disrupting normal endocrine function. We determined whether in ovo and post-hatch exposure of captive American kestrels (Falco sparverius) to environmentally relevant PBDEs alter thyroid, retinol, and oxidative stress measures. Control eggs were injected...
Subchronic effects of methylmercury on plasma and organ biochemistries in great egret nestlings
D. J. Hoffman, M. G. Spalding, P. C. Frederick
2005, Environmental Toxicology and Chemistry (24) 3078-3084
In recent years, high concentrations of mercury have been found in wading birds in Florida, USA. Great egret (Ardea alba) chicks (2 weeks old) were dosed orally daily with the equivalent of 0, 0.5, or 5 μg/g Hg as methylmercury chloride in the diet for up to 12 weeks. Weakness...
Investigating hydrologic alteration as a mechanism of fish assemblage shifts in urbanizing streams
A.H. Roy, Mary C. Freeman, B. J. Freeman, S.J. Wenger, W.E. Ensign, J.L. Meyer
2005, Journal of the North American Benthological Society (24) 656-678
Stream biota in urban and suburban settings are thought to be impaired by altered hydrology; however, it is unknown what aspects of the hydrograph alter fish assemblage structure and which fishes are most vulnerable to hydrologic alterations in small streams. We quantified hydrologic variables and fish assemblages in 30 small...