The North American Amphibian Monitoring Program. [abstract]
J. Griffin
1998, Book chapter, Midwest Declining Amphibians Conference, a joint meeting of the Great Lakes and Central Division Working Groups of the Declining Amphibian Populations Task Force, March 20 & 21, 1998
The North American Amphibian Monitoring Program has been under development for the past three years. The monitoring strategy for NAAMP has five main prongs: terrestrial salamander surveys, calling surveys, aquatic surveys, western surveys, and atlassing. Of these five, calling surveys were selected as one of the first implementation priorities due...
Effects of pesticides on Canada Geese
L. J. Blus
Donald H. Rusch, Michael D. Samuel, Dale D. Humburg, Brian D. Sullivan, editor(s)
1998, Book chapter, Biology and management of Canada geese: proceedings of the International Canada Goose Symposium
This paper summarizes published and unpublished sources relating to exposure of Canada geese (Branta canadensis) to pesticides, emphasizing documented episodes of poisoning by organochlorine (OC), organophosphorus (OP), and carbamate compounds. Canada geese accumulate the lipid-soluble OC compounds, although they have a lower potential for biomagnification of these pesticides than...
The effects of forest management on habitat and survival rates of American Woodcock wintering in Georgia
D.G. Krementz
1998, Book chapter, Webless migratory game bird research program: Project abstracts - 1997
American woodcock
D. McAuley, D. Clugston
M. J. Mac, P.A. Opler, C.E. Puckett Haecker, P.D. Doran, editor(s)
1998, Book chapter, Status and trends of the nation's biological resources. Volume 1.
Effects of hunting on survival and habitat use by American Woodcock on breeding and migration areas
D.G. McAuley, J. R. Longcore, R.B. Allen, G.F. Sepik
1998, Book chapter, Webless Migratory Game Bird Research Program: Project Abstracts - 1997
Ecology and behaviour of the Alder Flycatcher Empidonax alnorum, Tyrannidae in winter
M. Foster
N.J. Adams, R.H. Slotow, editor(s)
1998, Book chapter, Proceedings 22nd International Ornithological Congress, Durban 16-22 August 1998, Abstracts of oral presentations and posters
The Alder Flycatcher Empidonax alnorum (Tyrannidae) winters from Colombia and Venezuela, south to northern Argentina. We studied the species in Manu National Park, Madre de Dios, Peru. In this area the species occupies riparian zones along lowland meander rivers as well as adjacent transition zone forest in the...
Length of stay, survival, habitat use and migration characteristics of fall migrant Soras on the Patuxent River marsh as determined by radio telemetry
G. Michael Haramis, Gregory D. Kearns
1998, Book chapter, Webless migratory game bird research program: Project abstracts - 1997
No abstract available....
Unbiasedness
W.A. Link
Peter Armitage, Theodore Colton, editor(s)
1998, Book chapter, Encyclopedia of Biostatistics, v. 6
Unbiasedness is probably the best known criterion for evaluating the performance of estimators. This note describes unbiasedness, demonstrating various failings of the criterion. It is shown that unbiased estimators might not exist, or might not be unique; an example of a unique but clearly unacceptable unbiased estimator is...
Radiotelemetry to determine exposure and effects of organophosphorus insecticides on sage grouse
L. J. Blus, J.W. Connelly
Larry Brewer, Kathleen Fagerstone, editor(s)
1998, Book chapter, Radiotelemetry applications for wildlife toxicology field studies: Proceeding of the Pellston workshop on avian radiotelemetry in support of pesticide field studies, January 5-8, 1993
Birds and landscape changes in Northeastern forests
Sam Droege
M. J. Mac, P.A. Opler, C.E. Puckett Haecker, P.D. Doran, editor(s)
1998, Book chapter, Status and trends of the nation's biological resources. Volume 1.
Present and future of scientific bird ringing
F. Spina, J. Tautin
N.J. Adams, R.H. Slotow, editor(s)
1998, Book chapter, Proceedings 22nd International Ornithological Congress, Durban 16-22 August 1998, Abstracts of plenaries, symposia and Round Table Discussions
In 1999 scientific bird ringing will celebrate its first century of existence. Started mainly to investigate bird movements, bird ringing has become a much more flexible method to study different aspects of bird biology. Bird ringing can only be properly organised if an effective international co-operation exists....
Effects of contaminants on Double-crested Cormorant reproduction in Green Bay, Wisconsin, USA
T. W. Custer, Christine M. Custer, K. L. Stromborg, M. J. Melancon
N.J. Adams, R.H. Slotow, editor(s)
1998, Book chapter, Proceedings of the 22nd International Ornithological Congress, Durban 16-22 August 1998, Abstracts of oral presentations and posters
In 1994 and 1995, Double-crested Cormorants Phalacrocorax auritus were monitored from egg-laying through 12 days of age at Cat Island, Green Bay, Wisconsin, USA. Sample eggs at hatching were analysed for organochlorines (including total PCBs, PCB congeners, and DDE), hepatic microsomal ethoxyresorufin-O-dealkylase (EROD) activity in livers of embryos, and...
Demography of forest birds in Panama: How do transients affect estimates of survival rates?
J. D. Brawn, J.R. Karr, J.D. Nichols, W.D. Robinson
N.J. Adams, R.H. Slotow, editor(s)
1998, Book chapter, Proceedings 22nd International Ornithological Congress, Durban 16-22 August 1998, Abstracts of plenaries, symposia and Round Table Discussions
Estimates of annual survival rates for a multispecies sample of neotropical birds from Panama have proven controversial. Traditionally, tropical birds were thought to have high survival rates for their size, but analyses by Kart et al. (1990. Am. Nat. 136:277-91) contradicted that view, suggesting tropical birds may not have systematically...
Organochlorine contaminants and Tree Swallows along the Fox River and Green Bay, Wisconsin, USA
Christine M. Custer, T. W. Custer, P. David Allen, K. L. Stromborg, M. J. Melancon
N.J. Adams, R.H. Slotow, editor(s)
1998, Book chapter, Proceedings of the 22nd International Ornithological Congress, Durban 16-22 August 1998, Abstracts of oral presentations and posters
Green Bay, Wisconsin is contaminated with polychlorinated biphenyls (PCBs) however, whether these contaminants affect reproduction in insectivorous birds is unknown. Tree Swallows, Tachycineta bicolor, are secondary cavity nesters that will nest in boxes and tolerate handling. Because Tree Swallows are aquatic insectivores, residues in their tissues are primarily...
Campsite survey implications for managing designated campsites at Great Smoky Mountains National Park
J. L. Marion, Y.-F. Leung
D.L. Kulhavy, M.H. Legg, editor(s)
1998, Book chapter, Wilderness and natural areas in Eastern North America :research, management and planning
Backcountry campsites and shelters in Great Smoky Mountains National Park were surveyed in 1993 as part of a new impact monitoring program. A total of 395 campsites and shelters were located and assessed, including 309 legal campsites located at 84 designated campgrounds, 68 illegal campsites, and 18 shelters....
Managing ecotourism visitation in protected areas
J. L. Marion, T. A. Farrell
Kreg Lindberg, Megan Epler Wood, David Engeldrum, editor(s)
1998, Book chapter, Ecotourism: A guide for planners and managers, Volume 2
Ecotourism management seeks to integrate and balance several potentially conflicting objectives: protection of natural and cultural resources, provision of recreation opportunities and generation of economic benefits. In the absence of effective planning and management, ecotourism can lead to significant negative impacts on vegetation, soil, water, wildlife, historic resources, cultures,...
Avian conservation research in the Mariana Islands, Western Pacific Ocean
G.H. Rodda, E.W. Campbell III, S.R. Derrickson
John M. Marzluff, Rex Sallabanks, editor(s)
1998, Book chapter, Avian Conservation: Research and Management
Recreation ecology research findings: Implications for wilderness and park managers
J. L. Marion
Hannah Kirchner, editor(s)
1998, Book chapter, National Outdoor Ethic Conference Proceedings, April 18-21, 1996, St. Louis, Missouri, New directions for responsible outdoor recreation
Recreationists unintentionally trample vegetation, erode soil, and disturb wildlife. Such human-related impacts present a dilemma for managers charged with the dual objectives of providing recreational opportunities and preserving natural environments. This paper presents some of the principal findings and management implications from research on visitor impacts to protected...
International impact research and management
J. L. Marion, Y. Leung
William E. Hammitt, David N. Cole, editor(s)
1998, Book chapter, Wildland Recreation: Ecology and Management
To be sustainable, ecotourism requires the protection of natural environments and processes both from development and operation of the tourism infrastructure, and from the activities of ecotourists within protected areas. This book chapter reviews the international literature on the study of visitor or recreation-related resource impacts with special reference...
Foreword
C.S. Robbins
Hugh E. Kingery, editor(s)
1998, Book chapter, Colorado Breeding Birds Atlas
Trends in Appalachian bird populations, some speculative notes on the causes, and some thoughts on conservation directions for the region
Sam Droege
1998, Book chapter, Proceedings from the 1996 Central Appalachian Ecological Integrity Conference, Massanetta Springs, Virginia, January 26-28.
Monitoring long-term trends in Wisconsin frog and toad populations
M.J. Mossman, L.M. Hartman, R. Hay, J.R. Sauer, B.J. Dhuey
M.J. Lannoo, editor(s)
1998, Book chapter, Status and Conservation of Midwestern Amphibians
The Wisconsin Frog and Toad Survey: Update and 1984-97 trends [abstract]
M.J. Mossman, L. Hartman, J. Sauer, R. Hay, B. Dhuey
1998, Book chapter, Midwest Declining Amphibians Conference: A Joint Meeting of the Great Lakes and Central Division Working Groups of the Declining Amphibian Populations Task Force, March 20 and 21, 1998
The Wisconsin Frog and Toad Survey (WFTS) is a volunteer-based, roadside auditory count that began in 1981. It's protocols were recently modified for continent-wide use by the North American Amphibian Monitoring Plan (NAAMP). In 1997 we initiated a study to compare data collected by the WFTS and NAAMP protocols, in...
Effects of landscape composition and wetland fragmentation on frog and toad abundance and species richness in Iowa and Wisconsin, USA [abstract]
M. G. Knutson, J.R. Sauer, D.A. Olsen, M.J. Mossman, L.M. Hemesath, M.J. Lannoo
1998, Book chapter, Midwest Declining Amphibians Conference, a joint meeting of the Great Lakes and Central Division Working Groups of the Declining Amphibian Populations Task Force, March 20 & 21, 1998
We examined the relationships between anuran diversity and landscape features in the Upper Midwestern United States. Anuran relative abundance and species richness were measured using data collected by Wisconsin and Iowa state calling surveys conducted from 1990-1995. Landscape features surrounding survey points were determined using National Wetland Inventory...
American Black Duck
Jerry R. Longcore, David A. Clugston
Michael J. Mac, Paul A. Opler, Catherine E. Puckett Haecker, Peter D. Doran, editor(s)
1998, Book chapter, Status and trends of the nation's biological resources
The American black duck, with its brownish-black plumage and iridescent violet speculum, is one of the wariest of all the large dabbling ducks (Kortright 1942; Fig. 1). The black duck’s distribution is confined to eastern North America but extends into Manitoba. The black duck breeds in a variety of habitat...
