A model to predict breeding-season productivity for multibrooded songbirds
L.A. Powell, M.J. Conroy, D.G. Krementz, J. D. Lang
1999, The Auk (116) 1001-1008
Breeding-season productivity (the per capita number of offspring surviving to the end of the breeding season) is seldom estimated for multibrooded songbirds because of cost and logistical constraints. However, this parameter is critical for predictions of population growth rates and comparisons of seasonal productivity across geographic or temporal scales. We...
Modeling pattern in collections of parameters
W.A. Link
1999, Journal of Wildlife Management (63) 1017-1027
Wildlife management is increasingly guided by analyses of large and complex datasets. The description of such datasets often requires a large number of parameters, among which certain patterns might be discernible. For example, one may consider a long-term study producing estimates of annual survival rates; of interest is...
Predicting chick survival and productivity of Roseate Terns from data on early growth
C.S. Robbins
1999, Waterbirds (22) 116-117
Early growth of Roseate Tern (Sterna dougallii) chicks is a strong predictor of chick survival and hence of productivity. We developed discriminant functions to predict chick survival from body-masses measured during the first 3 days of life. Productivity is estimated by assuming that almost all A-chicks (first-hatched in...
Role of banding in forest conservation strategy in eastern Guatemala
C.S. Robbins, B.A. Dowell, I. Arias, A. Cerezo B.
1999, North American Bird Bander (24) 93-94(abs)
In response to a request from FUNDAECO, a Guatemalan non-government organization, we worked with them to develop a conservation strategy for the Cerro San Gil Protected Area and surrounding private lands. Volunteer banders from a dozen states and Canadian provinces assisted in long-term monitoring of populations of resident and migratory...
Annual survival of Snail Kites in Florida: Radio telemetry versus capture-resighting data
R.E. Bennetts, V.J. Dreitz, W.M. Kitchens, J.E. Hines, J.D. Nichols
1999, The Auk (116) 435-447
We estimated annual survival of Snail Kites (Rostrhamus sociabilis) in Florida using the Kaplan-Meier estimator with data from 271 radio-tagged birds over a three-year period and capture-recapture (resighting) models with data from 1,319 banded birds over a six-year period. We tested the hypothesis that survival differed among three age classes...
Factors influencing counts in an annual survey of Snail Kites in Florida
R.E. Bennetts, W.A. Link, J.R. Sauer, P.W. Sykes Jr.
1999, The Auk (116) 316-323
Snail Kites (Rostrhamus sociabilis) in Florida were monitored between 1969 and 1994 using a quasi-systematic annual survey. We analyzed data from the annual Snail Kite survey using a generalized linear model where counts were regarded as overdispersed Poisson random variables. This approach allowed us to investigate covariates that might have...
Abundance and reproduction of songbirds in burned and unburned pine forests of the Georgia Piedmont
Donald H. White, B.R. Chapman, J.H. Brunjes IV, R.V. Raftovich Jr., J.T. Seginak
1999, Journal of Field Ornithology (70) 414-424
We studied the abundance and productivity of songbirds in prescribed burned and unburned mature (>60 yr) pine forests at Piedmont National Wildlife Refuge, Georgia, during 1993-1995. We estimated species abundance, richness, and evenness using data from 312 point counts in 18 burned sites and six unburned sites. We...
Predicting chick survival and productivity of Roseate Terns from data on early growth
I.C.T. Nisbet, Jeff S. Hatfield, W.A. Link, J. A. Spendelow
1999, Waterbirds (22) 90-97
Early growth of Roseate Tern (Sterna dougallii) chicks is a strong predictor of chick survival and hence of productivity. We developed discriminant functions to predict chick survival from body-masses measured during the first 3 days of life. Productivity is estimated by assuming that almost all A-chicks (first-hatched in...
Cumulative Index to Chemicals and to Common and Scientific Names of Species Listed in Contaminant Hazard Reviews 1 through 34
R. Eisler
1999, Contaminant Hazard Reviews Report 35. USGS/BRD/BSR--1999-0002.
The Patuxent Wildlife Research Center Contaminant Hazard Reviews (CHR) series synthesizes ecotoxicological data of selected environmental contaminants, with emphasis on hazards to native species of flora and fauna. From 1985 through 1998 a total of 34 reviews were published in various Reports series of the U.S. Department of the Interior...
Vocalization behavior and response of black rails
M.L. Legare, W.R. Eddleman, P. A. Buckley, C. Kelly
1999, Book chapter, Proceedings of the marsh bird monitoring workshop
We measured the vocal responses and movements of radio-tagged black rails (Laterallus jamaicensis) (n = 43, 26 males, 17 females) to playback of vocalizations at 2 sites in Florida during the breeding seasons of 1992-95. We used regression coefficients from logistic regression equations to model the probability of a...
Marsh birds and the North American Breeding Bird Survey: judging the value of a landscape level survey for habitat specialist species with low detection rates
J.R. Sauer
1999, Book chapter, Proceedings of the marsh bird monitoring workshop
The North American Breeding Bird Survey was started in 1966, and provides information on population change for >400 species of birds. it covers the continental United States, Canada, and Alaska, and is conducted once each year, in June, by volunteer observers. A 39.4 kIn roadside survey route is driven starting...
Historical land cover changes in the Great Lakes Region
K.L. Cole, M.B. Davis, F. Stearns, G. Guntenspergen, K. Walker
Thomas D. Sisk, editor(s)
1999, Report, Perspectives on the land use history of North America: A context for understanding our changing environment
Two different methods of reconstructing historical vegetation change, drawing on General Land Office (GLO) surveys and fossil pollen deposits, are demonstrated by using data from the Great Lakes region. Both types of data are incorporated into landscape-scale analyses and presented through geographic information systems. Results from the two methods reinforce...
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)
1999, Book chapter, Proceedings 22nd International Ornithological Congress, 16-22 August 1998, Durban.
Estimates of annual survival rates of neotropical birds have proven controversial. Traditionally, tropical birds were thought to have high survival rates for their size, but analyses of a multispecies assemblage from Panama by Karr et al. (1990) provided a counterexample to that view. One criticism of that study has...
Population status of North American grassland birds from the North American Breeding Bird Survey
B. Peterjohn, J.R. Sauer
Peter D. Vickery, James R. Herkert, editor(s)
1999, Book chapter, Ecology and conservation of grassland birds of the western hemisphere
We summarize population trends for grassland birds from 1966 to 1996 using data from the North American Breeding Bird Survey. Collectively, grassland birds showed the smallest percentage of species that increased of any Breeding Bird Survey bird group, and population declines prevailed throughout most of North America. Although...
On the importance of controlling for effort in analysis of count survey data: Modeling population change from Christmas Bird Count data
W.A. Link, J.R. Sauer
Andreas J. Helbig, Martin Flade, editor(s)
1999, Book chapter, Bird numbers 1998: where monitoring and ecological research meet: proceedings of the 14th International Conference of the European Bird Census Council (EBCC) in Cottbus (Brandenburg), Germany, 23-31 March 1998.
Count survey data are commonly used for estimating temporal and spatial patterns of population change. Since count surveys are not censuses, counts can be influenced by 'nuisance factors' related to the probability of detecting animals but unrelated to the actual population size. The effects of systematic changes in...
Regional analysis of population trajectories from the North American Breeding Bird Survey
J.R. Sauer, W.A. Link
Andreas J. Helbig, Martin Flade, editor(s)
1999, Book chapter, Bird numbers 1998: where monitoring and ecological research meet: proceedings of the 14th International Conference of the European Bird Census Council (EBCC) in Cottbus (Brandenburg), Germany, 23-31 March 1998.
The North American Breeding Bird Survey (BBS) was started in 1966, and provides information on population change and distribution for most of the birds in North America. The geographic extent of the survey, and the logistical compromises needed to survey such a large area, present many challenges for estimation...
Studying wind energy/bird interactions: a guidance document. Metrics and methods for determining or monitoring potential impacts on birds at existing and proposed wind energy sites
R. Anderson, M. Morrison, K. Sinclair, D. Strickland, H. Davis, W. Kendall
1999, Book
In the 1980s little was known about the potential environmental effects associated with large scale wind energy development. Although wind turbines have been used in farming and remote location applications throughout this country for centuries, impacts on birds resulting from these dispersed turbines had not been reported. Thus...
Assessing biological effects from highway-runoff constituents
Denny R. Buckler, Gregory E. Granato
1999, Open-File Report 99-240
Increased emphasis on evaluation of nonpoint-source pollution has intensified the need for techniques that can be used to discern the toxicological effects of complex chemical mixtures. In response, the use of biological assessment techniques is receiving increased regulatory emphasis. When applied with documented habitat assessment and chemical analysis, these techniques...
Maps Showing Locations of Damaging Landslides Caused by El Nino Rainstorms, Winter Season 1997-98, San Francisco Bay Region, California
Jonathan W. Godt
1999, Miscellaneous Field Studies Map 2325
Heavy rainfall associated with a strong El Nino caused over $150 million in landslide damage in the 10-county San Francisco Bay region during the winter and spring of 1998. Reports of landsliding began in early January 1998 and continued throughout the winter and spring. On February 9, President Clinton declared...
High-resolution seismic reflection/refraction imaging from Interstate 10 to Cherry Valley Boulevard, Cherry Valley, Riverside County, California: Implications for water resources and earthquake hazards
G. Gandhok, R. D. Catchings, M. R. Goldman, E. Horta, M. J. Rymer, P. Martin, A. Christensen
1999, Open-File Report 99-320
This report is the second of two reports on seismic imaging investigations conducted by the U.S. Geological Survey (USGS) during the summers of 1997 and 1998 in the Cherry Valley area in California (Figure 1a). In the first report (Catchings et al., 1999), data and interpretations were presented for four...
Summary of water-quality data for City of Albuquerque drinking-water supply wells, 1988-97
Laura M. Bexfield, William E. Lindberg, Scott K. Anderholm
1999, Open-File Report 99-195
The City of Albuquerque has collected and analyzed more than 5,000 water-quality samples from 113 water-supply wells in the Albuquerque area, including many drinking-water supply wells, since May of 1988. As a result, a large water-quality data base has been compiled that includes data for major ions, nutrients, trace elements,...
Sources and transport of phosphorus and nitrogen during low-flow conditions in the Tualatin River, Oregon, 1991-93
Valerie J. Kelly, Dennis D. Lynch, Stewart A. Rounds
1999, Open-File Report 99-232
In the 1980s significant nutrient-related water-quality problems that impacted beneficial uses were identified in the Tualatin River during the low-flow summer months, defined as .May 1 to October 31. Unsightly algal blooms resulted in fluctuations in oxygen concentrations and pH conditions; reduction of phosphorus concentrations was determined to the effective...
Assessing trail conditions in protected areas: Application of a problem-assessment method in Great Smoky Mountains National Park, USA
Yu-Fai Leung, Jeffrey L. Marion
1999, Environmental Conservation (26) 270-279
The degradation of trail resources associated with expanding recreation and tourism visitation is a growing management problem in protected areas worldwide. In order to make judicious trail and visitor management decisions, protected area managers need objective and timely information on trail resource conditions. This paper introduces a trail survey method...
Depth-Duration Frequency of Precipitation for Oklahoma
Robert L. Tortorelli, Alan Rea, William H. Asquith
1999, Water-Resources Investigations Report 99-4232
A regional frequency analysis was conducted to estimate the depth-duration frequency of precipitation for 12 durations in Oklahoma (15, 30, and 60 minutes; 1, 2, 3, 6, 12, and 24 hours; and 1, 3, and 7 days). Seven selected frequencies, expressed as recurrence intervals, were investigated (2, 5, 10, 25,...
Stream water quality in coal mined areas of the lower Cheat River Basin, West Virginia and Pennsylvania, during low-flow conditions, July 1997
Donald R. Williams, Mary E. Clark, Juliane B. Brown
1999, Water-Resources Investigations Report 98-4258
IntroductionThe Cheat River Basin is in the Allegheny Plateau and Allegheny Mountain Sections of the Appalachian Plateau Physiographic Province (Fenneman, 1946) and is almost entirely within the state of West Virginia. The Cheat River drains an area of 1,422 square miles in Randolph, Tucker, Preston, and Monongalia Counties in West Virginia...
