Breeding productivity of Smith Island black ducks
G.M. Haramis, Dennis G. Jorde, Glenn H. Olsen, Daniel B. Stotts, M.K. Harrison
Matthew C. Perry, editor(s)
2002, Book chapter, Black ducks and their Chesapeake Bay habitats : proceedings of a symposium
We investigated the breeding performance of American black ducks (Anas rubripes) on Smith Island, Chesapeake Bay, to improve our understanding of island black duck breeding ecology and to make management recommendations to enhance productivity. During 1995-96, we implanted 56 female black ducks with 20-g radio transmitters and tracked 35...
American black duck summer range versus winter range: a dichotomy of riches
J. R. Longcore
Matthew C. Perry, editor(s)
2002, Book chapter, Black Ducks and Their Chesapeake Bay Habitats: Proceedings of a Symposium
The status of the American black duck (Anas rubripes) population has more often been attributed to a single event than to multiple events over time and throughout space. The difference in the quality of the habitat, however defined, within breeding areas in the North and in the southerly wintering...
Monitoring tiger populations: Why use capture-recapture sampling?
K. U. Karanth, J.D. Nichols
K.Ullas Karanth, James D. Nichols, editor(s)
2002, Book chapter, Monitoring tigers and their prey: A manual for wildlife researchers, managers and conservationists in tropical Asia
Contents: -- The natural advantage -- References...
Evaluation of genetic variability in a small, insular population of spruce grouse
A.F. O'Connell Jr., Judith Rhymer, D.M. Keppie, K.L. Svenson, B.J. Paigan
2002, Book chapter, 9th International Grouse Symposium, 19-23 August, 2002, Beijing: Abstracts
Using microsatellite markers we determined genetic variability for two populations of spruce grouse in eastern North America, one on a coastal Maine island where breeding habitat is limited and highly fragmented, the other in central New Brunswick (NB), where suitable breeding habitat is generally contiguous across the region. We...
Discussion comments on: 'Occam's shadow: levels of analysis in evolutionary ecology - where to next? by Cooch, Cam and Link
J.D. Nichols
2002, Book chapter, Statistical analysis of data from marked bird populations
Test for age-specificity in survival of the common tern
I.C.T. Nisbet, E. Cam
2002, Book chapter, Statistical analysis of data from marked bird populations
Much effort in life-history theory has been addressed to the dependence of life-history traits on age, especially the phenomenon of senescence and its evolution. Although senescent declines in survival are well documented in humans and in domestic and laboratory animals, evidence for their occurrence and importance in wild animal...
Series forward
J.M. Weeks, S. O’Hare, Barnett A. Rattner
Geoffrey I. Sunahara, Agnes Y. Renoux, Claude Thellen, Connie L. Gaudet, Adrien Pilon, editor(s)
2002, Book chapter, Environmental Analysis of Contaminated Sites
Contrasting determinants of abundance in ancestral and colonized ranges of an invasive brood parasite
D.C. Hahn, R.J. O’Connor
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
Avian species distributions are typically regarded as constrained by spatially extensive variables such as climate, habitat, spatial patchiness, and microhabitat attributes. We hypothesized that the distribution of a brood parasite depends as strongly on host distribution patterns as on biophysical factors and examined this hypothesis with respect to the...
Monitoring tigers and prey: conservation needs and managerial constraints
K. U. Karanth, J.D. Nichols, P.K. Sen, V. Rishi
K.Ullas Karanth, James D. Nichols, editor(s)
2002, Book chapter, Monitoring tigers and their prey: A manual for wildlife researchers, managers and conservationists in tropical Asia
Contents: -- Introduction -- The sampling-based approach to monitoring -- Defining objectives -- Assessing available resources -- Decision making: Matching objectives and resources -- References...
Influence of behavioural tactics on recruitment and reproductive trajectory in the kittiwake
E. Cam, B. Cadiou, J.E. Hines
2002, Book chapter, Statistical analysis of data from marked bird populations
Many studies have provided evidence that, in birds, inexperienced breeders have a lower probability of breeding successfully. This is often explained by lack of skills and knowledge, and sometimes late laying dates in the first breeding attempt. There is growing evidence that in many species with deferred reproduction,...
Random effects and shrinkage estimation in capture-recapture models
J. Andrew Royle, W.A. Link
2002, Book chapter, Statistical analysis of data from marked bird populations
We discuss the analysis of random effects in capture-recapture models, and outline Bayesian and frequentists approaches to their analysis. Under a normal model, random effects estimators derived from Bayesian or frequentist considerations have a common form as shrinkage estimators. We discuss some of the difficulties of analysing random...
The use of resighting data to estimate the rate of population growth of the snail kite in Florida
V.J. Dreitz, J.D. Nichols, J.E. Hines, R.E. Bennetts, W.M. Kitchens, D.L. DeAngelis
2002, Journal of Applied Statistics (29) 609-623
The rate of population growth (lambda) is an important demographic parameter used to assess the viability of a population and to develop management and conservation agendas. We examined the use of resighting data to estimate lambda for the snail kite population in Florida from 1997-2000. The analyses consisted of (1)...
Investigations of potential bias in the estimation of lambda using Pradel's (1996) model for capture-recapture data
J.E. Hines, J.D. Nichols
2002, Book chapter, Statistical analysis of data from marked bird populations
Pradel's (1996) temporal symmetry model permitting direct estimation and modelling of population growth rate, lambda sub i provides a potentially useful tool for the study of population dynamics using marked animals. Because of its recent publication date, the approach has not seen much use, and there have been virtually...
Model-based estimation of individual fitness
W.A. Link, E.G. Cooch, E. Cam
2002, Book chapter, Statistical analysis of data from marked bird populations
Fitness is the currency of natural selection, a measure of the propagation rate of genotypes into future generations. Its various definitions have the common feature that they are functions of survival and fertility rates. At the individual level, the operative level for natural selection, these rates must be...
Modelling postfledging survival and age-specific breeding probabilities in species with delayed maturity: A case study of Roseate Terns at Falkner Island, Connecticut
Jeffrey A. Spendelow, James D. Nichols, J.E. Hines, Jean-Dominique Lebreton, Roger Pradel
2002, Journal of Applied Statistics (29) 385-405
We modeled postfledging survival and age-specific breeding probabilities in endangered Roseate Terns (Sterna dougallii) at Falkner Island, Connecticut, USA using capture-recapture data from 1988-1998 of birds ringed as chicks and as adults. While no individuals bred as 2-yr-olds during this period, about three-quarters of the young that survived and...
Occam's shadow: levels of analysis in evolutionary ecology - where to next?
E.G. Cooch, E. Cam, W.A. Link
2002, Journal of Applied Statistics (29) 19-48
Evolutionary ecology is the study of evolutionary processes, and the ecological conditions that influence them. A fundamental paradigm underlying the study of evolution is natural selection. Although there are a variety of operational definitions for natural selection in the literature, perhaps the most general one is that which...
Monitoring tigers and their prey: A manual for wildlife researchers, managers and conservationists in tropical Asia
K. U. Karanth, J.D. Nichols, editor(s)
2002, Book
Analysis and Management of Animal Populations: Modeling, Estimation and Decision Making
B. Kenneth Williams, J.D. Nichols, M.J. Conroy
2002, Book
This book deals with the processes involved in making informed decisions about the management of animal populations. It covers the modeling of population responses to management actions, the estimation of quantities needed in the modeling effort, and the application of these estimates and models to the development of sound...
Waterbird conservation for the Americas: The North American waterbird conservation plan, version 1
James A. Kushlan, Melanie J. Steinkamp, Katharine C. Parsons, Jack Capp, Martin Acosta Cruz, Malcolm Coulter, Ian Davidson, Loney Dickson, Naomi Edelson, Richard Elliot, R. Michael Erwin, Scott A. Hatch, Stephen Kress, Robert Milko, Steve Miller, Kyra L. Mills, Richard Paul, Roberto Phillips, Jorge E. Saliva, Bill Syderman, John Trapp, Jennifer Wheeler, Kenton D. Wohl
2002, Book
The North American Waterbird Conservation Plan (the Plan) is the product of an independent partnership of individuals and institutions having interest and responsibility for conservation of waterbirds and their habitats in the Americas. This partnership - Waterbird Conservation for the Americas - was created to support a vision in which...
Exposure of free-flying birds to anticholinesterase insecticides in two conventionally managed fruit orchards
S.L. Borges
2002, Book
Conventionally managed orchards receive extensive applications of anticholinesterase (anti-ChE) insecticides throughout the growing season. Because many avian species make use of these environments for nesting and foraging, they may receive substantial exposure to anti-ChEs. The model used to assess avian risk in these environments is highly simplified, and...
Assessing mark-recapture data with computer intensive statistics
Darryl MacKenzie
2002, Book
Effects of herring gulls and great black-backed gulls on breeding piping plovers, South Monomoy Island, Massachusetts. Final Report
S. E. Keane, J.D. Fraser, P. A. Buckley
2002, Book
The large population of breeding herring gulls and great black-backed gulls on South Monomoy Island, Cape Cod, Massachusetts has been thought to negatively affect the breeding success of the threatened piping plover. Following the Piping Plover Recovery Plan's call for gull colonies to be removed from piping plover breeding sites,...
Breeding population density and habitat use of Swainson's warblers in a Georgia floodplain forest
E.A. Wright
2002, Book
I examined density and habitat use of a Swainson's Warbler (Limnothlypis swainsonii) breeding population in Georgia. This songbird species is inadequately monitored, and may be declining due to anthropogenic alteration of floodplain forest breeding habitats. I used distance sampling methods to estimate density, finding 9.4 singing males/ha (CV...
Final report: Initial ecosystem response of salt marshes to ditch plugging and pool creation: Experiments at Rachel Carson National Wildlife Refuge (Maine)
S.C. Adamowicz, C. T. Roman
2002, Book
This study evaluates the response of three salt marshes, associated with the Rachel Carson National Wildlife Refuge (Maine), to the practice of ditch plugging. Drainage ditches, originally dug to drain the marsh for mosquito control or to facilitate salt hay farming, are plugged with marsh peat in an effort...
Seismic velocity structure of the continental lithosphere from controlled source data
Walter D. Mooney, Claus Prodehl, Nina Pavlenkova
2002, International Geophysics (81) 887-910
The purpose of this chapter is to provide a summary of the seismic velocity structure of the continental lithosphere, i.e., the crust and uppermost mantle. We define the crust as the outer layer of the Earth that is separated from the underlying mantle by the Mohorovičić discontinuity (Moho). We adopted the usual convention of...
