James Nichols, Ph.D.
Dr. Jim Nichols conducts research on animal population dynamics and management
Recent Accomplishments
Education
- B.S. Wake Forest University, Biology, 1971
- M.S. Louisiana State University, Wildlife Management, 1973
- Ph.D. Michigan State University, Wildlife Ecology, 1976
Professional Studies/Experience
- Adaptive management and assessment of habitat changes on migratory birds
- Development of models of mallard population dynamics for adaptive harvest management
- Development of methods to estimate parameters associated with animal population dynamics
- Statistical methods for species richness estimation
- Technical Assistance -Tiger Monitoring and Population Research
- Development of methods for estimating patch occupancy and patch-dynamic parameters from detection-nondetection survey data
- Development of methods to estimate species richness and community-dynamic parameters from species list data
Mentorship/Outreach
Professional societies/affiliations/committees/editorial boardsScientific/Oral Presentations, Abstracts
Honors, awards, recognition, elected offices
- 2005 - U.S. Presidential Rank Award (Meritorious Senior Professional)
- 2004 - U.S. Geological Survey Meritorious Service Award
- 2004 - IFAS Scholar Award, University of Florida
- 1998 - Promoted to Senior Scientist, U.S. Geological Survey
- 1991 - The George W. Snedecor Award of the American Statistical Association
- 1991 - The Wildlife Society's Wildlife Publication Award for Monograph
- 1984 - Southeastern Section of the Wildlife Society, Outstanding Publication Award
Scientific/Oral Presentations, Abstracts
Science and Products
Filter Total Items: 401
Investigations of potential bias in the estimation of lambda using Pradel's (1996) model for capture-recapture data
Pradel's (1996) temporal symmetry model permitting direct estimation and modelling of population growth rate, u 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 no investigations directed at robustness of the resulting estimators. Here we consid
Authors
James E. Hines, James D. Nichols
Approaches for the direct estimation of lambda, and demographic contributions to lambda, using capture-recapture data
We first consider the estimation of the finite rate of population increase or population growth rate, u i , using capture-recapture data from open populations. We review estimation and modelling of u i under three main approaches to modelling openpopulation data: the classic approach of Jolly (1965) and Seber (1965), the superpopulation approach of Crosbie & Manly (1985) and Schwarz & Arnason (199
Authors
James D. Nichols, James E. Hines
Monitoring tiger populations: Why use capture-recapture sampling?
Contents: -- The natural advantage -- References
Authors
K. U. Karanth, J. D. Nichols
Field surveys: Estimating absolute densities of tigers using capture-recapture sampling
Contents: -- Introduction -- Choice of camera trap equipment -- Conducting camera trap surveys -- Analysis of capture-recapture data -- References
Authors
K. U. Karanth, S. Kumar, J. D. Nichols
Statistical concepts: Estimating absolute densities of tigers using capture-recapture sampling
Contents: -- Introduction -- Photo trapping tigers -- Capture-recapture models -- Survey design considerations -- Conclusion -- References
Authors
J. D. Nichols, K. U. Karanth
Statistical concepts: Indices of relative abundance
Contents: -- Kinds of indices -- Reducing bias in index-based estimates -- Robust estimation of relative abundance -- Summary comments on indices and estimation -- References
Authors
J. D. Nichols, K. U. Karanth
Statistical concepts: Assessing spatial distributions
Contents: -- Presence-absence surveys -- Mapping the spatial distribution -- Looking ahead -- References
Authors
J. D. Nichols, K. U. Karanth
Population monitoring: a conceptual framework
Contents: -- Introduction -- The statistical framework -- References
Authors
J. D. Nichols, K. U. Karanth
Modelling postfledging survival and age- specific breeding probabilities in species with delayed maturity: A case study of Roseate Terns at Falkner Island, Connecticut
We modelled 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-year-olds during this period, about three-quarters of the young that survived and returned as 3-year-olds nested, and virtually
Authors
J. A. Spendelow, J. D. Nichols, J. E. Hines, J.D. Lebreton, R. Pradel
Monitoring tigers and prey: conservation needs and managerial constraints
Contents: -- Introduction -- The sampling-based approach to monitoring -- Defining objectives -- Assessing available resources -- Decision making: Matching objectives and resources -- References
Authors
K. U. Karanth, J. D. Nichols, P.K. Sen, V. Rishi
Introduction
No abstract available.
Authors
J. Clobert, J.O. Wolff, J. D. Nichols, E. Danchin, A.A. Dhondt
Dispersal
The ability of species to migrate and disperse is a trait that has interested ecologists for many years. Now that so many species and ecosystems face major environmental threats from habitat fragmentation and global climate change, the ability of species to adapt to these changes by dispersing, migrating, or moving between patches of habitat can be crucial to ensuring their survival. This book p
Science and Products
Filter Total Items: 401
Investigations of potential bias in the estimation of lambda using Pradel's (1996) model for capture-recapture data
Pradel's (1996) temporal symmetry model permitting direct estimation and modelling of population growth rate, u 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 no investigations directed at robustness of the resulting estimators. Here we consid
Authors
James E. Hines, James D. Nichols
Approaches for the direct estimation of lambda, and demographic contributions to lambda, using capture-recapture data
We first consider the estimation of the finite rate of population increase or population growth rate, u i , using capture-recapture data from open populations. We review estimation and modelling of u i under three main approaches to modelling openpopulation data: the classic approach of Jolly (1965) and Seber (1965), the superpopulation approach of Crosbie & Manly (1985) and Schwarz & Arnason (199
Authors
James D. Nichols, James E. Hines
Monitoring tiger populations: Why use capture-recapture sampling?
Contents: -- The natural advantage -- References
Authors
K. U. Karanth, J. D. Nichols
Field surveys: Estimating absolute densities of tigers using capture-recapture sampling
Contents: -- Introduction -- Choice of camera trap equipment -- Conducting camera trap surveys -- Analysis of capture-recapture data -- References
Authors
K. U. Karanth, S. Kumar, J. D. Nichols
Statistical concepts: Estimating absolute densities of tigers using capture-recapture sampling
Contents: -- Introduction -- Photo trapping tigers -- Capture-recapture models -- Survey design considerations -- Conclusion -- References
Authors
J. D. Nichols, K. U. Karanth
Statistical concepts: Indices of relative abundance
Contents: -- Kinds of indices -- Reducing bias in index-based estimates -- Robust estimation of relative abundance -- Summary comments on indices and estimation -- References
Authors
J. D. Nichols, K. U. Karanth
Statistical concepts: Assessing spatial distributions
Contents: -- Presence-absence surveys -- Mapping the spatial distribution -- Looking ahead -- References
Authors
J. D. Nichols, K. U. Karanth
Population monitoring: a conceptual framework
Contents: -- Introduction -- The statistical framework -- References
Authors
J. D. Nichols, K. U. Karanth
Modelling postfledging survival and age- specific breeding probabilities in species with delayed maturity: A case study of Roseate Terns at Falkner Island, Connecticut
We modelled 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-year-olds during this period, about three-quarters of the young that survived and returned as 3-year-olds nested, and virtually
Authors
J. A. Spendelow, J. D. Nichols, J. E. Hines, J.D. Lebreton, R. Pradel
Monitoring tigers and prey: conservation needs and managerial constraints
Contents: -- Introduction -- The sampling-based approach to monitoring -- Defining objectives -- Assessing available resources -- Decision making: Matching objectives and resources -- References
Authors
K. U. Karanth, J. D. Nichols, P.K. Sen, V. Rishi
Introduction
No abstract available.
Authors
J. Clobert, J.O. Wolff, J. D. Nichols, E. Danchin, A.A. Dhondt
Dispersal
The ability of species to migrate and disperse is a trait that has interested ecologists for many years. Now that so many species and ecosystems face major environmental threats from habitat fragmentation and global climate change, the ability of species to adapt to these changes by dispersing, migrating, or moving between patches of habitat can be crucial to ensuring their survival. This book p