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
Development of Methods Associated with Animal Population Dynamics
The Challenge: Conservation and management of natural animal populations requires knowledge of their dynamics and associated environmental and management influences. Specifically, informed management requires periodic estimates of system state (e.g., population size) and models for projecting consequences of management actions for subsequent state dynamics. However, it is very difficult to draw...
Development of Patch Occupancy Models for Assessing the Spatial Distribution of Organisms
The Challenge: A variety of important questions about the conservation and management of natural resources requires information about the spatial distribution of organisms. For species of conservation concern, the size of a species’ range is a criterion used to assign species status as threatened or endangered. For invasive species and disease organisms, the dynamics of the species range expansion...
Statistical Research for the USGS - Amphibian Research and Monitoring Initiative
The Challenge: Since its inception in 2002 the USGS Amphibian Research and Monitoring Initiative (ARMI) has taken the lead in monitoring amphibian populations on Department of Interior lands. ARMI scientists work on a broad spectrum of species and management issues to address the core causes of amphibian declines. In many cases, research requires complex study designs and innovative methods. A key...
Evaluation of Potential Offshore Wind Projects in the Northeastern U.S. on Endangered Roseate Terns: Who is at Risk and When?
The Challenge: Terns in coastal areas of the Northeastern US likely will be impacted by construction and operation of offshore wind turbines. The “Cape Cod & Islands” (CCMA) area of Massachusetts is a particularly important area for the endangered Northwest Atlantic Roseate Tern (ROST) population as most ROSTs from throughout the breeding range (Nova Scotia to Long Island, New York) congregate...
Avian Indicators of Climate Change Based on the North American Breeding Bird Survey
Appropriate ecological indicators of climate change can be used to measure concurrent changes in ecological systems, inform management decisions, and potentially to project the consequences of climate change. However, many of the available indicators for North American birds do not account for imperfect observation. We proposed to use correlated-detection occupancy models to develop...
SERAP: Assessment of Climate and Land Use Change Impacts on Terrestrial Species
Researchers from North Carolina State University and the USGS integrated models of urbanization and vegetation dynamics with the regional climate models to predict vegetation dynamics and assess how landscape change could impact priority species, including North American land birds. This integrated ensemble of models can be used to predict locations where responses to climate change are...
Filter Total Items: 418
Stochastic seasonality and nonlinear density-dependent factors regulate population size in an African rodent Stochastic seasonality and nonlinear density-dependent factors regulate population size in an African rodent
Ecology has long been troubled by the controversy over how populations are regulated. Some ecologists focus on the role of environmental effects, whereas others argue that density-dependent feedback mechanisms are central. The relative importance of both processes is still hotly debated, but clear examples of both processes acting in the same population are rare. Keyfactor analysis...
Authors
H. Leirs, N. C. Stenseth, J.D. Nichols, J.E. Hines, R. Verhagen, W. Verheyen
Sources of variation in waterfowl survival rates Sources of variation in waterfowl survival rates
Because of the need to manage hunted populations of waterfowl (Anatidae), biologists have studied many demographic traits of waterfowl by analyzing band recoveries. These analyses have produced the most extensive and best estimates of survival available for any group of birds. Using these data, we examined several factors that might explain variation among annual survival rates to...
Authors
D.G. Krementz, R. J. Barker, J.D. Nichols
Ecology and management of subdivided animal populations Ecology and management of subdivided animal populations
No abstract available.
Authors
J.D. Lebreton, J.D. Nichols
Metodos cuantitativas contemporancos para entender y manejar poblaciones y comunidades animales Metodos cuantitativas contemporancos para entender y manejar poblaciones y comunidades animales
No abstract available.
Authors
M.J. Conroy, J.D. Nichols, E.R. Asanza
Capture-recapture analysis of a wintering black-capped chickadee population in Connecticut, 1958-1993 Capture-recapture analysis of a wintering black-capped chickadee population in Connecticut, 1958-1993
We investigated the dynamics of a wintering population of Black-capped Chickadees (Parus atricapillus) using data from a long-term capture-recapture study. Goodness-of-fit and likelihood-ratio tests indicated that the standard Jolly-Seber model was inadequate for the data, so we explored different parameterizations of a model in which survival probability for new captures differed from...
Authors
G. Loery, James D. Nichols, James E. Hines
The loss rates of web tags applied to day-old Anas and Aythya ducklings The loss rates of web tags applied to day-old Anas and Aythya ducklings
Researchers studied the loss rate of web tags on Anas and Aythya ducklings by double marking day-old ducklings of five species with web tags and plasticine-filled rings. Tag loss was examined over three-month, one-year, and three-year periods. Web tag loss was greatest for Anas and occurred mostly in the first three months following tagging.
Authors
Peter Blums, Aivars Mednis, I. Bauga, J.D. Nichols, J.E. Hines
Techniques for estimating abundance and species richness: Estimation of species richness Techniques for estimating abundance and species richness: Estimation of species richness
No abstract available.
Authors
J.D. Nichols, M.J. Conroy
Keys to a successful project: Associated data and planning: Data standards Keys to a successful project: Associated data and planning: Data standards
No abstract available.
Authors
R.W. McDiarmid, D.E. Wilson
Voucher specimens Voucher specimens
No abstract available.
Authors
R.P. Reynolds, R.J. Crombie, R.W. McDiarmid, Terry L. Yates
Introduction Introduction
No abstract available.
Authors
D.E. Wilson, J.D. Nichols, R. Rudran, C. Southwell
Science and Products
Development of Methods Associated with Animal Population Dynamics
The Challenge: Conservation and management of natural animal populations requires knowledge of their dynamics and associated environmental and management influences. Specifically, informed management requires periodic estimates of system state (e.g., population size) and models for projecting consequences of management actions for subsequent state dynamics. However, it is very difficult to draw...
Development of Patch Occupancy Models for Assessing the Spatial Distribution of Organisms
The Challenge: A variety of important questions about the conservation and management of natural resources requires information about the spatial distribution of organisms. For species of conservation concern, the size of a species’ range is a criterion used to assign species status as threatened or endangered. For invasive species and disease organisms, the dynamics of the species range expansion...
Statistical Research for the USGS - Amphibian Research and Monitoring Initiative
The Challenge: Since its inception in 2002 the USGS Amphibian Research and Monitoring Initiative (ARMI) has taken the lead in monitoring amphibian populations on Department of Interior lands. ARMI scientists work on a broad spectrum of species and management issues to address the core causes of amphibian declines. In many cases, research requires complex study designs and innovative methods. A key...
Evaluation of Potential Offshore Wind Projects in the Northeastern U.S. on Endangered Roseate Terns: Who is at Risk and When?
The Challenge: Terns in coastal areas of the Northeastern US likely will be impacted by construction and operation of offshore wind turbines. The “Cape Cod & Islands” (CCMA) area of Massachusetts is a particularly important area for the endangered Northwest Atlantic Roseate Tern (ROST) population as most ROSTs from throughout the breeding range (Nova Scotia to Long Island, New York) congregate...
Avian Indicators of Climate Change Based on the North American Breeding Bird Survey
Appropriate ecological indicators of climate change can be used to measure concurrent changes in ecological systems, inform management decisions, and potentially to project the consequences of climate change. However, many of the available indicators for North American birds do not account for imperfect observation. We proposed to use correlated-detection occupancy models to develop...
SERAP: Assessment of Climate and Land Use Change Impacts on Terrestrial Species
Researchers from North Carolina State University and the USGS integrated models of urbanization and vegetation dynamics with the regional climate models to predict vegetation dynamics and assess how landscape change could impact priority species, including North American land birds. This integrated ensemble of models can be used to predict locations where responses to climate change are...
Filter Total Items: 418
Stochastic seasonality and nonlinear density-dependent factors regulate population size in an African rodent Stochastic seasonality and nonlinear density-dependent factors regulate population size in an African rodent
Ecology has long been troubled by the controversy over how populations are regulated. Some ecologists focus on the role of environmental effects, whereas others argue that density-dependent feedback mechanisms are central. The relative importance of both processes is still hotly debated, but clear examples of both processes acting in the same population are rare. Keyfactor analysis...
Authors
H. Leirs, N. C. Stenseth, J.D. Nichols, J.E. Hines, R. Verhagen, W. Verheyen
Sources of variation in waterfowl survival rates Sources of variation in waterfowl survival rates
Because of the need to manage hunted populations of waterfowl (Anatidae), biologists have studied many demographic traits of waterfowl by analyzing band recoveries. These analyses have produced the most extensive and best estimates of survival available for any group of birds. Using these data, we examined several factors that might explain variation among annual survival rates to...
Authors
D.G. Krementz, R. J. Barker, J.D. Nichols
Ecology and management of subdivided animal populations Ecology and management of subdivided animal populations
No abstract available.
Authors
J.D. Lebreton, J.D. Nichols
Metodos cuantitativas contemporancos para entender y manejar poblaciones y comunidades animales Metodos cuantitativas contemporancos para entender y manejar poblaciones y comunidades animales
No abstract available.
Authors
M.J. Conroy, J.D. Nichols, E.R. Asanza
Capture-recapture analysis of a wintering black-capped chickadee population in Connecticut, 1958-1993 Capture-recapture analysis of a wintering black-capped chickadee population in Connecticut, 1958-1993
We investigated the dynamics of a wintering population of Black-capped Chickadees (Parus atricapillus) using data from a long-term capture-recapture study. Goodness-of-fit and likelihood-ratio tests indicated that the standard Jolly-Seber model was inadequate for the data, so we explored different parameterizations of a model in which survival probability for new captures differed from...
Authors
G. Loery, James D. Nichols, James E. Hines
The loss rates of web tags applied to day-old Anas and Aythya ducklings The loss rates of web tags applied to day-old Anas and Aythya ducklings
Researchers studied the loss rate of web tags on Anas and Aythya ducklings by double marking day-old ducklings of five species with web tags and plasticine-filled rings. Tag loss was examined over three-month, one-year, and three-year periods. Web tag loss was greatest for Anas and occurred mostly in the first three months following tagging.
Authors
Peter Blums, Aivars Mednis, I. Bauga, J.D. Nichols, J.E. Hines
Techniques for estimating abundance and species richness: Estimation of species richness Techniques for estimating abundance and species richness: Estimation of species richness
No abstract available.
Authors
J.D. Nichols, M.J. Conroy
Keys to a successful project: Associated data and planning: Data standards Keys to a successful project: Associated data and planning: Data standards
No abstract available.
Authors
R.W. McDiarmid, D.E. Wilson
Voucher specimens Voucher specimens
No abstract available.
Authors
R.P. Reynolds, R.J. Crombie, R.W. McDiarmid, Terry L. Yates
Introduction Introduction
No abstract available.
Authors
D.E. Wilson, J.D. Nichols, R. Rudran, C. Southwell