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: 418
Estimating site occupancy, colonization, and local extinction when a species is detected imperfectly Estimating site occupancy, colonization, and local extinction when a species is detected imperfectly
Few species are likely to be so evident that they will always be detected when present. Failing to allow for the possibility that a target species was present, but undetected, at a site will lead to biased estimates of site occupancy, colonization, and local extinction probabilities. These population vital rates are often of interest in long-term monitoring programs and metapopulation...
Authors
D.I. MacKenzie, J.D. Nichols, J.E. Hines, M. G. Knutson, A.B. Franklin
On the use of attractor dimension as a feature in structural health monitoring On the use of attractor dimension as a feature in structural health monitoring
Recent works in the vibration-based structural health monitoring community have emphasised the use of correlation dimension as a discriminating statistic in seperating a damaged from undamaged response. This paper explores the utility of attractor dimension as a 'feature' and offers some comparisons between different metrics reflecting dimension. This focus is on evaluating the...
Authors
J.M. Nichols, L.N. Virgin, M.D. Todd, J.D. Nichols
Temporal variability of local abundance, sex ratio and activity in the Sardinian chalk hill blue butterfly Temporal variability of local abundance, sex ratio and activity in the Sardinian chalk hill blue butterfly
When capturing and marking of individuals is possible, the application of newly developed capture-recapture models can remove several sources of bias in the estimation of population parameters such as local abundance and sex ratio. For example, observation of distorted sex ratios in counts or captures can reflect either different abundances of the sexes or different sex-specific capture
Authors
P. Casula, J.D. Nichols
Spring hunting changes the regional movements of migrating greater snow geese Spring hunting changes the regional movements of migrating greater snow geese
1. Human-induced disturbance such as hunting may influence the migratory behaviour of long-distance migrants. In 1999 and 2000 a spring hunt of greater snow geese Anser caerulescens atlanticus occurred for the first time in North America since 1916, aimed at stopping population growth to protect natural habitats. 2. We evaluated the impact of this hunt on the staging movements of geese...
Authors
A. Bechet, J.-F. Giroux, G. Gauthier, J.D. Nichols, J.E. Hines
Adjusting multistate capture-recapture models for misclassification bias: manatee breeding proportions Adjusting multistate capture-recapture models for misclassification bias: manatee breeding proportions
Matrix population models are important tools for research and management of populations. Estimating the parameters of these models is an important step in applying them to real populations. Multistate capture-recapture methods have provided a useful means for estimating survival and parameters of transition between locations or life history states but have mostly relied on the assumption...
Authors
W. L. Kendall, J.E. Hines, J.D. Nichols
Estimating rates of local extinction and colonization in colonial species and an extension to the metapopulation and community levels Estimating rates of local extinction and colonization in colonial species and an extension to the metapopulation and community levels
Coloniality has mainly been studied from an evolutionary perspective, but relatively few studies have developed methods for modelling colony dynamics. Changes in number of colonies over time provide a useful tool for predicting and evaluating the responses of colonial species to management and to environmental disturbance. Probabilistic Markov process models have been recently used to...
Authors
C. Barbraud, J.D. Nichols, J.E. Hines, H. Hafner
Science and Products
Filter Total Items: 418
Estimating site occupancy, colonization, and local extinction when a species is detected imperfectly Estimating site occupancy, colonization, and local extinction when a species is detected imperfectly
Few species are likely to be so evident that they will always be detected when present. Failing to allow for the possibility that a target species was present, but undetected, at a site will lead to biased estimates of site occupancy, colonization, and local extinction probabilities. These population vital rates are often of interest in long-term monitoring programs and metapopulation...
Authors
D.I. MacKenzie, J.D. Nichols, J.E. Hines, M. G. Knutson, A.B. Franklin
On the use of attractor dimension as a feature in structural health monitoring On the use of attractor dimension as a feature in structural health monitoring
Recent works in the vibration-based structural health monitoring community have emphasised the use of correlation dimension as a discriminating statistic in seperating a damaged from undamaged response. This paper explores the utility of attractor dimension as a 'feature' and offers some comparisons between different metrics reflecting dimension. This focus is on evaluating the...
Authors
J.M. Nichols, L.N. Virgin, M.D. Todd, J.D. Nichols
Temporal variability of local abundance, sex ratio and activity in the Sardinian chalk hill blue butterfly Temporal variability of local abundance, sex ratio and activity in the Sardinian chalk hill blue butterfly
When capturing and marking of individuals is possible, the application of newly developed capture-recapture models can remove several sources of bias in the estimation of population parameters such as local abundance and sex ratio. For example, observation of distorted sex ratios in counts or captures can reflect either different abundances of the sexes or different sex-specific capture
Authors
P. Casula, J.D. Nichols
Spring hunting changes the regional movements of migrating greater snow geese Spring hunting changes the regional movements of migrating greater snow geese
1. Human-induced disturbance such as hunting may influence the migratory behaviour of long-distance migrants. In 1999 and 2000 a spring hunt of greater snow geese Anser caerulescens atlanticus occurred for the first time in North America since 1916, aimed at stopping population growth to protect natural habitats. 2. We evaluated the impact of this hunt on the staging movements of geese...
Authors
A. Bechet, J.-F. Giroux, G. Gauthier, J.D. Nichols, J.E. Hines
Adjusting multistate capture-recapture models for misclassification bias: manatee breeding proportions Adjusting multistate capture-recapture models for misclassification bias: manatee breeding proportions
Matrix population models are important tools for research and management of populations. Estimating the parameters of these models is an important step in applying them to real populations. Multistate capture-recapture methods have provided a useful means for estimating survival and parameters of transition between locations or life history states but have mostly relied on the assumption...
Authors
W. L. Kendall, J.E. Hines, J.D. Nichols
Estimating rates of local extinction and colonization in colonial species and an extension to the metapopulation and community levels Estimating rates of local extinction and colonization in colonial species and an extension to the metapopulation and community levels
Coloniality has mainly been studied from an evolutionary perspective, but relatively few studies have developed methods for modelling colony dynamics. Changes in number of colonies over time provide a useful tool for predicting and evaluating the responses of colonial species to management and to environmental disturbance. Probabilistic Markov process models have been recently used to...
Authors
C. Barbraud, J.D. Nichols, J.E. Hines, H. Hafner