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: 417
Estimating nest detection probabilities for white-winged dove nest transects in Tamaulipas, Mexico Estimating nest detection probabilities for white-winged dove nest transects in Tamaulipas, Mexico
Nest transects in nesting colonies provide one source of information on White-winged Dove (Zenaida asiatica asiatica) population status and reproduction. Nests are counted along transects using standardized field methods each year in Texas and northeastern Mexico by personnel associated with Mexico's Office of Flora and Fauna, the Texas Parks and Wildlife Department, and the U.S. Fish...
Authors
J.D. Nichols, R. E. Tomlinson, G. Waggerman
Effect of Orthene on an unconfined population of the meadow vole (Microtus pennsylvanicus) Effect of Orthene on an unconfined population of the meadow vole (Microtus pennsylvanicus)
The possible impact on Microtus pennsylvanicus of ground applications of Orthene® insecticide was investigated in old-field habitats in northern Maryland during 1982 and 1983. The treatment grids in 1982 and 1983 were sprayed at 0.62 and 0.82 kg active ingredient/ha, respectively. A capture–recapture design robust to unequal capture probabilities was utilized to estimate population size...
Authors
David A. Jett, James D. Nichols, James E. Hines
Sources of variation in extinction rates, turnover, and diversity of marine invertebrate families during the Paleozoic Sources of variation in extinction rates, turnover, and diversity of marine invertebrate families during the Paleozoic
We have recently shown how capture-recapture models can be used in conjunction with stratigraphic range data to estimate taxonomic extinction rates and taxonomic diversity. Here we present a new method that can be used to estimate taxonomic turnover (defined here as the proportion of taxa extant at time i, that originated in the interval i – 1 to i). We used these methods in conjunction...
Authors
J.D. Nichols, R.W. Morris, C. Brownie, K. H. Pollock
Constant-parameter capture-recapture models Constant-parameter capture-recapture models
Jolly (1982, Biometrics 38, 301-321) presented modifications of the Jolly-Seber model for capture-recapture data, which assume constant survival and/or capture rates. Where appropriate, because of the reduced number of parameters, these models lead to more efficient estimators than the Jolly-Seber model. The tests to compare models given by Jolly do not make complete use of the data, and...
Authors
C. Brownie, J.E. Hines, J.D. Nichols
The role of heterogeneity in animal population dynamics The role of heterogeneity in animal population dynamics
No abstract available.
Authors
Douglas H. Johnson, K.P. Burnham, J.D. Nichols
Dynamics of a black-capped chickadee population, 1958-1983 Dynamics of a black-capped chickadee population, 1958-1983
The dynamics of a wintering population of Black—capped Chickadees (Parus atricapillus) were studied from 1958—1983 using capture—recapture methods. The Jolly—Seber model was used to obtain annual estimates of population size, survival rate, and recruitment. The average estimated population size over this period was °160 birds. The average estimated number of new birds entering the...
Authors
G. Loery, James D. Nichols
Science and Products
Filter Total Items: 417
Estimating nest detection probabilities for white-winged dove nest transects in Tamaulipas, Mexico Estimating nest detection probabilities for white-winged dove nest transects in Tamaulipas, Mexico
Nest transects in nesting colonies provide one source of information on White-winged Dove (Zenaida asiatica asiatica) population status and reproduction. Nests are counted along transects using standardized field methods each year in Texas and northeastern Mexico by personnel associated with Mexico's Office of Flora and Fauna, the Texas Parks and Wildlife Department, and the U.S. Fish...
Authors
J.D. Nichols, R. E. Tomlinson, G. Waggerman
Effect of Orthene on an unconfined population of the meadow vole (Microtus pennsylvanicus) Effect of Orthene on an unconfined population of the meadow vole (Microtus pennsylvanicus)
The possible impact on Microtus pennsylvanicus of ground applications of Orthene® insecticide was investigated in old-field habitats in northern Maryland during 1982 and 1983. The treatment grids in 1982 and 1983 were sprayed at 0.62 and 0.82 kg active ingredient/ha, respectively. A capture–recapture design robust to unequal capture probabilities was utilized to estimate population size...
Authors
David A. Jett, James D. Nichols, James E. Hines
Sources of variation in extinction rates, turnover, and diversity of marine invertebrate families during the Paleozoic Sources of variation in extinction rates, turnover, and diversity of marine invertebrate families during the Paleozoic
We have recently shown how capture-recapture models can be used in conjunction with stratigraphic range data to estimate taxonomic extinction rates and taxonomic diversity. Here we present a new method that can be used to estimate taxonomic turnover (defined here as the proportion of taxa extant at time i, that originated in the interval i – 1 to i). We used these methods in conjunction...
Authors
J.D. Nichols, R.W. Morris, C. Brownie, K. H. Pollock
Constant-parameter capture-recapture models Constant-parameter capture-recapture models
Jolly (1982, Biometrics 38, 301-321) presented modifications of the Jolly-Seber model for capture-recapture data, which assume constant survival and/or capture rates. Where appropriate, because of the reduced number of parameters, these models lead to more efficient estimators than the Jolly-Seber model. The tests to compare models given by Jolly do not make complete use of the data, and...
Authors
C. Brownie, J.E. Hines, J.D. Nichols
The role of heterogeneity in animal population dynamics The role of heterogeneity in animal population dynamics
No abstract available.
Authors
Douglas H. Johnson, K.P. Burnham, J.D. Nichols
Dynamics of a black-capped chickadee population, 1958-1983 Dynamics of a black-capped chickadee population, 1958-1983
The dynamics of a wintering population of Black—capped Chickadees (Parus atricapillus) were studied from 1958—1983 using capture—recapture methods. The Jolly—Seber model was used to obtain annual estimates of population size, survival rate, and recruitment. The average estimated population size over this period was °160 birds. The average estimated number of new birds entering the...
Authors
G. Loery, James D. Nichols