Thomas Stanley, Ph.D. (Former Employee)
Science and Products
Filter Total Items: 51
Avian responses to late-season grazing in a shrub-willow floodplain
Riparian vegetation in western North America provides important habitat for breeding birds and valuable forage for grazing livestock. Whereas a number of studies have documented the response of riparian vegetation to the removal of cattle, few have experimentally evaluated specific grazing systems. We evaluated the responses of vegetation and breeding birds to two cycles of late-season (August–Sep
Authors
T.R. Stanley, F.L. Knopf
Breeding habitat use by sympatric and allopatric populations of Wilson's Warblers and Yellow Warblers
We studied Wilson's Warbler (Wilsonia pusilla) and Yellow Warbler (Dendroica petechia) habitat use in allopatric and sympatric populations in the Rocky Mountains of northern Colorado and southeastern Wyoming in order to better understand the different habitat needs and interactions of these two species. Foraging Wilson's Warblers and Yellow Warblers used very similar habitat, both selecting larger
Authors
J. M. Ruth, Thomas R. Stanley
Nest predation on black-tailed prairie dog colonies
Nest predation is the principal cause of mortality for many grassland birds. Predation rates may be higher on prairie dog colonies because they may have less available nesting cover and may increase predator abundance. We compared 14-day nest predation rates for 1,764 artificial nests on 102 black-tailed prairie dog (Cynomys ludovicianus) colonies and their paired off-colony sites (similar habitat
Authors
B.W. Baker, T.R. Stanley, G. E. Plumb
Modeling and estimation of stage-specific daily survival probabilities of nests
In studies of avian nesting success, it is often of interest to estimate stage-specific daily survival probabilities of nests. When data can be partitioned by nesting stage (e.g., incubation stage, nestling stage), piecewise application of the Mayfield method or Johnson's method is appropriate. However, when the data contain nests where the transition from one stage to the next occurred during the
Authors
T.R. Stanley
Use of oxytetracycline in batch-marking post-metamorphic boreal toads
No abstract available.
Authors
E. Muths, P. S. Corn, T.R. Stanley
Predation of artificial ground nests on white-tailed prairie dog colonies
No abstract available.
Authors
B.W. Baker, T.R. Stanley, J.A. Sedgwick
Do mammalian nest predators follow human scent trails in the shortgrass prairie?
Nest predation, the major cause of nest failure in passerines, has exerted a strong influence on the evolution of life history traits of birds. Because human disturbance during nest monitoring may alter predation rates, we investigated whether human scent affected the survival of artificial ground nests in shortgrass prairie. Our experiment consisted of two treatments, one in which there was no at
Authors
S. K. Skagen, T.R. Stanley, M.B. Dillon
A goodness-of-fit test for capture-recapture model Mt under closure
A new, fully efficient goodness-of-fit test for the time-specific closed-population capture-recapture model Mt is presented. This test is based on the residual distribution of the capture history data given the maximum likelihood parameter estimates under model Mt, is partitioned into informative components, and is based on chi-square statistics. Comparison of this test with Leslie's test (Leslie,
Authors
T.R. Stanley, K.P. Burnham
A closure test for time-specific capture-recapture data
The assumption of demographic closure in the analysis of capture-recapture data under closed-population models is of fundamental importance. Yet, little progress has been made in the development of omnibus tests of the closure assumption. We present a closure test for time-specific data that, in principle, tests the null hypothesis of closed-population model M(t) against the open-population Jolly-
Authors
T.R. Stanley, K.P. Burnham
Estimator selection for closed-population capture: recapture
For valid statistical inference, it is important to select an appropriate statistical model. In the analysis of capture-recapture data under the closed-population models of Otis et al. (1978), information theoretic and hypothesis testing approaches to model selection are not practical, because some of the models have likelihoods with nonidenti- fiable parameters. A further problem is that, for som
Authors
Thomas R. Stanley, Kenneth P. Burnham
Information-theoretic model selection and model averaging for closed-population capture-recapture studies
Specification of an appropriate model is critical to valid statistical inference. Given the “true model” for the data is unknown, the goal of model selection is to select a plausible approximating model that balances model bias and sampling variance. Model selection based on information criteria such as AIC or its variant AICc, or criteria like CAIC, has proven useful in a variety of contexts incl
Authors
Thomas R. Stanley, Kenneth P. Burnham
619 ecosystem management projects
No abstract available.
Authors
Thomas R. Stanley, Joel T. Heinen, James R. Strittholt, Philip M. Fearnside, Gillian Cooper-Driver
Non-USGS Publications**
Stanley, T.R., Spann, J.W., Smith, G.J. et al. Arch. Environ. Contam. Toxicol. (1994) 26: 444. doi:10.1007/BF00214145
Stanley, T.R. 1996. European tools to consider. Review of the book: Managing habitats for conservation, by W.J. Sutherland and D.A. Hill (eds.). Conservation Biology. 10(4): 1300-1301.
Stanley, T.R. 1994. A cottontail-habitat model for evaluating the Conservation Reserve Program. Fort Collins, CO46 p.
**Disclaimer: The views expressed in Non-USGS publications are those of the author and do not represent the views of the USGS, Department of the Interior, or the U.S. Government.
Science and Products
Filter Total Items: 51
Avian responses to late-season grazing in a shrub-willow floodplain
Riparian vegetation in western North America provides important habitat for breeding birds and valuable forage for grazing livestock. Whereas a number of studies have documented the response of riparian vegetation to the removal of cattle, few have experimentally evaluated specific grazing systems. We evaluated the responses of vegetation and breeding birds to two cycles of late-season (August–Sep
Authors
T.R. Stanley, F.L. Knopf
Breeding habitat use by sympatric and allopatric populations of Wilson's Warblers and Yellow Warblers
We studied Wilson's Warbler (Wilsonia pusilla) and Yellow Warbler (Dendroica petechia) habitat use in allopatric and sympatric populations in the Rocky Mountains of northern Colorado and southeastern Wyoming in order to better understand the different habitat needs and interactions of these two species. Foraging Wilson's Warblers and Yellow Warblers used very similar habitat, both selecting larger
Authors
J. M. Ruth, Thomas R. Stanley
Nest predation on black-tailed prairie dog colonies
Nest predation is the principal cause of mortality for many grassland birds. Predation rates may be higher on prairie dog colonies because they may have less available nesting cover and may increase predator abundance. We compared 14-day nest predation rates for 1,764 artificial nests on 102 black-tailed prairie dog (Cynomys ludovicianus) colonies and their paired off-colony sites (similar habitat
Authors
B.W. Baker, T.R. Stanley, G. E. Plumb
Modeling and estimation of stage-specific daily survival probabilities of nests
In studies of avian nesting success, it is often of interest to estimate stage-specific daily survival probabilities of nests. When data can be partitioned by nesting stage (e.g., incubation stage, nestling stage), piecewise application of the Mayfield method or Johnson's method is appropriate. However, when the data contain nests where the transition from one stage to the next occurred during the
Authors
T.R. Stanley
Use of oxytetracycline in batch-marking post-metamorphic boreal toads
No abstract available.
Authors
E. Muths, P. S. Corn, T.R. Stanley
Predation of artificial ground nests on white-tailed prairie dog colonies
No abstract available.
Authors
B.W. Baker, T.R. Stanley, J.A. Sedgwick
Do mammalian nest predators follow human scent trails in the shortgrass prairie?
Nest predation, the major cause of nest failure in passerines, has exerted a strong influence on the evolution of life history traits of birds. Because human disturbance during nest monitoring may alter predation rates, we investigated whether human scent affected the survival of artificial ground nests in shortgrass prairie. Our experiment consisted of two treatments, one in which there was no at
Authors
S. K. Skagen, T.R. Stanley, M.B. Dillon
A goodness-of-fit test for capture-recapture model Mt under closure
A new, fully efficient goodness-of-fit test for the time-specific closed-population capture-recapture model Mt is presented. This test is based on the residual distribution of the capture history data given the maximum likelihood parameter estimates under model Mt, is partitioned into informative components, and is based on chi-square statistics. Comparison of this test with Leslie's test (Leslie,
Authors
T.R. Stanley, K.P. Burnham
A closure test for time-specific capture-recapture data
The assumption of demographic closure in the analysis of capture-recapture data under closed-population models is of fundamental importance. Yet, little progress has been made in the development of omnibus tests of the closure assumption. We present a closure test for time-specific data that, in principle, tests the null hypothesis of closed-population model M(t) against the open-population Jolly-
Authors
T.R. Stanley, K.P. Burnham
Estimator selection for closed-population capture: recapture
For valid statistical inference, it is important to select an appropriate statistical model. In the analysis of capture-recapture data under the closed-population models of Otis et al. (1978), information theoretic and hypothesis testing approaches to model selection are not practical, because some of the models have likelihoods with nonidenti- fiable parameters. A further problem is that, for som
Authors
Thomas R. Stanley, Kenneth P. Burnham
Information-theoretic model selection and model averaging for closed-population capture-recapture studies
Specification of an appropriate model is critical to valid statistical inference. Given the “true model” for the data is unknown, the goal of model selection is to select a plausible approximating model that balances model bias and sampling variance. Model selection based on information criteria such as AIC or its variant AICc, or criteria like CAIC, has proven useful in a variety of contexts incl
Authors
Thomas R. Stanley, Kenneth P. Burnham
619 ecosystem management projects
No abstract available.
Authors
Thomas R. Stanley, Joel T. Heinen, James R. Strittholt, Philip M. Fearnside, Gillian Cooper-Driver
Non-USGS Publications**
Stanley, T.R., Spann, J.W., Smith, G.J. et al. Arch. Environ. Contam. Toxicol. (1994) 26: 444. doi:10.1007/BF00214145
Stanley, T.R. 1996. European tools to consider. Review of the book: Managing habitats for conservation, by W.J. Sutherland and D.A. Hill (eds.). Conservation Biology. 10(4): 1300-1301.
Stanley, T.R. 1994. A cottontail-habitat model for evaluating the Conservation Reserve Program. Fort Collins, CO46 p.
**Disclaimer: The views expressed in Non-USGS publications are those of the author and do not represent the views of the USGS, Department of the Interior, or the U.S. Government.
*Disclaimer: Listing outside positions with professional scientific organizations on this Staff Profile are for informational purposes only and do not constitute an endorsement of those professional scientific organizations or their activities by the USGS, Department of the Interior, or U.S. Government