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Amphibian Monitoring - current studies

Evan Grant

Email: ehgrant@usgs.gov

Website: http://www.pwrc.usgs.gov/nearmi/

Areas of Study

Managing the Extinction risk of the Shenandoah Salamander under predicted climate change

Amphibian Research and Monitoring Program

Publications

Adams, M. J., D. A. W. Miller, E. Muths, P. S. Corn, E. H. C. Grant, L. L. Bailey, G. M. Fellers, R. N. Fisher, W. J. Sadinski, H. Waddle, and S. C. Walls. 2013. Trends in amphibian occupancy in the United States. PLoS ONE 8(5):article no. e64347. Abstract

Grant, E. H. C., E. F. Zipkin, J. D. Nichols, and J. P. Campbell. 2013. A strategy for monitoring and managing declines in an amphibian community. Conservation Biology Online Early September 3 Abstract

Green, A. W., M. B. Hooten, E. H. C. Grant, and L. L. Bailey. 2013. Evaluating breeding and metamorph occupancy and vernal pool management effects for wood frogs using a hierarchical model. Journal of Applied Ecology 50(5):1116-1123. Abstract

Kendall, W. L., J. E. Hines, J. D. Nichols, and E. H. C. Grant. 2013. Relaxing the closure assumption in occupancy models: Staggered arrival and departure times. Ecology 94(3):610-617. Abstract

Yackulic, C., R. Chandler, E. F. Zipkin, J. A. Royle, J. D. Nichols, E. H. C. Grant, and S. Veran. 2013. Presence-only modeling using MAXENT: when can we trust the inferences? Methods in Ecology and Evolution 4(3):236-243. Abstract

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Jim Nichols

Email: jnichols@usgs.gov

Areas of Study

Statistical Research at USGS - Amphibian Research and Monitoring Initiative

Publications

Bailey, L. L., D. I. MacKenzie, and J. D. Nichols. 2013. Advances and applications of occupancy models. Methods in Ecology and Evolution Online Early September 4 Abstract

Grant, E. H. C., E. F. Zipkin, J. D. Nichols, and J. P. Campbell. 2013. A strategy for monitoring and managing declines in an amphibian community. Conservation Biology Online Early September 3 Abstract

Kendall, W. L., J. E. Hines, J. D. Nichols, and E. H. C. Grant. 2013. Relaxing the closure assumption in occupancy models: Staggered arrival and departure times. Ecology 94(3):610-617. Abstract

Miller, D. A. W., C. S. Brehme, J. E. Hines, J. D. Nichols, and R. N. Fisher. 2012. Joint estimation of habitat dynamics and species interactions: Disturbance reduces co-occurrence of non-native predators with an endangered toad. Journal of Animal Ecology 81(6):1288-1297. Abstract

Green, A. W., L. L. Bailey, and J. D. Nichols. 2011. Exploring sensitivity of a multistate occupancy model to inform management decisions. Journal of Applied Ecology 48(4):1007–1016. Abstract

MacKenzie, D. I., L. L. Bailey, J. E. Hines, and J. D. Nichols. 2011. An integrated model of habitat and species occurrence dynamics. Methods in Ecology and Evolution 2(6):612-622. Abstract

Miller, D. A., J. D. Nichols, B. T. McClintock, E. H. C. Grant, L. L. Bailey, and L. A. Weir. 2011. Improving occupancy estimation when two types of observational error occur: non-detection and species misidentification. Ecology 92(7):1422-1428. Abstract

Bailey, L. L. and J. D. Nichols. 2010. Capture-mark-recapture, removal sampling and occupancy models. Pages 447-463 in C. Kenneth Dodd Jr., editor. Amphibian Ecology and Conservation: A Handbook of Techniques. Oxford University Press, New York. 584 pp. Abstract

Grant, E. H. C., J. D. Nichols, W. H. Lowe, and W. F. Fagan. 2010. Use of multiple dispersal pathways facilitates amphibian persistence in stream networks. Proceedings of the National Academy of Sciences of the USA 107(15):6936-6940. Abstract

McClintock, B. T., J. D. Nichols, L. L. Bailey, D. I. MacKenzie, W. L. Kendall, and A. B. Franklin. 2010. Seeking a second opinion: uncertainty in disease ecology. Ecology Letters 13(6):659-674. Abstract

MacKenzie, D. I., J. D. Nichols, M. E. Seamans, and R. J. Gutierrez. 2009. Dynamic models for problems of species occurrence with multiple states. Ecology 90(3):823-835. Abstract

Nichols, J. D., L. L. Bailey, A. F. O'Connell, Jr., N. W. Talancy, E. H. C. Grant, A. T. Gilbert, E. M. Annand, T. P. Husband, and J. E. Hines. 2008. Multi-scale occupancy estimation and modelling using multiple detection methods. Journal of Applied Ecology 45(5):1321-1329. Abstract

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Linda Weir

Email: lweir@usgs.gov

Website: http://www.pwrc.usgs.gov/NAAMP/

Areas of Study

North American Amphibian Monitoring Program

Publications

Miller, D. A. W., L. A. Weir, B. T. McClintock, E. H. C. Grant, L. L. Bailey, and T. R. Simons. 2012. Experimental investigation of false positive errors in auditory species occurrence surveys. Ecological Applications 22(5):1665–1674. Abstract

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Last Updated: January 2014

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