Cooperative Fish and Wildlife Research Units Program: Maine
Education, Research and Technical Assistance for Managing Our Natural Resources

Maine Project


Amphibian use of wetland-limited landscapes (Collaborator: A.J.K. Calhoun, UMaine)

January 2010 - December 2016


Personnel

Participating Agencies

  • Maine EPSCor Project
High elevation fishless lake in western Maine.

Amphibian populations face a multitude of complex threats, and habitat loss or modification is contributing to amphibian declines globally. This study examines vernal pool breeding amphibian species’ use of wetland-limited landscapes, to understand factors potentially affecting persistence of these species in western and northern Maine. We are monitoring movements of post-breeding wood frogs with radio telemetry to determine their hibernacula selection, and we resume tracking in late winter to determine wetlands used for breeding. The habitat use information gained from our telemetry studies will be combined with data from presence and reproductive effort surveys to improve our understanding of how wetlands and the surrounding high elevation landscapes are used throughout the year by pool-breeding species in Maine.

Research Publications Publication Date
Groff, L.A., A.J.K Calhoun, C.S. Loftin. 2015. LITHOBATES SYLVATICUS (Wood Frog). HABITAT USE. Northeastern Naturalist 46(2): 2015. | Download 2015-06-30
Groff, L.A., A.J.K. Calhoun, and C.S. Loftin. 2016. Hibernal Habitat Selection by Wood Frogs (Lithobates sylvaticus) in a Northern New England Montane Landscape. Journal of Herpetology 50(4):559-569. http://dx.doi.org/10.1670/15-131R1 | Abstract 2016-10-31
Groff, L.A., A.J.K. Calhoun, C.S. Loftin. 2017. Amphibian Terrestrial Habitat Selection and Movement Patterns Vary With Annual Life History Period. Canadian Journal of Zoology 95:433-442. http://dx.doi.org/10.1139/cjz-2016-0148 2017-07-31
Groff, L.A., A.L. Pitt, R.F. Baldwin, A.J.K. Calhoun, and C.S. Loftin. 2015. Evaluation of a waistband for attaching external transmitters to anurans. Wildlife Society Bulletin. | Download 2015-07-31
Groff, L.A., C.S. Loftin, and A.J.J. Calhoun. 2016. Predictors of Breeding Site Occupancy by Amphibians in Montane Landscapes. Journal of Wildlife Management. DOI: 10.1002/jwmg.21184 2016-10-31
Presentations Presentation Date
Groff, L., C.S. Loftin, and A.J.K Calhoun. 2011. Use of High Elevation Lake Landscapes by Pool Breeding Amphibians, 12 April, Maine Cooperative Fish and Wildlife Research Unit Annual Coordinating Committee Meeting, Wells Commons, University of Maine, Orono (poster). Invited. 2011-04-12
Groff, L., C.S. Loftin, and A.J.K Calhoun. 2011. Use of High Elevation Lake Landscapes by Pool Breeding Amphibians, 15 April, EPScOR; 2011 Annual NECC Meeting, Wells Conference Center, University of Maine, Orono (poster). Invited. 2011-04-15
Groff, L.A., A.J.K. Calhoun and C.S. Loftin. 2012. Habitat Use by Pool-Breeding Amphibians in Maine’s Western Highlands. Annual Coordinating Committee Meeting of the U.S. Geological Survey, Maine Cooperative Fish and Wildlife Research Unit; Orono, Maine, USA. 20 March. (poster) 2012-03-20
Groff, L.A., A.J.K. Calhoun and C.S. Loftin. 2012. Northeast Partners in Amphibian and Reptile Conservation; Crawford Notch, New Hampshire, USA. 25 July. (poster) 2012-07-25
Groff, L.A., A.J.K. Calhoun, and C.S. Loftin. 2013. Hibernation ecology of Lithobates sylvaticus in Maine's montane landscape. Northeast Natural History Conference, 13-15 April, Springfield, MA. 2013-04-13
Groff, L.A., C.S. Loftin, and A.J.K. Calhoun. 2014. Hibernation ecology of Lithobates sylvaticus in Maine's montane landscape. Presentation at the 70th Annual Northeast Association of Fish and Wildlife Agencies, April 13-15, Portland, ME. 2014-04-13
Groff, L.A., A.J.K. Calhoun, and C.S. Loftin. 2015. Habitat features mediate wood frog hibernaculum microclimate. 9th Northeast Alpine Stewardship Gathering, Baxter State Park, Millinocket, ME, 6-8 November 2015. 2015-11-07
Groff, L.A., A.J.K. Calhoun, and C.S. Loftin. 2015. Habitat features mediate wood frog hibernaculum microclimate. American Society of Ichthyologists and Herpetologists Annual Meeting, 15-19 July, Reno, NV. 2015-07-15
Groff, L.A., C.S. Loftin, and A.J.K. Calhoun. 2015. Local- and landscape-scale predictors of breeding site occupancy by pool-breeding amphibians in wetland-limited, montane landscapes. Presentation at the American Society of Ichthyologists and Herpetologists Annual Meeting, 15-19 July, Reno, NV. 2015-07-15
Groff, L.A., C.S. Loftin, and A.J.K. Calhoun. 2015. Local- and landscape-scale predictors of breeding site occupancy by pool-breeding amphibians in wetland-limited, montane landscapes. Presentation at the American Society of Ichthyologists and Herpetologists Annual Meeting, 15-19 July, Reno, NV. 2015-07-15
Groff, L.A., C.S. Loftin, and A.J.K. Calhoun. 2015. Predictors of breeding site occupancy by pool-breeding amphibians in Maine's wetland-limited, montane landscapes. 9th Northeast Alpine Stewardship Gathering, Baxter State Park, Millinocket, ME, 6-8 November 2015. 2015-11-07
Groff, L.A., C.S. Loftin, and A.J.K.Calhoun. 2015. Habitat selection by pool-breeding amphibians in Maine's montane landscape. Maine Cooperative Fish and Wildlife Research Unit Annual Coordinating Committee Meeting, Wells Conference Center, University of Maine, Orono,ME, 25 March. 2015-03-25
Theses and Dissertations Publication Date
Groff, L. 2016. The habitat ecology of pool breeding amphibians during all annual life history periods in the Mountains of the Dawn. Dissertation. The University of Maine, Orono, Maine. 147 pp. 2016-12-31