Undergraduate Research

Patrick Sargent, Janine Appleton, Teresa Zahn, & Kent Harlow, University of New Hampshire, 2012-2014

We are examining leukocyte development, morphology, and ratios in salamanders. We are particularly interested in ratios of neutrophils and lymphocytes and left shifts in the neutrophil line as indicators of chronic environmental stress in stream and terrestrial salamanders. Leukocyte differentials has the benefits of being relatively cheap compared to blood assays that require biochemical analysis. Additionally, traditional stress analysis with glucocorticoids is extremely sensitive to recent stress (<3 min) causing challenges for capture, handling, and determination of long-term stress. Leukocytes in blood circulation generally take >18 hours to change in response to stress (capture, handling), allowing for potentially better evaluation of chronic environmental stress.


Adam Marquis, University of New Hampshire Undergraduate, 2011-2012 (SURF)Hocking and Marquis

The effects of local and landscape characteristics on stream salamanders on an urbanization gradient.

News: http://unhtoday.wordpress.com/2011/06/29/salamanders-in-the-neighborhood/#wpl-likebox

Presentation:

Marquis, A., D.J. Hocking, K.J. Babbitt. The effects of local and landscape characteristics on stream salamanders on an urbanization gradient. 2012 Undergraduate Research Conference, UNH, Durham, NH.


 Elizabeth Willey, University of New Hampshire Undergraduate, 2008 (SURF)

Effects of fragmentation on plethodontid salamanders in New Hampshire.

Presentation:

Willey, E., D.J. Hocking, K.J. Babbitt. The effects of forest fragmentation on the abundance and body condition of the red backed salamander (Plethodon cinereus). 2010 Undergraduate Research Conference, UNH, Durham, NH.


Erik McDonald, University of Missouri Undergraduate, 2006 – 2007

Effects of experimental timber harvest on terrestrial amphibians and reptiles.

Publication:

Scheffers, B., E. D. McDonald, D. J. Hocking, C. A. Conner, and R. D. Semlitsch. 2009. A comparison of two artificial cover objects for sampling amphibians and reptiles. Herpetological Review 40(4): 419-421.


Allison Barlows, University of Missouri Undergraduate, 2006 – 2007

The effects of shade and odonate predators on the performance of gray treefrog tadpoles and juveniles.

Presentation:

Barlows, A., D. J. Hocking, and R. D. Semlitsch.  Effects of shade and predation on survival and growth of larval gray treefrogs (Hyla versicolor) in Missouri.  2006 University of Missouri-Columbia Undergraduate Research and Creative Achievements Forum.


Rachel Sinnot and Christina Wakeman, U. of Missouri Undergraduates, 2005-2007

Analysis of amphibian population age structure using skeletochronology.


Rachel Mahan, University of Missouri Undergraduate, 2005-2006 (REU)

Forest management effects on the breeding site selection of treefrogs in the Southeastern U.S.

Presentations:

Mahan, R. D., B. B. Rothermel, D. J. Hocking, J. W. Gibbons, and R. D. Semlitsch. Effects of forest management practices on treefrog oviposition site choice. 2005 Summer Undergraduate Research and Creative Achievements Forum.

Mahan, R. D., B. B. Rothermel, D. J. Hocking, J. W. Gibbons, and R. D. Semlitsch. Effects of forest management practices on treefrog oviposition site choice. 2005 Research Experiences for Undergraduates Program, University of Georgia’s Savannah River Ecology Laboratory.