Elizabeth Summers
M.S. Candidate
Research
Biological
assessments (bioassessments) are a useful approach to evaluating the state
of ecological function in an ecosystem.
In this study, I am sampling avian, amphibian and vegetation communities
along with various abiotic variables (e.g., microclimate, soil characteristics,
hydrology) to build a suite of IBI bioassessment models using data collected
from 17 WRP easements and 4 reference sites in western Tennessee. Bottomland restoration sites range in age
from 2 – 20 years, and acreage varies from small (<10 ha) to large (>100
ha). Reference sites are located along
the Hatchie
River watershed, which is the longest unchannelized tributary of the lower
Mississippi River (The Nature
Conservancy 2007). In addition to IBI models, I will evaluate
the effectiveness of hydrogeomorphic (HGM) wetland bioassessment (Brinson
1993).
The objectives of my study are:
1)
Quantify and compare abiotic variables (e.g.,
microclimate, soil characteristics, hydrology) and vegetation, amphibian and
avian communities between WRP and reference sites.
2)
Develop index of biological integrity (IBI) models
that quantify ecological function on WRP sites.
3)
Compare predictions of biological complexity from
previously developed HGM models with field measurements.
4)
Provide standards for monitoring state of ecological
restoration at reforested WRP sites.
Collaborators:
USDA Natural Resources Conservation Service (Agricultural Wildlife Conservation Center)
and The
Nature Conservancy
References:
Brinson, M. M. 1993. A Hydrogeomorphic Classification for Wetlands. U.S. Army Corps of Engineers.
Johnson, J. W. 2007. Rivers Under Siege: The Troubles Saga of West Tennessee Wetlands. University of Tennessee Press.
The Nature Conservancy. 2007. Hatchie River [http://www.nature.org/wherewework/greatrivers/namerica/art19852.html].
Presentations
1.
Summers, E. A., and M. J. Gray. 2009. Developing
Models to Monitor Ecological Restoration in Hardwood Bottomlands. Annual Conference of the Southeastern
Association of Fish and Wildlife Agencies, Atlanta, GA. Poster.
2.
Summers, E. A., and M. J. Gray. 2009. Bird
Assemblages at Hardwood Bottomland Restoration Sites in Western Tennessee. Annual Conference of American Ornithologists’
Union, Philadelphia, PA. Poster.
3.
Summers, E. A., and M. J. Gray. 2009. Amphibian and bird
assemblages at hardwood bottomland restoration sites in western Tennessee. Annual Meeting of the Tennessee Chapter of
The Wildlife Society, Pikeville, TN. Presentation.
Personal
Hello!
I grew up in
In my spare time, I enjoy playing the
fiddle, hiking, paddling, cross-country skiing, cooking vegetarian food and
practicing yoga. I love being outdoors
and take every opportunity to look for birds, butterflies and other interesting
wildlife. I strongly believe in
adopting a more sustainable lifestyle, and I am always striving to make
improvements in that direction, from reducing energy use to adopting a vegetarian
diet.
Contact Information
Email: esummer2@utk.edu
Phone: 865-974-3897
UT Department of
Forestry, Wildlife and Fisheries