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Courses:
Ecology and Evolution (BIO 124), Forest Ecology (BIO 427).
Research Interests: Forest restoration ecology in tropical
and temperate regions, tree seedling response to environmental factors
and site treatments.
My research interest in forest ecology includes
temperate and tropical regions and focuses on seedling regeneration
ecology, succession, and restoration. I investigate the processes
affecting the regeneration of natural forests and the reintroduction of
economically important, native tree species to degraded
ecosystems. I use experimental treatments to identify tree
recruitment barriers, such as invasive plant competitors or
artificially high herbivore populations. Recently, I have
initiated research on the reintroduction of blight-resistant American
chestnut hybrids. I am also conducting studies on the forest
ecology of old growth hemlock forests that are threatened by an exotic
pest, the woolly adelgid. My basic applied research objective is
the identification of management techniques for enhancing forest
ecological integrity and maintaining forest diversity.
Selected
Publications:
Griscom, H.P., B.W. Griscom, P.M.S. Ashton.
Pattern and process of forest succession within experimental treatments
of a pasture in a dry tropical region, Azuero Peninsula,
Panama. Restoration Ecology. In Press.
Griscom, H.P., E.K.V. Kalko, P.M.S. Ashton.
2007 Frugivory by small vertebrates within a deforested,
dry tropical region of Central America. Biotropica. 39. 278-282.
Griscom, H.P., P.M.S. Ashton, G.P. Berlyn.
2005. Seedling survival and
growth of three native species in pastures: implications for dry
forest rehabilitation. Forest Ecology and Management. 218.
306-318.
Tomohiro, S.,M.S. Ashton, B. Singhakumara, H. P.
Griscom, S. Ediriweera, B.W. Griscom. 2006. Effects of fire
on the recruitment of rain forest
vegetation beneath Pinus caribaea
plantations, Sri Lanka. Forest Ecology and Management. 226.
357-363.
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