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Research
Interests:
I
have an array of research interests. However, I am particularly
interested in how changes the size, distribution, and genetic composition
of populations impact ecosystem processes. Much of the current concern
over the extinction crisis centers on the loss of species. However,
the relationship between biodiversity and ecosystem processes is
primarily a function of populations of species, and population change
can have a substantial impact on an ecosystem that is independent
of changes in species richness.
Native
Hawaiian succineid land-snails are a great model group in which
to study these relationships. They face many threats including habitat
loss/modification and the introduction of predators which includes
2 snail predators: the rosy wolf snail, Euglandina rosea, and the
omnivorous garlic snail, Oxychilus alliarius. However, they are
still abundant enough to conduct manipulative experiments. My three
research questions for my Ph.D. thesis include:
1)
What is the status of the 3 succineid species found between Hawaii
Volcanoes National Park and the Saddle Rd. on the island of Hawaii?
2)
What potential impacts do the introduced predatory snail species
have on the populations of succineids?
3)What
is the functional role of succineids in their environment, and how
does density impact ecosystem processes provided by these snails?
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