Only one occurrence is known in the Appalachian Mountains of Virginia. The population has fluctuated but current management has increased numbers. Threats through time include fire suppression, which inhibits germination and degrades the habitat, and overgrazing by deer and feral livestock, and collection by people.
Browsing by dear and feral goats
Invasion of weedy competitors following habitat alteration
Lack of opportunity for outcrossing
Excessive collection by botanists
Susceptibility to chance events (since population is so small)
One element occurrence (3 plants)
Seed collection and germination studies: In 1988, a viable seed bank was found to exist in the soil surrounding the remaining plants (Jacobs 1990). Further studies in 1989-1990 determined that fire was needed to break dormancy (Baskin & Baskin 1997).
Pollination studies at Virginia Polytechnic Institute and State University showed that Iliamna corei is self-incompatible. The low sexual fecundity observed among the three remaining plants is therefore explained by the lack of opportunity for cross-pollination (Jacobs 1990).
Disturbance history and prescribed burn studies were conducted in 1991-1993 (by the Virginia Department of Conservation and Recreation's Division of Natural Heritage and The Nature Conservancy)
Ex-situ burn research - conducted at Virginia Polytechnic Institute and State University starting in 1994
Population site currently owned by The Nature Conservancy (the Narrows Nature Preserve, established in 1992)
Plants have been protected from animal browsing since 1987
Monitoring of mature plants began in 1986 (recording flower and fruit production), coordinated by Virginia Polytechnic Institute and State University botany staff and research assistants
Surveys for additional sites were conducted between 1986 and 1989. No new populations were located
Seed is stored at the North Carolina Botanical Garden (Chapel Hill); plants are maintained in experimental gardens at Virginia Polytechnic Institute and State University (Blacksburg), which have produced viable seed for experimental purposes and reintroduction
Prescribed burns were conducted in 1991-1993, which was followed by successful germination and seedling establishment
Continue prescribed burn research and management to determine long-term fire management strategies
Monitor seedling, juvenile and mature Iliamna corei plants as well as community vegetation in burned areas
Increase seed collection by out-growing plants and making controlled cross-pollinations.
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