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Long-term trends in deer abundance provide one measure of assessing
their potential as a problem for a park. Documenting long-term
patterns in deer numbers allows one to evaluate correlations with
changes in vegetation (e.g., through restoration of the cultural
landscape). With this information resource managers can more
effectively identify and potentially mitigate damage caused to
vegetation communities and endangered plant populations by deer.
Monitoring data also helps managers assess safety risks from
collisions and disease transmission. Long-term monitoring of deer
numbers is critical in evaluating any population control measures a
park may implement.
During surveys in 2006, the authors documented 35 invasive, exotic
plant species on Wilson's Creek National Battlefield. Their
findings are detailed in this report.
Homestead National Monument of America (HOME) is located in the
southeast corner of Nebraska (Figure 1). The Monument was
established in 1936 to commemorate the Homestead Act of 1862, a law
intended to stimulate the agricultural economy through free land
deeds. HOME includes the 160 acres once owned by Daniel Freeman,
who is credited with filing the first homestead claim in the United
States (Hutchinson, 1992). For the settlers of the Great Plains,
the prairie initially provided food for livestock and housing by
way of sod. A great deal of original prairie has since been
converted for agricultural purposes. In 1939 a hundred acres of
land at HOME was restored to tallgrass prairie, making it the
second oldest prairie restoration in the country. The restored
prairie can provide a comprehensive historical view of what the
landscape looked like at the time of the early settlers.
Vegetation community monitoring in the HTLN parks is designed to
detect and describe changes in prairie, savanna-woodland and
forested communities. There are three primary objectives for the
monitoring defined in this protocol: 1. Describe the species
composition, structure and diversity of prairie, savanna-woodland
and forested communities; 2. Determine temporal changes in the
species composition, structure and diversity of prairie,
savanna-woodland and forested communities; 3. Determine the
relationship between temporal and spatial changes and environmental
variables including specific management practices.
During surveys in 2006, the authors documented 13 invasive, exotic
plant species and the native Eastern red cedar on Pea Ridge
National Military Park. The survey focused on the relatively mature
forests at the park to the exclusion of old fields and successional
forests.
It is against a backdrop of vanishing or altered ecosystems,
declining bird populations and the unique role that National Park
Service lands can play in conserving threatened bird species that
the authors propose monitoring avian communities on National Park
Service lands within the HTLN. Long-term trends in the community
composition and abundance of breeding bird populations provide one
measure for assessing the ecological integrity and sustainability
of ecosystems. Long-term patterns in community composition and
species abundance in relation to changes in the structural
diversity of vegetation will improve our understanding of the
effects of various management actions. There are two primary
objectives for the monitoring described in this protocol: 1.
Identify significant temporal changes in composition and abundance
of bird communities in 11 parks within the HTLN during the breeding
season. 2. Improve our understanding of breeding bird - habitat
relationships and the effects of management actions such as
grazing, exotic plant removal and prescribed fire regimes on bird
populations, by correlating changes in bird community composition
and abundance with changes in habitat variables.
Prevention and early detection are the principal strategies for
successful invasive exotic plant management. During surveys in
2006, the authors documented 16 invasive, exotic plant species on
Tallgrass Prairie National Preserve. their findings and
recommendations are detailed.
Two broad objectives are addressed by this protocol: 1) Determine
the annual status and trends of invertebrate species diversity,
abundance and community metrics, and 2) Relate the invertebrate
community to overall water quality through quantification of
metrics related to species richness, abundance and diversity and
region specific multi-metric indices as indicators of water quality
and habitat condition
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