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Download this report as a 94-page PDF - USGS

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Executive Summary<br />

This <strong>report</strong> summarizes results of an inventory of<br />

plants, birds, and mammals of Fort Bowie National<br />

Historic Site (NHS) in southe<strong>as</strong>tern Arizona.<br />

Surveys at the park were part of a larger effort to<br />

inventory v<strong>as</strong>cular plants and vertebrates in eight<br />

National Park Service (NPS) units in Arizona and<br />

New Mexico. Our inventory efforts build on p<strong>as</strong>t<br />

research for the park; included in <strong>this</strong> <strong>report</strong> is the<br />

most comprehensive synthesis of species lists from<br />

p<strong>as</strong>t studies of plants and vertebrates. Though we<br />

did not survey specifically for them, we also<br />

include a species lists of amphibians and reptiles<br />

that have been observed or documented at the park.<br />

For a park of its size (405 ha), Fort Bowie<br />

NHS h<strong>as</strong> extraordinary species richness, especially<br />

for plants (638 species) and mammals (57 species).<br />

This diversity results from its geographic location<br />

at the junction of three biogeographical provinces,<br />

its diverse geology, and the presence of year-round<br />

water from an active spring.<br />

xi<br />

We found 45 new plant and vertebrate<br />

species for the park (Table 1) including:<br />

• Plants: two species representing new<br />

families and nine species representing new<br />

genera, including one new genus<br />

(Euphorbia) represented by three species;<br />

• Birds: zone-tailed hawk and common<br />

ground dove;<br />

• Mammals: domestic dog and hooded<br />

skunk.<br />

B<strong>as</strong>ed on a review of p<strong>as</strong>t studies and our<br />

own work, we consider the inventories of plants<br />

and vertebrates to be 90% complete. With b<strong>as</strong>eline<br />

inventories at Fort Bowie NHS among the most<br />

complete of the 11 parks in the Sonoran Desert<br />

Network, park staff are now in an excellent<br />

position to monitor changes in these resources.<br />

Table 1. Summary results of plant and vertebrate inventories at Fort Bowie NHS, 2002 to 2004.<br />

Number of<br />

UA Effort<br />

Number of Number of new species Total number of<br />

Taxonomic group species recorded non-native species added to park lista species on park listb<br />

Plants 193 13 33 638<br />

Amphibians and Reptiles 8 0 0 40<br />

Birds 109 0 6 189<br />

Mammals 14 1 2 59<br />

Totals 324 14 41 926<br />

a<br />

Species that had not been observed or documented by previous studies.<br />

b<br />

From all sources (see Appendices A-D for complete lists).

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