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).