Chapter 3 - Natural Resources - Marine Corps Base Camp Pendleton
Chapter 3 - Natural Resources - Marine Corps Base Camp Pendleton
Chapter 3 - Natural Resources - Marine Corps Base Camp Pendleton
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Integrated <strong>Natural</strong> <strong>Resources</strong> Management Plan [March 2012 - Update]<br />
MCBCP Status<br />
The arroyo toad receives programmatic protection from training and other <strong>Base</strong> activities<br />
within the riparian component of its habitat through programmatic instructions provided to<br />
users and residents of the <strong>Base</strong> as part of the Riparian Ecosystem Conservation Plan<br />
(Appendix C) and <strong>Base</strong> Order P3500.1M (Range and Training Regulations). The <strong>Base</strong> is<br />
currently in consultation with USFWS regarding Upland habitat basewide including habitat<br />
occupied by the arroyo toad. Management details, survey information, etc., for the arroyo<br />
toad are located in Appendix F, Section F.1.<br />
DISTRIBUTION<br />
Global<br />
Endemic to southern California, arroyo toads were found historically in coastal and some<br />
desert drainages from Monterey County, California south to San Quintin, Baja California,<br />
Mexico (Sweet 1993). Arroyo toad populations in California persist in headwater areas of<br />
streams in Santa Barbara, Ventura, Los Angeles, Riverside, and San Diego counties. The<br />
majority of the remaining populations in Santa Barbara and Ventura counties are in Los<br />
Padres National Forest (five viable populations); Sespe Creek in Ventura County has the<br />
largest known population; and other populations occur in the Sisquoc, Santa Ynez, and<br />
upper and lower Piru drainages (USFWS 1994e).<br />
Regional<br />
Arroyo toads occur in San Diego<br />
County along the Santa Margarita<br />
River, San Onofre Creek, San<br />
Mateo Creek, Sweetwater River,<br />
Vallecitos Creek, San Luis Rey<br />
River, San Dieguito River/Santa<br />
Ysabel Creek, Tijuana<br />
River/Cottonwood Creek, San<br />
Diego River, Otay River, and San<br />
Felipe Creek drainage basins.<br />
Arroyo toads are present in<br />
Orange County along the Santa<br />
Ana River, San Juan Creek, and<br />
San Mateo Creek drainage basins.<br />
Arroyo toads are found in<br />
Riverside County along the<br />
Whitewater River, Santa Ana<br />
River, San Juan Creek, San<br />
Mateo Creek, and Santa<br />
Margarita River drainage basins.<br />
The species is also found in San<br />
Bernardino County in the Mojave<br />
River drainage basin, and in<br />
Imperial County in the Pinto Wash<br />
drainage basin (USFWS 1999a).<br />
FIGURE 3-31.<br />
ARROYO TOAD LOCATIONS<br />
<strong>Chapter</strong> 3 – <strong>Natural</strong> <strong>Resources</strong> 3-65