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Effects of desert wildfires on desert tortoise (Gopherus agassizii) and other small vertebrates

Southwestern Naturalist

By:
, , , , and
DOI: 10.1894/0038-4909(2003)048<0103:EODWOD>2.0.CO;2

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Abstract

We report the results of standardized surveys to determine the effects of wildfires on desert tortoises (Gopherus agassizii) and their habitats in the northeastern Mojave Desert and northeastern Sonoran Desert. Portions of 6 burned areas (118 to 1,750 ha) were examined for signs of mortality of vertebrates. Direct effects of fire in desert habitats included animal mortality and loss of vegetation cover. A range of 0 to 7 tortoises was encountered during surveys, and live tortoises were found on all transects. In addition to desert tortoises, only small (<1 kg) mammals and reptiles (11 taxa) were found dead on the study areas. We hypothesize that indirect effects of fire on desert habitats might result in changes in the composition of diets and loss of vegetation cover, resulting in an increase in predation and loss of protection from temperature extremes. These changes in habitat also might cause changes in vertebrate communities in burned areas.

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Effects of desert wildfires on desert tortoise (Gopherus agassizii) and other small vertebrates
Series title:
Southwestern Naturalist
DOI:
10.1894/0038-4909(2003)048<0103:EODWOD>2.0.CO;2
Volume
48
Issue:
1
Year Published:
2003
Language:
English
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
Larger Work Title:
Southwestern Naturalist
First page:
103
Last page:
111