The microparasite component communities of 2 species of shrews, Notiosorex crawfordi and Sorex ornatus, were investigated for the first time in 2 isolated and 3 continuous landscapes in southern California. With microscopical examination, a total of 6 parasite species was found in N. crawfordi and 8 species in S. ornatus. The highest number (5) of parasite species was detected in the lungs. The corrected estimate of parasite species richness did not significantly correlate with the host abundance in either shrew species. Altitude, and also latitude in N. crawfordi, appeared to be significantly positively associated with the parasite species richness, but this could be due to a false association because of the rare occurrence of some of the parasites or the small altitude range (or both). No other landscape variable analyzed (location, size of the study site, disturbance) was significantly associated with the parasite species richness of the shrews. The parasite assemblages of the 2 shrew species were similar despite the fact that N. crawfordi has a lower metabolic rate than S. ornatus.
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December 2003
ECOLOGY-EPIDEMIOLOGY|
December 01 2003
MICROPARASITE ASSEMBLAGES OF CONSPECIFIC SHREW POPULATIONS IN SOUTHERN CALIFORNIA
Juha Laakkonen;
Juha Laakkonen
Section of Ecology, Behavior and Evolution, Division of Biology, University of California, San Diego, 9500 Gilman Drive, La Jolla, California 92093-0116. juha.laakkonen@metla.fi
* Present address: Finnish Forest Research Institute, P.O. Box 18, FIN-01301 Vantaa, Finland
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Robert N. Fisher;
Robert N. Fisher
Section of Ecology, Behavior and Evolution, Division of Biology, University of California, San Diego, 9500 Gilman Drive, La Jolla, California 92093-0116. juha.laakkonen@metla.fi
† U.S. Geological Survey, 5745 Kearny Villa Drive, Suite M, San Diego, California 92123
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Ted J. Case
Ted J. Case
Section of Ecology, Behavior and Evolution, Division of Biology, University of California, San Diego, 9500 Gilman Drive, La Jolla, California 92093-0116. juha.laakkonen@metla.fi
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J Parasitol (2003) 89 (6): 1153–1158.
Citation
Juha Laakkonen, Robert N. Fisher, Ted J. Case; MICROPARASITE ASSEMBLAGES OF CONSPECIFIC SHREW POPULATIONS IN SOUTHERN CALIFORNIA. J Parasitol 1 December 2003; 89 (6): 1153–1158. doi: https://doi.org/10.1645/GE-3180
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