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QUANTIFICATION OF HEMATOZOA IN BLOOD SMEARS
The number of erythrocytes that must be counted to determine parasite intensities could be considerably reduced from the 10,000 or 20,000 estimated for most studies, and still provide an accurate determination of the number of parasites/n ery throatcytes in datasets collected from hosts with moderate to high levels of parasitemia.
Impact of a sarcoptic mange epizootic on a coyote population
Keys, species and host list, and bibliography for nasal mites of North American birds (Acarina-Rhinonyssinae, Turbinoptinae, Speleognathinae, and Cytoditidae) /
- D. B. Pence
Helminth community structure and pattern in sympatric populations of double-crested and neotropic cormorants
The epizootiology and pathology of sarcoptic mange in coyotes, Canis latrans, from south Texas.
- D. B. Pence, L. A. Windberg, B. Pence, R. Sprowls
- Environmental ScienceThe Journal of parasitology
- 1 December 1983
Significant differences in prevalence of mange across habitat variables of host age and sex, and across seasons were related to the juvenile/adult ratio in the coyote population at any particular time because the infection progressed more rapidly in juveniles.
Ecology of helminth parasitism in the bobcat from West Texas.
The present study was initiated in order to better understand the nature, prevalence, and intensity of helminth parasitism and to elucidate certain ecological relationships of parasitism including concentration of dominance in bobcat faunas of bobcats in different regions.
Helminth and arthropod parasites of the brown pelican, Pelecanus occidentalis , in Puerto Rico, with a compilation of all metazoan parasites reported from this host in the Western Hemisphere
- W. Dyer, Ernest H. Williams Jr, D. B. Pence
- BiologyAvian pathology : journal of the W.V.P.A
- 1 October 2002
Seven species of helminths and six species of arthropods are reported from 23 of 40 brown pelicans collected from various localities in Puerto Rico, and the presence of R. ondatrae in the brown pelican is a new species host record, and P. pelecani, P. punctatissimus and N. apunctatus are new subspecies host records.
Ecological Analyses of Helminth Populations of Wild Canids from the Gulf Coastal Prairies of Texas and Louisiana
The genus Oxyspirura (Nematoda: Thelaziidae) from birds in Louisiana.
- D. B. Pence
The eyeworms of the genus Oxyspirura of birds in southern Louisiana were studied and the occurrence of oxy- spiruricl infections in wild bird populations and to determine the species occurring inSouthern Louisiana were determined.
Possible Vector Dissemination by Swift Foxes following a Plague Epizootic in Black-tailed Prairie Dogs in Northwestern Texas
- B. McGee, M. Butler, Kerry L. Nicholson
- Environmental ScienceJournal of wildlife diseases
- 1 April 2006
It is believed swift foxes play only a minor role in plague epidemiology, considering that they harbored just a few uninfected prairie dog fleas (P. simulans and O. hirsuta), and both of these canids could act as transport hosts (at least temporarily) of prairieDog fleas following the loss of their normal hosts during a plague die-off.