منابع مشابه
Chlorinated hydrocarbon residues in perianal fat of desert bighorn sheep.
Use of chlorinated hydrocarbon pesticides for more than 30 years and polychlorinated biphenyls (PCB) for more than 40 years has resulted in the accumulation of these compounds in various ecosystems. Their accumulation in different ecosystems both near and well removed from their source of application is enhanced principally by their persistence and subsequent magnification between trophic level...
متن کاملLocal Extinction and Unintentional Rewilding of Bighorn Sheep (Ovis canadensis) on a Desert Island
Bighorn sheep (Ovis canadensis) were not known to live on Tiburón Island, the largest island in the Gulf of California and Mexico, prior to the surprisingly successful introduction of 20 individuals as a conservation measure in 1975. Today, a stable island population of ∼500 sheep supports limited big game hunting and restocking of depleted areas on the Mexican mainland. We discovered fossil du...
متن کاملCause Specific Mortality of Desert Bighorn Sheep Lambs in the Fra Cristobal Mountains, New Mexico, Usa
Bighorn sheep (Ovis canadensis) herds have suffered recent declines across their previous range, and desert bighorn sheep (O. c. mexicana) are listed as an endangered species in New Mexico. One factor affecting growth rates of these populations is low and variable lamb recruitment. Capturing and radio-collaring lambs can provide opportunities for collecting valuable information on factors poten...
متن کاملDetection of bacterial-reactive natural IgM antibodies in desert bighorn sheep populations
Ecoimmunology is a burgeoning field of ecology which studies immune responses in wildlife by utilizing general immune assays such as the detection of natural antibody. Unlike adaptive antibodies, natural antibodies are important in innate immune responses and often recognized conserved epitopes present in pathogens. Here, we describe a procedure for measuring natural antibodies reactive to bact...
متن کاملSimulating the spread of selection-driven genotypes using landscape resistance models for desert bighorn sheep
Landscape genetic studies based on neutral genetic markers have contributed to our understanding of the influence of landscape composition and configuration on gene flow and genetic variation. However, the potential for species to adapt to changing landscapes will depend on how natural selection influences adaptive genetic variation. We demonstrate how landscape resistance models can be combine...
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ژورنال
عنوان ژورنال: Journal of Veterinary Diagnostic Investigation
سال: 1992
ISSN: 1040-6387,1943-4936
DOI: 10.1177/104063879200400430