Blood samples collected from American black bears () in eastern and western North Carolina, US, were analyzed for piroplasms. Piroplasmids were detected in 17% (23/132) of the animals surveyed. We detected a spp. previously identified in North American raccoons () and a maned wolf (); prevalence was 22% (14/64) and 13% (9/68) in the mountain and coastal black bear populations, respectively. The presence of the same species in black bears, raccoons, and a maned wolf suggests piroplasms may not be host specific.
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http://dx.doi.org/10.7589/2018-06-164 | DOI Listing |
Glob Chang Biol
January 2025
Biotechnical Faculty, Department of Biology, University of Ljubljana, Ljubljana, Slovenia.
Three-quarters of the planet's land surface has been altered by humans, with consequences for animal ecology, movements and related ecosystem functioning. Species often occupy wide geographical ranges with contrasting human disturbance and environmental conditions, yet, limited data availability across species' ranges has constrained our understanding of how human pressure and resource availability jointly shape intraspecific variation of animal space use. Leveraging a unique dataset of 758 annual GPS movement trajectories from 375 brown bears (Ursus arctos) across the species' range in Europe, we investigated the effects of human pressure (i.
View Article and Find Full Text PDFHibernating brown bears, due to a drastic reduction in metabolic rate, show only moderate muscle wasting. Here, we evaluate if ATPase activity of resting skeletal muscle myosin can contribute to this energy sparing. By analyzing single muscle fibers taken from the same bears, either during hibernation or in summer, we find that fibers from hibernating bears have a mild decline in force production and a significant reduction in ATPase activity.
View Article and Find Full Text PDFParasit Vectors
December 2024
Sichuan Key Laboratory of Conservation Biology for Endangered Wildlife, Chengdu Research Base of Giant Panda Breeding, Chengdu, 610000, Sichuan, China.
Background: Babesia is a tick-borne protozoan blood parasite that can cause hemolytic anemia, thrombocytopenia, lethargy and splenomegaly in giant pandas.
Methods: We evaluated the efficacy and safety profile of a therapeutic regimen combining atovaquone and zithromycin in the context of babesiosis in giant pandas that have been naturally infected. The examined pandas underwent clinical and laboratory analyses, including hematology, biochemistry and thyroid hormone profiles.
J Zoo Wildl Med
December 2024
Zoological Pathology Program, Department of Veterinary Clinical Medicine, College of Veterinary Medicine, University of Illinois, Brookfield, IL 60513, USA.
Red pandas () are endangered with extinction due to deforestation and habitat fragmentation. Reported causes of unexpected death in managed red pandas include kidney, liver, gastrointestinal, and cardiac disease. A previously undetailed syndrome, red panda peracute mortality syndrome, may be emerging, as red pandas have died unexpectedly, with no clear cause of death identified at necropsy.
View Article and Find Full Text PDFPLoS One
December 2024
Conservation Science Wildlife Health, San Diego Zoo Wildlife Alliance, Escondido, California, United States of America.
Andean bears (Tremarctos ornatus) forage extensively on bromeliads (Puya spp.) across their range, although their selectivity for bromeliads is less understood. We report on foraging activity by Andean bears on two species of bromeliad, Puya leptostachya and Puya membranacea, in high elevation puna grasslands (3499-3806 m.
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