Assessing respiratory pathogen communities in bighorn sheep populations: Sampling realities, challenges, and improvements. [PDF]
PLoS ONE, 2017 Respiratory disease has been a persistent problem for the recovery of bighorn sheep (Ovis canadensis), but has uncertain etiology. The disease has been attributed to several bacterial pathogens including Mycoplasma ovipneumoniae and Pasteurellaceae ...
Carson J Butler +11 more
doaj +2 more sources
How the geometry and mechanics of bighorn sheep horns mitigate the effects of impact and reduce the head injury criterion [PDF]
Bioinspiration & Biomimetics, 2023 Male bighorn sheep (Ovis canadensis) participate in seasonal ramming bouts that can last for hours, yet they do not appear to suffer significant brain injury.
Benjamin Wheatley +4 more
openalex +2 more sources
Detection of bacterial-reactive natural IgM antibodies in desert bighorn sheep populations. [PDF]
PLoS ONE, 2017 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.
Brian S Dugovich +8 more
doaj +2 more sources
The genetic legacy of 50 years of desert bighorn sheep translocations [PDF]
Evolutionary Applications, 2019 Conservation biologists have increasingly used translocations to mitigate population declines and restore locally extirpated populations. Genetic data can guide the selection of source populations for translocations and help evaluate restoration success.
Joshua P. Jahner +6 more
doaj +2 more sources
Waterhole detection using a vegetation index in desert bighorn sheep (Ovis canadensis cremnobates) habitat. [PDF]
PLoS ONE, 2019 In arid ecosystems, desert bighorn sheep are dependent on natural waterholes, particularly in summer when forage is scarce and environmental temperatures are high.
Jonathan Gabriel Escobar-Flores +6 more
doaj +2 more sources
Different proxies, different stories? Imperfect correlations and different determinants of fitness in bighorn sheep. [PDF]
Ecol Evol, 2022 Measuring individual fitness empirically is required to assess selective pressures and predicts evolutionary changes in nature. There is, however, little consensus on how fitness should be empirically estimated.
Van de Walle J +3 more
europepmc +2 more sources
Using transcriptomics to predict and visualize disease status in bighorn sheep (Ovis canadensis). [PDF]
Conserv Physiol, 2022 Increasing risk of pathogen spillover coupled with overall declines in wildlife population abundance in the Anthropocene make infectious disease a relevant concern for species conservation worldwide.
Bowen L +5 more
europepmc +2 more sources
Breeding migrations by bighorn sheep males are driven by mating opportunities. [PDF]
Ecol Evol, 2022 In some species where male mating success largely depends on intrasexual competition, males can adopt migratory or resident strategies to seek breeding opportunities.
Lassis R, Festa-Bianchet M, Pelletier F.
europepmc +2 more sources
Bighorn sheep show similar in-host responses to the same pathogen strain in two contrasting environments. [PDF]
Ecol Evol, 2022 Ecological context—the biotic and abiotic environment, along with its influence on population mixing dynamics and individual susceptibility—is thought to have major bearing on epidemic outcomes.
Manlove KR +12 more
europepmc +2 more sources
Natural history of a bighorn sheep pneumonia epizootic: Source of infection, course of disease, and pathogen clearance. [PDF]
Ecol Evol, 2021 A respiratory disease epizootic at the National Bison Range (NBR) in Montana in 2016–2017 caused an 85% decline in the bighorn sheep population, documented by observations of its unmarked but individually identifiable members, the subjects of an ongoing ...
Besser TE +6 more
europepmc +2 more sources