Results 61 to 70 of about 208,323 (200)

Fatal interactions: pneumonia in bighorn lambs following experimental exposure to carriers of Mycoplasma ovipneumoniae

Journal of Clinical Microbiology
We hypothesized that bighorn sheep ewes with chronic nasal Mycoplasma ovipneumoniae carriage are the source of infection that results in fatal lamb pneumonia. We tested this hypothesis in captive bighorn ewes at two study facilities over a 5-year period,
Logan K. Weyand, Brandi L. Felts, E. Frances Cassirer, Jonathan A. Jenks, Daniel P. Walsh, Thomas E. Besser   +5 more
doaj   +1 more source

Landscape conservation forecasting to evaluate ecological condition and wildlife habitat suitability in eastern Nevada U.S.A.

Restoration Ecology, Volume 34, Issue 7, September 2026.
Abstract Introduction Cooperation among managers of protected areas and federal multiple use lands with private inholdings to increase restoration success and economies of scale creates ecological and regulatory complexity best studied with state‐and‐transition simulation models (STSM).
Louis Provencher, Kevin J. Badik, Sarah Byer, Laurel Saito, Margaret Horner, Bryan Hamilton, Michael Clifford, Devin McHugh   +7 more
wiley   +1 more source

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, Melanie J Peel, Amy L Palmer, Ryszard A Zielke, Aleksandra E Sikora, Brianna R Beechler, Anna E Jolles, Clinton W Epps, Brian P Dolan   +8 more
doaj   +1 more source

Spatial metrics in fire ecology: seeking consistency amidst complexity

Biological Reviews, Volume 101, Issue 4, Page 1641-1661, August 2026.
ABSTRACT Technological advances, including remote sensing, have led to a proliferation of metrics used in ecological studies to examine spatial patterns of fire regimes and their ecological effects. Researchers can use many different metrics to analyse spatial variation in both fire events and resulting fire regimes, including fire size, shape ...
Alexander R. Carey, Geoffrey J. Cary, Teigan Cremona, Hugh F. Davies, Brett P. Murphy, Sam C. Banks   +5 more
wiley   +1 more source

Individualised niches: an integrative conceptual framework across behaviour, ecology, and evolution

Biological Reviews, Volume 101, Issue 4, Page 1793-1804, August 2026.
ABSTRACT Individuals differ. While seemingly trivial, this insight has nevertheless led to paradigm shifts, as three key fields of organismal biology have seen marked changes in key concepts over the past few decades. In animal behaviour, it has become increasingly recognised that behavioural differences among individuals can be stable over time and ...
Oliver Krüger, Jaime Anaya‐Rojas, Mitja Back, Barbara Caspers, Nayden Chakarov, Melanie Dammhahn, Alkistis Elliott‐Graves, Claudia Fricke, Jürgen Gadau, Joseph I. Hoffman, Marie I. Kaiser, Sylvia Kaiser, Peter Korsten, Ulrich Krohs, Joachim Kurtz, Roland Langrock, Caroline Müller, Robert Peuß, Klaus Reinhold, Helene Richter, Norbert Sachser, Holger Schielzeth, Tim Schmoll, Ralf Stanewsky, Tamas Szekely, Franz J. Weissing, Meike Wittmann, Shuqing Xu   +27 more
wiley   +1 more source

Social Group Membership With Residents Mediates Reinforcement Outcomes for a Translocated Bird

Ecology and Evolution, Volume 16, Issue 8, August 2026.
We investigated social interactions among release cohorts of reintroduced bush stone‐curlews. Newly released birds that had group membership with previously released residents had better outcomes: greater release site fidelity and faster roost establishment.
Shoshana Rapley, Maldwyn J. Evans, Heather M. McGinness, Iain J. Gordon, Robert Heinsohn, Adrian D. Manning   +5 more
wiley   +1 more source

Average kinship within bighorn sheep populations is associated with connectivity, augmentation, and bottlenecks

Ecosphere, 2022
Understanding the influence of population attributes on genetic diversity is important to advancement of biological conservation. Because bighorn sheep (Ovis canadensis) populations vary in size and management history, the species provides a unique ...
Elizabeth Flesch, Tabitha Graves, Jennifer Thomson, Kelly Proffitt, Robert Garrott   +4 more
doaj   +1 more source

Seeing Is Be-Leaving: Perception Informs Migratory Decisions in Sierra Nevada Bighorn Sheep (Ovis canadensis sierrae)

Frontiers in Ecology and Evolution, 2022
Seasonal migration is a behavioral response to predictable variation in environmental resources, risks, and conditions. In behaviorally plastic migrants, migration is a conditional strategy that depends, in part, on an individual’s informational state ...
Danielle J. Berger, David W. German, Christian John, Ronan Hart, Thomas R. Stephenson, Tal Avgar   +5 more
doaj   +1 more source

Twenty‐Year Progress in Landscape Genetics of Tetrapods

Ecology and Evolution, Volume 16, Issue 8, August 2026.
Geographic distribution of tetrapod landscape genetics between 2003 and 2025. ABSTRACT Landscape genetics, an interdisciplinary field integrating population genetics, landscape ecology, and spatial analytical techniques, has progressed significantly over two decades, yet systematic reviews of its application to tetrapods remain limited. Here, we review
Tongtong Gu, Xing Jia, Yuxin He, Zixin Lin   +3 more
wiley   +1 more source

Evaluating the transmission dynamics and host competency of aoudad (Ammotragus lervia) experimentally infected with Mycoplasma ovipneumoniae and leukotoxigenic Pasteurellaceae.

PLoS ONE
Feral populations of aoudad (Ammotragus lervia) occur in Texas bighorn sheep (Ovis canadensis) habitat and pose several conceptual ecological threats to bighorn sheep re-establishment efforts.
Logan F Thomas, Dallas Clontz, Chase M Nunez, Robert O Dittmar, Froylán Hernandez, Raquel R Rech, Walter E Cook   +6 more
doaj   +1 more source