دورية أكاديمية
أعرض في EDS

Examination of the interaction between age-specific predation and chronic disease in the Greater Yellowstone Ecosystem.

التفاصيل البيبلوغرافية
العنوان: Examination of the interaction between age-specific predation and chronic disease in the Greater Yellowstone Ecosystem.
المؤلفون: Brandell EE; Center for Infectious Disease Dynamics and Department of Biology, Huck Institutes of the Life Sciences, Pennsylvania State University, University Park, PA, USA.; Wisconsin Cooperative Wildlife Research Unit, Department of Forest and Wildlife Ecology, University of Wisconsin-Madison, Madison, WI, USA., Cross PC; U.S. Geological Survey, Northern Rocky Mountain Science Center, Bozeman, MT, USA., Smith DW; Yellowstone Center for Resources, Yellowstone National Park, Wyoming, WY, USA., Rogers W; Department of Ecology, Montana State University, Bozeman, MT, USA., Galloway NL; Biological Resources Division, National Park Service, Fort Collins, CO, USA., MacNulty DR; Department of Wildland Resources, Utah State University, Logan, UT, USA., Stahler DR; Yellowstone Center for Resources, Yellowstone National Park, Wyoming, WY, USA., Treanor J; Yellowstone Center for Resources, Yellowstone National Park, Wyoming, WY, USA., Hudson PJ; Center for Infectious Disease Dynamics and Department of Biology, Huck Institutes of the Life Sciences, Pennsylvania State University, University Park, PA, USA.
المصدر: The Journal of animal ecology [J Anim Ecol] 2022 Jul; Vol. 91 (7), pp. 1373-1384. Date of Electronic Publication: 2022 Jan 27.
نوع المنشور: Journal Article; Research Support, U.S. Gov't, Non-P.H.S.
اللغة: English
بيانات الدورية: Publisher: Blackwell Country of Publication: England NLM ID: 0376574 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1365-2656 (Electronic) Linking ISSN: 00218790 NLM ISO Abbreviation: J Anim Ecol Subsets: MEDLINE
أسماء مطبوعة: Publication: Oxford : Blackwell
Original Publication: Oxford, British Ecological Society.
مواضيع طبية MeSH: Deer* , Wolves*, Age Factors ; Animals ; Chronic Disease ; Ecosystem ; Food Chain ; Population Dynamics ; Predatory Behavior
مستخلص: Predators may create healthier prey populations by selectively removing diseased individuals. Predators typically prefer some ages of prey over others, which may, or may not, align with those prey ages that are most likely to be diseased. The interaction of age-specific infection and predation has not been previously explored and likely has sizable effects on disease dynamics. We hypothesize that predator cleansing effects will be greater when the disease and predation occur in the same prey age groups. We examine the predator cleansing effect using a model where both vulnerability to predators and pathogen prevalence vary with age. We tailor this model to chronic wasting disease (CWD) in mule deer and elk populations in the Greater Yellowstone Ecosystem, with empirical data from Yellowstone grey wolves and cougars. Model results suggest that under moderate, yet realistic, predation pressure from cougars and wolves independently, predators may decrease CWD outbreak size substantially and delay the accumulation of symptomatic deer and elk. The magnitude of this effect is driven by the ability of predators to selectively remove late-stage CWD infections that are likely the most responsible for transmission, but this may not be the age class they typically select. Thus, predators that select for infected young adults over uninfected juveniles have a stronger cleansing effect, and these effects are strengthened when transmission rates increase with increasing prey morbidity. There are also trade-offs from a management perspective-that is, increasing predator kill rates can result in opposing forces on prey abundance and CWD prevalence. Our modelling exploration shows that predators have the potential to reduce prevalence in prey populations when prey age and disease severity are considered, yet the strength of this effect is influenced by predators' selection for demography or body condition. Current CWD management focuses on increasing cervid hunting as the primary management tool, and our results suggest predators may also be a useful tool under certain conditions, but not necessarily without additional impacts on host abundance and demography. Protected areas with predator populations will play a large role in informing the debate over predator impacts on disease.
(© 2022 British Ecological Society.)
التعليقات: Comment in: J Anim Ecol. 2022 Jul;91(7):1330-1333. (PMID: 35789481)
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معلومات مُعتمدة: LTREB DEB-1245373 National Science Foundation; 140G0320P0145 U.S. Geological Survey; G17AC00427 U.S. Geological Survey; DEB-1245373 NSF LTREB; Verne Willaman
فهرسة مساهمة: Keywords: age structure; demography; healthy herds; infectious disease; matrix model; predator-prey; prion; simulation
تواريخ الأحداث: Date Created: 20220107 Date Completed: 20220707 Latest Revision: 20230213
رمز التحديث: 20231215
مُعرف محوري في PubMed: PMC9912199
DOI: 10.1111/1365-2656.13661
PMID: 34994978
قاعدة البيانات: MEDLINE
الوصف
تدمد:1365-2656
DOI:10.1111/1365-2656.13661