دورية أكاديمية
Maternal behaviors influence survival of ungulate neonates under heavy predation risk.
| العنوان: | Maternal behaviors influence survival of ungulate neonates under heavy predation risk. |
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| المؤلفون: | Muthersbaugh MS; Department of Forestry and Environmental Conservation Clemson University Clemson South Carolina USA., Boone WW; Department of Forestry and Environmental Conservation Clemson University Clemson South Carolina USA., Saldo EA; Department of Forestry and Environmental Conservation Clemson University Clemson South Carolina USA., Jensen AJ; Department of Forestry and Environmental Conservation Clemson University Clemson South Carolina USA.; North Carolina Museum of Natural Sciences Raleigh North Carolina USA., Cantrell J; South Carolina Department of Natural Resources Columbia South Carolina USA., Ruth C; South Carolina Department of Natural Resources Columbia South Carolina USA., Kilgo JC; USDA Forest Service Southern Research Station New Ellenton South Carolina USA., Jachowski DS; Department of Forestry and Environmental Conservation Clemson University Clemson South Carolina USA. |
| المصدر: | Ecology and evolution [Ecol Evol] 2024 Aug 21; Vol. 14 (8), pp. e70151. Date of Electronic Publication: 2024 Aug 21 (Print Publication: 2024). |
| نوع المنشور: | Journal Article |
| اللغة: | English |
| بيانات الدورية: | Publisher: Blackwell Pub. Ltd Country of Publication: England NLM ID: 101566408 Publication Model: eCollection Cited Medium: Print ISSN: 2045-7758 (Print) Linking ISSN: 20457758 NLM ISO Abbreviation: Ecol Evol Subsets: PubMed not MEDLINE |
| أسماء مطبوعة: | Original Publication: [Oxford] : Blackwell Pub. Ltd. |
| مستخلص: | Predators impose top-down forces on prey populations, with the strength of those effects often varying over space and time and among demographic groups. In ungulates, predation risk is typically greatest for neonatal offspring, with some suggesting that predators can key in on adult activity to locate hidden neonates. However, few field studies to date have been able to directly assess the influence of maternal care on ungulate neonate survival. Using a population of white-tailed deer under heavy coyote predation pressure, we tested the maternal dispersion hypothesis, which suggests the dispersion of maternal activity temporally and spatially attenuates risk of predation for ungulate neonates during this vulnerable altricial phase. We compared support for this hypothesis with more commonly tested hypotheses regarding the influence of habitat conditions and intrinsic factors on neonatal survival. Fawn survival to 16 weeks was 27.7%, with coyotes accounting for 59% of fawn mortalities. In support of our maternal temporal diffusion hypothesis, we found that neonatal survival decreased as more maternal visits (proportionally) occurred at night. The only other significant ( p < .1) predictor of fawn survival was birth timing, with fawn survival decreasing as the season progressed. Given that fawn survival declined as the proportion of nighttime visits increased, and that wild pig presence and human disturbance can push doe and fawn activity toward nocturnal hours, additional research is needed to determine whether managing pig and human disturbance can decrease fawn mortality. More broadly, given the importance of recruitment in ungulate population dynamics, our finding opens a potentially important new line of inquiry on how maternal behaviors influence predation risk in large animal predator-prey ecology. Competing Interests: The authors declare no conflicts of interest. (© 2024 The Author(s). Ecology and Evolution published by John Wiley & Sons Ltd.) |
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| فهرسة مساهمة: | Keywords: deer; maternal behavior; maternal dispersion; neonate survival; predation risk; ungulate |
| تواريخ الأحداث: | Date Created: 20240822 Latest Revision: 20240823 |
| رمز التحديث: | 20240823 |
| مُعرف محوري في PubMed: | PMC11338655 |
| DOI: | 10.1002/ece3.70151 |
| PMID: | 39170052 |
| قاعدة البيانات: | MEDLINE |
Full Text Finder | تدمد: | 2045-7758 |
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| DOI: | 10.1002/ece3.70151 |