دورية أكاديمية
Associations of stream geomorphic conditions and prevalence of alternative reproductive tactics among sockeye salmon populations.
| العنوان: | Associations of stream geomorphic conditions and prevalence of alternative reproductive tactics among sockeye salmon populations. |
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| المؤلفون: | DeFilippo LB; School of Aquatic and Fishery Sciences, University of Washington, Seattle, WA, USA., Schindler DE; School of Aquatic and Fishery Sciences, University of Washington, Seattle, WA, USA., Carter JL; School of Aquatic and Fishery Sciences, University of Washington, Seattle, WA, USA., Walsworth TE; School of Aquatic and Fishery Sciences, University of Washington, Seattle, WA, USA., Cline TJ; School of Aquatic and Fishery Sciences, University of Washington, Seattle, WA, USA., Larson WA; School of Aquatic and Fishery Sciences, University of Washington, Seattle, WA, USA.; U. S. Geological Survey, Wisconsin Cooperative Fishery Research Unit, University of Wisconsin-Stevens Point, Stevens Point, WI, USA., Buehrens T; School of Aquatic and Fishery Sciences, University of Washington, Seattle, WA, USA.; Washington Department of Fish and Wildlife, Olympia, WA, USA. |
| المصدر: | Journal of evolutionary biology [J Evol Biol] 2018 Feb; Vol. 31 (2), pp. 239-253. Date of Electronic Publication: 2018 Jan 12. |
| نوع المنشور: | Journal Article; Research Support, Non-U.S. Gov't |
| اللغة: | English |
| بيانات الدورية: | Publisher: Oxford University Press Country of Publication: Switzerland NLM ID: 8809954 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1420-9101 (Electronic) Linking ISSN: 1010061X NLM ISO Abbreviation: J Evol Biol Subsets: MEDLINE |
| أسماء مطبوعة: | Publication: January 2024- : [Oxford] : Oxford University Press Original Publication: [Basel, Switzerland : Birkhäuser Verlag, c1988- |
| مواضيع طبية MeSH: | Ecosystem* , Reproduction* , Rivers* , Sexual Behavior, Animal*, Salmon/*physiology, Animals ; Female ; Male |
| مستخلص: | In many species, males may exhibit alternative life histories to circumvent the costs of intrasexual competition and female courtship. While the evolution and underlying genetic and physiological mechanisms behind alternative reproductive tactics are well studied, there has been less consideration of the ecological factors that regulate their prevalence. Here, we examine six decades of age composition records from thirty-six populations of sockeye salmon (Oncorhynchus nerka) to quantify associations between spawning habitat characteristics and the prevalence of precocious sneakers known as 'jacks'. Jack prevalence was independent of neutral genetic structure among stream populations, but varied among habitat types and as a function of continuous geomorphic characteristics. Jacks were more common in streams relative to beaches and rivers, and their prevalence was negatively associated with stream width, depth, elevation, slope and area, but positively related to bank cover. Behavioural observations showed that jacks made greater use of banks, wood and shallows than guard males, indicating that their reproductive success depends on the availability of such refuges. Our results emphasize the role of the physical habitat in shaping reproductive tactic frequencies among populations, likely through local adaptation in response to variable fitness expectations under different geomorphic conditions. (© 2017 European Society For Evolutionary Biology. Journal of Evolutionary Biology © 2017 European Society For Evolutionary Biology.) |
| فهرسة مساهمة: | Keywords: geomorphology; jack; reproductive tactic; salmon; sneaker |
| تواريخ الأحداث: | Date Created: 20171202 Date Completed: 20190312 Latest Revision: 20190312 |
| رمز التحديث: | 20221213 |
| DOI: | 10.1111/jeb.13217 |
| PMID: | 29194863 |
| قاعدة البيانات: | MEDLINE |
Full Text Finder | تدمد: | 1420-9101 |
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| DOI: | 10.1111/jeb.13217 |