Nonconsumptive predator effects modify crayfish‐induced bioturbation as mediated by limb loss: Field and mesocosm experiments
Abstract We addressed the implications of limb loss and regeneration for multispecies interactions and their impacts on ecosystem engineering in freshwater stream environments. We included regenerative and nonregenerative crayfish as well as fish predators in a 2 × 2 factorial design to assess the e...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Wiley
2020-03-01
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| Series: | Ecology and Evolution |
| Subjects: | |
| Online Access: | https://doi.org/10.1002/ece3.5444 |
| _version_ | 1818640158858149888 |
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| author | Luc A. Dunoyer Dakota Coomes Philip H. Crowley |
| author_facet | Luc A. Dunoyer Dakota Coomes Philip H. Crowley |
| author_sort | Luc A. Dunoyer |
| collection | DOAJ |
| description | Abstract We addressed the implications of limb loss and regeneration for multispecies interactions and their impacts on ecosystem engineering in freshwater stream environments. We included regenerative and nonregenerative crayfish as well as fish predators in a 2 × 2 factorial design to assess the effects on water turbidity of interactions between crayfish ecosystem engineers differing in regenerative status and their fish predators. We demonstrated that crayfish limb loss and predation risks lead to more turbidity in field and mesocosm conditions. Moreover, ongoing regeneration of crayfish increased turbidity, while fish presence seemed to hinder crayfish turbidity‐inducing behaviors (such as tail‐flipping and burrowing) in the mesocosm experiment. We confirmed that greater numbers of crayfish produce a greater amount of turbidity in situ in streams. Although mechanical burrowing crayfish capacities may depend on crayfish burrowing classification (primary, secondary, or tertiary), our work emphasizes the implication for turbidity levels of crayfish autotomy in freshwater streams. |
| first_indexed | 2024-12-16T23:06:50Z |
| format | Article |
| id | doaj.art-1ac41e4517844fb799cda15b2629a3fb |
| institution | Directory Open Access Journal |
| issn | 2045-7758 |
| language | English |
| last_indexed | 2024-12-16T23:06:50Z |
| publishDate | 2020-03-01 |
| publisher | Wiley |
| record_format | Article |
| series | Ecology and Evolution |
| spelling | doaj.art-1ac41e4517844fb799cda15b2629a3fb2022-12-21T22:12:32ZengWileyEcology and Evolution2045-77582020-03-011062739274810.1002/ece3.5444Nonconsumptive predator effects modify crayfish‐induced bioturbation as mediated by limb loss: Field and mesocosm experimentsLuc A. Dunoyer0Dakota Coomes1Philip H. Crowley2Department of Biology University of Kentucky Lexington KY USADepartment of Biology University of Kentucky Lexington KY USADepartment of Biology University of Kentucky Lexington KY USAAbstract We addressed the implications of limb loss and regeneration for multispecies interactions and their impacts on ecosystem engineering in freshwater stream environments. We included regenerative and nonregenerative crayfish as well as fish predators in a 2 × 2 factorial design to assess the effects on water turbidity of interactions between crayfish ecosystem engineers differing in regenerative status and their fish predators. We demonstrated that crayfish limb loss and predation risks lead to more turbidity in field and mesocosm conditions. Moreover, ongoing regeneration of crayfish increased turbidity, while fish presence seemed to hinder crayfish turbidity‐inducing behaviors (such as tail‐flipping and burrowing) in the mesocosm experiment. We confirmed that greater numbers of crayfish produce a greater amount of turbidity in situ in streams. Although mechanical burrowing crayfish capacities may depend on crayfish burrowing classification (primary, secondary, or tertiary), our work emphasizes the implication for turbidity levels of crayfish autotomy in freshwater streams.https://doi.org/10.1002/ece3.5444autotomyecosystem engineeringenclosure‐exclosure experimentsFaxonius rusticusturbidity |
| spellingShingle | Luc A. Dunoyer Dakota Coomes Philip H. Crowley Nonconsumptive predator effects modify crayfish‐induced bioturbation as mediated by limb loss: Field and mesocosm experiments Ecology and Evolution autotomy ecosystem engineering enclosure‐exclosure experiments Faxonius rusticus turbidity |
| title | Nonconsumptive predator effects modify crayfish‐induced bioturbation as mediated by limb loss: Field and mesocosm experiments |
| title_full | Nonconsumptive predator effects modify crayfish‐induced bioturbation as mediated by limb loss: Field and mesocosm experiments |
| title_fullStr | Nonconsumptive predator effects modify crayfish‐induced bioturbation as mediated by limb loss: Field and mesocosm experiments |
| title_full_unstemmed | Nonconsumptive predator effects modify crayfish‐induced bioturbation as mediated by limb loss: Field and mesocosm experiments |
| title_short | Nonconsumptive predator effects modify crayfish‐induced bioturbation as mediated by limb loss: Field and mesocosm experiments |
| title_sort | nonconsumptive predator effects modify crayfish induced bioturbation as mediated by limb loss field and mesocosm experiments |
| topic | autotomy ecosystem engineering enclosure‐exclosure experiments Faxonius rusticus turbidity |
| url | https://doi.org/10.1002/ece3.5444 |
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