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Published (Version of record)CC BY V4.0, Open Access
Published (Version of record)CC BY V4.0, Open
Journal article
Environmental, social and reproductive factors influence the risk-reward trade-off in a group-living fish
Coral Reefs, Vol.41, pp.463-471
01/04/2022
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Abstract
Animals are faced with a fundamental risk-reward trade-off when making decisions about foraging in the presence of predation, yet little is known about how social, reproductive and environmental factors mediate this trade-off. In the marine environment, anemonefishes provide a model system for investigating the determinants of risk–reward trade-offs, because they live in size- and sex-structured groups within protective sea anemones tentacles, yet feed predominantly in the water column where they are at risk of predation. Furthermore, exposure to changing tides means the availability of planktonic food covaries with their risk of predation. Therefore, we examined how tide, sex and status, and the presence of eggs influenced the time that Amphiprion mccullochi spent at different distances from their anemone, a proxy for foraging effort and predation risk. We found that individuals significantly adjusted their time spent far and close to the anemone depending on the tide, status and the presence of eggs, and that these adjustments can be explained in light of threat sensitive behaviour. This study illustrates the relative importance of environmental and social factors on intraspecific variation in foraging and antipredator behaviour and bolsters our understanding of the decision’s individuals make to balance the costs and benefits of foraging over temporal and spatial scales.
Details
- Title
- Environmental, social and reproductive factors influence the risk-reward trade-off in a group-living fish
- Creators
- Marian Y. L Wong - University of WollongongLeigha R Aitken - Southern Cross UniversityAmanda L Beasley - Southern Cross UniversityStephen G Morris - NSW Department of Primary IndustriesAnna Scott - Southern Cross University
- Publication Details
- Coral Reefs, Vol.41, pp.463-471
- Publisher
- Springer
- Number of pages
- 9
- Grant note
- Southern Cross University Marine Ecology Research Grant Centre for Sustainable Ecosystems grant from the University of Wollongong
- Identifiers
- 991013014197902368
- Copyright
- © The Author(s) 2022 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License.
- Academic Unit
- National Marine Science Centre; Faculty of Science and Engineering; Science
- Language
- English
- Resource Type
- Journal article