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Hokkaido University Collection of Scholarly and Academic Papers >
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Socially induced reproductive synchrony in a salmonid: an approximate Bayesian computation approach
| Title: | Socially induced reproductive synchrony in a salmonid: an approximate Bayesian computation approach |
| Authors: | Koizumi, Itsuro Browse this author | | Shimatani, Ichiro K. Browse this author |
| Keywords: | breeding synchrony | | group spawning | | hierarchical Bayesian modeling | | individual-based modeling | | spawning aggregation | | synchronous spawning | | time-series count data |
| Issue Date: | 2016 |
| Publisher: | Oxford University Press |
| Journal Title: | Behavioral ecology |
| Volume: | 27 |
| Issue: | 5 |
| Start Page: | 1386 |
| End Page: | 1396 |
| Publisher DOI: | 10.1093/beheco/arw056 |
| Abstract: | Reproductive synchrony is a widespread phenomenon found in many taxa, including plants and corals. However, compared with synchrony caused by environmental cues, knowledge of socially induced reproductive synchrony is limited, partly due to the difficulty of experimentally manipulating and/or making detailed behavioral observations of populations in the wild. In this study, we developed a novel modeling framework combining an individual-based model, a hierarchical Bayesian model, and an approximate Bayesian computation (ABC) to elucidate socially induced reproductive synchrony. This method was applied to time-series redd (i.e., spawning nests) count data in 30 wild populations of stream-dwelling Dolly Varden charr. The model with reproductive synchrony explained all the redd count data, whereas the null model, which did not include the synchrony, failed to reproduce the observed data in several populations. In addition, our models suggest that Dolly Varden should be able to adjust spawning by up to a week following other females to produce synchrony. No significant correlation was observed between reproductive timing and environmental factors, suggesting that the major cue for the synchrony was social rather than environmental. The presence of reproductive synchrony within but not among local populations suggests that predator satiation is not the main driver of the synchrony; rather, other mechanisms must exist in the Dolly Varden, such as induced monogamy or polygamy, or avoidance of nest superimposition. This study has demonstrated the effectiveness of using individual-based and hierarchical modeling together with an ABC parameter estimation method in behavioral ecological studies. |
| Rights: | This is a pre-copyedited, author-produced version of an article accepted for publication in Behavioral Ecology following peer review. The version of record Behavioral Ecology, Volume 27, Issue 5, 1 January 2016, Pages 1386–1396 is available online at: https://doi.org/10.1093/beheco/arw056. |
| Type: | article (author version) |
| URI: | http://hdl.handle.net/2115/66985 |
| Appears in Collections: | 環境科学院・地球環境科学研究院 (Graduate School of Environmental Science / Faculty of Environmental Earth Science) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
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Submitter: 小泉 逸郎
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