Predator-induced changes of male and female mating preferences: innate and learned components
While many mating preferences have a genetic basis, the question remains as to whether and how learning/experience can modify individual mate choice decisions. We used wild-caught (predator-experienced) and [F.sub.1] laboratory-reared (predator-naive) invasive Western mosquitofish Gambusia affinis f...
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Veröffentlicht in: | Current zoology 2019-06, Vol.65 (3), p.305 |
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creator | Plath, Martin Liu, Kai Umutoni, Diane Gomes-Silva, Guilherme Wei, Jie-Fei Cyubahiro, Eric Chen, Bo-Jian Sommer-Trembo, Carolin |
description | While many mating preferences have a genetic basis, the question remains as to whether and how learning/experience can modify individual mate choice decisions. We used wild-caught (predator-experienced) and [F.sub.1] laboratory-reared (predator-naive) invasive Western mosquitofish Gambusia affinis from China to test whether mating preferences (assessed in a first mate choice test) would change under immediate predation threat. The same individuals were tested in a second mate choice test during which 1 of 3 types of animated predators was presented: 1) a co-occurring predator, 2) a co-evolved but not currently co-occurring predator, and 3) a non-piscivorous species as control. We compared preference scores derived from both mate choice tests to separate innate from experiential effects of predation. We also asked whether predator-induced changes in mating preferences would differ between sexes or depend on the choosing individual's personality type and/or body size. Wild-caught fish altered their mate choice decisions most when exposed to the co-occurring predator whereas laboratory-reared individuals responded most to the co-evolved predator, suggesting that both innate mechanisms and learning effects are involved. This behavior likely reduces individuals' risk of falling victim to predation by temporarily moving away from high-quality (i.e., conspicuous) mating partners. Accordingly, effects were stronger in bolder than shyer, large- compared with small-bodied, and female compared with male focal individuals, likely because those phenotypes face an increased predation risk overall. Our study adds to the growing body of literature appreciating the complexity of the mate choice process, where an array of intrinsic and extrinsic factors interacts during decision-making. |
doi_str_mv | 10.1093/cz/zoz031 |
format | Article |
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We used wild-caught (predator-experienced) and [F.sub.1] laboratory-reared (predator-naive) invasive Western mosquitofish Gambusia affinis from China to test whether mating preferences (assessed in a first mate choice test) would change under immediate predation threat. The same individuals were tested in a second mate choice test during which 1 of 3 types of animated predators was presented: 1) a co-occurring predator, 2) a co-evolved but not currently co-occurring predator, and 3) a non-piscivorous species as control. We compared preference scores derived from both mate choice tests to separate innate from experiential effects of predation. We also asked whether predator-induced changes in mating preferences would differ between sexes or depend on the choosing individual's personality type and/or body size. Wild-caught fish altered their mate choice decisions most when exposed to the co-occurring predator whereas laboratory-reared individuals responded most to the co-evolved predator, suggesting that both innate mechanisms and learning effects are involved. This behavior likely reduces individuals' risk of falling victim to predation by temporarily moving away from high-quality (i.e., conspicuous) mating partners. Accordingly, effects were stronger in bolder than shyer, large- compared with small-bodied, and female compared with male focal individuals, likely because those phenotypes face an increased predation risk overall. Our study adds to the growing body of literature appreciating the complexity of the mate choice process, where an array of intrinsic and extrinsic factors interacts during decision-making.</description><identifier>ISSN: 1674-5507</identifier><identifier>DOI: 10.1093/cz/zoz031</identifier><language>eng</language><publisher>Oxford University Press</publisher><subject>Environmental aspects ; Mating behavior ; Predation (Biology)</subject><ispartof>Current zoology, 2019-06, Vol.65 (3), p.305</ispartof><rights>COPYRIGHT 2019 Oxford University Press</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,27924,27925</link.rule.ids></links><search><creatorcontrib>Plath, Martin</creatorcontrib><creatorcontrib>Liu, Kai</creatorcontrib><creatorcontrib>Umutoni, Diane</creatorcontrib><creatorcontrib>Gomes-Silva, Guilherme</creatorcontrib><creatorcontrib>Wei, Jie-Fei</creatorcontrib><creatorcontrib>Cyubahiro, Eric</creatorcontrib><creatorcontrib>Chen, Bo-Jian</creatorcontrib><creatorcontrib>Sommer-Trembo, Carolin</creatorcontrib><title>Predator-induced changes of male and female mating preferences: innate and learned components</title><title>Current zoology</title><description>While many mating preferences have a genetic basis, the question remains as to whether and how learning/experience can modify individual mate choice decisions. We used wild-caught (predator-experienced) and [F.sub.1] laboratory-reared (predator-naive) invasive Western mosquitofish Gambusia affinis from China to test whether mating preferences (assessed in a first mate choice test) would change under immediate predation threat. The same individuals were tested in a second mate choice test during which 1 of 3 types of animated predators was presented: 1) a co-occurring predator, 2) a co-evolved but not currently co-occurring predator, and 3) a non-piscivorous species as control. We compared preference scores derived from both mate choice tests to separate innate from experiential effects of predation. We also asked whether predator-induced changes in mating preferences would differ between sexes or depend on the choosing individual's personality type and/or body size. Wild-caught fish altered their mate choice decisions most when exposed to the co-occurring predator whereas laboratory-reared individuals responded most to the co-evolved predator, suggesting that both innate mechanisms and learning effects are involved. This behavior likely reduces individuals' risk of falling victim to predation by temporarily moving away from high-quality (i.e., conspicuous) mating partners. Accordingly, effects were stronger in bolder than shyer, large- compared with small-bodied, and female compared with male focal individuals, likely because those phenotypes face an increased predation risk overall. Our study adds to the growing body of literature appreciating the complexity of the mate choice process, where an array of intrinsic and extrinsic factors interacts during decision-making.</description><subject>Environmental aspects</subject><subject>Mating behavior</subject><subject>Predation (Biology)</subject><issn>1674-5507</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2019</creationdate><recordtype>article</recordtype><recordid>eNptjs1LAzEQxXNQsFYP_gcBTx62TXaT7MZbKX4UCoofRymzyWSNdLNlswXpX2-0HizIwMxj-L3HI-SCswlnupia3XTX7VjBj8iIq1JkUrLyhJzG-MGYUkLzEXl77NHC0PWZD3Zr0FLzDqHBSDtHW1gjhWCpwx_ZwuBDQzc9OuwxGIzX1IcAw55aI_ThO6FrN13AMMQzcuxgHfH8947J6-3Ny_w-Wz7cLeazZdZwxmVmiqo23EjHlFaS2bq2ppCq1hWALXWJuZWlkDqt3AhgTAJXUmhwoGxu8mJMLve5Taq58sF1Qw-m9dGsZkrIgouqkoma_EOlsdh6kxo7n_4HhqsDQ2IG_Bwa2Ma4Wjw__WW_AJulcM4</recordid><startdate>20190601</startdate><enddate>20190601</enddate><creator>Plath, Martin</creator><creator>Liu, Kai</creator><creator>Umutoni, Diane</creator><creator>Gomes-Silva, Guilherme</creator><creator>Wei, Jie-Fei</creator><creator>Cyubahiro, Eric</creator><creator>Chen, Bo-Jian</creator><creator>Sommer-Trembo, Carolin</creator><general>Oxford University Press</general><scope>ISR</scope></search><sort><creationdate>20190601</creationdate><title>Predator-induced changes of male and female mating preferences: innate and learned components</title><author>Plath, Martin ; Liu, Kai ; Umutoni, Diane ; Gomes-Silva, Guilherme ; Wei, Jie-Fei ; Cyubahiro, Eric ; Chen, Bo-Jian ; Sommer-Trembo, Carolin</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-g1015-c38bc1c5f069650dbbdc356b98aad797e2d574595742c4a005a16549afa6d2c23</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2019</creationdate><topic>Environmental aspects</topic><topic>Mating behavior</topic><topic>Predation (Biology)</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Plath, Martin</creatorcontrib><creatorcontrib>Liu, Kai</creatorcontrib><creatorcontrib>Umutoni, Diane</creatorcontrib><creatorcontrib>Gomes-Silva, Guilherme</creatorcontrib><creatorcontrib>Wei, Jie-Fei</creatorcontrib><creatorcontrib>Cyubahiro, Eric</creatorcontrib><creatorcontrib>Chen, Bo-Jian</creatorcontrib><creatorcontrib>Sommer-Trembo, Carolin</creatorcontrib><collection>Gale In Context: Science</collection><jtitle>Current zoology</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Plath, Martin</au><au>Liu, Kai</au><au>Umutoni, Diane</au><au>Gomes-Silva, Guilherme</au><au>Wei, Jie-Fei</au><au>Cyubahiro, Eric</au><au>Chen, Bo-Jian</au><au>Sommer-Trembo, Carolin</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Predator-induced changes of male and female mating preferences: innate and learned components</atitle><jtitle>Current zoology</jtitle><date>2019-06-01</date><risdate>2019</risdate><volume>65</volume><issue>3</issue><spage>305</spage><pages>305-</pages><issn>1674-5507</issn><abstract>While many mating preferences have a genetic basis, the question remains as to whether and how learning/experience can modify individual mate choice decisions. We used wild-caught (predator-experienced) and [F.sub.1] laboratory-reared (predator-naive) invasive Western mosquitofish Gambusia affinis from China to test whether mating preferences (assessed in a first mate choice test) would change under immediate predation threat. The same individuals were tested in a second mate choice test during which 1 of 3 types of animated predators was presented: 1) a co-occurring predator, 2) a co-evolved but not currently co-occurring predator, and 3) a non-piscivorous species as control. We compared preference scores derived from both mate choice tests to separate innate from experiential effects of predation. We also asked whether predator-induced changes in mating preferences would differ between sexes or depend on the choosing individual's personality type and/or body size. Wild-caught fish altered their mate choice decisions most when exposed to the co-occurring predator whereas laboratory-reared individuals responded most to the co-evolved predator, suggesting that both innate mechanisms and learning effects are involved. This behavior likely reduces individuals' risk of falling victim to predation by temporarily moving away from high-quality (i.e., conspicuous) mating partners. Accordingly, effects were stronger in bolder than shyer, large- compared with small-bodied, and female compared with male focal individuals, likely because those phenotypes face an increased predation risk overall. Our study adds to the growing body of literature appreciating the complexity of the mate choice process, where an array of intrinsic and extrinsic factors interacts during decision-making.</abstract><pub>Oxford University Press</pub><doi>10.1093/cz/zoz031</doi><tpages>12</tpages></addata></record> |
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source | Access via Oxford University Press (Open Access Collection); EZB-FREE-00999 freely available EZB journals; PubMed Central; Alma/SFX Local Collection |
subjects | Environmental aspects Mating behavior Predation (Biology) |
title | Predator-induced changes of male and female mating preferences: innate and learned components |
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