2020
DOI: 10.1007/s00027-020-0695-3
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Population growth correlates with increased fecundity in three-spined stickleback populations in a human-disturbed environment

Abstract: Human activity is altering the dynamics of populations through effects on fecundity, mortality and migration. An increased abundance of three-spined stickleback (Gasterosteus aculeatus) in the Baltic Sea has been attributed to a human-caused decline of top predators. However, recent research indicates that a top-down effect cannot fully explain the population growth, but the contribution of a bottom-up effect has not been investigated. Yet, anthropogenic eutrophication has increased algae biomass at the spawni… Show more

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Cited by 11 publications
(18 citation statements)
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“…This is plausible as the threespine stickleback spends the summer in shallow coastal waters where eutrophication has enhanced the growth of filamentous algae (Bäck et al 2000;Candolin 2004;Gubelit & Kovalchuk 2010;Kraufvelin et al 2006;Rinne et al 2018;Rinne et al 2011) and thereby the abundance of prey, such as gammarids and other grazers (Candolin et al 2016a;Olafsson et al 2013;, the preferred prey of the threespine stickleback in coastal waters (Candolin et al 2016a;Jakubaviciute et al 2017). In support of a bottom-up effect, the population growth of the stickleback in the Gulf of Finland correlates with increased population fecundity in terms of the proportion of gravid females in the population (Candolin & Voigt 2020). Females develop several sequential clutches of eggs during the breeding season and could profit from eutrophication in terms of increased food intake and, thus, fecundity.…”
Section: Introductionmentioning
confidence: 99%
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“…This is plausible as the threespine stickleback spends the summer in shallow coastal waters where eutrophication has enhanced the growth of filamentous algae (Bäck et al 2000;Candolin 2004;Gubelit & Kovalchuk 2010;Kraufvelin et al 2006;Rinne et al 2018;Rinne et al 2011) and thereby the abundance of prey, such as gammarids and other grazers (Candolin et al 2016a;Olafsson et al 2013;, the preferred prey of the threespine stickleback in coastal waters (Candolin et al 2016a;Jakubaviciute et al 2017). In support of a bottom-up effect, the population growth of the stickleback in the Gulf of Finland correlates with increased population fecundity in terms of the proportion of gravid females in the population (Candolin & Voigt 2020). Females develop several sequential clutches of eggs during the breeding season and could profit from eutrophication in terms of increased food intake and, thus, fecundity.…”
Section: Introductionmentioning
confidence: 99%
“…Manuscript to be reviewed Candolin et al 2016b;Candolin & Voigt 2020;Olsson et al 2019). The increase has been attributed to a top-down effect from the decline of top-predators (Eriksson et al 2011;Ljunggren et al 2010).…”
Section: Introductionmentioning
confidence: 99%
See 1 more Smart Citation
“…The abundance of the threespine stickleback, Gasterosteus aculeatus , has increased in the Gulf of Finland during the last decades, as well as in other parts of the Baltic Sea ( Bergström et al, 2015 ; Candolin, Tukiainen & Bertell, 2016b ; Candolin & Voigt, 2020 ; Olsson et al, 2019 ). The increase has been attributed to a top-down effect from the decline of top-predators ( Eriksson et al, 2011 ; Ljunggren et al, 2010 ).…”
Section: Introductionmentioning
confidence: 99%
“…This is plausible as the threespine stickleback spends the summer in shallow coastal waters where eutrophication has enhanced the growth of filamentous algae ( Bäck, Lehvo & Blomster, 2000 ; Candolin, 2004 ; Gubelit & Kovalchuk, 2010 ; Kraufvelin et al, 2006 ; Rinne et al, 2018 ; Rinne, Salovius-Lauren & Mattila, 2011 ) and thereby the abundance of prey, such as gammarids and other grazers ( Candolin, Johanson & Budria, 2016a ; Olafsson et al, 2013 ; Salovius & Kraufvelin, 2004 ), the preferred prey of the threespine stickleback in coastal waters ( Candolin, Johanson & Budria, 2016a ; Jakubaviciute et al, 2017 ). In support of a bottom-up effect, the population growth of the stickleback in the Gulf of Finland correlates with increased population fecundity in terms of the proportion of gravid females in the population ( Candolin & Voigt, 2020 ). Females develop several sequential clutches of eggs during the breeding season and could profit from eutrophication in terms of increased food intake and, thus, fecundity.…”
Section: Introductionmentioning
confidence: 99%