2019
DOI: 10.1007/s00227-019-3600-7
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Temperature mediates the outcome of species interactions in early life-history stages of two sympatric kelp species

Abstract: Ocean warming can mediate species interactions and provoke changes in community structure worldwide. Species interactions vary along environmental gradients and life-history stages and increasing temperatures may change competitive dominance between species. Kelps, being marine foundation species, have a complex heteromorphic life cycle, with the early developmental stages being a bottleneck for successful establishment of the adult population. Here, we investigated how temperature influences interactions in e… Show more

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Cited by 18 publications
(16 citation statements)
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“…This falls well into the reported range of other kelp species (Müller et al 2008;Augyte et al 2019), although germination rates of E. radiata were generally in the higher range compared to Macrocystis pyrifera (39-66%; (Leal et al 2014)), Saccharina latissima (syn. Laminaria saccharina; 0-75%; (Lee and Brinkhuis 1988)), Alaria esculenta (~ 60%; (Zacher et al 2019)), and Laminaria digitata (~ 55-70%; Bartsch et al 2013;Zacher et al 2019)). Both photoperiod and temperature significantly affected germination of E. radiata with short daylength (8:16) and winter (14 °C) and summer (20 °C) temperatures resulting in significantly reduced germination rates.…”
Section: Germinationmentioning
confidence: 99%
“…This falls well into the reported range of other kelp species (Müller et al 2008;Augyte et al 2019), although germination rates of E. radiata were generally in the higher range compared to Macrocystis pyrifera (39-66%; (Leal et al 2014)), Saccharina latissima (syn. Laminaria saccharina; 0-75%; (Lee and Brinkhuis 1988)), Alaria esculenta (~ 60%; (Zacher et al 2019)), and Laminaria digitata (~ 55-70%; Bartsch et al 2013;Zacher et al 2019)). Both photoperiod and temperature significantly affected germination of E. radiata with short daylength (8:16) and winter (14 °C) and summer (20 °C) temperatures resulting in significantly reduced germination rates.…”
Section: Germinationmentioning
confidence: 99%
“…Both co‐occur with L. digitata at 2.5 m depth (Hop et al 2012, Bartsch et al 2016). Results from a laboratory study suggest that A. esculenta may outcompete L. digitata under certain conditions (Zacher et al 2019), but the competitive strength of H. nigripes is completely unknown. It cannot be fully excluded that the unusual zonation pattern is a sampling artifact.…”
Section: Discussionmentioning
confidence: 99%
“…However, as little as a 1–2°C increase of the seasonal lowest SST can cause a sharp decline in the standing biomass and failed sporophyte reproduction of S. japonica (Gao et al 2015). This climate‐related environmental abnormality affects growth rates, disease susceptibility, survival ratios, recruitment success, species interactions and reproductive seasonality (Dring 1982; Harley et al 2012; Gao et al 2015; Muth et al 2019; Zacher et al 2019). Ultimately, the overall phyco‐geographic patterns and even the success of cultivation are affected.…”
Section: Representative Challengesmentioning
confidence: 99%