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Anthropogenic pressures enhance the deleterious effects of extreme storms on rocky shore communities

Sanz-Lazaro, Carlos ; Casado-Coy, Nuria ; Navarro-Ortín, Aitor ; Terradas-Fernández, Marc

The Science of the total environment, 2022-04, Vol.817, p.152917-152917, Article 152917 [Periódico revisado por pares]

Netherlands: Elsevier B.V

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  • Título:
    Anthropogenic pressures enhance the deleterious effects of extreme storms on rocky shore communities
  • Autor: Sanz-Lazaro, Carlos ; Casado-Coy, Nuria ; Navarro-Ortín, Aitor ; Terradas-Fernández, Marc
  • Assuntos: Anthropogenic Effects ; Climate Change ; Cumulative impacts ; Ecosystem ; Eutrophication ; Extreme events ; Multiple stressors ; Resilience ; Resistance
  • É parte de: The Science of the total environment, 2022-04, Vol.817, p.152917-152917, Article 152917
  • Notas: ObjectType-Article-1
    SourceType-Scholarly Journals-1
    ObjectType-Feature-2
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  • Descrição: Climate change is not only changing the mean values of environmental parameters that modulate ecosystems, but also the regime of disturbances. Among them, extreme events have a key role in structuring biological communities. Ecosystems are frequently suffering multiple anthropogenic pressures which can cause effects that are not additive. Thus, the effects of extreme events need to be studied in combination with other pressures to adequately evaluate their consequences. We performed a manipulative approach in two rocky shores in the Mediterranean with contrasting levels of anthropogenic pressure (mainly eutrophication) simulating storms with different disturbance regimes in the intertidal and subtidal zones. In the short-term, an extreme storm had a greater impact on the species assemblage than other disturbance regimes, being especially notable in the area suffering from a high anthropogenic pressure. In this area, the species assemblages that suffered from an extreme storm took a longer time to recover than the ones affected by other disturbance regimes and were generally more affected after the disturbance. The intertidal zone, having more variable environmental conditions than the subtidal zone, was more resistant and able to recover from extreme storms. Our results suggest that the effects of extreme events on biological communities could be strengthened when co-occurring with anthropogenic pressures, especially ecosystems adapted to less variable environmental conditions. Thus, limiting other anthropogenic pressures that ecosystems are suffering is crucial to maintain the natural resistance and recovery capacity of ecosystems towards extreme events such as storms. [Display omitted] •An extreme storm had greater impact on assemblage than other disturbance regimes.•The assemblage in the area with a high anthropogenic pressure was more affected by the extreme events.•The assemblages that suffered an extreme storm were generally more affected after the disturbance.•The effects of extreme events could be strengthened when occurring with anthropogenic pressures.
  • Editor: Netherlands: Elsevier B.V
  • Idioma: Inglês
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