Extreme storm wave influence on sandy beach macrofauna with distinct human pressures

Machado, Phillipe Mota; Costa, Leonardo Lopes; Suciu, Marjorie Cremonez; Tavares, Davi Castro; Zalmon, Ilana Rosental

doi:10.1016/j.marpolbul.2016.04.009

Cited by 45 publications

(32 citation statements)

References 40 publications

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“…For example, in a subtropical coastal soft-sediment ecosystem in South Brazil, Gallucci & Netto (2004) found that abundance and number of species of macrobenthic organisms declined during the passage of a cold front, but all values were back to pre-frontal conditions within a day. Similarly, Machado et al (2016) found recovery of macrobenthic assemblages inhabiting tropical ocean exposed beaches within seven weeks of a storm. It is important to emphasize, however, that recovery depends on the magnitude, spatial scale and return frequency of the disturbance events in soft-sediment environments and other marine systems (Lucrezi, Schlacher & Robinson, 2010; Urabe et al, 2013; McClain & Schlacher, 2015; Schlacher et al, 2015).…”

Section: Discussionmentioning

confidence: 85%

“…Most species typical of sedimentary shorelines are, to some degree, adapted to high-energy conditions and hence may recover relatively quickly (e.g., within days to weeks) from most storm events (Harris et al, 2011; Schlacher & Thompson, 2013; Machado et al, 2016). For example, in a subtropical coastal soft-sediment ecosystem in South Brazil, Gallucci & Netto (2004) found that abundance and number of species of macrobenthic organisms declined during the passage of a cold front, but all values were back to pre-frontal conditions within a day.…”

Section: Discussionmentioning

confidence: 99%

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Storm effects on intertidal invertebrates: increased beta diversity of few individuals and species

Corte

Schlacher

Checon

et al. 2017

PeerJ

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Climate change is predicted to lead to more extreme weather events, including changes to storm frequency, intensity and location. Yet the ecological responses to storms are incompletely understood for sandy shorelines, the globe’s longest land-ocean interface. Here we document how storms of different magnitude impacted the invertebrate assemblages on a tidal flat in Brazil. We specifically tested the relationships between wave energy and spatial heterogeneity, both for habitat properties (habitat heterogeneity) and fauna (β-diversity), predicting that larger storms redistribute sediments and hence lead to spatially less variable faunal assemblages. The sediment matrix tended to become less heterogeneous across the flat after high-energy wave events, whereas β-diversity increased after storms. This higher β-diversity was primarily driven by species losses. Significantly fewer species at a significantly lower density occurred within days to weeks after storms. Negative density and biomass responses to storm events were most prominent in crustaceans. Invertebrate assemblages appeared to recover within a short time (weeks to months) after storms, highlighting that most species typical of sedimentary shorelines are, to some degree, resilient to short-term changes in wave energy. Given that storm frequency and intensity are predicted to change in the coming decades, identifying properties that determine resilience and recovery of ecosystems constitute a research priority for sedimentary shorelines and beyond.

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Section: Discussionmentioning

confidence: 85%

Section: Discussionmentioning

confidence: 99%

Storm effects on intertidal invertebrates: increased beta diversity of few individuals and species

Corte

Schlacher

Checon

et al. 2017

PeerJ

View full text Add to dashboard Cite

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“…Future research should focus on the combined effects of urbanization and environmental variables and the consequences for sandy beach macrofauna, as coastal environments are becoming increasingly urbanized and exposed to several forms of human impact (Lucrezi & Schlacher, ; Machado, Costa, Suciu, Tavares, & Zalmon, ). Investment in management and conservation strategies is essential, in particular: (i) the development of protected areas with restrictions upon access and use; (ii) control of visitor numbers and their decentralization.…”

Section: Discussionmentioning

confidence: 99%

“…These crustaceans remain underground during the ebb tide, emerging only to feed with the rising water, mainly at night (Yannicelli, Palacios, Future research should focus on the combined effects of urbanization and environmental variables and the consequences for sandy beach macrofauna, as coastal environments are becoming increasingly urbanized and exposed to several forms of human impact (Lucrezi & Schlacher, 2010;Machado, Costa, Suciu, Tavares, & Zalmon, 2016).…”

Section: Discussionmentioning

confidence: 99%

Tourism impacts on benthic communities of sandy beaches

Machado¹,

Suciu²,

Costa³

et al. 2017

Marine Ecology

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This study evaluated the effect of human trampling on the benthic macrofauna of two beaches in Southeast Brazil with different levels of intensity of tourism, Grussaí (more impacted) and Manguinhos (less impacted), during periods of high and low tourism activity. The macrofauna of urbanized (U) and non‐urbanized (NU) sectors of the inter‐tidal zone was sampled and the number of visitors was recorded. General linear models revealed a decreasing in abundance of macrofauna species in the urbanized sectors of analyzed beaches, which are exposed to higher trampling impact than in non‐urbanized areas. At Manguinhos Beach, trampling did not affect the macrofauna (<1 visitors ∙ m−²), except for the polychaete Scolelepis sp., which was less abundant in the U sector. Considering the benthic community, Atlantorchestoidea brasiliensis, Hemipodia californiensis and Scolelepis sp. were more sensitive to human trampling pressure and may be used as potential bioindicators of tourism impact. Management plans should consider mitigation of the effects of tourism, such as the control of the visitor number and their decentralization.

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“…Studies have shown that these events affect benthic communities, reducing the species richness, abundance, and diversity (Castelle, Corre, & Tomlinson, 2008;Witmer & Roelke, 2014;Machado, Costa, Suciu, Tavares, & Zalmon, 2016). However, few studies have addressed this problem, concerning the effects of the climate events on O. quadrata populations.…”

Section: Introductionmentioning

confidence: 99%

Synergistic effect of extreme climatic events and urbanization on population density of the ghost crab Ocypode quadrata (Fabricius, 1787)

Machado

Tavares²,

Zalmon³

2019

Marine Ecology

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The combined effects of urbanization and extreme climatic events were examined on the ghost crab Ocypode quadrata, a well‐recognized ecological indicator in sandy beaches. The effect of storm waves was assessed before and after these climate events in beaches with different levels of urbanization in the coast of Brazil, Tropical Atlantic Ocean. The number of burrows was used as a metric for the population size of O. quadrata and the number of humans along the beaches as a proxy for the urbanization level. Significant differences were recorded in this species’ population density according to the human pressure. Our core modelling approach showed that the number of O. quadrata burrows was lower after storm waves in urbanized zones, compared to non‐urbanized ones. The interaction between storm waves and urbanization impacted the number of O. quadrata burrows negatively, and suggest that species’ populations are more vulnerable to the combined effects of extreme climatic events and urbanization. Extreme events are predicted to increase in frequency in the next few decades, and may modify or impair ecosystem functioning in sandy beaches by reducing populations of the O. quadrata, an important beach scavenger, which markedly contribute to the flux of energy in coastal trophic webs.

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Extreme storm wave influence on sandy beach macrofauna with distinct human pressures

Cited by 45 publications

References 40 publications

Storm effects on intertidal invertebrates: increased beta diversity of few individuals and species

Storm effects on intertidal invertebrates: increased beta diversity of few individuals and species

Tourism impacts on benthic communities of sandy beaches

Synergistic effect of extreme climatic events and urbanization on population density of the ghost crab Ocypode quadrata (Fabricius, 1787)

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