When time affects space: Dispersal ability and extreme weather events determine metacommunity organization in marine sediments

Corte, Guilherme Nascimento; Gonçalves‐Souza, Thiago; Checon, Hélio H.; Siegle, Eduardo; Coleman, Ross A.; Amaral, A. Cecília Z.

doi:10.1016/j.marenvres.2018.02.009

Cited by 29 publications

(16 citation statements)

References 89 publications

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“…distribution (Pechenik et al 2000;Hilliard et al 2020), were not included during the 2nd sampling design. However, dispersal effects may also play a role, as shown by previous studies, and the intensity of spatial importance varies with dispersal mode (Rodil et al 2018, Corte et al 2019. Although dispersal mode is known to vary among species of the Capitella complex (Méndez et al 2000) and no information is available for the species in the area, the interpolation maps show an aggregated distribution in a few sites for most species, which suggests that dispersal limitation or selective recruitment may act on the observed spatial patterns.…”

Section: Discussionmentioning

confidence: 86%

“…The effect of spatial processes in benthic assemblages has been recognized and gained recent attention (e.g., Quillien et al 2015;Rodil et al 2018;Corte et al 2019). Spatial autocorrelation in the distribution has been found for Capitellidae (Hilliard et al Table 4 Redundancy analysis (RDA) results comparing the overall significance, the selected variables, and the total adjusted R 2 between the species and the genera model, for the model with environmental and spatial variables.…”

Section: Discussionmentioning

confidence: 99%

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Using the Capitella complex to investigate the effects of sympatric cryptic species distinction on ecological and monitoring studies in coastal areas

et al. 2021

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The polychaete Capitella capitata is historically one of the most commonly used indicators of organic enrichment in marine benthic environments. However, this taxon has been used to refer to several cryptic species with distinct environmental tolerances, which may compromise ecological assessment and monitoring programs. In this study, we aimed to (1) assess the overlap and patterns of dominance in the spatial and temporal distribution and response to environmental variability of different species of the C. capitata complex in an urbanized coastal area and (2) investigate how the taxonomic resolution (species vs genera) could affect the observed patterns (i.e., whether the acknowledgement of cryptic species may affect the outcome of ecological assessments). Eight sampling campaigns were carried out from September 2011 to September 2013 in a heavily anthropized tidal flat in Southeastern Brazil. Four species of the complex were identified. Capitella nonatoi was the most abundant (~80% of the total abundance). Overall, the four species of Capitella showed high overlap in spatial distribution, especially between the most abundant ones. At community level, taxonomic resolution did not influence the perceived relationships with environmental and spatial variables, a result likely driven by the dominance of C. nonatoi and relatively high spatial overlap among species. The assemblage was influenced mainly by chlorophyll a and hydrocarbons, corroborating the indicator status of the taxa. At species level, however, individual response to environmental variability differed, suggesting that species may have distinct requirements. Thus, the use of a particular taxonomic resolution in ecological studies depends on the questions to be addressed. The recognition of cryptic diversity may be important for biodiversity assessments and studies at the population level (i.e., dynamics, behavior). Although further studies are needed to corroborate the observed patterns of dominance at larger scales, for community-level assessments, our results suggest that identifying Capitella to species level may not be needed for local ecological monitoring.

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Section: Discussionmentioning

confidence: 86%

Section: Discussionmentioning

confidence: 99%

Using the Capitella complex to investigate the effects of sympatric cryptic species distinction on ecological and monitoring studies in coastal areas

et al. 2021

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“…The presence of suitable habitats and the ability of species to reach these habitats is what affects the extent of species distribution. Explaining differences in species life histories can provide a better understanding of species distribution and coexistence patterns (Corte et al, 2018). In addition, dispersal limitation causes niches to remain vacant, thereby obscuring expected species-environment associations under environmental filtering and potentially resulting in community nestedness (Lekberg and Koide, 2005).…”

Section: Discussionmentioning

confidence: 99%

Freshwater Releases Into Estuarine Wetlands Change the Determinants of Benthic Invertebrate Metacommunity Structure

Liu

et al. 2021

Front. Ecol. Evol.

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In recent years, the relative importance of the processes driving metacommunity composition has aroused extensive attention and become a powerful approach to identify community patterns and their regulatory mechanisms. We investigated variations in the composition of benthic community in restored wetlands and natural wetlands in the Yellow River Delta (Shandong Province, China). First, spatial structures within each wetland were modeled with Moran eigenvector maps. Next, the variation in community structure among local environmental and spatial variables was partitioned using constrained ordination, and the “elements of metacommunity structure” analysis was used to determine the patterns of best fit for species distributions within metacommunities. Finally, the null model was used to analyze non-random patterns of species co-occurrence. The community structure of benthic invertebrates in restored wetlands and natural wetlands differed significantly. The benthic invertebrate metacommunity structure showed a nested distribution in restored wetlands and a quasi-Clementsian structure in natural wetlands. Pure environmental fractions and pure spatial fractions were critical in regulating benthic invertebrate metacommunities of restored wetlands. In natural wetlands, pure spatial fractions and the interaction between environmental and spatial factors (shared fractions) played a major role in the metacommunity. A species co-occurrence analysis showed that species co-occurred more frequently than expected by chance, demonstrating that biotic interactions were not the main driver of metacommunity structures in both wetland types. Accordingly, the benthic invertebrate metacommunity in estuarine wetlands following freshwater releases was mostly determined by environmental and spatial effects, which resulted in a metacommunity with nested distribution. These results are important for biodiversity protection and ecosystem management of estuarine wetlands in the Yellow River Delta.

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“…When spatial contiguity of oiling among beaches depresses populations over larger scales (many km) dispersal of adults will play a smaller, if any, role in influencing post-oiling recovery population size. Now the capacity for a local population to recover from a large mortality event depends solely on recruitment of individuals from reproduction occurring in distant, unaffected source populations that arrive via coastal currents connecting affected and unaffected beaches (Grantham et al 2003, Thrush et al 2013, Corte et al 2018, Rodil et al 2018. Consequently, the spatial matrix of oiled and unoiled beaches, including the absolute distances and the presence and direction of coastal currents, will influence recovery rates when recruitment depends on distant reproducing populations.…”

Section: Habitat Modelsmentioning

confidence: 99%

Estimates of losses and recovery of ecosystem services for oiled beaches lack clarity and ecological realism

Fegley

Michel²

2021

Ecosphere

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When time affects space: Dispersal ability and extreme weather events determine metacommunity organization in marine sediments

Cited by 29 publications

References 89 publications

Using the Capitella complex to investigate the effects of sympatric cryptic species distinction on ecological and monitoring studies in coastal areas

Using the Capitella complex to investigate the effects of sympatric cryptic species distinction on ecological and monitoring studies in coastal areas

Freshwater Releases Into Estuarine Wetlands Change the Determinants of Benthic Invertebrate Metacommunity Structure

Estimates of losses and recovery of ecosystem services for oiled beaches lack clarity and ecological realism

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