Assessing metacommunity processes through signatures in spatiotemporal turnover of community composition

Jabot, Franck; Laroche, Fabien; Massol, François; Arthaud, Florent; Crabot, Julie; Dubart, Maxime; Blanchet, Simon; Munoz, François; David, Patrice; Datry, Thibault

doi:10.1101/480335

Cited by 8 publications

(6 citation statements)

References 84 publications

(76 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…To evaluate how the temporal environmental shifts alter community assembly, Jabot et al (2020) proposed to integrate a temporal perspective into the conventional analytical framework on spatially structured metacommunity. By explicitly modeling the effects of spatial and temporal variation of environments on species composition, they showed cases where communities are unable to track current environmental status when the environment temporally varies (see box 1 in Jabot et al, 2020). Shinohara and Yoshida (2021) extended this idea to a multi-trophic level context in grassland communities.…”

Section: Lagged Responses In Community Assemblymentioning

confidence: 99%

Spatiotemporal dimensions of community assembly

et al. 2022

View full text Add to dashboard Cite

Ecological communities are assembled through a series of multiple processes, including dispersal, abiotic and biotic filtering, and ecological drift. Although these assembly processes act in concert to structure local communities, their relative importance is considerably variable among study systems. While such contingency of community assembly has been widely appreciated, the empirical and theoretical evidence is scattered around in the literature, and few efforts have been made to synthesize it. In this mini‐review, we summarize the accumulated evidence of the context‐dependency of community assembly rules, to reach a rough generalization of the contingency. Specifically, we argue that spatial and temporal dimensions can serve as general axes that regulate the relative importance of assembly processes. To this end, we synthesize the current understanding of how the relative importance of multiple assembly processes changes with spatial scales and complexity, and with time in the long and short terms. This review concludes that spatial and temporal dimensions can be common currencies of community assembly rules that are shared across various systems.

show abstract

Section: Lagged Responses In Community Assemblymentioning

confidence: 99%

Spatiotemporal dimensions of community assembly

et al. 2022

View full text Add to dashboard Cite

show abstract

“…Also, in terrestrial ecosystems, Bloch, Higgins, and Willig (2007) showed that hurricanes reduced the among-site connectivity leading to a less nested terrestrial gastropod metacommunity. Besides the above-mentioned studies, most investigations have neglected temporal variability (Brown, Sokol, Skelton, & Tornwall, 2017;Datry, Bonada, & Heino, 2016;Jabot et al, 2018) and the long-term dynamics of metacommunities remain poorly understood.…”

Section: Introductionmentioning

confidence: 99%

As time goes by: 20 years of changes in the aquatic macroinvertebrate metacommunity of Mediterranean river networks

Cañedo‐Argüelles

Gutiérrez‐Cánovas

Acosta

et al. 2020

Journal of Biogeography

View full text Add to dashboard Cite

Aim To analyse temporal metacommunity dynamics in river networks in relation to hydrological conditions and dispersal. Location Fifteen river reaches from the Llobregat, Besòs and Foix catchments in the North‐Eastern Iberian Peninsula. Taxon Aquatic macroinvertebrates belonging to 99 different families. Methods We sampled aquatic macroinvertebrate communities during spring in 20 consecutive years. We built two environmental distances (one related with water chemistry and another one with river flow regime) and two spatial distances (network distance and topographic distance). Then we used Mantel tests (accounting for spatial autocorrelation) to relate macroinvertebrate dissimilarity with environmental and spatial distances. Additionally, we determined the dry and wet years using the Standardized Precipitation Index (SPI) and we classified macroinvertebrate families based on their ability to fly and to drift. Finally, we ran a linear regression model including the correlation value (r) of each Mantel test as response variable and distance type (environmental or spatial), SPI, dispersal mode, their pairwise interactions and a three‐way interaction as predictor variables. Results Metacommunity organization varied over time and it was significantly affected by precipitation, which can be related to river network connectivity. The environmental filters, mainly the flow regime, were generally more important than the spatial filters in explaining community dissimilarity over the study period. However, this depended on the dispersal abilities of the organisms. Network fragmentation due to flow intermittence during the dry years significantly reduced the dispersal capacity of strong aerial dispersers, leading to spatially structured metacommunities. For strong drift dispersers, community dissimilarity patterns were generally best explained by environmental filters regardless of SPI. Main conclusions A significant temporal variation in metacommunity organization can be expected in highly dynamic systems (e.g. Mediterranean rivers) and it might depend on the dispersal modes and abilities of the organisms, since they determine the response to changes in environmental and landscape filters.

show abstract

“…We adapted the individual-based simulation algorithm of metacommunity dynamics in discrete time of Jabot et al (2020) to riverine landscapes. We generated a virtual river network (socalled optimal channel network, OCN) with the R-package OCNnet (Carraro et al 2020(Carraro et al , 2021.…”

Section: Dendritic River Networkmentioning

confidence: 99%

“…We modelled individual mortality in the metacommunity at each time step with a Bernoulli draw with fixed mortality probability d. In addition, the occurrence of drying events also influenced patch viability and therefore individual mortality. We added a component to the model of Jabot et al (2020) to account for pulse increase of individual mortality induced by drying events. At a given time t, a local patch can be dry or wet.…”

Section: (I) Mortalitymentioning

confidence: 99%

Temporal variation of patch connectivity determines biodiversity recovery from recurrent disturbances

Jacquet

Munoz

Bonada

et al. 2022

Preprint

Self Cite

View full text Add to dashboard Cite

Understanding the capacity of ecological systems to withstand and recover from disturbances is a major challenge for ecological research in the context of environmental change. Disturbances have multi-scale effects: they can cause species extinctions locally and alter connectivity between habitat patches at the metacommunity level. Yet, our understanding of how disturbances influence landscape connectivity remains limited. To fill this gap, we develop a novel connectivity index that integrates the temporal variation of patch connectivity induced by disturbances, which can be applied to any spatially-structured habitat. We then combine this index with a metacommunity model to specifically investigate biodiversity recovery from drying events in river network metacommunities. We demonstrate that patch connectivity explains variations of species richness between groups of organisms with contrasting dispersal modes and captures the effect of drying intensity (i.e., fraction of patches that dry-up) and drying location on community recovery. As a general rule, loss of patch connectivity decreases community recovery, regardless of patch location in the river network, dispersal mode, or drying intensity. Local communities of flying organisms maintained higher patch connectivity in drying river networks compared to organisms with strictly aquatic dispersal, which explained the higher recovery capacity of this group from drying events. The general relationship between patch connectivity and community recovery we found can be applied to any spatial network subject to temporal variation of connectivity, thus providing a powerful tool for biodiversity management in dynamic landscapes.

show abstract

Assessing metacommunity processes through signatures in spatiotemporal turnover of community composition

Cited by 8 publications

References 84 publications

Spatiotemporal dimensions of community assembly

Spatiotemporal dimensions of community assembly

As time goes by: 20 years of changes in the aquatic macroinvertebrate metacommunity of Mediterranean river networks

Temporal variation of patch connectivity determines biodiversity recovery from recurrent disturbances

Contact Info

Product

Resources

About