Seasonal variation in the metacommunity structure of benthic macroinvertebrates in a large river-connected floodplain lake

Li, Zhengfei; Tonkin, Jonathan D.; Meng, Xingliang; Liu, Zhenyuan; Zhang, Junqian; Xiao, Chen; Xie, Zhicai; Heino, Jani

doi:10.1016/j.ecolind.2022.108662

Cited by 13 publications

(8 citation statements)

References 72 publications

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“…Subsequent studies on different study systems (e.g., rock pools, lakes, rivers, ponds, terrestrial systems) have attempted to apply these different archetypes to natural metacommunities (e.g., Bloch et al, 2007; Declerck et al, 2011; Dias et al, 2016; Kulkarni et al, 2019; Meynard et al, 2013), thereby contributing to our understanding of the underlying dynamics of metacommunities in terrestrial and aquatic systems. However, dynamics of a metacommunity system (and, in effect, assigned archetype) varied depending on the studied functional/ecological group (Pandit et al, 2009; Pineda et al, 2022; Tonkin et al, 2015), time scales (Castillo‐Escrivà et al, 2020; Li et al, 2022), geographic scale (Dümmer et al, 2016; Santos et al, 2016), and focal taxon (Tonkin et al, 2015). Any metacommunity is, to a varying degree, probably influenced by environmental filtering/niche selection, dispersal limitation, species interactions and stochastic drift.…”

Section: Introductionmentioning

confidence: 99%

DNA metabarcoding reveals impact of local recruitment, dispersal, and hydroperiod on assembly of a zooplankton metacommunity

2022

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Understanding the environmental impact on the assembly of local communities in relation to their spatial and temporal connectivity is still a challenge in metacommunity ecology. This study aims to unravel underlying metacommunity processes and environmental factors that result in observed zooplankton communities. Unlike most metacommunity studies, we jointly examine active and dormant zooplankton communities using a DNA metabarcoding approach to overcome limitations of morphological species identification. We applied two‐fragment (COI and 18S) metabarcoding to monitor communities of 24 kettle holes over a two‐year period to unravel (i) spatial and temporal connectivity of the communities, (ii) environmental factors influencing local communities, and (iii) dominant underlying metacommunity processes in this system. We found a strong separation of zooplankton communities from kettle holes of different hydroperiods (degree of permanency) throughout the season, while the community composition within single kettle holes did not differ between years. Species richness was primarily dependent on pH and permanency, while species diversity (Shannon Index) was influenced by kettle hole location. Community composition was impacted by kettle hole size and surrounding field crops. Environmental processes dominated temporal and spatial processes. Sediment communities showed a different composition compared to water samples but did not differ between ephemeral and permanent kettle holes. Our results suggest that communities are mainly structured by environmental filtering based on pH, kettle hole size, surrounding field crops, and permanency. Environmental filtering based on specific conditions in individual kettle holes seems to be the dominant process in community assembly in the studied zooplankton metacommunity.

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Section: Introductionmentioning

confidence: 99%

DNA metabarcoding reveals impact of local recruitment, dispersal, and hydroperiod on assembly of a zooplankton metacommunity

2022

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“…This might explain why there was so much residual variance in our ordination‐based models. The finding of null models, however, is not consistent with the conclusion of most metacommunity studies conducted in aquatic ecosystems, suggesting that deterministic processes prevail in controlling ecological communities (e.g., Hill et al, 2019; Jamoneau et al, 2018; Li et al, 2022).…”

Section: Discussionmentioning

confidence: 68%

Unravelling the factors affecting multiple facets of macroinvertebrate beta diversity in the World's Third Pole

Heino

Zhang

et al. 2023

Journal of Biogeography

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Aim: Disentangling how stochastic and deterministic processes contribute to variation in beta diversity is a common goal for ecologists and biogeographers. However, such studies are scarce in alpine streams, especially when different diversity facets are considered. Here, we combined different approaches to examine the drivers of taxonomic, phylogenetic and functional beta diversities, and discussed how our results can inform community assembly and biodiversity conservation in Tibetan streams.Location: Tibet plateau. Taxon: Macroinvertebrates. Methods:We first partitioned multiple facets of beta diversity (Btotal) into species replacement (Brepl) and richness difference (Brich) as well as local (LCBD) or species (SCBD) contributions. Then, we applied ordination methods to examine the relative importance of local, climatic and spatial factors on Btotal, Brepl and Brich, respectively. We explored community assembly rules using null models based on trait and phylogeny structure.Results: Btotal displayed high values and was primarily driven by Brepl. Local, climatic and spatial factors were poor predictors of the different facets of beta diversity. Null models showed that the diversity metrics did not differ from those of null expectations, suggesting that most individual streams might be occupied by species that were merely random draws from the functional or phylogenetic pools available in this region. Partitioning beta diversity into LCBD and SCBD implied that the upper canyon streams were more unique than those at lower elevations and can be valuable for biodiversity conservation.Main Conclusions: Analysing multiple facets of beta diversity provide important insights into community assembly that cannot be acquired by focusing on taxonomic diversity only. Using a multi-faceted approach involving species, phylogenetic and trait data, our study not only sheds light on the assembly mechanisms of macroinvertebrate communities in alpine streams, but also bring inspirations for biodiversity conservation in the 'World's Third Pole' that is highly sensitive to global change.

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“…Throughout the year, seasons can alter habitat conditions in ways that increase habitat availability (e.g., resource pulses) or through imposing new environmental filters, and thus it is surprising that the temporal component of metacommunity dynamics is often neglected (Holyoak et al, 2020). Aquatic macroinvertebrate community structure can change seasonally due to variations in habitat condition, such as in a floodplain in China where environmental filtering effects became stronger over a season as habitats became more fragmented (Li et al, 2022). Land use can also have a seasonal effect on streams, and the influence of contaminants on water quality has been shown to be elevated during wetter periods (Shi et al, 2017; Zhang et al, 2021).…”

Section: Discussionmentioning

confidence: 99%

Metabarcoding metacommunities: time, space, and land use interact to structure aquatic macroinvertebrate communities in streams

Gleason

Hanner

Cottenie

2022

Preprint

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There is an increasing need to move beyond evaluating the effect of land use on stream communities by only studying local variables, and instead incorporate a metacommunity perspective which integrates environmental and spatial factors across larger spatial scales. The use of molecular tools (DNA metabarcoding) to identify bioindicator groups, such as aquatic macroinvertebrates, can provide greater taxonomic resolution to explore patterns in stream metacommunities. In this study, we collected aquatic macroinvertebrates from streams in southern Ontario which spanned a gradient of agricultural disturbance and used DNA metabarcoding to identify the species composition from these samples. We address a significant knowledge gap in previous stream aquatic macroinvertebrate metacommunity studies by incorporating molecular identification as well as a temporal component. We observed that a combination of local habitat conditions, regional agricultural land use, and spatial position influenced aquatic macroinvertebrate community composition, suggesting there is an interaction between environmental filtering and dispersal processes that structures these communities. However, aquatic macroinvertebrate communities were also highly dissimilar between streams and composed of many rare species, and a large percentage of unexplained variation suggests that there is a strong stochastic component to community assembly. We also observed that there is a seasonal component to metacommunity dynamics, with different water quality variables being significant to community composition in each sampling month. While we expected that an increased percentage of surrounding agricultural land use would result in more homogenous macroinvertebrate communities, we only detected this relationship in May and found evidence that a larger riparian buffer width can mitigate the effects of agricultural land use. We demonstrate the utility of DNA metabarcoding for revealing patterns in metacommunity dynamics that may not be detectable using coarse taxonomic identifications, and reveal the importance of incorporating a seasonal component when evaluating the influence of land use on community composition.

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Seasonal variation in the metacommunity structure of benthic macroinvertebrates in a large river-connected floodplain lake

Cited by 13 publications

References 72 publications

DNA metabarcoding reveals impact of local recruitment, dispersal, and hydroperiod on assembly of a zooplankton metacommunity

DNA metabarcoding reveals impact of local recruitment, dispersal, and hydroperiod on assembly of a zooplankton metacommunity

Unravelling the factors affecting multiple facets of macroinvertebrate beta diversity in the World's Third Pole

Metabarcoding metacommunities: time, space, and land use interact to structure aquatic macroinvertebrate communities in streams

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