Metacommunity structure of zooplankton in river networks: Roles of environmental and spatial factors

Zhao, Kun; Song, Kun; Pan, Yangdong; Wang, Lizhu; Liu, Da; Wang, Quanxi

doi:10.1016/j.ecolind.2016.07.026

Cited by 82 publications

(52 citation statements)

References 51 publications

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“…These assumptions may be relatively safe in some metacommunities under some conditions, for example wind dispersed plants and zooplankton. However, in many metacommunities, dispersal is likely highly non-random and directional (Lowe & Mcpeek, 2014), even in taxonomic groups that are often considered to be generally diffusive dispersers (Zhao et al, 2017). The need for a more spatially explicit view of dispersal in many metacommunities is obvious, and a number of investigations pioneered this integration of spatially-explicit dynamics into metacommunity ecology from the perspective of concept and theory (Buenau, Rassweiler, & Nisbet, 2007;Economo, 2011;Economo & Keitt, 2008;Fagan, 2002;Grant, Lowe, & Fagan, 2007;Holland & Hastings, 2008), and empirically (Altermatt, Bieger, Carrara, Rinaldo, & Holyoak, 2011;Kneitel & Miller, 2003;Shurin, Cottenie, & Hillebrand, 2009;Starzomski & Srivastava, 2007).…”

Section: Introductionmentioning

confidence: 99%

Experimentally disentangling the influence of dispersal and habitat filtering on benthic invertebrate community structure

2017

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Abstract1. Ecological communities are structured by a combination of local processes like habitat filtering and species interactions, and regional forces driven by the dispersal of organisms between localities on a landscape. Previous studies suggest that the position of local communities within a dispersal network can greatly influence the relative influence of these two sets of processes on community assembly. However, the majority of previous investigations have used models or inferences based on observational data to investigate these hypotheses, while experiments directly addressing this question have been rare. 2.We experimentally investigated the relative influence of local and regional processes in structuring benthic invertebrate communities using artificial streams.We manipulated three factors-source pool for the macroinvertebrate community (headwater vs. mainstem) as a surrogate of network location, habitat complexity (high vs. low) in the flume, and dispersal (high vs. low)-and followed changes in macroinvertebrate community structure for 8 weeks.3. Previous research suggests that because headwater (HW) streams are isolated within river networks, HWs are less influenced by regional processes relative to more well-connected mainstems (MSs). We therefore predicted (i) that flumes colonised from a HW source community would respond more strongly to our dispersal treatment than those colonised by MS communities because MS were already largely structured through dispersal-driven processes, and (ii) that both HW and MS communities would respond to manipulations of local habitat, indicating that responses to the dispersal treatment were a direct result of dispersal driven dynamics rather than specific affinity for conditions in the flumes.4. Both of our predictions were strongly supported by the results of the experiment. For flumes with HW source pools, the high dispersal treatment had significantly higher diversity than low dispersal flumes. However, this difference only occurred in flumes with HW source pools and did not occur in flumes with MS sources. There was also strong evidence of community composition in HW flumes shifting significantly towards the macroinvertebrate composition in our experimental dispersal treatment. The major effect of experimental dispersal was to introduce new species in fairly low abundances as would be expected from dispersal via drift over a relatively short time. Both MS and HW colonised flumes showed highly significant signals of habitat filtering, though the influence of specific habitat differed between the source types.

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Section: Introductionmentioning

confidence: 99%

Experimentally disentangling the influence of dispersal and habitat filtering on benthic invertebrate community structure

2017

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“…Differences in zooplankton community structure and in its main compositional groups pre‐ and post‐dam were mainly evident in the ebb (entire zooplankton community, testate amoebae and rotifers) and low‐water hydrological periods (cladocerans). Other floodplain river studies have also detected the most pronounced differences in zooplankton community structure at ebb or low water (Frutos et al., ; Jose de Paggi & Paggi, ; Thomaz et al., ; Zhao et al., ). In the MRT analysis, the zooplankton communities in low‐water periods pre‐ and post‐dam were different enough to be classified into two groups.…”

Section: Discussionmentioning

confidence: 92%

“…Planktonic communities are often structured spatially and temporally by environmental and biological gradients. The physical and chemical effects of damming can affect plankton community composition in altered water channels and floodplains (Fan, He, & Wang, ; Gascón et al., ; Heino, Melo, et al., ; Heino, Soininen, Alahuhta, Lappalainen, & Virtanen, ; Zhao et al., ). For plankton, critical habitat alterations imposed by damming include modified quantity and quality of sediment transport (Castello & Macedo, ; Fearnside, ) as well as changes in natural seasonality in river flows that reduces the habitat diversity and favours high levels of endemism (Junk, Bayley, & Sparks, ; Salo et al., ).…”

Section: Introductionmentioning

confidence: 99%

“…For plankton, critical habitat alterations imposed by damming include modified quantity and quality of sediment transport (Castello & Macedo, ; Fearnside, ) as well as changes in natural seasonality in river flows that reduces the habitat diversity and favours high levels of endemism (Junk, Bayley, & Sparks, ; Salo et al., ). In addition, the mobility and dispersal of planktonic organisms along the river itself are reduced by the physical barrier of the dam (Zhao et al., ).…”

Section: Introductionmentioning

confidence: 99%

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Damming interacts with the flood pulse to alter zooplankton communities in an Amazonian river

et al. 2019

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Flow modification of lotic ecosystems is one of the main threats to global freshwater biodiversity. Commonly, and in the river studied here, modification results from hydroelectric dam installation. We evaluated the impacts of damming on zooplankton communities in the Amazonian floodplain of the Madeira River (Porto Velho, Rondônia, Brazil) following construction in 2012 of the run‐of‐river dam of Jirau Hydroelectric Power Plant. Using data sampled between 2009 and 2015, we tested for discontinuities in zooplankton community composition attributable to damming and the naturally occurring flood pulse. The flood pulse remained the main predictor explaining variation in zooplankton community structure even with the installation of the dam on the Madeira River. Despite this, discontinuities for the entire zooplankton community and for the main compositional groups (testate amoebae, rotifers, cladocerans, and copepods) were detected in relation to the dam (pre‐/post‐dam periods), mainly in ebb and low water, and with weaker evidence of dam effects during flood and highwater hydrological periods. A multivariate regression tree explained 9.6% of the variation in zooplankton communities and identified four groups: (1) flood and high‐water periods; (2) low water post‐dam; (3) low water pre‐dam; and (4) ebb hydrological periods. The deviance in each multivariate regression tree node was attributable to variation in eight rotifer, three testate amoeba, and three copepod taxa. Our study demonstrates that the flood pulse, dam construction, and interaction between both of these factors affect zooplankton community structure in the Madeira River. While for many zooplankton community variables, effects occurred mainly during ebb and low‐water periods, some effects were also observed during high water and flood periods. We thus recommend the establishment of a permanent environmental monitoring programme during all hydrological periods in tropical floodplain rivers and the addition of sampling sites downstream from dams. Many rivers in the world are increasingly disrupted by multiple dams, yet little is known of their effects, especially for run‐of‐river dams. Our study identified short‐term impacts of only one run‐of‐river dam on zooplankton communities. More research is needed on the effects of multiple run‐of‐river dams on zooplankton and other biota, especially in tropical floodplain rivers, so that negative effects can be understood and ameliorated.

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“…Development of zooplankton in rivers is controlled by a still poorly understood mixture of abiotic and biotic factors varying seasonally and correlated to chemical and physical features of the rivers and physiographic conditions of their drainage basins (Thorp and Casper, 2002;Zhao et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

The Role of Environmental Factors in the Formation of Zooplankton in Tributaries of Lake Ladoga (Russia)

Курашов¹

2017

Appl. Ecol. Env. Res.

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Kurashov et al.: The role of environmental factors in the formation of zooplankton in tributaries of Lake Ladoga - Abstract. The role of environmental factors in the formation of zooplankton in tributaries of Lake Ladoga is still poorly investigated. The authors aimed at exploring composition and quantitative patterns of zooplankton development in the major tributaries of Ladoga and assessing the impact of environmental factors and features of river catchment basins on the parameters of zooplankton development. A total of 137 taxa ranking below genus were identified (56 species and subspecies of Rotifera, 57 of Cladocera, 24 of Copepoda). Species composition and patterns of quantitative development cannot be explained by any environmental factors or their combination. It is impossible to determine groups of rivers with similar patterns of zooplankton development basing on the composition and abundances of individual zooplankton species. River clustering based on hydrochemical and hydrological parameters and features of catchment basins provides an opportunity to distinguish groups of similar rivers. Total abundances of copepoda, cladocera, and rotifera in the rivers are closely associated with certain combinations of studied physiographic parameters. Physiographic factors, namely, the catchment basin area, water discharge, and lake percentage on the territory of the catchment basin, are the most important in the level of quantitative development of Copepoda, Rotifera, and Cladocera in tributaries of Lake Ladoga.

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Metacommunity structure of zooplankton in river networks: Roles of environmental and spatial factors

Cited by 82 publications

References 51 publications

Experimentally disentangling the influence of dispersal and habitat filtering on benthic invertebrate community structure

Experimentally disentangling the influence of dispersal and habitat filtering on benthic invertebrate community structure

Damming interacts with the flood pulse to alter zooplankton communities in an Amazonian river

The Role of Environmental Factors in the Formation of Zooplankton in Tributaries of Lake Ladoga (Russia)

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