The importance of species replacement and richness differences in small-scale diversity patterns of aquatic macroinvertebrates in spring fens

Rádková, Vanda; Syrovátka, Vít; Bojková, Jindřiška; Schenková, Jana; Křoupalová, Vendula; Horsák, Michal

doi:10.1016/j.limno.2014.03.001

Cited by 20 publications

(20 citation statements)

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“…On the basis of extensive surveys of the western Carpathian fen plant and mollusc communities at 204 extant and pristine treeless spring fens (e.g. Horsák & Cernohorsky, ; Hájek et al ., ; Rádková et al ., ), we identified a target list of 48 fen sites across the Czech and Slovak republics (Fig. ).…”

Section: Methodsmentioning

confidence: 99%

“…Ilmonen et al ., ; Virtanen et al ., ; Lencioni et al ., ; Martin & Brunke, ; Spitale et al ., ). There have been few detailed studies of spring‐fen macroinvertebrates examining the main predictors of species composition, mesohabitat heterogeneity and among‐ and within‐site beta diversity (Křoupalová et al ., ; Omelková et al ., ; Rádková et al ., ). In general, the variation in species richness and its predictors in spring habitats remain virtually undescribed, because those studies that have dealt with this topic have focused on a comparison between various spring types (Lencioni et al ., ; Martin & Brunke, ).…”

Section: Introductionmentioning

confidence: 97%

“…However, no data exist on the differences in parameters that shape the species richness of habitat specialists and generalists in spring habitats. This topic remains poorly explored in aquatic systems generally, as only a few studies have focused on the role of environmental and spatial processes in structuring specialist and generalist metacommunity composition (Pandit et al ., ; Rádková et al ., ). As fens represent unique biodiversity hotspots of high conservation importance (Bedford & Godwin, ; Horsák & Cernohorsky, ) and are often inhabited by a large number of rare and endangered habitat specialists, such data might have both ecological and conservation applications.…”

Section: Introductionmentioning

confidence: 97%

“…We assumed that environmental and biogeographical parameters are of varying significance to the richness of species categorized in relation to their dispersal mode and habitat specialization. There is strong evidence that negligible relationships exist between spatial location and species composition of actively dispersing aquatic invertebrates, while passively dispersing aquatic invertebrates can exhibit significant spatial signals (Rádková et al ., ; and references therein). Environmental filters have been found to outweigh the role of spatial processes in structuring specialist assemblages, while the opposite is true for generalists (e.g.…”

Section: Introductionmentioning

confidence: 99%

“…Following published evidence on metacommunity composition structuring in headwater ecosystems (Brown & Swan, ; Grönroos et al ., ; Rádková et al ., ), we hypothesized that habitat specialization and dispersal capacity play an important role in shaping patterns of local species richness. We expected environmental conditions to be more important for actively dispersing species with adults capable of flight (e.g.…”

Section: Introductionmentioning

confidence: 99%

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Drivers of aquatic macroinvertebrate richness in spring fens in relation to habitat specialization and dispersal mode

Horsák

Rádková

Syrovátka

et al. 2015

Journal of Biogeography

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Aims The aim was to identify the main drivers of aquatic macroinvertebrate species richness in spring‐fen habitats (i.e. groundwater seepage wetlands) because these habitats are among the most threatened temperate biodiversity hotspots. Location Isolated spring fens in the western Carpathian Mountains. Methods Assemblages of Tricladida, Clitellata, Mollusca, Ephemeroptera, Plecoptera, Trichoptera and Diptera were sampled at 48 fens distributed evenly along a gradient of water mineral richness and grouped according to habitat specialization and dispersal mode. Several physicochemical parameters that have been reported to be the main drivers of species distribution were recorded for each site, along with radiocarbon measurements of the absolute age of the sites. The numbers of species in the taxonomic groups analysed were modelled as a function of the predictors via multiple linear regressions. Results We achieved a notably higher sampling efficiency than had been used in previous spring aquatic macroinvertebrate studies. In total, we collected and identified 255 species within 331 taxa from > 235,000 individuals. The number of species in all taxonomic groups increased with water discharge but the highest predictive power was obtained with water redox potential, which explained as much as 55.7% of the specialist species richness variance. We found contrasting and systematic differences in the importance of predictors related mainly to the level of species habitat specialization. Species richness of spring‐fen specialists was strongly determined by the main environmental gradient of change in groundwater chemistry, while generalists primarily reflected habitat stability linked to higher water discharge, habitat size and absolute age. Main conclusion Isolated island‐like spring fens can harbour unusually species‐rich assemblages of aquatic macroinvertebrates, the species richness of which is shaped by contrasting mechanisms dependent mainly on habitat specialization and also partly on dispersal mode. The richness of habitat specialist species seen at calcareous fens indicates their conservation priority.

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 97%

Section: Introductionmentioning

confidence: 97%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Drivers of aquatic macroinvertebrate richness in spring fens in relation to habitat specialization and dispersal mode

Horsák

Rádková

Syrovátka

et al. 2015

Journal of Biogeography

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Conservation of temporary streams: The relevance of spatiotemporal variation in beta diversity

Rodríguez‐Lozano,

Lobera,

Pardo

et al. 2023

Aquatic Conservation

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Temporary streams are affected by increasing human alterations, and this situation is expected to worsen under global change. Understanding biodiversity trends and the contribution of sites and species to β‐diversity is of high importance in establishing conservation priorities at a regional scale. This paper focuses on aquatic macroinvertebrate biodiversity in temporary streams on the island of Mallorca, using a space–time framework. Differences in α‐diversity, spatial–temporal fluctuations of β‐diversity, local contribution to β‐diversity (LCBD) and species contribution to β‐diversity (SCBD) were examined. Data analysis shows that only the space–time approach to β‐diversity can capture the full variation of macroinvertebrate composition in temporary streams. This confirmed our hypothesis that β‐diversity patterns are better explained by incorporating the temporal dimension to the space–time approach. Regarding β‐diversity components, species replacement components always dominate over richness difference. These results imply that β‐diversity variability is mainly caused by differences in species composition, while the relative difference in richness among sites has a minor role. Consequently, the optimal conservation strategy requires the protection of several undisturbed sites. Although the LCBD analysis did not detect any keystone sites, it helped to identify those sites that should be prioritized for restoration efforts (sites with high LCBD values and low α‐diversity). We also concluded that SCBD analysis should be interpreted carefully, as rare endemic species had low SCBD values. This study demonstrated the need for incorporating temporal variability in the analysis of biodiversity patterns in highly dynamic ecosystems, such as temporary streams. It also revealed the urgency of preserving a spatial network of temporary streams under non‐impaired conditions that can act as dispersal point sources to other streams for biodiversity conservation. These insights are relevant for Mallorca and other Mediterranean islands, and for the protection of temporary rivers elsewhere.

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Springs of Southeastern Serbia with a Focus on the Vlasina Plateau: Different Types of Challenges for the Macroinvertebrate Community

Savić

Đorđević

et al. 2021

Small Water Bodies of the Western Balkans

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The ecology of springs of the southeastern part of Serbia is poorly studied. The present chapter is planned as the first step towards the inventory and characterization of springs in this region. In this chapter we present the results of the investigation of macroinvertebrate communities of two groups of springs, in the valley of Niš and the Vlasina plateau, i.e. its surroundings. The investigated springs are distributed on a small spatial scale, but they are not from the same geological underground. The first group of springs is dominated by representatives of non-insect groups, while insects predominate in the springs of the Vlasina plateau. FFG analysis revealed scrappers as dominant organisms in the valley of Niš, while shredders predominated in the springs of the Vlasina region. The decisive drivers of macroinvertebrate A. Savić (B) • V. Ran -

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The importance of species replacement and richness differences in small-scale diversity patterns of aquatic macroinvertebrates in spring fens

Cited by 20 publications

References 37 publications

Drivers of aquatic macroinvertebrate richness in spring fens in relation to habitat specialization and dispersal mode

Drivers of aquatic macroinvertebrate richness in spring fens in relation to habitat specialization and dispersal mode

Conservation of temporary streams: The relevance of spatiotemporal variation in beta diversity

Springs of Southeastern Serbia with a Focus on the Vlasina Plateau: Different Types of Challenges for the Macroinvertebrate Community

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