Beyond masses and blooms: the indicative value of oligochaetes

Verdonschot, P.F.M.

doi:10.1007/1-4020-5368-1_13

Cited by 8 publications

(11 citation statements)

References 30 publications

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“…Naidine and pristinine worms are particularly numerous in such habitats because of their feeding behavior. Many of these worms consume detritus with bacteria and epiphytic algae (Timm et al, 2001;Verdonschot, 2006;Lin and Yo, 2008;Ohtaka et al, 2011;Timm, 2012;Potyutko, 2015;Yildiz, 2016;Ohtaka, 2018). The present research confirms that bottom sediments that are overgrown by macrophytes are important habitats for many naidid species (O. serpentina, Specaria josinae, S. lacustris, and all the species in the Nais genus except for N. elinguis, which is associated with unvegetated bottom sediments).…”

Section: Discussionsupporting

confidence: 74%

Impact of secondary salinisation on the structure and diversity of oligochaete communities

Sowa

Krodkiewska

2020

Knowl. Manag. Aquat. Ecosyst.

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Secondary salinisation has become one of the most important factors responsible for changes in the aquatic biota. Earlier research has focused on macroinvertebrates including oligochaetes in anthropogenically saline rivers and streams, but studies on oligochaetes in anthropogenically saline stagnant waters remain scarce. Therefore, this study was conducted to assess changes in the species composition as well as the abundance and biomass of oligochaete communities along a large salinity gradient in the anthropogenic inland water bodies located in the Upper Silesian Coal Basin (Southern Poland), which is one of the largest coal basins in Europe. Herein, a total of 27 oligochaete species including five alien species were assessed, namely, Potamothrix bavaricus, Potamothrix hammoniensis, Potamothrix moldaviensis, Psammoryctides albicola, and Psammoryctides barbatus. The results confirmed that the freshwater oligochaetes could tolerate elevated water salinity and showed highest densities and taxa richness in intermediate salinity. Moreover, the waters with the highest salinity had an extremely low number of oligochaete species. A salinity level above 2800 mg L−1 led to significant loss of diversity of the oligochaetes, and consequently, these habitats were colonized by halotolerant species, especially Paranais litoralis, whose abundance increased with increasing salinity gradient.

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Section: Discussionsupporting

confidence: 74%

Impact of secondary salinisation on the structure and diversity of oligochaete communities

Sowa

Krodkiewska

2020

Knowl. Manag. Aquat. Ecosyst.

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“…Shifts toward oligochaete‐dominated invertebrate communities are a common consequence of eutrophication, pesticide, and heavy metal pollution in aquatic ecosystems (Palmer , Wiederholm , Winner et al. , Paul and Meyer , Devine and Vanni , Verdonschot ). As regions of the world become increasingly urbanized, if the impacts of increased metal mobility, hypoxia, and nutrient loading on wetlands are not kept in check, shifts in aquatic invertebrate communities toward oligochaete dominance may become more widespread.…”

Section: Discussionmentioning

confidence: 99%

Pollution‐tolerant invertebrates enhance greenhouse gas flux in urban wetlands

Mehring

Cook

Evrard

et al. 2017

Ecological Applications

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Abstract. One of the goals of urban ecology is to link community structure to ecosystem function in urban habitats. Pollution-tolerant wetland invertebrates have been shown to enhance greenhouse gas (GHG) flux in controlled laboratory experiments, suggesting that they may influence urban wetland roles as sources or sinks of GHG. However, it is unclear if their effects can be detected in highly variable conditions in a field setting. Here we use an extensive data set on carbon dioxide (CO 2 ), methane (CH 4 ), and nitrous oxide (N 2 O) flux in sediment cores (n = 103) collected from 10 urban wetlands in Melbourne, Australia during summer and winter in order to test for invertebrate enhancement of GHG flux. We detected significant multiplicative enhancement effects of temperature, sediment carbon content, and invertebrate density on CH 4 and CO 2 flux. Each doubling in density of oligochaete worms or large benthic invertebrates (oligochaete worms and midge larvae) corresponded to~42% and~15% increases in average CH 4 and CO 2 flux, respectively. However, despite exceptionally high densities, invertebrates did not appear to enhance N 2 O flux. This was likely due to fairly high organic carbon content in sediments (range 2.1-12.6%), and relatively low nitrate availability (median 1.96 lmol/L NO 3 À -N), which highlights the context-dependent nature of community structural effects on ecosystem function. The invertebrates enhancing GHG flux in this study are ubiquitous, and frequently dominate faunal communities in impaired aquatic ecosystems. Therefore, invertebrate effects on CO 2 and CH 4 flux may be common in wetlands impacted by urbanization, and urban wetlands may make greater contributions to the total GHG budgets of cities if the negative impacts of urbanization on wetlands are left unchecked.

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“…A set of 35 environmental variables were measured and explored using a correlation matrix chart (command “chart.Correlation” in the “PerformanceAnalytics” package; Carl & Peterson, ; the analyses were performed in R, version 3.5.1, http://www.r-project.org). The least correlated ones were selected based on Spearman correlation ρ value ( ρ < |0.7|), and on their known ecological importance for aquatic clitellates (Martínez‐Ansemil & Collado, ; Rádková et al, ; Schenková et al, ; Timm et al, ; Verdonschot, , ). They included mineral richness, concentration of NO 3 , and dissolved oxygen in water, and amount of total organic carbon (TOC), organic matter content, and amount of inorganic substrate in substrate.…”

Section: Methodsmentioning

confidence: 99%

“…The impact of water temperature on clitellates has been less explored. So far, the influence of water temperature on aquatic clitellate assemblage composition was evaluated using single‐ or few‐time temperature records (Schwank, ; Timm, Seire, & Pall, ) or indirectly by the testing the effect of elevation (Martínez‐Ansemil & Collado, ; Verdonschot, ).…”

Section: Introductionmentioning

confidence: 99%

Climatically induced temperature instability of groundwater‐dependent habitats will suppress cold‐adapted Clitellata species

Schenková

Polášková

Bílková

et al. 2019

Internat Rev Hydrobiol

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Groundwater-dependent ecosystems are recognized as biodiversity hotspots, being, apart many negative human impacts, highly threatened also by ongoing climate warming. Clitellata (Annelida) are dominant invertebrates of permanent fauna in spring habitats, representing a heterogeneous group including both specialized coldstenothermic and ubiquitous eurythermic species. Therefore, they seem to be a good model group to compare the effects of local springwater temperature (recorded in situ by data loggers) and mesoclimate (i.e., local) air temperature. By the analysis of clitellate assemblages at 41 isolated Western Carpathian spring fens, we found that their species composition was significantly driven by mesoclimate air temperature and springwater temperature independently of other important environmental variables (i.e., water mineralization, oxygen content, and total organic carbon). The effect of various environment-related and temperature-related variables on the number of clitellate species was analyzed separately for two categories, that is, substrate dwellers (endobenthic species) and surface-active (epibenthic) species. The decrease of the number of species with the increasing amount of inorganic particles <500 µm in substrate was observed in the substrate dwellers. Mesoclimate air temperature had no significant effect on the number of species of substrate dwellers.However, water temperature, specifically its daily fluctuation, turned out to have a strong effect. Only the sites with no or moderate fluctuation were inhabited by coldstenotherm spring specialists and cold-water species. In contrast, no significant response to any temperature parameter was found for the number of surface-active species, which was driven only by other environmental variables. Our results suggest that climatically induced increase in temperature fluctuation of spring waters can result in notable reduction of cold-adapted clitellate species (mainly the family Lumbriculidae) at the expense of eurythermic species. Such a scenario predicts compositional changes leading to clitellate assemblages with a dominance of generalist and semi-aquatic species. K E Y W O R D Sclimate warming, clitellates, mesoclimate, spring fens, water temperature

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Beyond masses and blooms: the indicative value of oligochaetes

Cited by 8 publications

References 30 publications

Impact of secondary salinisation on the structure and diversity of oligochaete communities

Impact of secondary salinisation on the structure and diversity of oligochaete communities

Pollution‐tolerant invertebrates enhance greenhouse gas flux in urban wetlands

Climatically induced temperature instability of groundwater‐dependent habitats will suppress cold‐adapted Clitellata species

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