Can large branchiopods shape microcrustacean communities in Mediterranean temporary wetlands?

Waterkeyn, Aline; Grillas, Patrick; Antón-Pardo, María; Vanschoenwinkel, Bram; Brendonck, Luc

doi:10.1071/mf10147

Cited by 25 publications

(26 citation statements)

References 29 publications

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“…These results confirm the hypotheses posed in previous studies (Waterkeyn et al, 2010(Waterkeyn et al, , 2011bCroel & Kneitel, 2011) that notostracans could act as ecosystem engineers and promote a shift from a clear water to a turbid state. They can not only cause changes in the composition of crustacean and macrophyte communities but also affect water quality through bioturbation.…”

Section: Ecosystem Impactsupporting

confidence: 92%

“…Several other studies have also reported increased turbidity levels in the presence of tadpole shrimp (Yee et al, 2005;Croel & Kneitel, 2011;Waterkeyn et al, 2011b). Several other studies have also reported increased turbidity levels in the presence of tadpole shrimp (Yee et al, 2005;Croel & Kneitel, 2011;Waterkeyn et al, 2011b).…”

Section: Discussionmentioning

confidence: 90%

“…Usually, notonectids and odonates are attributed the role of top predators in these ecosystems (Brendonck et al, 2002). They can consume zooplankton very efficiently (Christoffersen, 2001;Waterkeyn et al, 2011b) and even prey upon dormant eggs buried in the sediment (Waterkeyn et al, 2011c). They can consume zooplankton very efficiently (Christoffersen, 2001;Waterkeyn et al, 2011b) and even prey upon dormant eggs buried in the sediment (Waterkeyn et al, 2011c).…”

Section: Introductionmentioning

confidence: 99%

“…E-mail: aline.waterkeyn@bio.kuleuven.be food or to deposit their eggs (Pont & Vaquer, 1986), they are also responsible for bioturbation (Yee et al, 2005;Croel & Kneitel, 2011;Waterkeyn et al, 2011b). Since they spend most of their time digging through the sediment in search for Correspondence: Aline Waterkeyn, Laboratory of Aquatic Ecology, Evolution and Conservation, Charles Deberiotstraat 32, 3000 Leuven, Belgium.…”

Section: Introductionmentioning

confidence: 99%

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Experimental test of the ecosystem impacts of the keystone predator Triops cancriformis (Branchiopoda: Notostraca) in temporary ponds

2016

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Summary Keystone species can influence an ecosystem through a series of trophic (both direct and indirect) and non‐trophic effects. In temporary ponds, tadpole shrimps were recently identified as keystone predators, but the full extent of their ecosystem impact is still poorly known. Using a large‐scale mesocosm experiment, we quantified the impact of different Triops cancriformis densities on ecosystem properties: water quality (including chlorophyll a as measure for phytoplankton biomass) and the diversity and structure of macrophyte and zooplankton communities. Mesocosms of 400 L (1 m2 surface) were lined with natural pond sediment of two study ponds differing in their natural Triops densities (Triops‐rich and Triops‐poor pond) and inundated to allow hatching from the egg bank. Afterwards, four Triops density treatments were established in the mesocosms: 0 (control), 5, 25 and 100 Triops per m2. After 13 weeks, the two highest Triops densities significantly influenced the ecosystem functioning not only by triggering changes in the diversity and composition of the pond communities but also by affecting water quality through bioturbation. These results confirm that tadpole shrimp can function as ecosystem engineers in temporary ponds and could promote a shift from a clear water to a turbid state through a series of trophic and non‐trophic level effects.

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Section: Ecosystem Impactsupporting

confidence: 92%

Section: Discussionmentioning

confidence: 90%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Experimental test of the ecosystem impacts of the keystone predator Triops cancriformis (Branchiopoda: Notostraca) in temporary ponds

2016

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“…Anostracans can reach high densities in their habitats (Daborn, 1977;Horváth, Vad, Vörös, et al, 2013b;Vanschoenwinkel, Brendonck, Pinceel, Dupriez, & Waterkeyn, 2013; and they act both as competitors and predators of smaller zooplankton (Jocque, Vanschoenwinkel, & Brendonck, 2010;Lukić et al, 2018;Waterkeyn et al, 2011), which suggests a high impact on the zooplankton community. Anostracans can reach high densities in their habitats (Daborn, 1977;Horváth, Vad, Vörös, et al, 2013b;Vanschoenwinkel, Brendonck, Pinceel, Dupriez, & Waterkeyn, 2013; and they act both as competitors and predators of smaller zooplankton (Jocque, Vanschoenwinkel, & Brendonck, 2010;Lukić et al, 2018;Waterkeyn et al, 2011), which suggests a high impact on the zooplankton community.…”

Section: Effect Of Anostracans On the Community As An Ig Predatormentioning

confidence: 99%

Environmental constraint of intraguild predation: Inorganic turbidity modulates omnivory in fairy shrimps

et al. 2019

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1. Omnivory is widespread in food webs, with an important stabilising effect.The strength of omnivorous trophic interactions may change considerably with changes in the local environment.2. Shallow temporary waters are often characterised by high levels of inorganic turbidity that may directly limit the food uptake of filter-feeding organisms, but there is little evidence on how it might affect omnivorous species. Anostracans are key species of temporary waters and recent evidence suggests that these organisms are omnivorous consumers of both phyto-and zooplankton.3. Using Branchinecta orientalis as a model species, our aim was to test how turbidity affects the feeding of an omnivorous anostracan. To do this, we used short-term feeding experiments and stable isotope analyses, with animals collected from soda pans in eastern Austria. In the feeding experiments, algae and zooplankton were offered as food either separately or in combination. The prey type treatments were crossed with turbidity levels in a factorial design.4. There was a pronounced decrease in the ingested algal biomass with increasing turbidity. Conversely, ingestion rates on zooplankton were less affected by turbidity. Stable isotope analyses from field material supported our experimental results by showing a positive relationship of the trophic position of anostracans and the trophic niche of the communities with turbidity. 5. Our results show that turbidity modulates the intraguild trophic relationship between anostracans and their prey by shifting the diet of anostracans from more herbivorous in transparent to more carnivorous in turbid waters. Thus, inorganic turbidity might also have a community-shaping role in plankton communities of temporary waters through altering trophic relationships. K E Y W O R D Sanostracans, phytoplankton, temporary ponds, trophic webs, zooplankton | 227 LUKIĆ et aL.

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Zooplankton of the European soda pans: Fauna and conservation of a unique habitat type

Tóth

Horváth

Vad

et al. 2014

Internat. Rev. Hydrobiol.

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Despite the high conservation value of intermittent soda pans, these habitats were mostly targeted by small‐scale studies and little is known about their microscopic fauna. We sampled all the remaining 110 representatives of this habitat type (including recently restored ones) in Europe in an area covering approximately 125 000 km2. We analyzed spring and summer zooplankton species composition including rotifers, copepods, and cladocerans. We found 105 Rotifera, 26 Cladocera, and 26 Copepoda taxa, with local species richness ranging between 1 and 38 taxa. Alpha diversity was comparable in the two main groups (Rotifera, Crustacea), while beta and gamma diversity was higher in rotifers. The most frequently occurring zooplankters were crustaceans, while rotifer taxa were rarer as the most frequent species inhabited less than half of the pans. Dominance of the natronophilic Arctodiaptomus spinosus proved to be a reliable indicator for high quality soda pans. We concluded that the most typical soda pan zooplankton communities developed by early summer, in the concentrated pans, thus we would suggest considering this period as a reference for ecological state monitoring, and especially for evaluating the success of soda pan rehabilitations or reconstructions with the help of zooplankton. Based on these criteria, restorations could be considered only moderately successful.

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Can large branchiopods shape microcrustacean communities in Mediterranean temporary wetlands?

Cited by 25 publications

References 29 publications

Experimental test of the ecosystem impacts of the keystone predator Triops cancriformis (Branchiopoda: Notostraca) in temporary ponds

Experimental test of the ecosystem impacts of the keystone predator Triops cancriformis (Branchiopoda: Notostraca) in temporary ponds

Environmental constraint of intraguild predation: Inorganic turbidity modulates omnivory in fairy shrimps

Zooplankton of the European soda pans: Fauna and conservation of a unique habitat type

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