Relationships between aquatic invertebrate assemblages and environmental quality on saline wetlands of an arid environment

Colombetti, Patricia Laura; Calderón, Mirian Roxana; Tello, Jesica Alejandra; González, Pedro Horacio; Jofré, Mariana Beatriz

doi:10.1016/j.jaridenv.2020.104245

Cited by 7 publications

(3 citation statements)

References 31 publications

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“…Several natural ecosystems worldwide are currently threatened by soil salinization to an extent where they no longer can provide ecosystem services in quality and quantity [15,27,28]. There are a wide variety of ecosystems where fauna and flora are well adapted to salinity conditions [74][75][76][77][78][79][80]. However, increased salinization may lead to the disruption of the ecosystem itself or neighbouring ecosystems [81][82][83][84][85].…”

Section: Salinization Threatened Ecosystems and Plant Salt-tolerance Mechanismsmentioning

confidence: 99%

Cyanobacteria as a Nature-Based Biotechnological Tool for Restoring Salt-Affected Soils

et al. 2020

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Soil salinization poses an important threat to terrestrial ecosystems and is expected to increase as a consequence of climate change and anthropogenic pressures. Conventional methods such as salt-leaching or application of soil amendments, or nature-based solutions (NBSs) such as phytoremediation, have been widely adopted with contrasting results. The use of cyanobacteria for improving soil conditions has emerged as a novel biotechnological tool for ecosystem restoration due to the unique features of these organisms, e.g., ability to fix carbon and nitrogen and promote soil stabilisation. Cyanobacteria distribute over a wide range of salt concentrations and several species can adapt to fluctuating salinity conditions. Their application in agricultural saline soil remediation has been demonstrated, mostly in laboratory studies, but there is a lack of research regarding their use in natural ecosystems restoration. In this article, we provide an overview of the current knowledge on cyanobacteria in the context of ecosystem restoration. Examples of the application of cyanobacteria in alleviating salt-stress in plants and soils are presented. Furthermore, we acknowledge gaps regarding the extensive application of cyanobacteria in salt-affected soils remediation and discuss the challenges of NBSs in salt-affected soils restoration.

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Section: Salinization Threatened Ecosystems and Plant Salt-tolerance Mechanismsmentioning

confidence: 99%

Cyanobacteria as a Nature-Based Biotechnological Tool for Restoring Salt-Affected Soils

et al. 2020

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“…Spatial changes in diet have been commonly found in non-native populations of pumpkinseed reflecting foraging plasticity and changes in local prey supply (Almeida et al, 2009;Gkenas et al, 2016). This may also be the case in the Draa River, where the elevational gradient in diet composition probably reflects changes in richness and abundance of macroinvertebrates, and the decrease of Ephemeroptera, Heteroptera and Trichoptera and dominance of tolerant Chironomidae under more dry and salty conditions (Moreno et al, 2010;Colombetti et al, 2020). It is also possible that variation in diet can at least partially be associated with changes in prey availability under more stable environmental conditions prevailing in the dam (D1), as found in other studies (Almeida et al, 2009).…”

mentioning

confidence: 95%

Desert pumpkinseed: diet composition and breadth in a Moroccan river

Gkenas

Magalhães

Campos-Martin

et al. 2021

Knowl. Manag. Aquat. Ecosyst.

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The widely invasive North American pumpkinseed sunfish, Lepomis gibbosus, is currently established in desert rivers in Morocco. The success of pumpkinseed in novel ecosystems has been associated with its generalist diet, but this trait remains unevaluated in arid regions. Desert rivers are harsh environments with limited water and prey availability which may adversely constrain the diet of fish. Here we studied the diet of pumpkinseed across 4 sites in the Draa River, embracing a 450 m elevational gradient covering from extremely dry lowlands to relatively humid highlands. We described pumpkinseed diet through the analysis of stomach contents of 82 individuals, collected in the fall of 2013. Pumpkinseed diet was dominated by Chironomidae in dry lowlands, while Ephemeroptera, Heteroptera, Trichoptera and Odonata were relevant prey in more humid highlands. Population diet breadth expanded with elevation, but individual specialization in diet was low among all sites. Our results highlight considerable changes in diet composition and breadth with aridity, suggesting that feeding plasticity and use of exclusive, locally abundant prey rather than generalized feeding may be associated with the success of pumpkinseed in most arid areas in desert rivers.

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“…High mountain wetland biota is sensitive to climate change and is therefore used as sentinel of climate change (Oertli et al, 2008; Theurillat & Guisan, 2001; Thuillier et al, 2005) and to detect the effects of land use on biotic communities (Akasaka et al, 2010; Epelé & Miserendino, 2015). Because invertebrates are good indicators of climate change and water pollution, they are often used as bioindicators of water quality in diverse freshwater systems (Biggs et al, 2005; Colombetti et al, 2020; Darrah et al, 2019; Dorche et al, 2019; Nguyen et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

Macroinvertebrate communities in high mountain desert wetlands: Building biological indexes to address the vulnerability of species and communities

Scheibler

Montemayor

Melo

2022

Insect Conserv Diversity

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1. Andean wetlands in arid climates are isolated ecosystems surrounded by steep terrain and have crucial relevance as a water resource. The species inhabiting them are adapted to these habitats and vulnerable to environmental changes. 2. The aim of this study is to evaluate the vulnerability of invertebrate aquatic species to climate change and organic pollution through an index adapted from the species distributional models (SDM) score [vulnerability of aquatic invertebrate species index (Vais)], and the vulnerability of the invertebrate communities through an index developed herein [wetland community vulnerability index (Wcv)].3. The Vais index ranges from 1 (highly vulnerable) to 0 (non-vulnerable species). It was calculated for 22 species of the orders Coleoptera, Ephemeroptera, Hemiptera, and Odonata. According to our results, the most vulnerable species belong to the orders Ephemeroptera (2) and Odonata (8) (scores 0.63-0.76); species with medium vulnerability belong to the orders Coleoptera (1) Ephemeroptera (1), Hemiptera (4) and Odonata (1) (scores 0.43-0.54); and the most tolerant species belong to the orders Coleoptera (2) and Hemiptera (3) (0.31-0.29).4. The Wcv index was calculated for 31 communities in Andean wetlands. Lower Wcv values correspond to less vulnerable communities and higher values to more vulnerable communities. According to our results, communities can be divided into three groups: the most vulnerable (scores 0.61-0.71), the ones with medium vulnerability (scores 0.49-0.59), and the least vulnerable (scores 0.33-0.48).5. The Vais and Wcv indexes are useful tools for evaluating the vulnerability of aquatic species and wetland communities, providing valuable information for defining conservation strategies.

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Relationships between aquatic invertebrate assemblages and environmental quality on saline wetlands of an arid environment

Cited by 7 publications

References 31 publications

Cyanobacteria as a Nature-Based Biotechnological Tool for Restoring Salt-Affected Soils

Cyanobacteria as a Nature-Based Biotechnological Tool for Restoring Salt-Affected Soils

Desert pumpkinseed: diet composition and breadth in a Moroccan river

Macroinvertebrate communities in high mountain desert wetlands: Building biological indexes to address the vulnerability of species and communities

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