Macroinvertebrate community structure and diversity in relation to environmental factors in wetlands of the lower Gilgel Abay River catchment, Ethiopia

Getnet, Habtamu; Mengistou, Seyoum; Warkineh, Bikila

doi:10.2989/16085914.2021.1946383

Cited by 2 publications

(4 citation statements)

References 27 publications

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“…A total of twelve wetlands (i.e., four wetlands from each wetland type) were selected (Supplementary Table S1). The riverine papyrus swamps sampled are mainly located in the lower reaches of the Gilgel Abay River and are dominated by papyrus (Cyperus papyrus) and other less dominant emergent vegetation (Getnet et al, 2021). With little grazing, settlement, or agricultural activity, these wetlands are characterized with >80% vegetation coverage (Wondie, 2018).…”

Section: Study Areamentioning

confidence: 99%

“…Wetlands also host exceptionally high levels of biodiversity, which is attributed to their high spatial and temporal environmental heterogeneity (Keddy et al, 2009). Wetlands are home to numerous organisms including phytoplankton and zooplankton species (hereafter: plankton) (D' Ambrosio et al, 2016;Gogoi et al, 2019), macroinvertebrates (Mereta et al, 2013;Gezie et al, 2019), aquatic plants (Getnet et al, 2021), fish (Aziz et al, 2021), amphibians (Nagel et al, 2021), waterbirds (Aynalem and Bekele, 2008;Chawaka et al, 2018a;Chawaka et al, 2018b), and mammals (Chatterjee and Bhattacharyya, 2021). Phytoplankton form the base of the food chain in aquatic ecosystems and play an important role in overall wetland productivity (Chengxue et al, 2019), while zooplankton are recognized as the main primary consumers.…”

Section: Introductionmentioning

confidence: 99%

“…Previous studies in the Lake Tana sub-basin were focused on the abundance and species richness of lake plankton (Dejen et al, 2004;Imoobe and Akoma, 2008;Gashaye, 2016;Melaku, 2017), fish, waterbirds, and mammals (Aynalem and Bekele, 2008;Mengistu, 2018;Zelelew and Archibald, 2021). Specifically for the wetlands in the subbasin, benthic invertebrates (Gezie et al, 2017;Gezie et al, 2019), fish (Anteneh et al, 2012), macrophytes (Getnet et al, 2021), and water-birds (Aynalem and Bekele, 2008) have been studied. The capacity of these systems for sediment and nutrient retention has also been investigated (Mucheye et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

“…This study is focused on river-connected riverine papyrus swamps, river mouth wetlands at the interface between river and lake, and lake-connected lacustrine wetlands (Hunegnaw et al, 2013;Aynalem et al, 2017;Getnet et al, 2021). These wetlands are characterized by seasonal water level variations, which are mostly caused by the unimodal rainfall pattern in the area (Jemberie et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

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Plankton Diversity in Tropical Wetlands Under Different Hydrological Conditions (Lake Tana, Ethiopia)

Kahsay

Lemmens

Triest

et al. 2022

Front. Environ. Sci.

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Plankton is an integral part of wetland biodiversity and plays a vital role in the functioning of wetlands. Diversity patterns of plankton in wetlands and factors structuring its community composition are poorly understood, albeit important for identifying areas for restoration and conservation. Here we investigate patterns in local and regional plankton richness and taxonomic and functional community composition in riverine papyrus swamps, river mouth wetlands, and lacustrine wetlands in the Lake Tana sub-basin, Ethiopia. Data on phytoplankton, zooplankton, and environmental variables were collected from 12 wetlands during the dry and wet seasons of 2018. Redundancy analysis, and linear mixed effect models, were used to investigate differences in local environmental conditions and variation in plankton community richness and composition between wetland types. We also assessed the ecological uniqueness of the plankton community by calculating the contribution of a single wetland: local contributions to overall beta diversity (LCBD) and contributions of individual species (SCBD) to overall beta diversity (BDTotal). Beta regression models were used to investigate the relationships of LCBD and SCBD to environmental variables, wetland, and taxa characteristics. A total of 85 phytoplankton taxa, distributed among 18 Reynolds functional groups, and 57 zooplankton taxa were observed over the entire set of samples. Local plankton taxon richness was significantly higher in riverine papyrus swamps (mean taxa of 30 phytoplankton and 21 zooplankton) compared to river mouth wetlands (mean taxa of 27 phytoplankton and 13 zooplankton). Several local environmental variables and the composition of the plankton community differed significantly between the three wetland types. The highest phytoplankton ecological uniqueness (LCBD) was detected in lacustrine wetlands, whereas the riverine papyrus swamps had the highest zooplankton ecological uniqueness. Based on our analyses, we recommend protecting the wetlands with high LCBD values and stress the importance of various wetland types for preserving the diverse plankton communities of Lake Tana wetlands.

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Section: Study Areamentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Plankton Diversity in Tropical Wetlands Under Different Hydrological Conditions (Lake Tana, Ethiopia)

Kahsay

Lemmens

Triest

et al. 2022

Front. Environ. Sci.

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From the Forest to the City: the Arrival of Dragonflies and Damselflies to the Urban Jungle

Suárez-Tovar

Rocha‐Ortega

Juen

et al. 2023

Preprint

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Can we predict which taxonomic groups and morphological or behavioral traits are favoured during urbanization? Here we have revised those odonate (dragonflies and damselflies) species are present in urban areas around world, their body size, body colour, sexual dimorphism, flight mode, habitat preference and mate guarding strategy. We wanted to know which of these traits are apparently favoure/ non-favoured in urban odonates. We found 88 urbanization-tolerant (Aeshnidae, Libellulidae and Coenagrionidae) and 87 urbanization-sensitive (Lestidae, Calopterygidae, Gomphidae) species. A phylogenetic path analysis showed that smaller dragonflies and damselflies species seem better adapted to urban environments. For dragonflies, yellow- or red-colored species as well as less sexually dimorphic were more frequent in urban areas. For damselflies species, those associated to lentic waters and with lesser mate guarding were more likely to use urban areas. We discuss the underlying physiological mechanisms linked to such urban-surviving ability as well as how we can use such information for conservation purposes. Indeed, it seems that odonates are well adapted to urbanization.

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Macroinvertebrate community structure and diversity in relation to environmental factors in wetlands of the lower Gilgel Abay River catchment, Ethiopia

Cited by 2 publications

References 27 publications

Plankton Diversity in Tropical Wetlands Under Different Hydrological Conditions (Lake Tana, Ethiopia)

Plankton Diversity in Tropical Wetlands Under Different Hydrological Conditions (Lake Tana, Ethiopia)

From the Forest to the City: the Arrival of Dragonflies and Damselflies to the Urban Jungle

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