Comparison of conservation values among man-made aquatic habitats using Odonata communities in Slovakia

Balázs, Attila; Šipoš, Ján; Matúšová, Zuzana; Hamerlík, Ladislav; Novikmec, Milan; Svitok, Marek

doi:10.1007/s11756-022-01129-0

Cited by 3 publications

References 57 publications

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What is more important for structuring Dragonfly assemblages in Subtropical Grasslands lentic water bodies in the Pampa biome: space or vegetation?

Vareira,

Ortega,

Juen

et al. 2023

Preprint

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For more than six decades, ecologists have been investigating how biological communities are structured and the implications for conservation. The Niche and Island Biogeography theories stand out as the basis for predictions related to diversity-environmental heterogeneity and diversity-area relationships, respectively. Although positive relationships are expected, the relative roles of environmental heterogeneity (EH) and area in structuring lentic water body assemblages are unclear for dragonflies. We sought to investigate the effects of area and EH, expecting that there would be a positive influence on dragonfly species richness and abundance. We sampled dragonfly adults for three months in 12 water bodies in the Pampa biome of Rio Grande do Sul, Brazil. We quantified water body area and vegetation, as an EH measure to evaluate how these predictors explained dragonfly species richness and abundance. We found that water body area, but not EH, was relevant to dragonfly diversity. This indicates that dragonflies may have perceived the vegetation as homogeneous and thus moved across the landscape without perceiving barriers that would hinder new habitat colonization. Therefore, the structure of water body dragonfly assemblages in Pampas grasslands was more influenced by water body area than environmental heterogeneity. Implication for insect conservation We highlight the relevance of tropical lentic water bodies in harboring species not registered yet, an important knowledge shortfall for biodiversity. We also found a high dragonfly diversity in large water bodies, which means that in managed landscapes the conservation of large areas is required to sustain this high diversity.

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What is more important for structuring Dragonfly assemblages in Subtropical Grasslands lentic water bodies in the Pampa biome: space or vegetation?

Vareira,

Ortega,

Juen

et al. 2023

Preprint

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Odonata Assemblages in Anthropogenically Impacted Habitats in the Drava River—A Long-Term Study

Vilenica

Mihaljević

2022

Water

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Lotic freshwater ecosystems are among the most threatened ecosystems worldwide due to the effects of multiple stressors, such as intensive land use in their catchments, morphological alterations, flow regulation, pollution, and climate change. Odonata are often used as valuable indicators of ecological integrity and anthropogenic disturbance of freshwater habitats. Here, we present the results of a study on Odonata assemblages in anthropogenically impacted habitats (hydropower plant reservoirs, tailrace canals, drainage ditches, and old river channels) conducted over a nine-year period. The negative impacts of anthropogenic activities on inhabiting biota were confirmed—with only 11 species recorded, the Odonata assemblages were species-poor and had low population densities. Although most species recorded were generalists, some species of national conservation concern were detected. Among the physico-chemical water parameters, the concentrations of ammonium, orthophosphates, nitrates, and mineral oils in the water were found to be the most important determinants of Odonata assemblages. The preservation of near-natural sites in the vicinity of anthropogenically impacted and man-made habitats is important for maintaining the local Odonata fauna and for the preservation of rare species. Our results highlight the importance of long-term data for determining the occurrence of Odonata species and monitoring their population dynamics.

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Ecological Assessment of a Tropical River Using Aquatic Insects Assemblage and Water Quality as Indicators

Omokunle

2023

Entomol Appl Sci Lett

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Comparison of conservation values among man-made aquatic habitats using Odonata communities in Slovakia

Cited by 3 publications

References 57 publications

What is more important for structuring Dragonfly assemblages in Subtropical Grasslands lentic water bodies in the Pampa biome: space or vegetation?

What is more important for structuring Dragonfly assemblages in Subtropical Grasslands lentic water bodies in the Pampa biome: space or vegetation?

Odonata Assemblages in Anthropogenically Impacted Habitats in the Drava River—A Long-Term Study

Ecological Assessment of a Tropical River Using Aquatic Insects Assemblage and Water Quality as Indicators

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