Macroinvertebrate diversity within pan wetlands in relation to geological type and hydroperiod in a protected subtropical Austral national park DOI Creative Commons

Elsie N. Leshaba,

Timothy Dube, Farai Dondofema

et al.

Chemistry and Ecology, Journal Year: 2025, Volume and Issue: unknown, P. 1 - 23

Published: March 5, 2025

Despite their small size, wetland pan systems play a crucial role as habitats for diverse aquatic biota. Macroinvertebrate diversity across 12 wetlands in relation to geological type (i.e. sandstone, granite, basalt and rhyolite) hydroperiod high, low) protected subtropical national park South Africa was studied. Water temperature, pH, TDS, conductivity, phosphates salinity showed significant differences among hydroperiods, with types being observed water temperature ammonium. Most of the sediment variables were found be hydroperiods types. 5145 macroinvertebrate individuals belonging 41 genera 9 orders identified. Macroinvertebrates during high abundant low hydroperiod. The canonical correspondence analysis explained 35.8% fitted cumulative variation community structure environmental different This study aimed provide better understanding how they are influenced by hydroperiod, this information is it aids providing management options refuge taxa area protection these wetlands.

Language: Английский

Heavy metals and metalloid in aquatic invertebrates: A review of single/mixed forms, combination with other pollutants, and environmental factors DOI
Haksoo Jeong, Eunjin Byeon, Duck‐Hyun Kim

et al.

Marine Pollution Bulletin, Journal Year: 2023, Volume and Issue: 191, P. 114959 - 114959

Published: May 3, 2023

Language: Английский

Citations

61

Rising water temperature in rivers: Ecological impacts and future resilience DOI Creative Commons
Matthew F. Johnson, Lindsey K. Albertson, Adam C. Algar

et al.

Wiley Interdisciplinary Reviews Water, Journal Year: 2024, Volume and Issue: 11(4)

Published: March 5, 2024

Abstract Rising water temperatures in rivers due to climate change are already having observable impacts on river ecosystems. Warming has both direct and indirect aquatic life, further aggravates pervasive issues such as eutrophication, pollution, the spread of disease. Animals can survive higher through physiological and/or genetic acclimation, behavioral phenological change, range shifts more suitable locations. As such, those animals that adapted cool‐water regions typically found high altitudes latitudes where there fewer dispersal opportunities most at risk future extinction. However, sub‐lethal animal physiology phenology, body‐size, trophic interactions could have significant population‐level effects elsewhere. Rivers vulnerable warming because historic management left them exposed solar radiation removal riparian shade, hydrologically disconnected longitudinally, laterally, vertically. The resilience riverine ecosystems is also limited by anthropogenic simplification habitats, with implications for resource use resident organisms. Due complex ecosystems, species‐specific response organisms warming, predicting how will challenging. Restoring provide connectivity heterogeneity conditions would a expected co‐occurring pressures, including should be considered priority part global strategies adaptation mitigation. This article categorized under: Science Water > Environmental Change Life Nature Freshwater Ecosystems Stresses Pressures

Language: Английский

Citations

34

Toxic effects of triclosan in aquatic organisms: A review focusing on single and combined exposure of environmental conditions and pollutants DOI
Jin-Sol Lee, Jae‐Seong Lee, Hyung Sik Kim

et al.

The Science of The Total Environment, Journal Year: 2024, Volume and Issue: 920, P. 170902 - 170902

Published: Feb. 12, 2024

Language: Английский

Citations

18

Forest restoration improves habitat and water quality in tropical streams: A multiscale landscape assessment DOI
Paula C. dos Reis Oliveira,

Gabriel Arantes Ferreira Gualda,

Graziano Rossi

et al.

The Science of The Total Environment, Journal Year: 2025, Volume and Issue: 963, P. 178256 - 178256

Published: Jan. 17, 2025

Language: Английский

Citations

3

Seasonal different effects of land cover on urban heat island in Wuhan's metropolitan area DOI

Shihui Yuan,

Zhigang Ren, Xiaofang Shan

et al.

Urban Climate, Journal Year: 2023, Volume and Issue: 49, P. 101547 - 101547

Published: April 27, 2023

Language: Английский

Citations

36

Scales matter: regional environment factors affect α diversity but local factors affect β diversity of macroinvertebrates in Thousand Islands Lake catchment area DOI Creative Commons

Zongwei Lin,

Guohao Liu, Kun Guo

et al.

Ecological Indicators, Journal Year: 2024, Volume and Issue: 158, P. 111561 - 111561

Published: Jan. 1, 2024

A more profound comprehension of various facets biodiversity is essential for advancing sustainable governance and its associated ecosystem services. In this study, we delved into the composition beta diversity within macroinvertebrates communities in Thousand Islands Lake catchment area. Subsequently, investigated factors influencing diverse alpha diversity, ultimately employed structural equation modeling to analyze pathways through which both regional environmental factors, like climate land use, local variables collectively impact distinct ecosystem. Our results showed that (i) taxonomic phylogenetic diversities were primarily determined by turnover, while functional predominantly nestedness; (ii) are influenced spatial variables, with environment ranking second, use explaining lowest proportion according variance partitioning; (iii) mainly affected especially climatic (precipitation) hydrological (depth) revealed modeling. These offer compelling evidence composition, ecological drivers, specific influence vary across different scales. Future studies could focus on as well consider effects at scales, would provide new insights potential patterns community associations.

Language: Английский

Citations

13

The relationships between biotic uniqueness and abiotic uniqueness are context dependent across drainage basins worldwide DOI Creative Commons
Henna Snåre, Jorge García–Girón, Janne Alahuhta

et al.

Landscape Ecology, Journal Year: 2024, Volume and Issue: 39(4)

Published: April 5, 2024

Abstract Context Global change, including land-use change and habitat degradation, has led to a decline in biodiversity, more so freshwater than terrestrial ecosystems. However, the research on freshwaters lags behind marine studies, highlighting need for innovative approaches comprehend biodiversity. Objectives We investigated patterns relationships between biotic uniqueness abiotic environmental drainage basins worldwide. Methods compiled high-quality data aquatic insects (mayflies, stoneflies, caddisflies at genus-level) from 42 spanning four continents. Within each basin we calculated (local contribution beta diversity, LCBD) of insect assemblages, types heterogeneity, LCEH), categorized into upstream land cover, chemical soil properties, stream site landscape position, climate. A mixed-effects meta-regression was performed across examine variations strength LCBD-LCEH relationship terms latitude, human footprint, major continental regions (the Americas versus Eurasia). Results On average, LCBD LCEH were weak. direction varied among basins. Latitude, footprint index, or location did not explain significant variation relationship. Conclusions detected strong context dependence Varying conditions gradient lengths basins, historical contingencies, stochastic factors may these findings. This underscores basin-specific management practices protect biodiversity riverine systems.

Language: Английский

Citations

9

Combined stress of an insecticide and heatwaves or elevated temperature induce community and food web effects in a Mediterranean freshwater ecosystem DOI Creative Commons
Markus Hermann, Francesco Polazzo, Laura Cherta

et al.

Water Research, Journal Year: 2024, Volume and Issue: 260, P. 121903 - 121903

Published: June 6, 2024

Ongoing global climate change will shift nature towards Anthropocene's unprecedented conditions by increasing average temperatures and the frequency severity of extreme events, such as heatwaves. While climatic changes pose an increased threat for freshwater ecosystems, other stressors like pesticides may interact with warming lead to unpredictable effects. Studies that examine underpinned mechanisms multiple stressor effects are scarce often lack environmental realism. Here, we conducted a experiment using outdoor mesocosms natural assemblages macroinvertebrates, zooplankton, phytoplankton, macrophytes, microbes. The neonicotinoid insecticide imidacloprid (1 µg/L) were investigated in combination three temperature scenarios representing ambient, elevated (+4°C), heatwaves (+0 8°C), latter two having similar energy input. We found dissipation patterns all treatments lowest half-lives under both (DT50: 3 days) highest ambient 4 throughout experiment. Amongst communities, only zooplankton community was significantly affected combined treatments. This demonstrated low chemical sensitivity lagged significant negative cyclopoids. Heatwaves caused early long-lasting on compared temperatures, Polyarthra, Daphnia longispina, Lecanidae, cyclopoids being most negatively taxa, whereas Ceriodaphnia nauplii showed positive responses temperature. Community recovery from stress slower heatwaves, suggesting temperature-enhanced toxicity. Finally, microbial macrofauna litter degradation enhanced temperature, also imidacloprid. A structural equation model depicted cascading food web stronger relationships at higher than lower trophic levels. Our study highlights series imidacloprid-stressed freshwaters.

Language: Английский

Citations

9

Impacts of watershed and meteorological characteristics on stream water quality resilience DOI
Yujin Park,

Se-Rin Park,

Sang‐Woo Lee

et al.

Journal of Hydrology, Journal Year: 2025, Volume and Issue: 652, P. 132663 - 132663

Published: Jan. 7, 2025

Language: Английский

Citations

1

Climate change is poised to alter mountain stream ecosystem processes via organismal phenological shifts DOI Creative Commons
Kyle Leathers, David B. Herbst, Guillermo de Mendoza

et al.

Proceedings of the National Academy of Sciences, Journal Year: 2024, Volume and Issue: 121(14)

Published: March 18, 2024

Climate change is affecting the phenology of organisms and ecosystem processes across a wide range environments. However, links between organismal process in complex communities remain uncertain. In snow-dominated watersheds, snowmelt spring early summer, followed by long low-flow period, characterizes natural flow regime streams rivers. Here, we examined how earlier will alter mountain stream via an outdoor mesocosm experiment channels Eastern Sierra Nevada, California. The treatment, simulating 3- to 6-wk return summer baseflow conditions projected under climate scenarios region, increased water temperature reduced biofilm production respiration ratios 32%. Additionally, most invertebrate species explaining community (56% 67% benthic emergent taxa, respectively), changed as consequence treatment. Further, flux pulses dominant insect group (Chironomidae) almost doubled magnitude, benefitting generalist riparian predator. Changes both structure (composition) functioning (production) were mostly fine-scale, response diversity at level stabilized seasonally aggregated responses. Our study illustrates vulnerable rain-to-snow transition poised dynamics food webs fine-scale changes phenology—leading novel predator–prey “matches” or “mismatches” even when appear stable annual scale.

Language: Английский

Citations

8