The effect of urbanization on freshwater macroinvertebrates – Knowledge gaps and future research directions

Ecological Indicators, Journal Year: 2019, Volume and Issue: 104, P. 357 - 364

Published: May 15, 2019

Language: Английский

---

Functional responses of aquatic invertebrates to anthropogenic stressors in riparian zones of Neotropical savanna streams

The Science of The Total Environment, Journal Year: 2020, Volume and Issue: 753, P. 141865 - 141865

Published: Aug. 22, 2020

Language: Английский

---

Impacts of multiple anthropogenic stressors on stream macroinvertebrate community composition and functional diversity

Ecology and Evolution, Journal Year: 2020, Volume and Issue: 11(1), P. 133 - 152

Published: Dec. 16, 2020

Ensuring the provision of essential ecosystem services in systems affected by multiple stressors is a key challenge for theoretical and applied ecology. Trait-based approaches have increasingly been used multiple-stressor research freshwaters because they potentially provide powerful method to explore mechanisms underlying changes populations communities. Individual benthic macroinvertebrate traits associated with mobility, life history, morphology, feeding habits are often determine how environmental drivers structure stream However, date on invertebrates has focused more taxonomic than functional metrics. We conducted fully crossed, 4-factor experiment 64 mesocosms fed pristine montane (21 days colonization, 21 manipulations) investigated effects nutrient enrichment, flow velocity reduction sedimentation invertebrate community, taxon, diversity trait variables after 2 3 weeks stressor exposure. 89% community metrics, 59% common taxa, 50% 79% responded at least one each. Deposited fine sediment had strongest impacts, affecting abundances diversity, their translated into redundancy. Stressor varied between sampling occasions, further complicating prediction Overall, our study suggests that future combining trait, assessments can improve understanding interactions running waters.

Language: Английский

---

A synthesis of land use impacts on stream biodiversity across metrics and scales

Ecology, Journal Year: 2021, Volume and Issue: 102(11)

Published: July 27, 2021

Abstract While land use intensification is a major driver of biodiversity change in streams, the nature such changes, and at which scales they occur, have not been synthesized. To synthesize how has altered multiple components stream across scales, we compiled data from 37 studies where comparative were available for species' total relative abundances locations including reference (less impacted) streams to those surrounded by different types (urban, forestry, agriculture). We found that each type reduced within‐stream but urbanization consistently had strongest effects. However, β‐diversity among modified landscapes did differ observed suggesting little evidence biotic homogenization. Nevertheless, assemblage composition experience considerable species turnover between streams. Our results emphasize understand anthropogenic factors as alter biodiversity, within sites must be simultaneously considered scales.

Language: Английский

---

The impacts of different seasons on macroinvertebrate community structure and functional diversity in the Jingui River, China

Global Ecology and Conservation, Journal Year: 2024, Volume and Issue: 51, P. e02876 - e02876

Published: March 2, 2024

Species diversity and functional indices reflect the variations of community structure their responses to environmental stress. This study clarifies biodiversity macroinvertebrates in Jingui River Shenzhen response aquatic environment across different seasons. Utilizing ten traits, we conducted a seasonal survey at sampling points examine changes macroinvertebrate species diversity, along with relationships variables JGR. The results demonstrated that were significantly affected by season. Redundancy analysis indicated water velocity, hydrogen ion concentration, turbidity, depth, total nitrogen most important factors for diversity. Moreover, structural equation modeling nitrogen, ammonia nitrate conductivity, concentration directly or indirectly impacted macroinvertebrates. provides valuable information into variation characteristics communities, contributing more comprehensive understanding crucial maintaining river ecosystem functioning stability.

Language: Английский

---

The drivers of multiple dimensions of stream macroinvertebrate beta diversity across a large montane landscape

Limnology and Oceanography, Journal Year: 2020, Volume and Issue: 66(1), P. 226 - 236

Published: Sept. 23, 2020

Abstract Environmental filtering and spatial processes have been associated with variation in ecological communities biodiversity; however, their relative importance on multiple dimensions of beta diversity has not fully explored montane streams. Here, we examined the contribution local, catchment climate environmental variables factors to three macroinvertebrate upper Han River Basin. Taxonomic, functional, phylogenetic diversities respective turnover nestedness components were calculated for assemblages sampled a total 130 stream sites across large mountainous landscape. We investigated correlations between facets using MSR‐Mantel procedure then influence each set through redundancy analysis variance partitioning. Our results revealed relatively low congruence among dimensions, indicating these are independent measures which offer complementary information community assembly. Beta best explained by local factors, whereas large‐scale appeared less influential. Moreover, generally exerted different controls depending under consideration. Taxonomic more strongly determined via dispersal limitation, while functional was mainly environments habitat filtering. challenge perspective that one facet as surrogate others is enough, highlight need integrate metacommunity biodiversity research.

Language: Английский

---

The role of environmental conditions, climatic factors and spatial processes in driving multiple facets of stream macroinvertebrate beta diversity in a climatically heterogeneous mountain region

Ecological Indicators, Journal Year: 2021, Volume and Issue: 124, P. 107407 - 107407

Published: Jan. 27, 2021

There is a growing recognition that examining patterns of ecological communities and their underlying determinants not only feasible based on taxonomic data, but also functional phylogenetic approaches. This because these additional facets can enhance the understanding relative contribution multiple processes in shaping biodiversity. However, few studies have focused multifaceted beta diversities lotic macroinvertebrates, especially when considering driving factors operating at spatial scales. Here, we examined multi-faceted (i.e., taxonomic, phylogenetic) diversity components turnover nestedness) macroinvertebrates 50 sites 10 streams situated north south slope Qinling Mountains, geographical dividing line Northern Southern China. We found draining showed significantly lower values all three than slope. Such north-to-south increases were caused by distinct climatic local environmental conditions between sides mountain range. Moreover, variables generally played most important role structuring diversity, followed variables, whereas catchment less important. Despite similar results explanatory each facet, details community-environment relationships (e.g., power) among different components. In conclusion, measuring provides complementary information to traditional approach. Therefore, an integrative approach embracing better reveal mechanisms biodiversity, which essential assessing valuing aquatic ecosystems for biodiversity management conservation.

Language: Английский

---

Human-induced loss of functional and phylogenetic diversity is mediated by concomitant deterministic processes in subtropical aquatic insect communities

Ecological Indicators, Journal Year: 2022, Volume and Issue: 136, P. 108600 - 108600

Published: Feb. 7, 2022

Under a global change scenario, human-induced impacts alter multiple facets of river biodiversity (i.e., taxonomic, functional and phylogenetic). Hence, focusing on changes in community assembly different diversity dimensions along anthropogenic impact gradients is paramount importance for ecological research. Here, we classified stream sites into near-pristine (NP), moderately impacted (MI) highly (HI) categories based comprehensive score the Hanjiang River Basin (China), tested differences patterns (FD) phylogenetic (PD). Our study suggests that NP showed higher FD PD than streams (MI HI), with their communities being phylogenetically overdispersed mostly shaped by random processes. Anthropogenically harbored closely related functionally similar species, although degree clustering varied between NP, MI HI streams, thereby confirming predictions human activities contribute to loss evolutionary history space running waters. Importantly, identified influence underlying deterministic mechanisms homogenization both diversity. Similarly, exhibited greatest proportion evolutionarily distinct lineages, suggesting also threaten unique clades. Overall, this contributed better understanding aquatic insect generating new empirical evidence degradation subtropical ecosystems China.

Language: Английский

---

Anthropogenic impacts on multiple facets of macroinvertebrate α and β diversity in a large river-floodplain ecosystem

The Science of The Total Environment, Journal Year: 2023, Volume and Issue: 874, P. 162387 - 162387

Published: Feb. 25, 2023

Language: Английский

---

Multiple anthropogenic stressors influence the taxonomic and functional homogenization of macroinvertebrate communities on the mainstream of an urban-agricultural river in China

Journal of Environmental Management, Journal Year: 2023, Volume and Issue: 341, P. 118017 - 118017

Published: May 5, 2023

Language: Английский

---