The Influence of Litter Diversity on Leaf Breakdown and the Colonization of Decomposer Communities in Subtropical Highland Grassland Streams

Biotropica, Год журнала: 2025, Номер 57(2)

Опубликована: Фев. 5, 2025

ABSTRACT Litter diversity can enhance leaf breakdown through selective effects when driven by a particular species or specific chemical characteristics. We analyzed the influence of mixtures on and associated decomposers in highland grassland stream that receives low‐diversity inputs. incubated leaves Ocotea diospyrifolia , Nectandra megapotamica Myrcia eugenioides Miconia flammea coarse mesh litter bags containing mixture four species, as well each single treatments (6 streams × 3 replicates 5 = 90 sampling units). found had higher rates than mixed treatment, suggesting increased did not positively streams. Adaptations decomposer assemblages to poorly structured riparian vegetation may have outweighed potential diversity. importance quality, measured nutrient content, driving breakdown, with effect depending individual Despite lack positive rates, treatment showed fungi invertebrate decomposers. The habitat structure but reduced number individuals due resource heterogeneity, favoring specialists. Functional feeding groups exhibited expected patterns for their strategies, shredders benefiting from scrapers preferring treatments. Overall, was crucial organic matter processing influenced

Язык: Английский

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

The Science of The Total Environment, Год журнала: 2023, Номер 874, С. 162387 - 162387

Опубликована: Фев. 25, 2023

Язык: Английский

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Response of functional diversity of fish communities to habitat alterations in small lowland rivers

Biodiversity and Conservation, Год журнала: 2024, Номер 33(4), С. 1439 - 1458

Опубликована: Март 1, 2024

Abstract Functional diversity has proven to be more responsive than traditional taxonomic alterations for a wide set of communities, especially in aquatic ecosystems. Habitat are among the most relevant causes biodiversity loss freshwater ecosystems, nevertheless their effect on functional been scarcely investigated so far. In this study, fish communities River Po basin, north Italy, were related habitat quality at different spatial scales. Land use and riparian vegetation identified as influent factors diversity. On other hand, descriptors smaller scale did not influence fish. The evidenced responses driven by contribution exotic species, which maximized ecological niche occupancy, either exploiting increased heterogeneity or interaction with native species. Moreover, traits filtering, disadvantaging large predators such salmonids, was also observed studied but likely alterations. Overall, study confirms that land changes can considered valid proxies anthropogenic possible effects ecosystem level, spread could hypothesized, giving mostly influencing patterns trophic niche, factor associated crucial processes like nutrient cycling energy transfer.

Язык: Английский

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Assessing the role of non-native species and artificial water bodies on the trophic and functional niche of Mediterranean freshwater fish communities

The Science of The Total Environment, Год журнала: 2024, Номер 938, С. 173520 - 173520

Опубликована: Май 27, 2024

Язык: Английский

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Temporal changes in taxonomic and functional alpha and beta diversity across tree communities in subtropical Atlantic forests

Oikos, Год журнала: 2025, Номер unknown

Опубликована: Фев. 21, 2025

Biodiversity is changing globally, but how these changes impact the structure of local ecological communities remains uncertain and debated. Understanding whether biodiversity increases, decreases, or stable across different scales essential for predicting managing shifts. Here we assessed temporal taxonomic functional alpha beta diversity adult juvenile tree 11 sites in subtropical Brazilian Atlantic Forest to infer about trends drivers change. The were evaluated in: 1) diversity, 2) composition (beta diversity), 3) identifying potential abiotic biotic changes, considering three censuses a period 10 years. Our results revealed few little directionality evidenced directional diversity. Furthermore, rate change was slightly similar communities, both Beta decreased over time, which more pronounced than dissimilarity, suggesting homogenization within forests. findings offer important insights that help clarify mixed on trends, showing sensitive indicator community study highlights species loss gain, may influence ecosystem functioning, providing crucial information conservation management efforts. With most global time series datasets geographically skewed toward Northern Hemisphere, studies like ours are increasingly balanced understanding changes.

Язык: Английский

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Plant Functional Traits Mediate the Effects of Flooding on Biomass Allocation in Invasive Plant Communities

Land Degradation and Development, Год журнала: 2025, Номер unknown

Опубликована: Май 27, 2025

ABSTRACT Understanding biomass allocation strategies in invasive plants is crucial for developing effective management approaches. However, the mechanisms by which plant functional traits and soil properties influence invaded communities, particularly invasion‐prone riparian zones, remain poorly understood. Here, we collected data on traits, biomass, factors from (IP) non‐invasive (NP) communities under similar site conditions zone of Three Gorges Reservoir China during 2021. We examined roles community shaping evaluated applicability optimal isometric theories. Results showed that trade‐off values both IP NP were greater than zero increased with elevation, indicating allocate more to aboveground portions combat flooding, consistent theory. Biomass was primarily influenced physicochemical (e.g., bulk density pH), whereas IP, it mainly determined dominant such as community‐weighted mean height (CWM_H). The structural equation model explained 78% 62% variation respectively. Furthermore, demonstrated CWM_H) mediated flooding's effects communities. These findings underscore distinct between non‐invaded highlight importance trait‐based driving success. This study emphasizes need consider trait dynamics when managing invasions flood‐affected systems.

Язык: Английский

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Effects of green areas and the urbanization process in the natural populations of the endemic freshwater crab Strengeriana fuhrmanni (Decapoda: Pseudothelphusidae) in Colombia

Aquatic Ecology, Год журнала: 2023, Номер 57(3), С. 733 - 745

Опубликована: Июнь 13, 2023

Язык: Английский

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Effects of environmental filtering on taxonomic and functional diversity patterns : When spiders and plants provide complementary information to water level management in the Seine estuary

Research Square (Research Square), Год журнала: 2024, Номер unknown

Опубликована: Июль 10, 2024

In the Seine estuary in northern France, many artificial structures limit effect of tide on associated alluvial zones. Consequently, this affects natural environmental filtering mechanisms linked to tidal regimes and water salinity, which directly influences structure organism assemblies adjacent ecosystems. Here, we propose study influence these filters' modifications spiders plants, two compartments recognized as complementary terms bioindication. However, complementarity has only been studied a limited extent rarely estuarine environments. To highlight complementarity, taxonomic functional patterns obtained across different topographical levels sites with contrasting level managements. Moreover, particular attention was paid weight attributed rare species (Q order) shed light processes affecting dominance dynamics between taxa. Overall, spider communities appeared less influenced by than plants both sites, diversity demonstrating low sensitivity salinity. Spider community also demonstrated compositional shifts mainly driven changes abundance dominance. contrast, plant more sensitive constraints management, responses composition turnover rather unbalanced abundance, suggesting at distinct spatial scales communities.

Язык: Английский

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Effects of environmental filtering on taxonomic and functional diversity patterns: When spiders and plants provide complementary information to water level management in the Seine estuary

Ecological Indicators, Год журнала: 2024, Номер 169, С. 112957 - 112957

Опубликована: Дек. 1, 2024

Язык: Английский

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Preface: Emerging trends in aquatic ecology IV

Hydrobiologia, Год журнала: 2023, Номер 850(6), С. 1217 - 1219

Опубликована: Март 1, 2023

Язык: Английский

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