Environmental Factors Shape the Differences in Biodiversity-Area Relationships in Riverine Macroinvertebrates of Two Rivers in the Tibetan Plateau in China

Water, Год журнала: 2024, Номер 16(6), С. 882 - 882

Опубликована: Март 19, 2024

The species-area relationship (SAR) is a well-established, globally recognized ecological pattern, and research on SAR has expanded to include the phylogenetic diversity-area (PDAR). However, this generally been limited terrestrial systems. Using data freshwater macroinvertebrates, log–log form of PDAR power models were compared between Lhasa River Niyang Tibetan Plateau in China. study reveals that there significant difference slopes two rivers, with having considerably higher slope. beta diversity calculations these basins support exhibiting significantly numbers species greater total than River. Regarding replacement, turnover component was primary driver both rivers. These differences components mainly driven by dispersal constraints because spatial distance had large effect fractions. In addition, nestedness more affected climate land cover, indicating highland rivers are subject threats anthropogenic disturbance change. Therefore, factors play crucial role determining distribution passively dispersed benthic organisms as scale change increases from local regional effects.

Язык: Английский

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Contributions of source populations, habitat suitability and trait overlap to benthic invertebrate community assembly in restored urban streams

bioRxiv (Cold Spring Harbor Laboratory), Год журнала: 2024, Номер unknown

Опубликована: Июль 3, 2024

Abstract Community development in restored streams is often slow or even absent, but reasons remain obscure. Inadequate restoration measures, catchment-scale pressures, community closure and colonization barriers all may prevent down recovery processes. For initial colonization, dispersal processes are supposed to be most important, which referred as filter. Environmental conditions of a reach determine if dispersing species can successfully establish (environmental filter). Lastly, while available niches at those reaches fill up, biotic interactions, such competition, become more important (biotic To investigate the importance these different filters, we compared benthic invertebrate communities 20 sites Boye catchment (Western Germany), former open sewer system. The were grouped, based on years since restoration, into ‘unimpacted’ (never restored), ‘recently restored’ (< 4 years) ‘mature (> 10 sites. Data collected 28 additional informed us distances potential source populations. Habitat suitability describes fit between environmental (abiotic site data) preferences was used assess role filtering. We evaluated filter trait overlap, referring possible interspecific competition. Communities recently differed from mature unimpacted Taxa present had closer populations than better habitats overlap did not differ co-occurring taxa any groups. Our findings show that have been ago, resembled Dispersal early recovery. occurrences with nearby low habitat likely result high rates upstream sources (mass effects). These caused by hatching events disturbances. played larger for indicates optimal shape over time. find indications competition assembly. Hence, relevant species’ occurrences. Competition could micro scales results abundances taken account. Graphical

Язык: Английский

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finsyncR, an R package to synchronize 27 years of fish and invertebrate data across the United States

bioRxiv (Cold Spring Harbor Laboratory), Год журнала: 2024, Номер unknown

Опубликована: Фев. 27, 2024

Abstract The United States government collects some of the most comprehensive data on freshwater systems in existence, but barriers exist for new users to apply these without institutional guidance. ‘finsyncR’ ( f ish and vertebrate sync hronizer R ) is an package that streamlines process acquiring, processing, integrating fish macroinvertebrate datasets collected streams rivers, increasing access cleaned ensuring straightforward application data. sources are US Environmental Protection Agency’s National River Streams Assessment Geological Survey’s BioData. resulting span 27 years (1993 2019) include 8,115 sites, 15,169 sampling events, 963 genera, 687 species. We document common challenges working with including understanding designs, harmonizing taxonomy, calculating densities standardized abundances, accounting differences effort, considering improvements taxonomic identifications. anticipate this will spur research exploring changes communities across space time causes consequences those changes.

Язык: Английский

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Strategies for improvement of water quality in urban lakes

Progress in Energy and Environment, Год журнала: 2024, Номер unknown, С. 1 - 5

Опубликована: Июль 31, 2024

Urban lakes play a crucial role in maintaining ecological balance and improving environmental conditions within cities. They also contribute to socio-economic development by providing recreational opportunities attracting visitors. However, there are many issues that lead adverse effects on the water quality lakes. Strategies improve have be identified. Implementation of strategies is dependent support from construction professionals. Therefore, present study, levels towards implementation investigated means questionnaire survey among Results revealed that, draining lake clean out accumulated waste, pumping artificially raise level, planting more shoreline vegetation, obtained highest support. highlighted importance implementing combination for successful overall improvement quality.

Язык: Английский

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European river recovery might have run out of steam

Nature, Год журнала: 2023, Номер 620(7974), С. 493 - 494

Опубликована: Авг. 9, 2023

Язык: Английский

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