More losses than gains during one century of plant biodiversity change in Germany

Nature, Journal Year: 2022, Volume and Issue: 611(7936), P. 512 - 518

Published: Oct. 19, 2022

Language: Английский

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Environment regimes play an important role in structuring trait‐ and taxonomy‐based temporal beta diversity of riverine diatoms

Journal of Ecology, Journal Year: 2022, Volume and Issue: 110(6), P. 1442 - 1454

Published: Feb. 15, 2022

Abstract A sound understanding of the community changes over time and its driving forces is at centre biodiversity conservation ecology research. In this study, we examined: (i) relative roles turnover nestedness components to trait‐ taxonomy‐based temporal beta diversity riverine diatoms; (ii) whether trait‐based provides complementary information diversity; (iii) hydrology (e.g. discharge, antecedent precipitation index), metal ions Mg 2+ , Si ) nutrients nitrogen, orthophosphate) both facets their (i.e. total diversity, nestedness); (iv) inclusion environment regimes increase explained variations. 338 daily samples diatom communities were collected. We employed Mantel tests evaluate complementarities between diversity. Using distance‐based redundancy analysis (db‐RDA) variation partitioning, investigated hydrology, each facet components. Correlations weak, which showed ecological information. Taxonomy‐based had a high contribution by component, whereas was largely driven component. Results partitioning demonstrated that pure shared fractions nutrient differed among Furthermore, addition could dramatically Synthesis . Our results highlighted importance two as well decomposition for exploring patterns diatoms in relation abiotic factors, particularly regimes. Although taxonomic divergence detected, level trait convergence indicated species with similar biological traits occurred during our study period. first time, new perspective into communities, has not yet been documented previous freshwater studies.

Language: Английский

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Plant beta-diversity across biomes captured by imaging spectroscopy

Nature Communications, Journal Year: 2022, Volume and Issue: 13(1)

Published: May 19, 2022

Abstract Monitoring the rapid and extensive changes in plant species distributions occurring worldwide requires large-scale, continuous repeated biodiversity assessments. Imaging spectrometers are at core of novel spaceborne sensor fleets designed for this task, but degree to which they can capture composition diversity across ecosystems has yet be determined. Here we use imaging spectroscopy vegetation data collected by National Ecological Observatory Network (NEON) show that landscape level, spectral beta-diversity—calculated directly from images—captures all major biomes United States ranging arctic tundra tropical forests. At local however, relationship between alpha- alpha-diversity was positive only sites with high canopy density large plant-to-pixel size. Our study demonstrates effectively reliably assessed terrestrial beta-diversity scale—the spatial scale missions—paving way close-to-real-time monitoring planetary level.

Language: Английский

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Monitoring the birds and the bees: Environmental DNA metabarcoding of flowers detects plant–animal interactions

Environmental DNA, Journal Year: 2023, Volume and Issue: 5(3), P. 488 - 502

Published: March 8, 2023

Abstract Animal pollinators are vital for the reproduction of ~90% flowering plants. However, many these pollinating species experiencing declines globally, making effective pollinator monitoring methods more important than ever before. Pollinators can leave DNA on flowers they visit, and metabarcoding environmental (eDNA) traces provides an opportunity to detect presence flower visitors. Our study, collecting from seven plant with diverse floral morphologies, eDNA analysis, illustrated value this novel survey tool. using three assays, including one developed in study target common bush birds, recorded animal visiting visual surveys conducted concurrently, bees, other species. We also a visit western pygmy possum; our knowledge is first simultaneously identify interaction insect, mammal, bird flowers. The highest diversity taxa was detected large inflorescence types found Banksia arborea Grevillea georgeana. demonstrates that ease sample collection robustness methodology has profound implications future management biodiversity, allowing us monitor both plants their attendant cohort potential pollinators. This opens avenues rapid efficient comparison biodiversity ecosystem health between different sites may provide insights into surrogate event declines.

Language: Английский

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Regional occupancy increases for widespread species but decreases for narrowly distributed species in metacommunity time series

Nature Communications, Journal Year: 2023, Volume and Issue: 14(1)

Published: March 16, 2023

While human activities are known to elicit rapid turnover in species composition through time, the properties of that increase or decrease their spatial occupancy underlying this less clear. Here, we used an extensive dataset 238 metacommunity time series multiple taxa spread across globe evaluate whether more widespread (large-ranged species) differed how they changed site over 10-90 years metacommunities were monitored relative narrowly distributed (small-ranged species). We found on average, large-ranged tended whereas small-ranged decrease. These relationships stronger marine than terrestrial and freshwater realms. However, regions, directional changes extreme protected areas. Our findings provide evidence for systematic decreases species, habitat protection could mitigate these losses face environmental change.

Language: Английский

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Perspective: sustainability challenges, opportunities and solutions for long-term ecosystem observations

Philosophical Transactions of the Royal Society B Biological Sciences, Journal Year: 2023, Volume and Issue: 378(1881)

Published: May 29, 2023

As interest in natural capital grows and society increasingly recognizes the value of biodiversity, we must discuss how ecosystem observations to detect changes biodiversity can be sustained through collaboration across regions sectors. However, there are many barriers establishing sustaining large-scale, fine-resolution observations. First, comprehensive monitoring data on both possible anthropogenic factors lacking. Second, some situ cannot systematically established maintained locations. Third, equitable solutions sectors countries needed build a global network. Here, by examining individual cases emerging frameworks, mainly from (but not limited to) Japan, illustrate ecological science relies long-term neglecting basic our home planet further reduces chances overcoming environmental crisis. We also techniques opportunities, such as DNA citizen well using existing forgotten sites monitoring, that help overcome difficulties at large scale with fine resolution. Overall, this paper presents call action for joint factors, systematic establishment maintenance observations, network, beyond cultures, languages, economic status. hope proposed framework examples Japan serve starting point discussions collaborations among stakeholders multiple society. It is time take next step detecting socio-ecological systems, if observation made more feasible, they will play an even important role ensuring sustainability future generations. This article part theme issue 'Detecting attributing causes change: needs, gaps solutions'.

Language: Английский

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Destabilizing Effects of Environmental Stressors on Aquatic Communities and Interaction Networks across a Major River Basin

Environmental Science & Technology, Journal Year: 2023, Volume and Issue: 57(20), P. 7828 - 7839

Published: May 8, 2023

Human-driven environmental stressors are increasingly threatening species survival and diversity of river systems worldwide. However, it remains unclear how the affect stability changes across aquatic multiple communities. Here, we used DNA (eDNA) data sets from a human-dominated in China over 3 years analyzed communities under persistent anthropogenic stressors, including land use pollutants. First, found that significantly reduced multifaceted (e.g., richness, Shannon's diversity, Simpson's diversity) but increased synchrony Second, structures interaction networks inferred an empirical meta-food web were changed for example, resulting decreased network modularity negative/positive cohesion. Third, piecewise structural equation modeling proved stress-induced decline mainly depended upon diversity-mediated pathways rather than direct effects stress per se; specifically, increase main biotic drivers variation. Overall, our study highlights destabilizing on as well mechanistic dependencies, through reducing increasing synchrony, changing networks.

Language: Английский

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The response of arboreal marsupials to long‐term changes in forest disturbance

Animal Conservation, Journal Year: 2020, Volume and Issue: 24(2), P. 246 - 258

Published: Sept. 3, 2020

Abstract Quantifying the long‐term population trajectory of species and factors affecting these trends is a fundamental part animal conservation. We describe results investigation temporal changes in occurrence arboreal marsupials wet eucalypt forests south‐eastern Australia. The assemblage includes habitat specialists such as vulnerable greater glider Petauroides volans critically endangered Leadbeater’s possum Gymnobelideus leadbeateri , well common widespread taxa. Using data gathered between 1997 2018, we quantified relationships site occupancy four marsupial spatio‐temporal landscape‐level variables, including number hollow‐bearing trees at site, extent fire logging surrounding landscape. found evidence that: (1) (which are critical den sites for marsupials) has declined substantially past two decades. (2) There was decline all marsupials. (3) presence positively linked to large old site. (4) disturbance landscape had positive impact on sugar Petaurus breviceps but negative effect possum. This suggests that ongoing will have further impacts (5) with increasing amounts Negative effects concern montane ash increasingly susceptible high‐severity wildfires. Stronger efforts needed reduce frequency mountain protect populations.

Language: Английский

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Animals, protists and bacteria share marine biogeographic patterns

Nature Ecology & Evolution, Journal Year: 2021, Volume and Issue: 5(6), P. 738 - 746

Published: April 15, 2021

Language: Английский

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Blind assessment of vertebrate taxonomic diversity across spatial scales by clustering environmental DNA metabarcoding sequences

Ecography, Journal Year: 2020, Volume and Issue: 43(12), P. 1779 - 1790

Published: Aug. 4, 2020

Human activities impact all ecosystems on Earth, which urges scientists to better understand biodiversity changes across temporal and spatial scales. Environmental DNA (eDNA) metabarcoding is a promising non‐invasive method assess species composition in wide range of ecosystems. Yet, this requires the completeness reference database, i.e. list sequences attached each regional pool, rarely met. As an alternative, molecular operational taxonomic units (MOTUs) can be extracted as clusters sequences. However, extent diversity MOTUs predict scales unknown. Here, we used 196 samples along Rhone river (France) for database complete whether blind eDNA approach reliably ground‐truth number at different Using 12S rDNA teleo primer, curated clustered 60 million into using new assembled bioinformatic pipeline. We show that stringent quality filters were necessary remove artefact noise, notably present single PCR replicate, represented 55% (103). Post‐clustering cleaning also removed 19 additional erroneous only discarded one truly species. then retained fish accurately predicted local (α, r = 0.98) (γ) (67 versus 63 species), but dissimilarity between (β‐diversity, 0.98). This work paves way towards extending use community ecology biogeography despite major gaps genetic databases.

Language: Английский

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