Detecting Thresholds of Ecological Change in the Anthropocene

Annual Review of Environment and Resources, Journal Year: 2022, Volume and Issue: 47(1), P. 797 - 821

Published: Sept. 6, 2022

Ecological thresholds comprise relatively fast changes in ecological conditions, with respect to time or external drivers, and are an attractive concept both scientific policy arenas. However, there is considerable debate concerning the existence, underlying mechanisms, generalizability of across a range subdisciplines. Here, we usethe general scale as unifying framework which systematically navigate variability within threshold research. We review literature show how observational adopted any one study, defined by its organizational level, spatiotemporal grain extent, analytical method, can influence detection magnitude. highlight need for nuance synthetic studies thresholds, could improve our predictive understanding thresholds. Nuance also needed when translating concepts into policies, including contingencies uncertainties.

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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Marine heatwaves are not a dominant driver of change in demersal fishes

Nature, Journal Year: 2023, Volume and Issue: 621(7978), P. 324 - 329

Published: Aug. 30, 2023

Language: Английский

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Latitudinal patterns of forest ecosystem stability across spatial scales as affected by biodiversity and environmental heterogeneity

Global Change Biology, Journal Year: 2023, Volume and Issue: 29(8), P. 2242 - 2255

Published: Jan. 11, 2023

Our planet is facing a variety of serious threats from climate change that are unfolding unevenly across the globe. Uncovering spatial patterns ecosystem stability important for predicting responses ecological processes and biodiversity to change. However, understanding latitudinal pattern scales underlying drivers still very limited. Accordingly, this study examines at local regional scale using natural assembly forest metacommunities distributed over large temperate region, considering range potential environmental drivers. We found communities (regional stability) asynchronous dynamics among (spatial asynchrony) both decreased with increasing latitude, whereas (local did not. tested series hypotheses potentially drive stability, although biodiversity, climatic history, resource conditions, heterogeneity varied multiple were affected by heterogeneity. In particular, α diversity positively associated while β asynchrony, relationships weak. provides first evidence temporal naturally assembled driven findings suggest preservation plant within between maintenance heterogeneous landscapes can be crucial buffer ecosystems higher latitudes faster more intense negative impacts in future.

Language: Английский

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Universal beta-diversity–functioning relationships are neither observed nor expected

Trends in Ecology & Evolution, Journal Year: 2023, Volume and Issue: 38(6), P. 532 - 544

Published: Feb. 17, 2023

Language: Английский

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