The Anthropocene and the biodiversity crisis: an eco-evolutionary perspective

Comptes Rendus Biologies, Journal Year: 2025, Volume and Issue: 348(G1), P. 1 - 20

Published: Jan. 9, 2025

A major facet of the Anthropocene is global change, such as climate caused by human activities, which drastically affect biodiversity with all-scale declines and homogenization biotas. This crisis does not only ecological dynamics biodiversity, but also its evolutionary dynamics, including genetic diversity, an aspect that generally neglected. My tenet therefore to consider from eco-evolutionary perspective, i.e. explicitly accounting for possibility rapid evolution feedback on processes environment. I represent impact various avatars change in a temporal pre-industrial time near future, allowing visualize their set desired values should be trespassed given (e.g., +2 °C 50 years now). After presenting stressors change) this representation used heuristically show relevance perspective: (i) analyze how will respond stressors, example seeking out more suitable conditions or adapting new conditions; (ii) serve predictive exercises envision future (decades centuries) under stressor impact; (iii) propose nature-based solutions crisis. Significant obstacles stand way development approach, particular general lack interest intraspecific perhaps understanding that, we, humans, are modest part biodiversity. Supplementary Materials: material article supplied separate file: crbiol-172-suppl.pdf Un majeur de l'Anthropocène est le changement global, par exemple climatique, qui causé les activités humaines et conduit à un déclin drastique la biodiversité une homogénéisation des écosystèmes. Cette crise n'affecte pas seulement dynamique écologique biodiversité, mais également sa évolutive, y compris diversité génétique, généralement négligé. Il donc nécessaire considérer d'un point vue éco-évolutif, c'est-à-dire en tenant compte explicitement possibilité d'une évolution rapide rétroaction sur processus écologiques l'environnement. Je représente l'impact différents du dans perspective temporelle, l'époque préindustrielle au futur proche, ce permet visualiser leur fixer valeurs souhaitables ne dépasser pour période donnée (par exemple, ans). Après avoir présenté divers facteurs stress climatique) cette représentation utilisée montrer pertinence éco-évolutive : analyser comment répondra aux environnementaux, recherchant plus appropriées ou s'adaptant nouvelles ; servir exercices prédictifs afin d'envisager dynamiques futures (décennies siècles) sous ces proposer fondées nature. reste importants voie développement telle approche, particulier manque d'intérêt général intraspécifique, peut-être compréhension fait que nous, humains, sommes qu'une modeste partie biodiversité. Compléments Des compléments sont fournis cet fichier séparé

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Understanding and counteracting the denial of insect biodiversity loss

Current Opinion in Insect Science, Journal Year: 2025, Volume and Issue: 68, P. 101338 - 101338

Published: Jan. 31, 2025

Language: Английский

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

Oikos, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 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.

Language: Английский

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Refined gap analysis for biodiversity conservation under climate change

Biological Conservation, Journal Year: 2025, Volume and Issue: 305, P. 111054 - 111054

Published: March 10, 2025

Language: Английский

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Divergent alpha and beta diversity trends of soil nematode fauna along gradients of environmental change in the Carpathian Ecoregion

Communications Biology, Journal Year: 2025, Volume and Issue: 8(1)

Published: April 9, 2025

There is a significant lack of research on how climate change influences long-term temporal trends in the biodiversity soil organisms. Nematodes may be specifically adequate to test changes, because they account for ~80% all Metazoans and play key roles functioning terrestrial ecosystems. Here, we report first synthesis study focused nematode fauna over period 14 years (1986-1999) across Carpathian Ecoregion. We provide new evidence that wetter conditions associated global contributes driving diversity at genus/family level. observed opposite alpha (increase) beta (decrease) consistent ecosystem types horizons, providing strong influence large spatial scales. An increase community functional uniformity along with decline indicated more homogenous time. The Soil Stability Index (metric devised assess homeostasis based composition communities) increased time, indicating disturbances complex food webs. Our results highlight importance nematodes as powerful indicators affected by multiple facets environmental monitoring.

Language: Английский

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Biodiversity–ecosystem function research must consider abundance and not just diversity

Published: April 11, 2025

Language: Английский

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Detecting parallel polygenic adaptation to novel evolutionary pressure in wild populations: a case study in Atlantic cod ( Gadus morhua )

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

Published: May 29, 2023

Populations can adapt to novel selection pressures through dramatic frequency changes in a few genes of large effect or subtle shifts many small effect. The latter (polygenic adaptation) is expected be the primary mode evolution for life-history traits but tends more difficult detect than Atlantic cod ( Gadus morhua ) were subjected intense fishing pressure over twentieth century, leading abundance crashes and phenotypic shift toward earlier maturation across populations. Here, we use spatially replicated temporal genomic data test shared polygenic adaptive response using methods previously applied evolve-and-resequence experiments. Cod populations on either side show covariance allele change genome that are characteristic recent adaptation. Using simulations, demonstrate degree observed unlikely explained by neutral processes background selection. As human wild continue increase, understanding attributing modes adaptation similar those demonstrated here will important identifying capacity responses evolutionary rescue. This article part theme issue ‘Detecting causes biodiversity change: needs, gaps solutions’.

Language: Английский

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Monitoring the fabric of nature: using allometric trophic network models and observations to assess policy effects on biodiversity

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

Published: May 29, 2023

Species diversity underpins all ecosystem services that support life. Despite this recognition and the great advances in detecting biodiversity, exactly how many which species co-occur interact, directly or indirectly any is unknown. Biodiversity accounts are incomplete; taxonomically, size, habitat, mobility rarity biased. In ocean, provisioning of fish, invertebrates algae a fundamental service. This extracted biomass depends on myriad microscopic macroscopic organisms make up fabric nature affected by management actions. Monitoring them attributing changes to policies daunting. Here we propose dynamic quantitative models interactions can be used link policy compliance with complex ecological networks. allows managers qualitatively identify 'interaction-indicator' species, highly impacted through propagation interactions. We ground approach intertidal kelp harvesting Chile fishers' policies. Results allow us sets respond and/or compliance, but often not included standardized monitoring. The proposed aids design biodiversity programmes attempt connect change. article part theme issue 'Detecting causes change: needs, gaps solutions'.

Language: Английский

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Non-linearity and temporal variability are overlooked components of global population dynamics

Published: Jan. 22, 2024

Aim. Population dynamics are usually assessed through linear trend analysis, quantifying their general direction. However, trends may hide substantial variations in population that could reconcile apparent discrepancies when the extent of biodiversity crisis. We seek to determine whether use non-linear methods and quantification temporal variability can add value approach by offering a more complete representation global changes. In addition, we how these components distributed among biogeographical regions taxonomic groups. Location.Global.Methods.We analysed 6,437 time series from 1,257 species Living Planet Database over period 1950-2020. modeled populations second order polynomials classified trajectories according direction acceleration. same using common analysis. quantified three metrics, coefficient variation, mean squared error consecutive disparity index. then used chi-squared tests mixed-effects models test potential sources heterogeneity variability.Results.Non-linear were better fit for 44.8 % analyzed series, was higher as linear. Linear missed meaningful information misclassifying recent declines or recovery signals. Marine highly variable, all groups IUCN categories exhibited degree non-linearity variability.Main conclusions.Non-linearity reveal overlooked dramatic signals dynamics. Thus, moving beyond linearity help reduce risk misleading conclusions inform conservation decisions. particular, « stable » informative variable changes integrate advanced assessment.

Language: Английский

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A test of Conserving Nature's Stage: protecting a diversity of geophysical traits can also support a diversity of species at a landscape scale

Philosophical Transactions of the Royal Society A Mathematical Physical and Engineering Sciences, Journal Year: 2024, Volume and Issue: 382(2269)

Published: Feb. 12, 2024

Conserving Nature's Stage (CNS) is a concept from conservation planning that promotes the protection of areas encompassing broad range enduring geophysical traits to provide long-term habitat for diverse species. The efficacy using characteristics as surrogates biodiversity, independent non-geophysical features and when considering finer resolution area selections, has yet be investigated. Here, we evaluated CNS 33 fine-scale inventories vascular plant, non-vascular invertebrate or vertebrate species 13 across three continents. For each inventory, estimated continuous multidimensional surrogate defined topographic soil estimates surveyed plots. We assessed effectiveness by comparing representation selected plots picked randomly information. then used correlation coefficients assess link between performance qualities inventories, surroundings surrogates. showed positive 24 among these tests, represented 28 more than random 83% total number on average. also found small weak correlations environmental variability, well surrogate. Our study demonstrates prioritizing variety will, in most cases, promote findings point future research might enhance surrogacy. This article part Theo Murphy meeting issue ‘Geodiversity science society’.

Language: Английский

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