Clustered warming tolerances and the nonlinear risks of biodiversity loss on a warming planet

Philosophical Transactions of the Royal Society B Biological Sciences, Journal Year: 2025, Volume and Issue: 380(1917)

Published: Jan. 9, 2025

Anthropogenic climate change is projected to become a major driver of biodiversity loss, destabilizing the ecosystems on which human society depends. As planet rapidly warms, disruption ecological interactions among populations, species and their environment, will likely drive positive feedback loops, accelerating pace magnitude losses. We propose that, even without invoking such amplifying feedback, loss should increase nonlinearly with warming because non-uniform distribution biodiversity. Whether these non-uniformities are uneven populations across species’ thermal niche, or niche limits within an community, we show that in both cases, resulting clustering population tolerances drives nonlinear increases risk discuss how fundamental constraints physiologies geographical distributions give rise clustered tolerances, responses changing climates could variously temper, delay intensify dynamics. argue risks be null expectation under warming, highlight empirical research needed understand causes, commonness consequences better predict where, when why losses occur. This article part discussion meeting issue ‘Bending curve towards nature recovery: building Georgina Mace’s legacy for biodiverse future’.

Language: Английский

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A Comprehensive Review of Climatic Threats and Adaptation of Marine Biodiversity

Journal of Marine Science and Engineering, Journal Year: 2024, Volume and Issue: 12(2), P. 344 - 344

Published: Feb. 17, 2024

Oceans play a vital role in socioeconomic and environmental development by supporting activities such as tourism, recreation, food provision while providing important ecosystem services. However, concerns have been raised about the threat that climate change poses to functions of oceans. This study examines impacts, threats, adaptation strategies marine biodiversity. Using bibliometric secondary data analysis, this determines leads rising sea temperatures, heatwaves, acidification, increasing levels. These factors undermine significance ocean also identifies significant risks posed species diversity distribution, primarily through habitat degradation shifts ranges. Scholarly focus on these challenges has grown over time, focusing building resilience mitigate adverse impacts. critically evaluates various measures, including nature-based human-based solutions restoration, policy legislative frameworks, their potential protect ecosystems. It provides detailed discussions effectiveness protected areas (MPAs), mangrove coral reef range shifts. review emphasises indigenous knowledge systems community participation conservation efforts achieve holistic sustainable management. highlights need for enhanced international cooperation transdisciplinary approach address complex interplay between Additionally, suggests funding research gaps can be secured tourism revenue other mechanisms.

Language: Английский

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Widespread Coral Bleaching and Mass Mortality of Reef-Building Corals in Southern Mexican Pacific Reefs Due to 2023 El Niño Warming

Oceans, Journal Year: 2024, Volume and Issue: 5(2), P. 196 - 209

Published: April 4, 2024

In May 2023, oceanic and atmospheric anomalies indicated El Niño conditions in the eastern Pacific, followed by coral bleaching communities reefs of Huatulco. We conducted surveys sampled reef from late June to mid–August 2023 evaluate intensity extent changes associated with warming event. From January Huatulco experienced positive sea surface temperature (SST) anomalies; however, beginning June, high-temperature became extreme (>31 °C; ~2 °C above historical records). These high temperatures resulted extensive middle–late mortality July (>50–93%). addition, area significant reductions echinoderm abundance fish biomass. severe affected systems Central Mexican Gulf Mexico, Caribbean, making this most devastating marine heatwave event, simultaneously impacting across Mexico’s Pacific Atlantic coasts.

Language: Английский

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A global trophic analysis of estuary-associated fishes

Reviews in Fish Biology and Fisheries, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 8, 2025

Language: Английский

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Testing Bergmann's rule in marine invertebrates: Using global brachiopod data during the Permian glacial-interglacial transition

Global and Planetary Change, Journal Year: 2025, Volume and Issue: unknown, P. 104737 - 104737

Published: Feb. 1, 2025

Language: Английский

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Climate and ecosystem type affect the correlated evolution of body size and trophic position in fishes

Global Ecology and Biogeography, Journal Year: 2024, Volume and Issue: 33(10)

Published: July 7, 2024

Abstract Aim The relationship between body size and trophic position (BS–TP) typically exhibits a positive correlation in aquatic foodwebs, but the strength of this is contingent on ecosystem type climate. Different hypotheses have been proposed to elucidate climate effects BS–TP for ray‐finned fish. However, our understanding whether such evolved correlated fashion, spanning various climates types, remains limited. Location Temperate tropical marine freshwater ecosystems. Time Period Present millions years ago. Major Taxa Studied Ray‐finned Methods We used phylogenetic tree TP BS data more than thousand fishes, from distinct ecosystems, investigate patterns macroevolutionary time scales evolutionary TP. As part investigation, we also ran analyses excluding herbivores detritivores dataset, then further focusing solely carnivores. Results found different was significant all type–climate combinations, except results remained consistent even after accounting uncertainty when analysis. Main Conclusions weaker These findings are with stronger extant taxa temperate compared tropics, illustrating how dynamics might influenced structure fish contributed shaping macroecological relationship. Our suggest that limitations hinder integration be primarily attributed energetic constraints imposed by temperature availability C‐rich food resources at base foodweb.

Language: Английский

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Numbers of fish species, higher taxa, and phylogenetic similarity decrease with latitude and depth, and deep-sea assemblages are unique

PeerJ, Journal Year: 2023, Volume and Issue: 11, P. e16116 - e16116

Published: Sept. 26, 2023

Species richness has been found to increase from the poles tropics but with a small dip near equator over all marine fishes. Phylogenetic diversity measures offer an alternative perspective on biodiversity linked evolutionary history. If phylogenetic is standardized for species richness, then it may indicate places relatively high genetic diversity. Latitudes and depths both would be priority conservation. We compared latitudinal depth gradients of three diversity, namely average (AvPD), sum higher taxonomic levels (STL) divided by number (STL/spp) modelled ranges 5,619 fish species. distinguished all, bony cartilaginous groups four zones namely: whole water column; 0 -200 m; 201-1,000 1,001-6,000 at 5° intervals 75°S 75°N, 100 m 3,500 m. were in subtropics equator, significantly correlated among zones. assemblages had closer relationships (lower AvPD STL/spp) warmer (low latitudes shallow water) than colder environments (high deep sea). This supports hypothesis that have rates evolution across range taxa. also distinct different such deeper sea are not simply subset assemblages. Thus, conservation needs representative encompass global biodiversity.

Language: Английский

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A global trophic functional analysis of estuary-associated fishes

Research Square (Research Square), Journal Year: 2024, Volume and Issue: unknown

Published: Aug. 14, 2024

The global trophic structure and level of estuarine-associated fishes was analysed in relation to biogeographic selected environmental parameters. Meta-assemblages estuary-associated were collated at the marine ecoregion a broad (bioregion) level. fish assemblages compared based on feeding mode functional groups (guilds) levels. Relationships between these guilds levels characteristics attributes also examined. Significant differences observed bioregions relative species contribution their Sea surface temperature, which is often related latitude, appeared be major factor associated with within each bioregion. Zoobenthivores dominated composition all bioregions, highlighting importance benthic food chain estuarine communities. detritivores, herbivores, omnivores declined from tropical cool-temperate increasing ecoregions. This trend linked diversity ability detritivorous process low quality (trophic level) latitudes. zooplanktivores increased bioregions; this higher zooplankton abundance temperate regions. piscivorous exhibited decline but group showed opposite trend. Through consuming high food, piscivores are able occupy thrive habitats. Generalised webs that contrast presented, key role detritus conferring stability being emphasized.

Language: Английский

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Latitudinal gradients in herbivorous and detritivorous reef fish productivity

Reviews in Fish Biology and Fisheries, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 30, 2024

Language: Английский

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