Current and Future Influence of Environmental Factors on Small Pelagic Fish Distributions in the Northwestern Mediterranean Sea

Frontiers in Marine Science, Journal Year: 2020, Volume and Issue: 7

Published: July 24, 2020

In the Northwestern Mediterranean Sea, European sardine (Sardina pilchardus) and anchovy (Engraulis encrasicolus) are most important small pelagic fish in terms of biomass commercial interest. During last years, these species have experimented changes their abundance trends addition to growth, reproduction body condition. These particularly sensitive environmental fluctuations with possible cascading effects as they play a key role connecting lower upper trophic levels marine food webs. It is therefore essential understand factors that profoundly affect dynamics. This study used two-step approach how environment influences adult stages Sea. First, we explored change over time using Random Forests available datasets occurrence, abundance, landings. We then applied distribution models test impact extreme pessimistic optimistic Intergovernmental Panel on Climate Change (IPCC) pathway scenarios, identify climate refuges: areas where may be able persist under future change. Findings from temporal modelling showed mixed between variables for datasets. Future projections highlight both will undergo reduction spatial distributions due conditions. The refuges waters around Rhone River (France) Ebro (Spain) species. also highlights knowledge gaps our understanding dynamics region, which needed progress towards an ecosystem fisheries management.

Language: Английский

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pastclim 1.2: an R package to easily access and use paleoclimatic reconstructions

Ecography, Journal Year: 2023, Volume and Issue: 2023(3)

Published: Jan. 5, 2023

The recent development of continuous paleoclimatic reconstructions covering hundreds thousands years paved the way for a large number studies from disciplines ranging paleoecology to archaeology, conservation population genetics, macroevolution anthropology and human evolution linguistics. Unfortunately, (paleo)climatic data can be challenging extract analyze scholars unfamiliar with such specific file formats. Here we present pastclim , an R package facilitating access use reconstructions. It currently includes two datasets, respectively last 120 000 800 years, vignette provides instructions on how include additional datasets. contains set functions quickly easily recover climate time periods interest either whole world or areas, locations scattered in space and/or time, retrieve series individual sites, manage ice land coverage, offering handy platform past into existing new analyses pipelines.

Language: Английский

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Environmental variability across space and time drives the recolonization pattern of a historically persecuted large carnivore

Proceedings of the National Academy of Sciences, Journal Year: 2025, Volume and Issue: 122(5)

Published: Jan. 27, 2025

Wildlife populations are not static. Intrinsic and extrinsic factors affect individuals, which lead to spatiotemporal variation in population density range. Yet, dynamics their drivers rarely documented, due part the inherent difficulty of studying long-term population-level phenomena at ecologically meaningful scales. We studied a recolonizing large carnivore population, wolverine Gulo gulo , across Scandinavian Peninsula over nine years. fitted open-population spatial capture-recapture models noninvasive genetic sampling data collected Norway Sweden estimate annual surfaces drivers. This approach allowed us model sex-specific changes effect landscape-level environmental determinants time. Our results revealed that, as wolverines successfully recolonized many parts historical range Scandinavia, relationship with has changed also found support for responses differences temporal relationships, indicating disproportionate recolonization ability anthropogenic pressures. observed significant female several during study period, suggesting still ongoing expansion whereas males might have already reached limits. These findings show that is recovering from centuries persecution severe contraction. sheds light on challenges carnivores human-dominated landscapes time space.

Language: Английский

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Using species distribution modelling to determine opportunities for trophic rewilding under future scenarios of climate change

Philosophical Transactions of the Royal Society B Biological Sciences, Journal Year: 2018, Volume and Issue: 373(1761), P. 20170446 - 20170446

Published: Oct. 22, 2018

Trophic rewilding, the (re)introduction of species to promote self-regulating biodiverse ecosystems, is a future-oriented approach ecological restoration. In twenty-first century and beyond, human-mediated climate change looms as major threat global biodiversity ecosystem function. A critical aspect in planning trophic rewilding projects selection suitable sites that match needs focal under both current future climates. Species distribution models (SDMs) are currently main tools derive spatially explicit predictions environmental suitability for species, but extent their adoption has been limited. Here, we provide an overview applications SDMs projects, outline methodological choices issues, synthesis outlook. We then predict potential 17 large-bodied taxa proposed candidates which represent different continents habitats. identified widespread climatic these discussed regions Climatic conditions generally remain future, although some will experience reduced parts regions. conclude not barrier literature.This article part theme issue 'Trophic rewilding: consequences ecosystems change'.

Language: Английский

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Plant Diversity Patterns and Conservation Implications under Climate-Change Scenarios in the Mediterranean: The Case of Crete (Aegean, Greece)

Diversity, Journal Year: 2020, Volume and Issue: 12(7), P. 270 - 270

Published: July 7, 2020

Climate change poses a great challenge for biodiversity conservation. Several studies exist regarding climate change’s impacts on European plants, yet none has investigated how will affect the extinction risk of entire endemic flora an island hotspot, with intense human disturbance. Our aim is to assess patterns plants Crete (S Aegean) and provide case-study upon which climate-smart conservation planning strategy might be set. We employed variety macroecological analyses estimated current future biodiversity, hotspots in Crete. evaluated effectiveness climatic refugia Natura 2000 network protected areas (PAs) protecting most vulnerable species identified taxa priority based Evolutionary Distinct Globally Endangered (EDGE) index. The results revealed that high altitude Cretan mountains constitute evolutionary value. Due “escalator extinction” phenomenon, these are projected become diversity “death-zones” should thus prioritised. Conservation efforts targeted at overlaps among PAs refugia, characterised by EDGE scores. This conservation-prioritisation allow preservation heritage, trait ecosystem services well-being acts as pilot similar regions worldwide.

Language: Английский

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Accelerated shifts in terrestrial life zones under rapid climate change

Global Change Biology, Journal Year: 2021, Volume and Issue: 28(3), P. 918 - 935

Published: Oct. 31, 2021

Rapid climate change is impacting biodiversity, ecosystem function, and human well-being. Though the magnitude trajectory of are becoming clearer, our understanding how these changes reshape terrestrial life zones-distinct biogeographic units characterized by biotemperature, precipitation, aridity representing broad-scale types-is limited. To address this gap, we used high-resolution historical climatologies projections to determine global distribution (1901-1920), contemporary (1979-2013), future (2061-2080) zones. Comparing distributions shows that from one zone another during 20th century impacted 27 million km2 (18.3% land), with consequences for social ecological systems. Such took place in all biomes, most notably Boreal Forests, Temperate Coniferous Tropical Forests. pace accelerating rapidly 21st century. By 2070, such would impact an additional 62 (42.6% land) under "business-as-usual" (RCP8.5) emissions scenarios. Accelerated rates observed hundreds ecoregions across biomes except While only 30 (3.5%) had over half their areas a different century, 2070 number projected climb 111 (13.1%) RCP4.5 281 (33.2%) RCP8.5. We identified weak correlations between threatened vertebrate richness, levels endemism, cropland extent, population densities within ecoregions, illustrating ubiquitous risks diverse social-ecological The accelerated will increasingly challenge adaptive conservation sustainable development strategies incorrectly assume current patterns livelihood provisioning systems persist.

Language: Английский

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Analysing the distribution of strictly protected areas toward the EU2030 target

Biodiversity and Conservation, Journal Year: 2023, Volume and Issue: 32(10), P. 3157 - 3174

Published: June 25, 2023

Abstract Protecting global biodiversity is one of the most urgent tasks for coming decades. Area-based conservation a pillar preserving ecosystems and species. Strictly protected areas specifically preserve ecosystem processes. The “EU Biodiversity Strategy 2030” targets strict protection 10% land area. Here we performed first analysis strictly (as IUCN type Ia, Ib, II) across Europe, by investigating their area coverage at level biogeographical regions, countries elevation gradients. We show that, with few exceptions, amount very limited spatial distribution such biased towards higher sites, as in case other areas. Then, suggest that potential should be identified to expand low economic social costs including, instance, high value, population, productive use. Finally, propose coordinated effort strategic plan achieve continental-scale are fundamental, least half this under (i.e. 5%) categories Ia Ib.

Language: Английский

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Shifted distribution baselines: neglecting long-term biodiversity records risks overlooking potentially suitable habitat for conservation management

Philosophical Transactions of the Royal Society B Biological Sciences, Journal Year: 2019, Volume and Issue: 374(1788), P. 20190215 - 20190215

Published: Nov. 4, 2019

Setting appropriate conservation measures to halt the loss of biodiversity requires a good understanding species' habitat requirements and potential distribution. Recent (past few decades) ecological data are typically used estimate understand species’ niches. However, historical local extinctions may have truncated species–environment relationships, resulting in biased perception preferences. This result incorrect assessments area potentially available for their conservation. Incorporating long-term (centuries-old) occurrence records with recent provide better information on relationships improve modelling suitability. We test whether neglecting leads an underestimation niche distribution identify which species more vulnerable this effect. compare outputs models hypervolumes built using only those both (post-1500) records, set 34 large mammal South Africa. find that, while is adequate some species, adding analyses impacts estimates suitability 12 (34%) our dataset, that effect significantly higher carnivores. These results show spatial risks misunderstanding, generally underestimating, niches, turn lead ill-informed management decisions, significant implications effectiveness efforts. article part discussion meeting issue ‘The past foreign country: how much can fossil record actually inform conservation?’

Language: Английский

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SOS small pelagics: A safe operating space for small pelagic fish in the western Mediterranean Sea

The Science of The Total Environment, Journal Year: 2020, Volume and Issue: 756, P. 144002 - 144002

Published: Nov. 23, 2020

Language: Английский

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Spatial conservation prioritization for locating protected area gaps in Iran

Biological Conservation, Journal Year: 2023, Volume and Issue: 279, P. 109902 - 109902

Published: Jan. 27, 2023

Language: Английский

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