Expected Impacts on Mediterranean Forest Species Under Climate Change

Climate, Journal Year: 2025, Volume and Issue: 13(2), P. 41 - 41

Published: Feb. 14, 2025

Climate change affects tree species, altering their growth and distribution, with effects varying by region, although mostly negative in the Mediterranean. This study examines 27 species central Iberia, a continental Mediterranean climate, using GISs climate models. It investigates changes net primary productivity (NPP) under different scenarios, identifying that are endangered or vulnerable. Currently, only 2.4% of forest stands endangered, but 51.2% vulnerable; 2100, these figures could rise to 35.4% 85.2%, respectively. A correlation between altitude threat level was found, mountain facing lower risks. Species higher levels linked high NPP low variability. Four currently have no threatened stands, though they may future, except one introduced high-elevation areas, which will be favoured change. induce migrations altitudes, movements depend on rate change, population size, fragmentation, human alteration environment. Migration more challenging for low-altitude heavily human-impacted areas.

Language: Английский

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Variations in Acorn Characteristics Between Two Mediterranean Quercus Species and Their Hybrids Through Contrasting Environmental Gradients in Spain

Plants, Journal Year: 2025, Volume and Issue: 14(5), P. 718 - 718

Published: Feb. 26, 2025

Oaks are characterized by high plasticity and intense interspecific gene flow due to natural hybridization. This generates a wide phenotypic spectrum, which creates taxonomic confusion within the genus. We compared acorn traits across temperature gradient in two types of Mediterranean Quercus (Quercus faginea Lam. Q. pyrenaica Willd.) their hybrids. Genetic groups were identified using amplified fragment length polymorphism (AFLPs) analysis. Acorns sampled from each three genetic used for comparative purposes means 15 morphological characteristics. Eight showed discriminant value among groups. The height tended decrease with decreasing temperatures gradient, whereas width exhibited opposite response. However, fruit allowed discrimination between groups, differences consistent different zones. Both number acorns produced individual size larger pyrenaica. Hybrids intermediate both parent species. Traditionally, persistence parental species absence reproductive barriers has been explained lower fitness Our results, however, do not reveal presence transgressive characteristics hybrids that could justify competitive capacity.

Language: Английский

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Spatial analysis of heavy metal and nutrient profiles concerning climate suitability for sustainable hazelnut cultivation across coastal and Inland Türkiye

Spectroscopy Letters, Journal Year: 2025, Volume and Issue: unknown, P. 1 - 13

Published: April 17, 2025

Language: Английский

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Vegetation and climate changes during the Middle to Upper Palaeolithic transition in the southwestern Mediterranean: What happened to the last Neanderthals during Heinrich stadial 4?

Quaternary Science Reviews, Journal Year: 2025, Volume and Issue: 359, P. 109345 - 109345

Published: April 28, 2025

Language: Английский

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Patterns and drivers of water-land resources nexus in arid inland river basins of northwestern China

Environmental and Sustainability Indicators, Journal Year: 2025, Volume and Issue: unknown, P. 100702 - 100702

Published: May 1, 2025

Language: Английский

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A Standardized Framework to Estimate Drought-Induced Vulnerability and Its Temporal Variation in Woody Plants Based on Growth

Forests, Journal Year: 2025, Volume and Issue: 16(5), P. 760 - 760

Published: April 29, 2025

Forests and scrubland comprise a large proportion of terrestrial ecosystems and, due to the long lifespan trees shrubs, their capacity grow store carbon as lasting woody tissues is particularly sensitive warming-enhanced drought occurrence. Climate change may trigger transition from forests in many drylands during coming decades higher resilience shrubs. However, we lack standardized frameworks compare response plants. We present framework develop an index estimate drought-induced vulnerability (DrVi) shrubs based on radial growth trajectory variability index. used tree-ring width series three tree (Pinus halepensis Mill., Juniperus thurifera L., Acer monspessulanum L.) shrub (Juniperus oxycedrus Pistacia lentiscus Ephedra nebrodensis Tineo ex Guss.) species semi-arid areas test this framework. compared DrVi values between populations explored temporal changes. Across species, strongest were found declining P. stands J. same site, while lowest A. monspessulanum, lentiscus, E. nebrodensis. populations, presented one dry sites. The stand showed steady increase value after 1980s climate shifted toward warmer drier conditions. conclude that allows comparing using general

Language: Английский

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Looking for the emotional footprint of climate change in young people: connections with education, information sources and climate action

Environmental Education Research, Journal Year: 2024, Volume and Issue: unknown, P. 1 - 25

Published: June 22, 2024

Understanding the emotional impact of climate change (CC), its education and communication processes on young people is essential to identify what motivates their engagement in action. We have analysed experiences secondary school students south Spain (N = 1,050) develop a tool for exploring CC, relationship education, participation among people. While there no clear bias towards CC overall sample, significant differences these depend variables listed above. Formal (educational grade curricular greening) tends increase worry, powerlessness fear, decrease positive emotions. Frequently, use information sources, such as traditional media, specialised sources social networks associated with higher intensity. Social are powerful influencer, while media present barriers access. Participating action (climate movements, strikes, environmental groups' activities school's voluntary activities) has clearly negative footprint group studied.

Language: Английский

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Declining trends in long-term Pinus pinea L. growth forecasts in Southwestern Spain

Dendrochronologia, Journal Year: 2024, Volume and Issue: 88, P. 126252 - 126252

Published: July 26, 2024

Warmer and drier climate is among the main factors of declining processes reported expected for future in Mediterranean forest ecosystems. Pinus pinea one conifers its largest populations are SW Spain, providing multifunctional services. The sensitivity this species to drought known, but potentiality productivity decline Spain has not been yet assessed. We modeled P. growth with covariates a large set tree ring chronologies from beginning 20th century 2010s. Then we forecast annual increments over period 2030–2100 using regionalized estimates global change model three scenarios greenhouse gas concentration. climatic conditions between winter mid spring were most significant model. predictions indicated an increase potential water stress, our forecasts described downturn trends growth, more accentuated scenario highest emissions temperatures. These first long-term Spain. Our cannot be directly applied at higher latitudes, where previous studies have shown differences climate-growth relationships, provides benchmark research forestry climate-driven decrease Southern Iberian Peninsula.

Language: Английский

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Genomic insights into climate change-induced forest dieback in Abies alba hotspots of decline

European Journal of Forest Research, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 18, 2024

Abstract Understanding adaptive genetic responses to climate change is an issue of utmost importance improve conservation policies and management. This study deeps on it, focusing rear-edge silver fir ( Abies alba ) forests, where decline has been reported linked climatic stressors, such as warming recurrent drought events. Hotspots coldspots forest mortality were defined. Different sets single nucleotide polymorphisms (SNPs), namely genome-wide adaptive, used their characteristics, aiming identify differences in diversity between vigor classes (declining non-declining trees) age cohorts (adult trees saplings). Global DNA methylation levels assessed investigate a possible role epigenetic processes adaptation stressful environments. Parentage relatedness analysis conducted track the lineage from each site. Our findings indicate that, even though SNPs seem provide more insightful information than set, optimal approach for evolutionary studies combination both. Changes genomic observed classes, revealing existence molecular basis behind ongoing events forests. Besides, trees’ relatives display higher mixture origins coldspots, which could temporary refuge species’ potential. All all, both characteristics should be considered order comprehend how respond stress achieve change.

Language: Английский

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Shrinking horizons: Climate-induced range shifts and conservation status of hickory trees (Carya Nutt.)

Ecological Informatics, Journal Year: 2024, Volume and Issue: unknown, P. 102910 - 102910

Published: Nov. 1, 2024

Language: Английский

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