Range‐wide intraspecific variation reflects past adaptation to climate in a gypsophile Mediterranean shrub

Journal of Ecology, Journal Year: 2024, Volume and Issue: 112(7), P. 1533 - 1549

Published: May 13, 2024

Abstract Phenotypic differences among populations stem from the interaction between neutral and adaptive processes, phenotypic plasticity. Although clinal trait variation along climatic gradients often evolves in widely distributed species, it is unknown whether substrate specialization, such as that of Mediterranean gypsum plants, has constrained adaptation to climate. Using a common garden experiment with two contrasting watering treatments, we quantified plasticity, assessed evidence for footprints selection using F ST – Q comparisons, evaluated ecological factors driving genetically based differentiation 11 encompassing full environmental range shrub Lepidium subulatum. We found genetic related differences, warmer drier sites showing lower specific leaf area N, earlier phenology, greater water use efficiency fitness. Multiple lines suggest this was driven by past divergent rather than processes. All showed high indicating plasticity not been selected against, even harsher conditions. Synthesis . Our results indicate despite strong occurs species. However, also mesic may be particularly vulnerable future climate change given their relatively fitness under both wet dry

Language: Английский

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Phenotypic plasticity and genetic variation of Prosopis juliflora (Sw.) DC. across diverse rangelands in northeastern Ethiopia

Ecological Processes, Journal Year: 2025, Volume and Issue: 14(1)

Published: Jan. 10, 2025

Abstract Introduction Prosopis juliflora (Sw.) DC. substantially threatens dry rangelands due to its invasive attributes, exacerbated by climate change, land-use practices, and anthropogenic activities. Despite the urgent need understand ecological impacts, comprehensive studies examining relationship between functional traits reproductive fitness across diverse habitats scenarios are lacking. This study investigated of in Afar region Ethiopia, focusing on three types: dry-season grazing lands, wet-season wildlife reserves. Methods Plant samples were collected from 192 plots assess their adaptive potential genetic variation, alongside relevant physiographic climatic data. approach aims elucidate contributions these factors observed variation plasticity rangeland types differing land use intensity. Generalized linear mixed models co-occurrence networks employed analyze complex interaction. Results Our findings revealed significant fruiting onset duration, with lands demonstrating a shorter duration compared Genetic was for total seed mass number, indicating robust adaptability. The relative growth rate higher reserves highlighting advantages nutrient-rich environments. Additionally, analysis identified soil type as critical factor influencing trait performance. Conclusions underscores targeted management strategies mitigate impacts , emphasizing role nutrients fitness. offer valuable insights into dynamics species ecosystems inform conservation efforts.

Language: Английский

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Drivers of phenotypic variation and plasticity to drought in populations of a Mediterranean shrub along an environmental gradient

Environmental and Experimental Botany, Journal Year: 2024, Volume and Issue: 228, P. 106011 - 106011

Published: Oct. 18, 2024

Language: Английский

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Transgenerational plasticity to drought: contrasting patterns of non-genetic inheritance in two semi-arid Mediterranean shrubs

Annals of Botany, Journal Year: 2024, Volume and Issue: 134(1), P. 101 - 116

Published: March 14, 2024

Intra- and transgenerational plasticity may provide substantial phenotypic variation to cope with environmental change. Since assessing the unique contribution of maternal environment offspring phenotype is challenging in perennial, outcrossing plants, little known about evolutionary ecological implications its persistence over life cycle these species. We evaluated how intra- interplay shape adaptive responses drought two perennial Mediterranean shrubs.

Language: Английский

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Patterns, timing, and environmental drivers of growth in two coexisting green‐stemmed Mediterranean alpine shrubs species

New Phytologist, Journal Year: 2023, Volume and Issue: 241(1), P. 114 - 130

Published: Sept. 27, 2023

Summary The Mediterranean alpine is one of the most vulnerable ecosystems under future environmental change. Yet, patterns, timing and controls plant growth are poorly investigated. We aimed at an improved understanding processes, as well stem swelling shrinking by examining two common coexisting green‐stemmed shrub species. Using dendrometers to measure daily diameter changes, we separated these changes into water‐related irreversible growth. Implementing correlation analysis, linear mixed effects models, partial least squares regression on time series with corresponding soil temperature moisture data predictors, found species‐specific patterns related different drought‐adaptive strategies. show that winter‐cold‐adapted species Cytisus galianoi uses a drought tolerance strategy combined high ecological plasticity, is, thus, able gain competitive advantages climate warming. In contrast, Genista versicolor restricted narrower niche using winter‐cold escape avoidance strategy, which might be disadvantage in changing climate. Pregrowth conditions were more relevant than during growth, controlling species' resource availability. Thus, studies focusing current driver constellations may fail predict species’ its potential performance.

Language: Английский

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Plasticity drives the trait variation of a foundation marsh species migrating into coastal forests with sea‐level rise

Ecosphere, Journal Year: 2024, Volume and Issue: 15(8)

Published: Aug. 1, 2024

Abstract Climate‐driven ecosystem shifts occur through turnover in the foundation species which structure landscape. Therefore, to predict fate of areas undergoing climate‐driven shifts, one approach is characterize ecological and evolutionary responses along dynamic environmental gradients. One such gradient ecotone between tidal marshes maritime forests coastal US Mid‐Atlantic region where accelerated sea‐level rise storms increased frequency intensity are driving forest dieback inland marsh migration. structured by grasses act as species, these exhibit trait variation across their distribution from established interior migration front. We conducted a reciprocal transplant experiment with Spartina patens , dominant high grass populations range edge understory at three sites. monitored conditions habitats, measured plant traits (above‐ belowground biomass, specific leaf area, N C concentrations) transplanted reference non‐transplanted individuals, used microsatellite markers determine genetic identity transplants quantify clonality habitats Individuals into exhibited plastic shift resource allocation aboveground structures associated light acquisition, making them more morphologically similar individuals sampled habitat. Clonal diversity distance among were relatively two sites, but all sites trans‐habitat plasticity regardless clonal or lack thereof. grown showed lower vegetative reproductive fitness. Nevertheless, this allowed that recoup significant biomass only single growing season. will facilitate persistence colonizing S. under suboptimal shade until increases availability, ultimately promoting continued rise.

Language: Английский

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Diverse leaf functional and phenotypic traits in hybrid oak individuals: Unveiling genetic variation, adaptation, and evolutionary potential within Quercus Species

Forest Ecology and Management, Journal Year: 2024, Volume and Issue: 561, P. 121830 - 121830

Published: April 5, 2024

Language: Английский

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Global vegetation productivity has become less sensitive to drought in the first two decades of the 21st century

International Journal of Applied Earth Observation and Geoinformation, Journal Year: 2024, Volume and Issue: 135, P. 104297 - 104297

Published: Dec. 1, 2024

Language: Английский

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