Tree height, leaf thickness and seed size drive Caatinga plants' sensitivity to climate change

Journal of Biogeography, Journal Year: 2023, Volume and Issue: 50(12), P. 2057 - 2068

Published: Sept. 10, 2023

Abstract Aim The Anthropocene climate crisis may shift the distribution range of various species. Global Climate Models predict an increase in temperature and changes precipitation across Brazilian tropical semiarid region. Based on joint analysis functional traits plant models, we aim to identify which define vulnerability plants change. Location Caatinga, Brazil. Taxon Trees‐shrub plants. Methods We selected 36 species common at least 25% floristic phytosociological surveys made modelled both current future spatial these investigated whether traits, such as height, leaf area, thickness, specific stem density, seed size can explain shifts Results indicate that 58.4% are expected expand their future. These tend be shorter produce large seeds thin leaves, confer higher hydraulic safety resistance prolonged droughts. Meanwhile, 41.6% reduce ranges Most characterized tall individuals with thick leaves small seeds. Conclusion Species drought likely towards coast areas where Caatinga borders other domains. Also, low slopes plateaus. retraction taller thicker have profound implications for structure functioning ecosystems, given role ecosystem processes carbon cycle. Retractions result a reduction number local species, will impact regional biodiversity.

Language: Английский

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Characteristics, Relationships, and Anatomical Basis of Leaf Hydraulic Traits and Economic Traits in Temperate Desert Shrub Species

Life, Journal Year: 2024, Volume and Issue: 14(7), P. 834 - 834

Published: June 29, 2024

Shrubs are a key component of desert ecosystems, playing crucial role in controlling desertification and promoting revegetation, yet their growth is often impeded by drought. Leaf hydraulic traits economic both involved the process water exchange for carbon dioxide. Exploring characteristics, relationships, anatomical basis these two suites to understanding mechanism shrubs adapting arid environment. However, relationship between sets currently remains ambiguous. This study explored leaf hydraulic, economic, 19 shrub species. The findings include following: Relatively larger LT values smaller SLA were observed shrubs, aligning with "slow strategy" economics spectrum. relatively high P50

Language: Английский

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Response of Leaf Traits and Photosynthetic Fluorescence Characteristics of Fraxinus malacophylla Seedlings to Rainfall Patterns During Dry and Rainy Seasons in Southwestern China

Ecology and Evolution, Journal Year: 2024, Volume and Issue: 14(10)

Published: Oct. 1, 2024

ABSTRACT Global climate change has led to a shift in rainfall patterns. And as water is an essential ingredient for plant photosynthesis, shifts patterns will inevitably affect growth. This study was conducted Kunming, southwest China. In this study, the response of leaf traits and photosynthetic fluorescence properties Fraxinus malacophylla seedlings during dry rainy seasons investigated using natural interval 5 days (T) extended 10 (T + ) treatments monthly average control (W), with corresponding 40% increase (W decrease − ). The results showed that Pn, Gs, Tr basically all tended then increasing season generally reached highest under W treatment; Ci, mostly remained high at relative days; PI overall higher treatment throughout season. Extending beginning significantly reduced Fm; season, decreasing trend rainfall, reaching W‐treatment than days. These suggest intervals amounts are more favorable growth season; multiple rainfalls tend promote photosynthesis . reflects different survival strategies patterns, well provides theoretical basis understanding how can grow better variability future management.

Language: Английский

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Climate and soil explain contrasting intraspecific trait variability of widespread species over a large environmental gradient

Global Ecology and Conservation, Journal Year: 2024, Volume and Issue: unknown, P. e03338 - e03338

Published: Dec. 1, 2024

Language: Английский

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Root traits and plasticity differences explain complementarity between co-existing species in phosphorus-limited grassland

Plant and Soil, Journal Year: 2024, Volume and Issue: 501(1-2), P. 611 - 627

Published: Feb. 16, 2024

Language: Английский

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Ecosystem characteristics of land covers with various anthropogenic impacts in a tropical forest region of Southeast Asia

Published: April 23, 2024

Abstract. Given the severe anthropogenic pressure on tropical forests and high demand for field observations of ecosystem characteristics, it is crucial to collect such data both in pristine converted deforested land cover classes. To gain insight into characteristics forests, regrowth cashew plantations, we established an monitoring site Phnom Kulen National Park, Cambodia. Here, present observed datasets forest inventories, leaf area index, traits woody species, a fraction intercepted photosynthetically active radiation, edaphic meteorological conditions. We examined how land-use land-cover change affect species functional diversity, stand structure, conditions among three further investigated relationships between diameters at breast height tree height, estimated aboveground biomass (AGB), explored AGB. uncovered some key differences also demonstrated feasibility locally updating AGB estimates using power law functions. These findings can contribute filling gaps research, addressing global environmental challenges, supporting sustainable management.

Language: Английский

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Hydraulic Traits in Populus simonii Carr. at Stands of Categorized Ages in a Semi-Arid Area of Western Liaoning, Northeast China

Forests, Journal Year: 2023, Volume and Issue: 14(9), P. 1759 - 1759

Published: Aug. 30, 2023

Poplar plantations can acclimate to drought stress in semi-arid areas, where the variation of stand age may result varied water adaptation strategies presented as hydrodynamic performance. In this study, nine mature Populus simonii Carr. individuals were targeted sampling objects characterized three ages: young (9 yr), middle-aged (17 and near-mature (29 yr) stages a area western Liaoning, Northeast China. Hydraulic traits investigated parameters leaf pressure-volume curves, xylem embolism vulnerability hydraulic structure, wood density (WD). Results showed that osmotic potential (Ψtlp) relative content at turgor loss point cell-wall bulk elastic modulus lowest stands (−2.19 MPa; 86.71%; 13.75 MPa). Stem leaf-specific conductivity (Ks LSC) all highest stands. Xylem (P50) lethal trees (P88) increased with growth age. Young faced minimal risk failure according stomatal safety margin (SSMtlp, Ψtlp minus P50), which was consistent comprehensive evaluation results principal component analysis. WD related P88 (R2= 0.51; p < 0.05). P50 avoidance (r = 0.76; 0.05) but not efficiency (Ks). Overall, be an excellent proxy for monitoring. populations are more adaptable conditions than populations, should receive intermediate cuttings avoid exposure stress.

Language: Английский

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Differentiation in Leaf Functional Traits and Driving Factors of the Allopatric Distribution of Tetraploid and Octaploid Buddleja macrostachya in the Sino-Himalayan Region

Forests, Journal Year: 2024, Volume and Issue: 15(6), P. 1007 - 1007

Published: June 8, 2024

Leaf functional traits reflect species’ adaptive strategies and habitat requirements. Examining intra-specific variations their underlying drivers can aid in comprehending species differentiation adaptation. Here, we investigated the leaf of Buddleja macrostachya tetraploids octaploids across 18 sites Sino-Himalayan region. The environmental variables were also recorded. In this study, showed a considerable both tetraploid octaploid B. macrostachya. Redundancy analysis (RDA) revealed that cytotypes displayed higher specific area, total nitrogen phosphorus concentrations, water-use efficiency, light-use efficiency contrast to plants. These exhibited different plasticity levels taxa. A positive link was found between altitude soil P concentration geographic distribution complex, using RDA Pearson’s correlation. Our findings suggest divergent ecological strategies, conservative acquisitive respectively. adaptability within complex is enhanced by combination high phenotypic distinct key traits. Furthermore, abiotic factors influenced allopatric pattern

Language: Английский

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Future Climate Change Facilitates the Herbaceous Drought-Tolerant Species Distribution than Woody Species

Published: Jan. 1, 2024

Language: Английский

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Leaf Functional Traits and Their Influencing Factors in Six Typical Vegetation Communities

Plants, Journal Year: 2024, Volume and Issue: 13(17), P. 2423 - 2423

Published: Aug. 30, 2024

Leaf functional traits (LFTs) have become a popular topic in ecological research recent years. Here, we measured eight LFTs, namely leaf area (LA), specific (SLA), thickness (LT), dry matter content (LDMC), carbon (LCC), nitrogen (LNC), phosphorus (LPC), and potassium (LKC), six typical vegetation communities (sclerophyllous evergreen broad-leaved forests, temperate coniferous cold-temperate alpine deciduous shrubs, meadows, scree sparse vegetation) the Chayu River Basin, southeastern Qinghai-Tibet Plateau. Our aim was to explore their relationships with evolutionary history environmental factors by combining RLQ fourth-corner method, method of testing phylogenetic signal. The results showed that (i) there were significant differences LFTs among communities; (ii) K values less than 1; (iii) except for LCC, all other more sensitive changes. Among these traits, LA most affected factors, followed LNC. It study minimally influenced development but significantly This further verified adaptability plants changes provides scientific basis predicting distribution diffusion direction under global change conditions.

Language: Английский

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