Modeling the Impacts of Climate Change on Potential Distribution of Betula luminifera H. Winkler in China Using MaxEnt

Forests, Journal Year: 2024, Volume and Issue: 15(9), P. 1624 - 1624

Published: Sept. 14, 2024

Betula luminifera H. Winkler, a fast-growing broad-leaved tree species native to China’s subtropical regions, possesses significant ecological and economic value. The species’ adaptability ornamental characteristics make it crucial component of forest ecosystems. However, the impacts global climate change on its geographical distribution are not well understood, necessitating research predict potential shifts under future scenarios. Our aims were forecast impact suitable B. across China using MaxEnt model, which is recognized for high predictive accuracy low sample data requirement. Geographical coordinate points collected from various databases verified redundancy. Nineteen bioclimatic variables selected screened correlation avoid overfitting in model. model was optimized ENMeval package, evaluated Akaike Information Criterion Correction (delta.AICc), Training Omission Rate (OR10), Area Under Curve (AUC). predicted current scenarios based Shared Socio-economic Pathways (SSPs). demonstrated with an AUC value 0.9. dominant environmental influencing annual precipitation, minimum temperature coldest month, standard deviation seasonality. habitat area location significantly different scenarios, complex dynamics expansion contraction. centroid also migrate, indicating response changing climatic conditions. findings underscore importance optimization enhancing provide valuable insights development conservation strategies management plans address challenges posed by change.

Language: Английский

Distributional Responses of Five Betula (Betulaceae) Species to Future Climate Change in China

Forests, Journal Year: 2025, Volume and Issue: 16(3), P. 400 - 400

Published: Feb. 24, 2025

Global climate change has the potential to modify habitats of plant species, thereby exerting a direct impact on biodiversity. Betula belonging Betulaceae family and commonly known as birch trees, are widely distributed in China. They possess crucial ecological economic value. However, few studies have examined potentially suitable distribution species China under influence change. Therefore, it is great significance explore biodiversity patterns response future In this study, we selected five representative collected their records from Based 19 variables, main environmental factors for each were identified optimal parameter combinations determined. The MaxEnt model was employed construct models these both currently future. results indicated that AUC TSS values greater than 0.903, suggesting high level accuracy. most important variable impacting temperature seasonality standard deviation. Among utilis possesses largest total area, covering 313.42 × 104 km2. Additionally, warming, studied will shift toward higher latitudes altitudes. Species southwestern region may migrate where effects mitigated, whereas low-latitude southern regions face substantial threat due northern areas, greenhouse gas emission scenarios, experiencing expansion much smaller compared area contraction predicted. Our findings reveal responses provide valuable insights guiding conservation utilization forest resources.

Language: Английский

Plant traits regulated metal(loid)s in dominant herbs in an antimony mining area of the karst zone, China

Ecology and Evolution, Journal Year: 2024, Volume and Issue: 14(8)

Published: Aug. 1, 2024

Abstract Understanding how plant functional traits respond to mining activities and impact metal(loid)s accumulation in dominant species is crucial for exploring the driving mechanisms behind community succession predicting ecological restoration potential of these plants. In this study, we investigated four herbaceous ( Artemisia argyi , Miscanthus sinensis Ficus tikoua Ageratina adenophora ) growing on antimony (Sb) sites (MS) with high Sb arsenic (As) levels, as well non‐mining (NMS). The aim was analyze variations their contribution As concentrations Our results indicate that enhanced soil nitrogen (N) limitation phosphorus (P) enrichment, while significantly reducing height three species, except F. . absorbed more calcium (Ca) ensure higher tolerance which related activation Ca signaling pathways defense mechanisms. Furthermore, were dependent metal(loid) levels element stoichiometry. Overall, findings highlight regulatory role concentrations, warranting widespread attention further study future.

Language: Английский