Ecogeographic Study of Ipomoea Species in Mauritius, Indian Ocean DOI Creative Commons
Yakshini Boyjnath, Ehsan Dulloo, Vishwakalyan Bhoyroo

et al.

Plants, Journal Year: 2024, Volume and Issue: 13(19), P. 2706 - 2706

Published: Sept. 27, 2024

The wild relatives of crops play a critical role in enhancing agricultural resilience and sustainability by contributing valuable traits for crop improvement. Shifts climatic conditions human activities threaten plant genetic resources food agriculture (PGRFA), jeopardizing contributions to future production security. Studies inventories the extant agrobiodiversity, terms numbers distribution patterns species their diversity, are primordial developing effective comprehensive conservation strategies. We conducted an ecogeographic study on Ipomoea assessed distribution, ecological preferences across different topographic, altitudinal, geographical, gradients, at total 450 sites Mauritius. Species maps overlaid with data highlighted specific distribution. Principal Component Analysis (PCA) revealed was influenced geographical factors. Regional richness analyses indicated varying densities, some exhibiting localized distributions while other showed diverse patterns. Field surveys identified 14 2 subspecies out 21 reported A gap ex situ germplasm collections observed several were as threatened. Further investigations more long-term monitoring effort better guide decisions proposed.

Language: Английский

The hidden order of Turing patterns in arid and semi‐arid vegetation ecosystems DOI Creative Commons
Zhenpeng Ge

Proceedings of the National Academy of Sciences, Journal Year: 2023, Volume and Issue: 120(42)

Published: Oct. 10, 2023

Vegetation Turing patterns play a critical role in the ecological functioning of arid and semi-arid ecosystems. However, long-range spatial features these have been neglected compared to short-range like patch shape wavelength. Drawing inspiration from hyperuniform structures material science, we find that vegetation pattern exhibits dispersion similar hyperuniformity. As degree hyperuniformity increases, so does water-use efficiency vegetation. This finding supports previous studies suggest represent spatially optimized self-organization ecosystems for water acquisition. The Turing-type significant slowing down near tipping point, indicating non-negligible transient dynamical behavior. Reduced rainfall not only decreases resilience steady state ecosystem but also slows rate optimization long regimes. We propose indicates after strong, short-term disturbances. Spatially heterogeneous disturbances reduce lead longer recovery times than homogeneous maintain

Language: Английский

Citations

23
Response of blue-green water to climate and vegetation changes in the water source region of China's South-North water Diversion Project DOI
Xiaoyang Li, Lei Zou, Jun Xia

et al.

Journal of Hydrology, Journal Year: 2024, Volume and Issue: 634, P. 131061 - 131061

Published: March 11, 2024

Language: Английский

Citations

7
Analysis of spatial and temporal changes in vegetation cover and its drivers in the Aksu River Basin, China DOI Creative Commons
Yongkang Ding, Yuqing Feng,

Kang Chen

et al.

Scientific Reports, Journal Year: 2024, Volume and Issue: 14(1)

Published: May 3, 2024

Abstract Exploring vegetation dynamics in arid areas and their responses to different natural anthropogenic factors is critical for understanding ecosystems. Based on the monthly MOD13Q1 (250 m) remote sensing data from 2000 2019, this study analyzed spatio-temporal changes cover Aksu River Basin predicted future change trends using one-dimensional linear regression, Mann–Kendall test, Hurst index. Quantitative assessment of magnitude drivers was performed Geodetector model. Eleven were quantified within five time periods. The influence driving normalized difference index (NDVI) each period calculated analyzed. Four main results found. (1) overall region significantly grew 2019. dominated by expected improvements, with a average 0.45. (2) Land use type, soil moisture, surface temperature, potential vapor dispersion NDVI changes, annual q -values above 0.2. (3) effect two-factor interactions greater than that single factors, especially land type interacts other extent cover. (4) interaction between moisture showed an obvious increasing trend. Current human activities had positive growth area. findings are important ecological monitoring security as well desertification control.

Language: Английский

Citations

6
Pattern dynamics of vegetation based on optimal control theory DOI

Li-Feng Hou,

Li Li, Lili Chang

et al.

Nonlinear Dynamics, Journal Year: 2024, Volume and Issue: unknown

Published: Sept. 5, 2024

Language: Английский

Citations

5
On the analytical study of predator–prey model with Holling-II by using the new modified extended direct algebraic technique and its stability analysis DOI Creative Commons

Tahir Shahzad,

Muhammad Zafarullah Baber,

Muhammad Ozair Ahmad

et al.

Results in Physics, Journal Year: 2023, Volume and Issue: 51, P. 106677 - 106677

Published: July 11, 2023

The current study is concerned with a predator–prey model functional response of Holling type II that includes prey refuge and diffusion. These types equations arise in different fields, such as biomathematics ,biophysics, polymer rheology, agriculture, thermodynamics, blood flow phenomena, aerodynamics, capacitor theory, electrical circuits, electron-analytical, chemistry, control fitting experimental data. underlying analytically investigated by technique, namely new extended direct algebraic method (NEDAM). single combined wave solutions are observed shock, complex solitary-shock, shock-singular, periodic-singular forms. rational also emerged during the derivation. stability discussed. There section about unique physical problems. 3D, 2D, line graphs plotted for values parameters.

Language: Английский

Citations

13
Modeling Climate‐Driven Vegetation Changes Under Contrasting Temperate and Arid Conditions in the Mediterranean Basin DOI Creative Commons
Marco Bianchini, Mohamed Tarhouni, Matteo Francioni

et al.

Ecology and Evolution, Journal Year: 2025, Volume and Issue: 15(1)

Published: Jan. 1, 2025

ABSTRACT This study investigates climate change impacts on spontaneous vegetation, focusing the Mediterranean basin, a hotspot for climatic changes. Two case areas, Monti Sibillini (central Italy, temperate) and Sidi Makhlouf (Southern Tunisia, arid), were selected their contrasting climates vegetation. Using WorldClim's CMCC‐ESM2 model, future vegetation distribution was predicted 2050 2080 under SSP 245 (optimistic) 585 (pessimistic) scenarios. spectral indices, NDVI (temperate area) SAVI (arid area), served as proxies, classified into three classes using K‐means (NDVI: high = mainly associated with woodlands, medium shrublands, continuous grasslands crops, low discontinuous grasslands, bare soil, rocks; SAVI: woods, olive trees, shrublands sparse soil saline areas). Classes validated ESA WorldCover 2020 data sampled via 1390 presence‐only points. A set of 33 environmental variables (topography, bioclimatic) screened Pearson correlation matrices, predictive models built four algorithms: MaxEnt, Random Forest, XG Boost, Neural Network. Results revealed increasing temperatures declining precipitation in both regions, confirming trends. Vegetation changes varied by area: temperate area, woodlands stable, but expanded. In arid gained suitable habitat, while declined pessimistic scenario. Both areas showed an upward shift grasslands. The indicated significant shifts areal conditions, affecting habitat suitability ecosystem dynamics. MaxEnt emerged most reliable algorithm small datasets, effectively predicting suitability. findings highlight redistribution altered dynamics due to change, underscoring importance these planning ecological challenges.

Language: Английский

Citations

0
Early warning signals of critical transitions in ecosystems: entropy reduction in vegetation spatial patterns DOI

Yi-Zhi Pang,

Li Li, Zhen Jin

et al.

Nonlinear Dynamics, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 13, 2025

Language: Английский

Citations

0
Association between hydroclimatic factors and vegetation health: Impact of climate change in the past and future DOI

Subhasmita Dash,

Rajib Maity

The Science of The Total Environment, Journal Year: 2025, Volume and Issue: 964, P. 178605 - 178605

Published: Jan. 26, 2025

Language: Английский

Citations

0
Paving the way to environmental sustainability: A systematic review to integrate big data analytics into high-stake decision forecasting DOI Creative Commons
Rohit Agrawal, Nazrul Islam, Ashutosh Samadhiya

et al.

Technological Forecasting and Social Change, Journal Year: 2025, Volume and Issue: 214, P. 124060 - 124060

Published: Feb. 26, 2025

Language: Английский

Citations

0
Numerical modeling of the effects of soil moisture changes on ecosystems in the study of plant and vegetation ecology in arid zones DOI Open Access

Xueting Liu,

Tengfei Li,

Shengtianzi Dong

et al.

Applied Mathematics and Nonlinear Sciences, Journal Year: 2025, Volume and Issue: 10(1)

Published: Jan. 1, 2025

Abstract Vegetation is an important part of the ecosystem, so it necessary to study changes vegetation soil moisture in arid regions. In this study, Xinjiang, a typical region Northwest China, was selected as area. Based on total primary productivity (TPP) and land cover type data from MODIS remote sensing data, reanalysis ERA5, precipitation potential evapotranspiration CRU, Xinjiang calculated over 20-year period. Combined with collected simulation analysis ecological water demand period carried out based information, well model. The mean value limiting coefficient has small range variation, fluctuating around between 0.344 0.402. per unit area grasses, shrubs, trees at full fertility stage varied ranges 51-106 mm, 125-247 181-393 respectively, having larger demand. content different types zone ranked as: Mobile sandy > 2-year 5-year naturally restored artificial + artificially land, moisture-rich soils were able maintain high level species diversity. results paper provide very positive guidance for scientific management ecosystems Xinjiang.

Language: Английский

Citations

0