Research on ecological network construction and identification of important elements based on morphological spatial pattern analysis and circuit theory in Pingxiang City

Journal for Nature Conservation, Journal Year: 2025, Volume and Issue: unknown, P. 126902 - 126902

Published: March 1, 2025

Language: Английский

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Transients versus network interactions give rise to multistability through trapping mechanism

Chaos An Interdisciplinary Journal of Nonlinear Science, Journal Year: 2025, Volume and Issue: 35(3)

Published: March 1, 2025

In networked systems, the interplay between dynamics of individual subsystems and their network interactions has been found to generate multistability in various contexts. Despite its ubiquity, specific mechanisms ingredients that give rise from such remain poorly understood. a coupled excitable units, we demonstrate this generating occurs through competition units’ transient coupling. Specifically, diffusive coupling units reinjects them into excitability region state space, effectively trapping there. We show mechanism leads coexistence multiple types oscillations: periodic, quasi-periodic, even chaotic, although separately do not oscillate. Interestingly, find attractors emerge different bifurcations—in particular, periodic either saddle–node limit cycles bifurcations or homoclinic bifurcations—but all cases, reinjection is present.

Language: Английский

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From deficit to balance: Identifying blue-green infrastructure networks based on trade-offs and synergies between water and terrestrial ecosystem services in a water sensitive region

Ecohydrology & Hydrobiology, Journal Year: 2025, Volume and Issue: unknown, P. 100656 - 100656

Published: April 1, 2025

Language: Английский

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Integrating key species distribution and ecosystem service flows to build directed ecological network: Evidence from the Shiyang River Basin, China

Journal of Environmental Management, Journal Year: 2025, Volume and Issue: 381, P. 125183 - 125183

Published: April 9, 2025

Language: Английский

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Promoting the conservation of the leopard in North China based on habitat suitability and connectivity

Global Ecology and Conservation, Journal Year: 2024, Volume and Issue: 50, P. e02817 - e02817

Published: Jan. 23, 2024

Protection of large carnivores is a global biodiversity conservation issue. Habitat fragmentation has had negative impact on the abundance and distribution leopards (Panthera pardus) worldwide. Understanding survival in these human dominated fragmented landscapes major challenge. This study was conducted to assess habitat suitability for North China leopard pardus japonensis) China, determine connectivity corridors potential areas restoration support leopards. We used occurrence points maximun entropy model examine suitability. Based graph-based metric (the probability connectivity, PC), we evaluated within each protected area. Through circuit theory modeling least-cost path method, determined important that were most likely improve habitat. The results showed forest coverage population density (POP) variables contributed prediction, with positive association non-linear relationship increasing POP. Approximately 17% core suitable habitats located current areas. PC value area positively correlated its (r=0.475, p<0.05). mainly between groups or (composed highly connected areas). highlighted protection should be carried out multiple scales, such as area, areas, groups. research methods proposed our could also provide insights sustainable management other carnivores.

Language: Английский

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Building ecosystem services-based ecological networks in energy and chemical industry areas

Ecological Modelling, Journal Year: 2024, Volume and Issue: 498, P. 110897 - 110897

Published: Oct. 3, 2024

Language: Английский

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Nonlinear Effects of Human Settlements on Seasonal Land Surface Temperature Variations at the Block Scale: A Case Study of the Central Urban Area of Chengdu

Land, Journal Year: 2025, Volume and Issue: 14(4), P. 693 - 693

Published: March 25, 2025

The land surface temperature (LST) in the central urban area has shown a consistent upward trend over years, exacerbating heat island (SUHI) effect. Therefore, this study focuses on of Chengdu, using blocks as research scale. Gradient Boosting Decision Tree (GBDT) model and SHAP values are employed to explore nonlinear effects human settlements (HS) LST across different seasons. results show that (1) At block scale, overall impact HS all four seasons tracks following order: built environment (BE) > landscape pattern (LP) socio-economic development (SED). (2) LP is most important factor affecting summer, while BE greatest influence during spring, autumn, winter. (3) Most indicators exhibit seasonal variations their LST. impervious (ISA) exhibits significant positive autumn. In contrast, nighttime light index (NTL) functional mix degree (FMD) exert negative Additionally, normalized difference vegetation (NDVI) negatively affects both spring summer. Moreover, connectivity (CNT) density (FPD) demonstrate notable threshold (4) Certain interaction effects, some combinations these can effectively reduce This reveals HS–LST interactions through multidimensional analysis, offering block-scale planning strategies for sustainable thermal optimization.

Language: Английский

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Habitat Protection in Urban-Rural Fringes Through Coordinated Ecological Network Construction and Territorial Planning

Published: Jan. 1, 2024

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Language: Английский

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Seasonality in functional connectivity: A case study with the American marten in Forillon National Park

Ecosphere, Journal Year: 2024, Volume and Issue: 15(6)

Published: June 1, 2024

Abstract Protected areas are essential tools for reducing loss of global biodiversity. To fulfill their ecological functions, protected must be connected to surroundings, a requirement that is difficult meet in landscapes intensively disturbed by anthropogenic activities. Therefore, protecting movement corridors at the edges crucial, especially species with broad habitat needs, such as American marten ( Martes americana ). However, selection and space use patterns dynamic processes, so we could expect functional connectivity would vary temporally response changing environmental conditions levels human In this study, aimed predicting location Forillon National Park its periphery during two contrasted periods (snow‐free: May–November; snow‐covered: December–April). We used “seasonal” resource functions identify core (interpreted circuit “nodes”) CircuitScape delineate between them based on electrical theory. Habitat differed periods, martens avoiding open areas, high elevations road proximity snow‐free period, while closer secondary roads but selecting primary housing structures snow‐covered period. Consequently, partially periods. Functional was favored presence forest patches both being constrained environments, Our study highlights importance modeling fine temporal scales order provide requirements each period annual cycle.

Language: Английский

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Habitat Protection in Urban–Rural Fringes through Coordinated Ecological Network Construction and Territorial Planning

Land, Journal Year: 2024, Volume and Issue: 13(7), P. 935 - 935

Published: June 27, 2024

Urban–rural fringes (URFs) are crucial for biodiversity yet often neglected in conservation efforts. This study refines URF habitat evaluation and integrates it into a coordinated ecological network (EN) territorial planning framework. Using Qingpu District, Shanghai as case study, we defined its via k-means clustering of night-time light data applied the InVEST model, MSPA, Integrated Habitat Value, Patch Importance, Betweenness Centrality analyses to identify high-value habitats. Furthermore, constructed EN using circuit theory evaluated impact sources on connectivity construction costs. Our findings reveal that integrating increased indices significantly (α by 127.18%, β 47.00%, γ 33.4%) decreased costs (CR index 0.07). Despite these benefits, under China’s “Three Zones Three Lines” policy, 78.18% Qingpu’s remain unprotected, with 56.78% at risk conversion land. proposes comprehensive system habitats strategic recommendations their incorporation regional ENs, thus informing policy making more inclusive conservation.

Language: Английский

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