Construction of a cold island network for the urban heat island effect mitigation

The Science of The Total Environment, Journal Year: 2024, Volume and Issue: 915, P. 169950 - 169950

Published: Jan. 9, 2024

Language: Английский

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Identifying priority areas for ecological conservation and restoration based on circuit theory and dynamic weighted complex network: A case study of the Sichuan Basin

Ecological Indicators, Journal Year: 2023, Volume and Issue: 155, P. 111064 - 111064

Published: Oct. 12, 2023

Regional ecological security is a pressing issue in the context of escalating human-environment conflicts. Ecological networks(ENs), fundamental tool for characterizing ecosystems, have enabled further quantitative analysis at micro level by integrating with complex networks recent years. However, most studies neglect unreliability unweighted and dynamic characteristics ENs. This paper takes Sichuan Basin as research area adopts following methods. Firstly, it integrates landscape ecology ecosystem services to construct ENs using Linkage Mapper. Secondly, introduces cost-weighted distance weight build identifies potential pivot sources key corridors based on topological features weighted 2000, 2010, 2020. Thirdly, applies circuit theory detect pinchpoints barrier points within priority areas conservation restoration. The results show that study are denser northern southern sides, some change direction due variations resistance surfaces morphology. Through networks, 27 25 identified; then, 28 10 restoration these extracted theory. reveals certain correlation between distribution nodes water bodies. Furthermore, comparing network, we find network more reasonable, 64.2% showing lower betweenness centrality than reflecting obstacles urbanization poses networks. explores impact constantly changing overall their components through analysis. evolving reflect feedback external environmental changes, well real Therefore, findings this provide valuable references governance efforts Basin, promoting regional advancement civilization.

Language: Английский

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Construction and optimization of ecological network in inland river basin based on circuit theory, complex network and ecological sensitivity: A case study of Gansu section of Heihe River Basin

Ecological Modelling, Journal Year: 2023, Volume and Issue: 488, P. 110578 - 110578

Published: Dec. 12, 2023

Language: Английский

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Habitat Loss in the IUCN Extent: Climate Change-Induced Threat on the Red Goral (Naemorhedus baileyi) in the Temperate Mountains of South Asia

Biology, Journal Year: 2024, Volume and Issue: 13(9), P. 667 - 667

Published: Aug. 27, 2024

Climate change has severely impacted many species, causing rapid declines or extinctions within their essential ecological niches. This deterioration is expected to worsen, particularly in remote high-altitude regions like the Himalayas, which are home diverse flora and fauna, including mountainous ungulates. Unfortunately, of these species lack adaptive strategies cope with novel climatic conditions. The Red Goral (Naemorhedus baileyi) a cliff-dwelling classified as “Vulnerable” by IUCN due its small population restricted range extent. most all goral residing temperate mountains northeastern India, northern Myanmar, China. Given population, this highly threatened climate habitat disruptions, making mapping modeling crucial for effective conservation. study employs an ensemble approach (BRT, GLM, MARS, MaxEnt) distribution assess distribution, suitability, connectivity addressing critical gaps understanding. findings reveal deeply concerning trends, model identified only 21,363 km2 (13.01%) total extent suitable under current limited alarming, it leaves very little refuge thrive. Furthermore, situation compounded fact that around 22.29% falls protected areas (PAs), further constraining species’ ability survive landscape. future projections paint even degraded scenarios, predicted decline over 34% excessive fragmentation In addition, present identifies precipitation seasonality elevation primary contributing predictors species. nine designated transboundary PAs among them highlight role supporting survival time. Moreover, Dibang Wildlife Sanctuary (DWLS) Hkakaborazi National Park revealed largest scenario. highest mean was found between DWLS Mehao (0.0583), while lowest observed Kamlang Namdapha (0.0172). also suggests strategic management planning vital foundation research conservation initiatives, aiming ensure long-term natural habitat.

Language: Английский

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Rethinking connectivity modeling for high-mobility ungulates: insights from a globally endangered equid

Landscape Ecology, Journal Year: 2024, Volume and Issue: 39(3)

Published: March 12, 2024

Abstract Context Maintaining connectivity is crucial for wildlife conservation in human-occupied landscapes. Structural modeling (SCM) attempts to quantify the degree which physical features facilitate or impede movement of individuals and has been widely used identify corridors, but its accuracy rarely validated against empirical data. Objectives We evaluated SCM’s ability suitable habitat corridors onagers ( Equus hemionus onager ) through a comparison with functional (i.e., actual individuals) using satellite tracking Methods MaxEnt predict three SCM approaches: circuit theory, factorial least cost path, landscape approaches corridors. The performance was independently collected GPS telemetry Results Onagers selected water sources dense vegetation while avoiding areas grazed intensely by livestock. SCMs identified similar were interrupted roads, affecting major high-flow overlapped about 21%. Conclusion Movement derived from did not align locations intensity model. This finding suggests that might have tendency overestimate resistance low suitability. Therefore, may adequately capture individual decisions selection movement. To protect linking habitat, data on data) can be coupled better understand movements populations as consequence features.

Language: Английский

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Advances and challenges in ecological connectivity science

Ecology and Evolution, Journal Year: 2024, Volume and Issue: 14(9)

Published: Sept. 1, 2024

Maintaining and restoring ecological connectivity will be key in helping to prevent reverse the loss of biodiversity. Fortunately, a growing body research conducted over last few decades has advanced our understanding science, which help inform evidence-based conservation actions. Increases data availability computing capacity have helped dramatically increase ability model functional using more sophisticated models. Keeping track these advances can difficult, even for scientists practitioners. In this article, we highlight some from past decade outline many remaining challenges. We describe efforts biological realism models by, example, isolating movement behaviors, population parameters, directional movements, effects climate change. also discuss considerations when focal or multiple species. Finally, reflect on how account uncertainty transparency reproducibility situations where decisions may require forgoing sophistication simple approaches.

Language: Английский

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Multi‐Scale Applicability Analysis of Three Ecological Network Construction Methods in Resilience Assessment

Land Degradation and Development, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

ABSTRACT Anthropogenic interference causes ecological fragmentation and vulnerability, weakening urban ecosystems' adaptive capacity. The network is based on the principles of landscape ecology, connecting resource patches through linear corridors to protect biodiversity integrity, enhance environmental carrying capacity, improve ecosystem resilience. However, current research resilience often relies single methods scales, overlooking potential discrepancies between different approaches scales. This study uses Zhejiang construct networks with structural, functional, integrated at provincial, agglomeration, city levels. performance these in protecting structure, maintaining function, ensuring overall was compared, yielding following results: First, spatial output consistency source areas across scales for three ranged from 50.48% 97.81%. Second, approach not optimal all goals. structure‐oriented method demonstrated cross‐scale applicability structural goal, while function‐oriented strategy performed well functional Third, scale analysis showed results provincial agglomeration levels when meeting same objectives, but level. By expanding methodologies perspectives field resilience, this assesses It found that do always effectively coordinate multiple protection objectives; thus, large‐scale strategies cannot be directly applied smaller practical applications. proposes validates a multi‐scale, multi‐method framework assessing networks. reveals differences methods, providing valuable theoretical insights guidance future particularly regarding

Language: Английский

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Gradient diffusion entropy corrected ALNS optimization for vegetation topology interaction networks

Ecological Indicators, Journal Year: 2025, Volume and Issue: 170, P. 113044 - 113044

Published: Jan. 1, 2025

Language: Английский

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Prioritizing Protection and Restoration Areas Based on Ecological Security Pattern with Different Resistance Assignments

Land, Journal Year: 2025, Volume and Issue: 14(2), P. 349 - 349

Published: Feb. 8, 2025

Balancing socio-economic development with ecological protection amid rapid urbanization is a pressing global issue. The security pattern (ESP) follows the reciprocal relationship between and function to conserve processes, providing an effective approach address this problem. However, most studies have adopted single subjective assignment method for resistance factors, lacking exploration of impact various methods on ESP. Taking Fuzhou metropolitan area as case, study proposes different methods: favorable, moderate, unfavorable. By applying circuit theory, it constructs ESP identifies critical areas restoration. findings show that (1) cumulative threshold increases, corridors expands from 171.36 km2 1439.24 km2, moderate identified optimal approach; (2) significant differences exist in identification key under methods. 26 corridors, spanning total length 41.29 km; (3) cover 2469.79 including 13 patches pinch points, while restoration 14.55 7 barriers 21 breaking points. pinpointing proposing targeted strategies, can facilitate practical efforts, thereby achieving sustainable goal minimizing economic costs maximizing benefits.

Language: Английский

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Evolution Analysis of Ecological Security Pattern in Forest Areas Coupling Carbon Storage and Landscape Connectivity: A Case Study of the Xiaoxing’an Mountains, China

Forests, Journal Year: 2025, Volume and Issue: 16(2), P. 331 - 331

Published: Feb. 13, 2025

This study focuses on the Xiaoxing’an Mountains, examining evolution of ecological security patterns and suggesting optimization strategies by integrating carbon storage landscape connectivity, using multi-source data from 2000, 2010, 2020. The provides a comprehensive assessment region’s estimating stocks InVEST model, analyzing connectivity through MSPA, spatially extracting corridors nodes circuit theory. key findings are as follows: (1) High-value areas for primarily concentrated in southeastern northwestern forested mountain regions; (2) Ecological source predominantly southeast dispersed north, with total area peaking 2010 at 47,054.10 km2; (3) Northern dense, radiating spider-web pattern, pinch points corridor termini; sparse, mainly short, fewer points; (4) barriers increased 280% over past 20 years. Four major barrier zones were identified, all located junction forest farmland northwest, composed wetlands, drylands, rural residential areas; (5) Based evolutionary characteristics Security Pattern years, an “axis, two belts, four zones, multiple cores” planning framework was proposed, along corresponding strategies. theoretical support practical guidance enhancing regional network stability, optimizing strengthening sink functions.

Language: Английский

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