scholarly journals Promoting landscape connectivity of highly urbanized area: An ecological network approach

2021 ◽  
Vol 125 ◽  
pp. 107487
Author(s):  
Shuang Wang ◽  
Maoquan Wu ◽  
Mengmeng Hu ◽  
Chen Fan ◽  
Tao Wang ◽  
...  
Keyword(s):  
Landscape Connectivity ◽  
Network Approach ◽  
Ecological Network ◽  
Urbanized Area

scholarly journals Connecting governance interventions to ecosystem services provision: A social‐ecological network approach

2020 ◽  
Author(s):  
Jean Paul Metzger ◽  
Pedro Fidelman ◽  
Claudia Sattler ◽  
Barbara Schröter ◽  
Martine Maron ◽  
...  
Keyword(s):  
Ecosystem Services ◽  
Network Approach ◽  
Ecological Network ◽  
Social Ecological

A social-ecological network approach for understanding wildfire risk governance

2019 ◽  
Vol 54 ◽  
pp. 113-123 ◽  
Author(s):  
Matthew Hamilton ◽  
Alexandra Paige Fischer ◽  
Alan Ager
Keyword(s):  
Risk Governance ◽  
Network Approach ◽  
Ecological Network ◽  
Wildfire Risk ◽  
Social Ecological

scholarly journals Spatio-Temporal Dynamics of Landscape Connectivity and Ecological Network Construction in Long Yangxia Basin at the Upper Yellow River

Land ◽  
2020 ◽  
Vol 9 (8) ◽  
pp. 265 ◽  
Author(s):  
Fangning Shi ◽  
Shiliang Liu ◽  
Yi An ◽  
Yongxiu Sun ◽  
Shuang Zhao ◽  
...  
Keyword(s):  
Temporal Dynamics ◽  
Yellow River ◽  
Landscape Connectivity ◽  
Natural Habitat ◽  
Cultivated Land ◽  
Landscape Resistance ◽  
Ecological Network ◽  
Natural Habitats ◽  
Yellow River Valley ◽  
Upper Yellow River

Analyzing multi-scale changes in landscape connectivity is an important way to study landscape ecological processes and also an important method to maintain regional biodiversity. In this study, graph-based connectivity was used to analyze the dynamics of the connectivity of natural habitats in the Long Yangxia basin of upper Yellow River valley from 1995 to 2015. We used the core areas of the nature reserves as the source regions to construct ecological networks under different thresholds, so as to identify key areas that can maintain overall landscape connectivity. The results showed that, from 1995 to 2015, the landscape connectivity in the study area increased for the first 10 years, and, since 2005, has declined. On a spatial scale, we found that both the connectivity of the ecological network and the length of the corridor increased with landscape resistance. Our analysis demonstrates the importance of the natural habitat in the southern part of the study area where connectivity was higher, as well as the sensitivity of connectivity of the northern area to human activities. Both large and medium patches contribute greatly to the overall landscape connectivity, while attention needs to be paid to the protection and management of small patches as they played “stepping stone” roles in maintaining and improving landscape connectivity. The proportions of landscape types that served as corridors, listed in order of their contribution to connectivity, were grassland, forestland, wetland and cultivated land. This suggests that, in addition to focusing on the protection of grassland and forest land, the reasonable planning and utilization of wetland and cultivated land will also have an impact on landscape connectivity. In addition, the protection of and improvement in habitats in the Sanjiangyuan Nature Reserve is of great significance to enhance landscape connectivity. Our study provides a scientific basis to support and improve regional landscape connectivity and biodiversity conservation over the next decade.

scholarly journals Identifying Ecological Corridors and Networks in Mountainous Areas

2021 ◽  
Vol 18 (9) ◽  
pp. 4797
Author(s):  
Di Zhou ◽  
Wei Song
Keyword(s):  
Landscape Connectivity ◽  
Effective Means ◽  
Ecological Networks ◽  
Habitat Destruction ◽  
Spatial Pattern Analysis ◽  
Cultivated Land ◽  
Ecological Network ◽  
Network Efficiency ◽  
Mountain Areas ◽  
Ecological Corridors

Since the 1950s, human activities have been driving economic development and land changes, hindering the conservation of biological habitats and landscape connectivity. Constructing ecological networks is an effective means to avoid habitat destruction and fragmentation. Mountain areas are hotspots of biological habitats and biodiversity; however, the pace of urbanization in mountain areas is also accelerating. To protect an ecosystem more effectively, it is necessary to identify ecological corridors and ecological networks. Therefore, based on the Minimal Cumulative Resistance model and taking Chongqing in China as an example, the identification of potential ecological corridors and the construction of an ecological network in Chongqing were realized using the Linkage Mapper software. The results were as follows: (1) From 2005 to 2015, the patch area of cultivated land and grassland in Chongqing decreased by 0.08% and 1.46%, respectively, while that of built-up areas increased by 1.5%. The fragmentation degree of cultivated land was higher, and the internal connectivity of forestry areas was worse. (2) In total, 24 ecological sources were selected, and 87 potential ecological corridors and 35 ecological nodes were generated using the Morphological Spatial Pattern Analysis and the Conefor2.6 software. The total length of the ecological network in Chongqing is 2524.34 km, with an average corridor length of 29.02 km. (3) The overall complexity and network efficiency are high, but the spatial distribution of ecological corridors is uneven, especially in the southwest of Chongqing.

scholarly journals Author Correction: An ecological network approach to predict ecosystem service vulnerability to species losses

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Aislyn A. Keyes ◽  
John P. McLaughlin ◽  
Allison K. Barner ◽  
Laura E. Dee
Keyword(s):  
Ecosystem Service ◽  
Network Approach ◽  
Ecological Network

scholarly journals Community-level demographic consequences of urbanization: an ecological network approach

2014 ◽  
Vol 83 (6) ◽  
pp. 1409-1417 ◽  
Author(s):  
Amanda D. Rodewald ◽  
Rudolf P. Rohr ◽  
Miguel A. Fortuna ◽  
Jordi Bascompte
Keyword(s):  
Community Level ◽  
Network Approach ◽  
Ecological Network

scholarly journals Graph-based multi-attribute decision making: impact of road fencing on ecological network

2015 ◽  
Vol 10 (2) ◽  
pp. 105-111
Author(s):  
Andrius Kučas
Keyword(s):  
Patch Size ◽  
Landscape Connectivity ◽  
Decision Support Techniques ◽  
Conservation Priorities ◽  
Minimum Length ◽  
Habitat Patch ◽  
Ecological Network ◽  
Habitat Patches ◽  
The Road ◽  
Spatial Graph

Conservation and transport decision makers must deal with many competing criteria in order to find the optimal connectivity of habitat patches in order to maximize organisms’ ability to traverse the landscape successfully. Thus, there is an increasing interest in prioritization of habitat patches by their contribution to overall landscape connectivity. Many different indices can be used to quantify structural and functional landscape connectivity. However, landscape connectivity indices alone do not clearly define conservation priorities for habitat patches. In this study priority values for each available habitat patch were calculated using multiple criteria spatial decision support techniques. As criteria for prioritization, spatial graph-based element properties (habitat patch size, number of corridors connected to a habitat patch, etc.) were characterized for each habitat patch. Graph-based connectivity rules for each habitat patch within a landscape (in conjunction with largest patch size, maximum number of corridors with a minimum length connected to a habitat patch, etc.) were defined and applied. Each criterion’s importance was assessed. Criteria-based ranking of habitat patches within a graph better indicated exact critical habitat patches than connectivity index alone, especially when changes in network occur. Simulations in the case study of Lithuania showed that barriers (road fences to keep animals off the road) without prompt establishment of animal crossings may realign complexes of an ecological networks by reducing the importance of adjacent and increasing the importance of more distant patches. Such distant patches may become essential, and can sometimes be the only elements preserving the realigned ecological network.

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