Quantitative monitoring of changes in forest habitat connectivity following the great eastern Japan earthquake and tsunami

Hirayama, Hidetake; Tomita, Mizuki; Hara, Kohjiro

doi:10.1007/s10980-020-01034-4

Cited by 7 publications

(6 citation statements)

References 42 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…By selecting a range of dispersal distances (from 100 m to 20,000 m), we showed that connectivity indices varied according to species' dispersal abilities [21,59,85]. The distances we calculated empirically, based on the behavior of graph-based connectivity indices for our landscape, were similar to the published dispersal distances of animals which are found in the study area.…”

Section: Discussionsupporting

confidence: 57%

Restoration and Conservation of Priority Areas of Caatinga’s Semi-Arid Forest Remnants Can Support Connectivity within an Agricultural Landscape

Salazar

Arellano

Muñoz‐Sáez

et al. 2021

Land

View full text Add to dashboard Cite

Land-use and land-cover (LULC) changes are major drivers of biodiversity loss in semi-arid regions, such as the Caatinga biome located in the Northeast of Brazil. We investigated landscape dynamics and fragmentation in an area of the São Francisco Valley in the Brazilian Caatinga biome and measured the effect of these dynamics on ecological, functional and structural connectivity over a 33-year period (1985–2018). We calculated landscape connectivity indices based on graph theory to quantify the effect of further agricultural expansion on ecological connectivity at the landscape scale. We used a multicriteria decision analysis that integrates graph-based connectivity indices at the habitat patch scale, combined with an index of human disturbance to identify patches that, if conserved and restored, preserve the connectivity of the landscape most effectively. In the period studied, agriculture increased at a rate of 2104 ha/year, while native Caatinga vegetation decreased at a rate of 5203 ha/year. Both dense and open Caatinga became more fragmented, with the number of fragments increasing by 85.2% and 28.6%, respectively, whilst the average fragment size decreased by 84.8% and 6.1% for dense and open Caatinga, respectively. If agriculture patches were to expand by a 300 m buffer around each patch, the overall ecological connectivity could be reduced by 6–15%, depending on the species’ (small- to mid-size terrestrial vertebrates) mobility characteristics for which the connectivity indices were calculated. We provided explicit spatial connectivity and fragmentation information for the conservation and restoration of the Caatinga vegetation in the studied area. This information helps with conservation planning in this rapidly changing ecosystem.

show abstract

Section: Discussionsupporting

confidence: 57%

Restoration and Conservation of Priority Areas of Caatinga’s Semi-Arid Forest Remnants Can Support Connectivity within an Agricultural Landscape

Salazar

Arellano

Muñoz‐Sáez

et al. 2021

Land

View full text Add to dashboard Cite

show abstract

“…Graphab has also been frequently implemented in studies to support decisions directed at biodiversity preservation, allowing users to answer questions beginning with ''where''. In the field of environmental impact assessment: Where might species be the most impacted by landscape changes [9], climate changes [29][30][31], or natural disasters [32]? Where will the potential ecological impacts caused by the development of transport infrastructures [33][34][35] or of a large urban infrastructure [36] occur?…”

Section: Impact Overviewmentioning

confidence: 99%

Graphab: An application for modeling and managing ecological habitat networks

et al. 2021

View full text Add to dashboard Cite

Landscape graphs are increasingly used in ecology, conservation, and landscape planning for modeling habitat connectivity of wildlife species. We present here the follow-up of Graphab, a software application for modeling habitat networks. This application has been recently enhanced by advanced functions of spatial analysis, command-line facilities, and connections with other software applications. It has been used in many studies, first in ecological studies for analyzing the role of landscape connectivity on biological responses measured in the field, second for supporting decisions concerning biodiversity preservation. Future improvements could be made to make the links more realistic with respect to ecological processes.

show abstract

“…Perturbations impact species persistence via the degradation of habitat, direct exploitation or persecution, or changes to ecological processes (Bragina et al, 2015;Hilton et al, 2003, Hirayama et al, 2020Reynolds et al, 2017;Steutermann Rogers, 2018;Zhang et al, 2009). In areas of conflict, the introduction of military infrastructure, defoliation, the exploitation and trade of wildlife by displaced people, or military or insurgent armies for food or to finance war efforts can have devastating effects upon species abundance (Brito et al, 2018;Butsic et al, 2015;Draulans & Van Krunkelsven, 2002;Dutta, 2020).…”

Section: Species Persistencementioning

confidence: 99%

Envisioning a resilient future for biodiversity conservation in the wake of the COVID‐19 pandemic

et al. 2021

View full text Add to dashboard Cite

show abstract

Quantitative monitoring of changes in forest habitat connectivity following the great eastern Japan earthquake and tsunami

Cited by 7 publications

References 42 publications

Restoration and Conservation of Priority Areas of Caatinga’s Semi-Arid Forest Remnants Can Support Connectivity within an Agricultural Landscape

Restoration and Conservation of Priority Areas of Caatinga’s Semi-Arid Forest Remnants Can Support Connectivity within an Agricultural Landscape

Graphab: An application for modeling and managing ecological habitat networks

Envisioning a resilient future for biodiversity conservation in the wake of the COVID‐19 pandemic

Contact Info

Product

Resources

About