Abstract
Connectivity of potential habitat patches has become essential for the biodiversity conservation and protection. In Multi Criteria Evaluation (MCE) of IDRISI software, Weighted Linear Combination (WLC) module facilitates to choose the potential habitat patches for connectivity analysis mainly based on the weights given through the Analytical Hierarchy Process (AHP) method. Digital Elevation Model, Slope, Disturbance Index layer, Road and natural vegetation layers are the different parameters considered for the WLC analysis along with the Biologcial Richness Layer. AHP results showed 0.05 consistency ratio. WLC generated outputs are applied in the graph theory based Conefor Sensinode 2.6 software. Integral Index of Connectivity (IIC) with special emphasis on each habitat’s importance value (dIIC: Integral Index of Connectivity importance value for each habitat patch in comparison with all the habitat patches of the entire study area based on network analysis and graph theory approach) are analyzed to understand the habitat patch connectivity. Perspective component chosen through dIIC served huge amount of information regarding the potential patches for further intensive field analysis. Spatial analyst tools of ArcGIS helped to find the paths between the chosen source and destination. The two paths generated from WLC and dIIC layer passed through the identified potential habitat patches (A, B, C and D). Thus, these two methods played important role in biodiversity conservation and maintenance of these potential patches. Decision support analysis through WLC, coupled with graph theory based dIIC facilitated to identify the potential patches and the corresponding path efficiently.
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Acknowledgments
We sincerely thank Director, National Remote Sensing Centre (NRSC) and Deputy Director, Remote Sensing Application (NRSC) for offering the opportunity to work on this innovative idea through “DOS-DBT Project: Biodiversity Characterization at the Landscape Level (BCLL) using Satellite Remote Sensing and GIS”. We thank Dr P.S Roy (DOS-DBT Project Director) for his consistent encouragement throughout the project work. Thanks are due to all the Scientists and Research scholars of this Project (Phase II and III) for their valuable field data information and suggestions. We acknowledge the editor and the anonymous reviewers for the helpful suggestions on our manuscript.
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Shanthala Devi B. S, Murthy, M.S.R., Bijan, D. et al. Identification of Potential Habitat Patches for Connectivity Using Weighted Linear Combination (WLC) and Integral Index of Connectivity (IIC) at East Godavari District, Andhra Pradesh, India. J Indian Soc Remote Sens 44, 385–394 (2016). https://doi.org/10.1007/s12524-015-0508-7
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DOI: https://doi.org/10.1007/s12524-015-0508-7