TY - JOUR JF - IJAE JO - VL - 6 IS - 4 PY - 2018 Y1 - 2018/3/01 TI - Application of Graph Theory in Landscape Ecology The Case Study: Assessment of Habitat Connectivity within Greater Melbourne TT - کاربرد تئوری گرف در مطالعات اکولوژی سیمای سرزمین نمونه موردی: سنجش پیوستگی زیستگاه‌های کلان‌شهر ملبورن N2 - A new method to quantify, monitore and assess ecological structures and functions is the application of graph theory. In ecology, this theory demonstrates its suitable application in assessment of ecological connectivity. Connectivity is the structural attribute of landscape which facilitates the species movement among their habitats. Using graph theory, this paper aims to assess the connectivity of habitats within an urban landscape. Therefore, firstly the graph fundamentals, the graph-based connectivity studies, various methods, software and graph-based metrics for graph modeling were discussed. Then using this theory, the habitat network of Varanus varius was modelled within the Greater Melbourne as a weighted network incorporating nodes and active links. The connectivity of adjacent habitats was assessed using pij and flux metrics. The overall connectivity of the network was assed using DCflux Eventually the nodes were prioritized based on their importance for maintenance of network connectivity. The use of method showed that majority of highly ranked patches are located on the fringes of metropolitan Melbourne. In addition, a number of important patches are located on the urban growth boundary at North, North East and East of Melbourne that is a potential conflict between conservation plans and land use planning. Due to the ease of its application and validity of results, the use of this theory and the metric DCflux is recommended to study the species habitat networks in fragmented landscapes especially urban landscapes. SP - 81 EP - 95 AU - Poodat, Fatemeh AU - Arrowsmith, Colin AU - Mikaeili Tabrizi, Alireza AU - Gordon, Ascelin AD - Shahid Chamran University of Ahvaz KW - Graph theory KW - Habitat networks KW - Urban landscape KW - Varanus varius. UR - http://ijae.iut.ac.ir/article-1-830-en.html DO - 10.29252/ijae.6.4.81 ER -