Identifying potential conservation areas in the Cuitzeo Lake basin, Mexico by multitemporal analysis of landscape connectivity

摘要: Abstract Lake Cuitzeo basin is an important ecological area subjected to strong human pressure on forest covers that are key elements for the long-term support of biodiversity. We studied landscape connectivity changes years 1975, 1996, 2000, 2003 and 2008 identify potential conservation areas in basin. modeled distributions Mexican bobcat ( Lynx rufus escuinapae ) ringtail Bassariscus astutus – two terrestrial mammal focal species with contrasting dispersal capacities we determined their habitat availability suitability then identified optimal patches produced cumulative resistance maps, estimated least-cost paths (graph theory approach), elaborated current flow maps (circuit approach). For evaluation connectivity, applied integral index (IIC) each study period, individual patch contribution overall connectivity. The IIC had very low values associated reduced habitat. However, our showed importance surface areas. combined application a graph-based approach mapping were useful, complementary both terms estimating corridors identifying high probability This indicated analysis useful tool identification local planning.