Are We Capturing Faunal Intactness? A Comparison of Intact Forest Landscapes and the “Last of the Wild in Each Ecoregion”

摘要: Efforts to designate priority areas for conservation have had a long history, with most modern initiatives focused on either designating important biodiversity or those least impacted by direct human disturbance. Ecologically intact ecosystems are becoming increasingly limited the planet, making their identification and an priority. Intact forest landscapes (IFL) defined as forests that mainly free of significant anthropogenic degradation at 500 km2 in size. Here we define new metric, Last Wild each Ecoregion (LWE), preliminary scoping parts ecoregion. IFL LWE approaches among broad family techniques mapping ecological integrity global scale. Although both implicitly include species dimension intactness, this is inferred rather than directly measured. We assessed whether were better capturing where they abundant using distribution data set which range-wide available activity limits range. found methods identified absent too low abundance be ecologically functional. As such many IFL/LWE polygons did not fauna. also show 54.7% terrestrial realm (excluding Antarctica) has one recorded extinct two thirds overlap gone past years. The results even within remote areas, serious faunal loss taken place localities so survey work needed confirm intactness.