A New Method For Identifying Habitats In Need Of Conservation
21.05.12
. They first used pre-existing data on animal distributions in order to calculate the conservation importance of 5x5-km squares around the globe. In this case, the animals of interest were forest-dwelling birds, for which distribution data happen to be extremely detailed; additionally, forest habitats act as a sort of conservation umbrella, since these areas tend to have very high biodiversity. Impact scores indicate how many highly and moderately forest-dependent bird species inhabit each cell, and therefore offer a continuous measure of each cell's potential conservation impact--something of a novelty, since most previous measures tend to be binary or categorical.
The researchers overlaid their scores with several pre-existing datasets in order to further refine their estimates of which regions were in greatest need of conservation action. The first of these examined recent deforestation rates, and therefore pinpointed which areas were most likely susceptible to development; the next contained information on land that is already set aside for bird conservation purposes, thus pinpointing which areas are least regulated and, therefore, most vulnerable; the final dataset focused on areas with the greatest carbon stocks, allowing the researchers to determine how their results might fit in with the Reducing Emissions from Deforestation and Forest Degradation (REDD) project, an incentives program that attempts to reduce greenhouse gas emissions by avoiding deforestation.
Source: Science 2.0