Tag Archives: World Conservation

Ecosystems and Landscapes The mosaic of ecosystems we see from a plane is not just a random array. There are patterns to the spatial configurations of ecosystems. Lakes are drained by rivers and bordered by marshes, woodlots are patches embedded in a matrix of agricultural ecosystems, clear cuts are patches …

Categories of the IUCN Red List The following categories are used by the World Conservation Union to classify species for the IUCN Red List,1 a global compilation of species of concern to conservationists. Extinct (EX) A taxon is Extinct when there is no reasonable doubt that the last individual has …