Sunday, October 13, 2013

Measuring Biodiversity

This episode of the BBC series State of the Planet includes the radical method of chemical fogging which has been used by ecologist Terry Erwin to measure biodiversity in the canopy of the Amazon rainforest:



Tuesday, September 17, 2013

Speciation in Action

An example of an animal that is currently undergoing allopatric speciation (the Californian Salamader). Reproductive isolation has occurred as the original group became seperated either side of the Sierra Nevada valley: