An international team of global warming experts have called for new drastic conservation tactics, such as assisted migration, to save species, in the face of the growing threat of climate change.

The team of conservation scientists is from Australia, the United Kingdom and United States, including University of Texas at Austin Professor Camille Parmesan.

The authors argue that both the rapid rate of climate change and the presence of human-made barriers to natural movement will prevent many species from shifting where they live in response to changes in local climate.

They suggest that human-assisted translocation of individuals, often termed "assisted migration" or "assisted colonization," may be necessary to ensure colonization of new geographic regions as parts or all of the historical species' range becomes unsuitable.

"When I first brought up this idea some 10 years ago in conservation meetings, most people were horrified," said Parmesan.

"But now, as the reality of global warming sinks in, and species are already becoming endangered and even going extinct because of climate change, I'm seeing a new willingness in the conservation community to at least talk about the possibility of helping out species by moving them around," he added.

Parmesan and her colleagues point out that assisted migration can never be a major solution for wildlife, but could conceivably be used to help a few species that biologists and the public deem to be important enough for the effort and could otherwise go extinct.