Understanding the human body is a team effort. That's where the Yachtel group comes in.

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.jp. That's Y-A-K-U-L-T.C-O.J-P. When it comes to a guide for your gut, count on Yacolt.

This is Scientific Americans' 60-second science. I'm Steve Merski.

We find that the composition of ecosystems around the world is changing much more rapidly than we expected,

and indeed much more rapidly than ecological theory predicts.

Biologist Anne McGarren of the University of St. Andrews in Scotland.

We still don't understand the consequences of this.

We think that it's going to be associated with a reduction in resilience in these assemblages,

but there are still many questions to be addressed about the consequences of this rapid biodiversity change.

And what it means is that if we're interested in conservation, we need to do much more

the kinds of species. We also need to track changes in the abundances on identities

with the species present in these ecosystems. Conservation biologists will need to keep track

of the types of species that they find in these places, and policymakers will need to take

account of these changes in their policy.

To that end, McGurran and colleagues are establishing what they're calling the biotime database,

a repository for information about ecological communities and populations,

and how they're changing over time.

McGorin spoke on January 26th with Scientific American Editor-in-Chief Mariette D. Christina

at the World Economic Forum in Davos.

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