Scale is a key ingredient when tracking biodiversity, researchers say

[ScienceDaily]

To fully understand biodiversity and how it is changing, you need to look near, far, and in-between, according to a new study. Researchers studied 50 years of data about nesting birds in North America and tracked biodiversity changes on a local, regional, and continental scale. They found significant differences in how much change had occurred, based upon how wide a geographic net they cast.

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