Archive for Category: "Wildlife"

Viewing biodiversity through the ecoregional lens

Viewing biodiversity through the ecoregional lens

The Nature Conservancy’s Atlas of Global Conservation is a fabulous resource for understanding biological diversity. Scientists have divided up the world into more than 1,000 ecoregions and analyzed how they compare across dozens of measures. I’ve used data from TNC’s atlas to create a slide deck that illustrates patterns in species richness and threats to […]

Hawaii, West and South have most at-risk species

Hawaii, West and South have most at-risk species

The United States boasts the greatest diversity of ecosystems of any country and it’s home to more than 200,000 species. But about one-third of U.S. plants and animals are considered at risk by biologists, and at least 500 U.S. species are already extinct or missing. How do the 50 states compare in terms of number […]

Mapping the real tweets: eBird’s animations of U.S. species

Mapping the real tweets: eBird’s animations of U.S. species

eBird, a real-time online birding checklist, has produced some fascinating animated maps showing week-by-week occurrences of U.S. species. Below is the animation for the Swainson’s hawk, the most migratory of American hawks. The patterns in the animations struck me as similar to the video of satellite imagery we recently posted which showed how the snowpack, […]