Sparrows uniquely adapted to Bay Area marshes are losing their uniqueness

Phred Benham, a postdoc in the Bowie Lab.

A new genomic analysis of Savannah sparrows (Passerculus sandwichensis) from around the state — many of them collected as far back as 1889, their specimens stored in the Museum of Vertebrate Zoology at the University of California, Berkeley — shows that over the past 128 years, the Bay Area's sparrow's adaptation to salt water is being diminished by interbreeding with inland sparrows adapted to fresh water. Read More...