Invasive species in the San Francisco Bay / California gulls / New Arrivals: Brian Tierney

Today, we learn how billions of plants, animals and microbes hitch a ride into the waters of the San Francisco Bay and disrupt the Bay’s delicate ecosystem. Then, we hear a story about a bird that lives in the Bay and eats our trash. And, we’ll hear a reading from Oakland poet Brian Tierney.

• Underwater travelers — California’s battle with invasive species
• A chain reaction brought gulls to the Bay, now they are eating other birds
• New Arrivals: Brian Tierney