Tag Archives: Arthur Shapiro

Refuting Jake Sigg: No, 90% of Insects Do Not Eat Only Native Plants

Posted on May 4, 2019 by SF Forest Alliance

Jake Sigg, considered the doyen of San Francisco’s native plant activists, has an influential newsletter. Recently, it said: “Did you know that 90 percent of insects can only eat the native plant species with which they’ve co-evolved?” It included a … Continue reading →

Posted in OTHER | Tagged Arthur Shapiro, environment, Jake Sigg, Nativism myths | Leave a comment

The Logic of Ecological Change – Prof Art Shapiro

Posted on April 12, 2014 by SF Forest Alliance

Recently, UC Davis Professor Art Shapiro gave a talk at the Commonwealth Club. It was a tour-de-force. He described it as a very quick resume of a course he’s been teaching for 40 years at UC Davis. The takeaway: The … Continue reading →

Posted in OTHER | Tagged Arthur Shapiro, biodiversity, ecology, environment | 3 Comments

What is Biodiversity?

Posted on April 1, 2014 by SF Forest Alliance

There’s been a lot of talk of ‘biodiversity’ in San Francisco recently. The city’s ‘Recreation and Open Space Element’ (ROSE) mentions it without clearly defining it. The Natural Areas Program claims to preserve it. There’s a new position, the Director … Continue reading →