ecology

Philosophy Talk asks: What is Wilderness?

Apr 5, 2015

Nowadays we think of wilderness as a fully natural environment that contrasts sharply with the designed and constructed environments in which we normally move. But does that vision of wilderness really exist anymore? What is natural and what is artificial about wilderness? Should humans be understood as a part of nature or distinct from it? And how should we approach conservation efforts so that we balance the needs of a growing world population with the need to preserve some aspect of the wild in our lives?

Sharks of the San Francisco Bay

Mar 20, 2012
Photo by David McGuire

They are the Bay's majestic apex predators, critical to the aquatic food web and leading indicators of the health of the entire Bay ecosystem. Yet, relatively little is known about the eleven species of shark who call the San Francisco Bay home. What is the size, range, and biology of each of these populations?

California's outer coast once boasted 27 miles of Bay Area beaches. Up until the 20th Century, these beaches provided a natural buffer for the inner land areas; then came freeways, airports and downtowns. KALW's Ben Trefny spoke with Robin M. Grossinger, Senior Scientist and Historical Ecology Program Director at the San Francisco Estuary Institute about California beaches, landscape heritage and how some of these areas have rebuilt themselves.