Place
- Canada2
- Channel Islands (Calif.)2
- Contra Costa County (Calif.)2
- Indian Ocean2
- Jasper Ridge Biological Preserve (Calif.)2
- Marin County (Calif.)2
- Mexico2
- Napa County (Calif.)2
- North America2
- Rhode Island Sound (Mass. and R.I.)2
- San Francisco Bay (Calif.)2
- San Francisco Bay Area (Calif.)2
- Solano County (Calif.)2
- Woodside (Calif.)2
- Algeria1
- Andhra Pradesh, India1
- Antarctica1
- Asia1
- Assam, India1
- Australia1