2014 Harbor Seal Pupping Season Closures
From March 1 through June 30, the park implements closures of certain Tomales Bay beaches and Drakes Estero to water-based recreation to protect harbor seals during the pupping season. Please avoid disturbing seals to ensure a successful pupping season. More »
2014 Winter Shuttle Bus Operations Have Ended
March 30, 2014, was the last day for the 2014 Winter Shuttle Bus System. Sir Francis Drake Blvd. is open daily from now through late December 2014. More »
Operational Changes Took Effect on May 1, 2013
The Lighthouse Visitor Center is now only open Fridays through Mondays; closed Tuesdays through Thursdays, including Thanksgiving. The Kenneth C. Patrick Visitor Center is open on weekends and holidays when shuttles are operating. More »
Giacomini Wetland Restoration Project: Restoration: Giacomini Wetlands: A Haven for Ducks
Updated October 2012
What's Going on at Giacomini - in a Nutshell:
Waterbird numbers continue to increase each year since restoration, particularly for dabbling ducks, with a record high number of approximately 11,488 waterbirds counted on one day in December 2010 (ARA 2012). However, shorebird numbers have been more variable. Numbers were low in the first winter after restoration, moderate in the second year and first half of the third year, and then declined sharply in the latter half of the third year (ARA 2012). In Year 4, shorebird numbers rebounded to approximately Year 2 levels (ARA 2012). Giacomini is still evolving as potential shorebird habitat, with this evolution strongly dependent on invertebrate prey bases in marsh muds. In the early years, the restored wetland primarily attracted species that forage in the water column, ground, and in shallow sediments (J. Evens, ARA, pers. comm.), however, starting with the increase in numbers since fall 2011 of Marbled godwits and Dowitchers, which forage more deeply in muds, this may be yet another confirmation of what we have observed through our benthic invertebrate and zooplankton monitoring results--numbers of benthic invertebrates in the restored wetlands are climbing dramatically, and species composition is shifting. See Untangling the Food Web: Changes in Prey Base Following Restoration.
Click on a link below to read more about Giacomini Wetlands: A Haven for Ducks: 2012 Update.
Read Giacomini Wetlands: A Haven for Ducks - 2011 Update and Not Just for Ducks Anymore--the February 2010 update--for more in-depth information about waterfowl in the Giacomini Wetlands before restoration and during the first three years after restoration.
Did You Know?
A 1° F increase in average temperature seen in California over the last 100 years has led to Sierra snow melting 2 to 4 weeks earlier and flowers blooming 1 to 2 weeks earlier. Temperatures are predicted to increase another 1° to 2° F in the next 25 years. More...