Home Range, Habitat Selection, and Movements of California Black Rails at Tidal Marshes at San Francisco Bay, California

The Condor ◽  
2009 ◽  
Vol 111 (4) ◽  
pp. 599-610 ◽  
Author(s):  
Danika C. Tsao ◽  
John Y. Takekawa ◽  
Isa Woo ◽  
Julie L. Yee ◽  
Jules G. Evens
Keyword(s):  
Habitat Selection ◽  
Home Range ◽  
San Francisco ◽  
San Francisco Bay ◽  
Tidal Marshes

Guiding climate change planning for San Francisco bay tidal marshes

2013 ◽  
Vol 310 ◽  
pp. 244
Author(s):  
Sam Veloz ◽  
Nadav Nur ◽  
Leo Salas ◽  
Julian Wood ◽  
Diana Stralberg ◽  
...  
Keyword(s):  
Climate Change ◽  
San Francisco ◽  
San Francisco Bay ◽  
Tidal Marshes

scholarly journals Final report for sea-level rise response modeling for San Francisco Bay estuary tidal marshes

2013 ◽  
Author(s):  
John Y. Takekawa ◽  
Karen M. Thorne ◽  
Kevin J. Buffington ◽  
Kyle A. Spragens ◽  
Kathleen M. Swanson ◽  
...  
Keyword(s):  
Sea Level Rise ◽  
Sea Level ◽  
San Francisco ◽  
San Francisco Bay ◽  
Tidal Marshes ◽  
Final Report ◽  
San Francisco Bay Estuary ◽  
Response Modeling

Spatiotemporal Patterns of Mineral and Organic Matter Deposition Across Two San Francisco Bay-Delta Tidal Marshes

Wetlands ◽  
2020 ◽  
Vol 40 (5) ◽  
pp. 1395-1407
Author(s):  
Kevin J. Buffington ◽  
Christopher N. Janousek ◽  
Karen M. Thorne ◽  
Bruce D. Dugger
Keyword(s):  
Organic Matter ◽  
San Francisco ◽  
San Francisco Bay ◽  
Spatiotemporal Patterns ◽  
Tidal Marshes

scholarly journals Organochlorine Concentrations and Eggshell Thickness in Failed Eggs of the California Clapper Rail from South San Francisco Bay

The Condor ◽  
2001 ◽  
Vol 103 (3) ◽  
pp. 620-624 ◽  
Author(s):  
Steven E. Schwarzbach ◽  
John D. Henderson ◽  
Carmen M. Thomas ◽  
Joy D. Albertson
Keyword(s):  
San Francisco ◽  
San Francisco Bay ◽  
Geometric Mean ◽  
Tidal Marshes ◽  
Eggshell Thickness ◽  
Clapper Rail ◽  
Wet Weight ◽  
Embryotoxic Effects ◽  
Mean Concentration

Abstract In 1992 we collected 22 failed California Clapper Rail (Rallus longirostris obsoletus) eggs from four tidal marshes of south San Francisco Bay for organochlorine analysis and determination of eggshell thickness. Mean eggshell thickness of these eggs (262 microns) was not statistically distinguishable from that of pre-1932 museum eggs (271 microns). Total PCB concentrations in eggs ranged from 0.65 to 5.01 μg g−1 on an adjusted fresh wet weight basis, with a geometric mean concentration of 1.30 μg g−1. DDE concentrations were extremely low at a geometric mean of 0.11 μg g−1. Geometric mean concentrations of all other organochlorines detected were below 0.10 μg g−1. The concentrations of all organochlorines except PCBs appear to have declined in California Clapper Rails since the mid 1980s. PCBs may still be high enough in some rail eggs to produce embryotoxic effects but additional work to quantify the more toxic PCB congeners in rail eggs is needed. Concentraciones de Organocloros y Espesor de los Cascarones en Huevos Fallados de Rallus longirostris obsoletus de la Bahía de San Francisco del Sur Resumen. En 1992 recolectamos 22 huevos de Rallus longirostris obsoletus que fallaron en salir del cascarón en cuatro ciénagas de marea del sur de la Bahía de San Francisco para su análisis de contenido de organocloros y la determinación del espesor de los cascarones de dichos huevos. La media proporcional del espesor de los cascarones de huevo recolectados en el campo en 1992 (262 micras) no era menor que la de aquellos huevos (en museo) anteriores a 1932 (256 micras). Las concentraciones totales de PCB en los huevos fluctuaban desde 0.65 hasta 5.01 μg g−1 en base a un ajuste del peso húmedo fresco, con una concentración media geométrica de 1.30 μg g−1. Las concentraciones de DDE eran extremadamente bajas a una media geométrica de 0.11 μg g−1. La concentración media geométrica de todos los otros organocloros descubiertos estuvo por debajo de 0.10 μg g−1. La concentración de todos los organocloros, excepto los PCBs parece haber disminuido en R. l. obsoletus desde mediados de los años ochenta. Los PCBs todavía pueden ser suficientemente altos en algunos huevos de gallinetas de California como para producir efectos tóxicos en embriones, pero es necesario realizar investigaciones adicionales para cuantificar mayores congeners de los PCBs.

Spread of Exotic Cordgrasses and Hybrids (Spartina sp.) in the Tidal Marshes of San Francisco Bay, California, USA

2004 ◽  
Vol 6 (2) ◽  
pp. 221-231 ◽  
Author(s):  
Debra R. Ayres ◽  
Debra L. Smith ◽  
Katy Zaremba ◽  
Shannon Klohr ◽  
Donald R. Strong
Keyword(s):  
San Francisco ◽  
San Francisco Bay ◽  
Tidal Marshes

Relative Value of Managed Wetlands and Tidal Marshlands for Wintering Northern Pintails

2012 ◽  
Vol 3 (1) ◽  
pp. 98-109 ◽  
Author(s):  
Peter S. Coates ◽  
Michael L. Casazza ◽  
Brian J. Halstead ◽  
Joseph P. Fleskes
Keyword(s):  
San Francisco ◽  
Resource Selection ◽  
San Francisco Bay ◽  
Time Of Day ◽  
Wildlife Habitat ◽  
Tidal Marshes ◽  
Selection Function ◽  
Ecological Communities ◽  
Managed Wetlands ◽  
Selection Of

Abstract Northern pintail Anas acuta (hereafter pintail) populations have declined substantially throughout the western United States since the 1970s, largely as a result of converting wetlands to cropland. Managed wetlands have been developed throughout the San Francisco Bay estuaries to provide wildlife habitat, particularly for waterfowl. Many of these areas were historically tidal baylands, and plans are underway to remove dikes and restore tidal action. The relationship between tidal baylands and waterfowl populations is poorly understood. Our objective was to provide information on selection and avoidance of managed and tidal marshland by pintails. During 1991–1993 and 1998–2000, we radiomarked and relocated 330 female pintails (relocations, n  = 11,574) at Suisun Marsh, California, the largest brackish water estuary within San Francisco Bay, to estimate resource selection functions during the nonbreeding months (winter). Using a distance-based modeling approach, we calculated selection functions for different ecological communities (e.g., tidal baylands) and investigated variation explained by time of day (day or night hours) to account for differences in pintail behavior (i.e., foraging vs. roosting). We found strong evidence for selection of managed wetlands. Pintails also avoided tidal marshes and bays and channels. We did not detect differences in selection function between day and night hours for managed wetlands, but the degree of avoidance of other habitats varied by time of day. We also found that areas subjected to tidal action did not influence the selection of immediately adjacent managed wetlands. In areas where tidal marsh is restored, improving habitat conditions in adjacent wetlands would likely increase local carrying capacities and offset the loss of wetland area.

Postfledging Forster's Tern Movements, Habitat Selection, and Colony Attendance in San Francisco Bay

The Condor ◽  
2009 ◽  
Vol 111 (1) ◽  
pp. 100-110 ◽  
Author(s):  
Joshua T. Ackerman ◽  
Jill D. Bluso-Demers ◽  
John Y. Takekawa
Keyword(s):  
Habitat Selection ◽  
San Francisco ◽  
San Francisco Bay ◽  
Colony Attendance
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