Schacter, Carley R. https://www.southbayrestoration.org/ en Colonial Waterbird Nesting Summary for the South San Francisco Bay, 2008 https://www.southbayrestoration.org/document/colonial-waterbird-nesting-summary-south-san-francisco-bay-2008 <span class="field field--name-title field--type-string field--label-hidden">Colonial Waterbird Nesting Summary for the South San Francisco Bay, 2008</span> <span class="field field--name-uid field--type-entity-reference field--label-hidden"><span lang="" about="/user/161" typeof="schema:Person" property="schema:name" datatype="">Dave Halsing</span></span> <span class="field field--name-created field--type-created field--label-hidden">Tue, 04/26/2022 - 11:49</span> <div class="field field--name-field-document-category field--type-entity-reference field--label-above"> <div class="field__label">Document Category</div> <div class="field__items"> <div class="field__item">Scientific Reports</div> </div> </div> <div class="field field--name-field-author field--type-entity-reference field--label-above"> <div class="field__label">Author(s)</div> <div class="field__items"> <div class="field__item"><a href="/authors/schacter-carley-r" hreflang="en">Schacter, Carley R.</a></div> <div class="field__item"><a href="/authors/caitlin-w-robinson-nilsen" hreflang="en">Caitlin W. Robinson-Nilsen</a></div> <div class="field__item"><a href="/authors/jill-d-bluso-demers-0" hreflang="en">Jill D. Bluso-Demers</a></div> </div> </div> <div class="field field--name-field-date-document field--type-string field--label-above"> <div class="field__label">Date</div> <div class="field__item">2008-12</div> </div> <div class="clearfix text-formatted field field--name-body field--type-text-with-summary field--label-above"> <div class="field__label">Summary</div> <div class="field__item"><p>This report conveys the results of the 2008 nesting waterbird monitoring program, led by the San Francisco Bay Bird Observatory.</p> </div> </div> <div class="field field--name-field-keywords field--type-entity-reference field--label-above"> <div class="field__label">Keywords</div> <div class="field__items"> <div class="field__item"><a href="/keywords/waterbirds" hreflang="en">waterbirds</a></div> <div class="field__item"><a href="/keywords/waterbird-abundance" hreflang="en">waterbird abundance</a></div> <div class="field__item"><a href="/keywords/nesting-density" hreflang="en">nesting density</a></div> <div class="field__item"><a href="/keywords/birds" hreflang="en">birds</a></div> <div class="field__item"><a href="/taxonomy/term/960" hreflang="en">monitoring</a></div> </div> </div> <div class="field field--name-field-pond-complex field--type-entity-reference field--label-above"> <div class="field__label">Pond Complex</div> <div class="field__items"> <div class="field__item">Alviso</div> <div class="field__item">Eden Landing</div> <div class="field__item">Ravenswood</div> </div> </div> Tue, 26 Apr 2022 18:49:24 +0000 Dave Halsing 2260 at https://www.southbayrestoration.org Colonial Waterbird Nesting Summary for San Francisco Bay, 2009 https://www.southbayrestoration.org/document/colonial-waterbird-nesting-summary-san-francisco-bay-2009 <span class="field field--name-title field--type-string field--label-hidden">Colonial Waterbird Nesting Summary for San Francisco Bay, 2009</span> <span class="field field--name-uid field--type-entity-reference field--label-hidden"><span lang="" about="/user/161" typeof="schema:Person" property="schema:name" datatype="">Dave Halsing</span></span> <span class="field field--name-created field--type-created field--label-hidden">Tue, 04/26/2022 - 11:47</span> <div class="field field--name-field-document-category field--type-entity-reference field--label-above"> <div class="field__label">Document Category</div> <div class="field__items"> <div class="field__item">Scientific Reports</div> </div> </div> <div class="field field--name-field-author field--type-entity-reference field--label-above"> <div class="field__label">Author(s)</div> <div class="field__items"> <div class="field__item"><a href="/authors/caitlin-w-robinson-nilsen" hreflang="en">Caitlin W. Robinson-Nilsen</a></div> <div class="field__item"><a href="/authors/schacter-carley-r" hreflang="en">Schacter, Carley R.</a></div> <div class="field__item"><a href="/authors/jill-d-bluso-demers-0" hreflang="en">Jill D. Bluso-Demers</a></div> </div> </div> <div class="field field--name-field-date-document field--type-string field--label-above"> <div class="field__label">Date</div> <div class="field__item">2009-11</div> </div> <div class="clearfix text-formatted field field--name-body field--type-text-with-summary field--label-above"> <div class="field__label">Summary</div> <div class="field__item"><p>This report conveys the results of the 2009 nesting waterbird monitoring program, led by the San Francisco Bay Bird Observatory.</p> </div> </div> <div class="field field--name-field-keywords field--type-entity-reference field--label-above"> <div class="field__label">Keywords</div> <div class="field__items"> <div class="field__item"><a href="/keywords/waterbirds" hreflang="en">waterbirds</a></div> <div class="field__item"><a href="/keywords/waterbird-abundance" hreflang="en">waterbird abundance</a></div> <div class="field__item"><a href="/keywords/nesting-density" hreflang="en">nesting density</a></div> <div class="field__item"><a href="/keywords/birds" hreflang="en">birds</a></div> <div class="field__item"><a href="/taxonomy/term/960" hreflang="en">monitoring</a></div> </div> </div> <div class="field field--name-field-pond-complex field--type-entity-reference field--label-above"> <div class="field__label">Pond Complex</div> <div class="field__items"> <div class="field__item">Alviso</div> <div class="field__item">Eden Landing</div> <div class="field__item">Ravenswood</div> </div> </div> Tue, 26 Apr 2022 18:47:05 +0000 Dave Halsing 2259 at https://www.southbayrestoration.org Breeding Waterbird Populations Have Declined in South San Francisco Bay: An Assessment Over Two Decades https://www.southbayrestoration.org/document/breeding-waterbird-populations-have-declined-south-san-francisco-bay-assessment-over-two <span class="field field--name-title field--type-string field--label-hidden">Breeding Waterbird Populations Have Declined in South San Francisco Bay: An Assessment Over Two Decades</span> <span class="field field--name-uid field--type-entity-reference field--label-hidden"><span lang="" about="/user/113" typeof="schema:Person" property="schema:name" datatype="">ariela</span></span> <span class="field field--name-created field--type-created field--label-hidden">Tue, 09/28/2021 - 10:03</span> <div class="field field--name-field-document-category field--type-entity-reference field--label-above"> <div class="field__label">Document Category</div> <div class="field__items"> <div class="field__item">Scientific Reports</div> </div> </div> <div class="field field--name-field-author field--type-entity-reference field--label-above"> <div class="field__label">Author(s)</div> <div class="field__items"> <div class="field__item"><a href="/authors/c-alex-hartman" hreflang="en">C. Alex Hartman</a></div> <div class="field__item"><a href="/authors/joshua-t-ackerman-0" hreflang="en">Joshua T. Ackerman</a></div> <div class="field__item"><a href="/authors/schacter-carley-r" hreflang="en">Schacter, Carley R.</a></div> <div class="field__item"><a href="/authors/mark-p-herzog-0" hreflang="en">Mark P. Herzog</a></div> <div class="field__item"><a href="/authors/max-tarjan" hreflang="en">Max Tarjan</a></div> <div class="field__item"><a href="/authors/yiwei-wang" hreflang="en">Yiwei Wang</a></div> <div class="field__item"><a href="/authors/cheryl-m-strong-0" hreflang="en">Cheryl M. Strong</a></div> <div class="field__item"><a href="/authors/rachel-tertes" hreflang="en">Rachel Tertes</a></div> <div class="field__item"><a href="/authors/nils-warnock" hreflang="en">Nils Warnock</a></div> </div> </div> <div class="field field--name-field-date-document field--type-string field--label-above"> <div class="field__label">Date</div> <div class="field__item">2021-09</div> </div> <div class="clearfix text-formatted field field--name-body field--type-text-with-summary field--label-above"> <div class="field__label">Summary</div> <div class="field__item"><p>In south San Francisco Bay, former salt ponds now managed as wildlife habitat support large populations of breeding waterbirds. In 2006, the South Bay Salt Pond Restoration Project began the process of converting 50% to 90% of these managed pond habitats into tidal marsh. We compared American Avocet (<em>Recurvirostra americana</em>) and Black-necked Stilt (<em>Himantopus mexicanus</em>) abundance in south San Francisco Bay before (2001) and after approximately 1,300 ha of managed ponds were breached to tidal action to begin tidal marsh restoration (2019). Over the 18-year period, American Avocet abundance declined 13.5% (2,765 in 2001 vs. 2,391 in 2019), and Black-necked Stilt abundance declined 30.0% (1,184 in 2001 vs. 828 in 2019). Forster’s Tern (<em>Sterna forsteri</em>) abundance was 2,675 birds in 2019. In 2019, managed ponds accounted for only 25.8% of suitable habitats, yet contained 53.9%, 38.6%, and 65.6% American Avocet, Black-necked Stilt, and Forster’s Tern observations, respectively. Conversely, tidal marsh and tidal mudflats accounted for 42.9% of suitable habitats, yet contained only 18.4%, 10.3%, and 19.8% of American Avocet, Black-necked Stilt, and Forster’s Tern observations, respectively. Using a separate nest-monitoring data set, we found that nest abundance in south San Francisco Bay declined for all three species from 2005–2019. Average annual nest abundance during 2017–2019 declined 53%, 71%, and 36%, for American Avocets, Back-necked Stilts, and Forster’s Terns, respectively, compared to 2005–2007. Loss of island nesting habitat as a result of tidal marsh conversion and an increasing population of predatory California Gulls (<em>Larus californicus</em>) are two potential causes of these declines. All three species established nesting colonies on newly constructed islands within remaining managed ponds; however, these new colonies did not make up for the steep declines observed at other historical nesting sites. For future wetland restoration, retaining more managed ponds that contain islands suitable for nesting may help to limit further declines in breeding waterbird populations.</p> <p> </p> <p>Hartman, C. A, Ackerman, J. T, Schacter, C. R, Herzog, M. P, Tarjan, L. M, Wang, Y., et al. (2021). Breeding Waterbird Populations Have Declined in South San Francisco Bay: An Assessment Over Two Decades. <em>San Francisco Estuary and Watershed Science</em>, 19(3). <a href="http://dx.doi.org/10.15447/sfews.2021v19iss3art4">http://dx.doi.org/10.15447/sfews.2021v19iss3art4</a> Retrieved from <a href="https://escholarship.org/uc/item/16n259mc">https://escholarship.org/uc/item/16n259mc</a></p> </div> </div> <div class="field field--name-field-keywords field--type-entity-reference field--label-above"> <div class="field__label">Keywords</div> <div class="field__items"> <div class="field__item"><a href="/keywords/birds" hreflang="en">birds</a></div> <div class="field__item"><a href="/keywords/nesting-islands" hreflang="en">nesting islands</a></div> <div class="field__item"><a href="/keywords/population" hreflang="en">population</a></div> <div class="field__item"><a href="/keywords/ponds" hreflang="en">ponds</a></div> <div class="field__item"><a href="/keywords/habitat-restoration" hreflang="en">habitat restoration</a></div> <div class="field__item"><a href="/keywords/california-gull" hreflang="en">California gull</a></div> <div class="field__item"><a href="/keywords/forsters-tern" hreflang="en">Forster’s tern</a></div> </div> </div> <div class="field field--name-field-pond-complex field--type-entity-reference field--label-above"> <div class="field__label">Pond Complex</div> <div class="field__items"> <div class="field__item">Alviso</div> <div class="field__item">Eden Landing</div> <div class="field__item">Ravenswood</div> </div> </div> <div class="field field--name-field-website-link field--type-link field--label-above"> <div class="field__label">Content available here</div> <div class="field__item"><a href="https://escholarship.org/uc/item/16n259mc" target="_blank">San Francisco Estuary and Watershed Science, Volume 19, Issue 3</a></div> </div> Tue, 28 Sep 2021 17:03:30 +0000 ariela 2201 at https://www.southbayrestoration.org