Diet of an important wetland resident, the California Killifish, Fundulus parvipinnis, in a natural and created marsh habitat in Mission Bay, California

2021 ◽  
Author(s):  
◽  
Katie Robinson-Filipp
2021 ◽  
Author(s):  
◽  
Georgina Hart

<p>The Earth's climate system is entering a period of dynamic change after millennia of relatively stable climate. Coastal communities will need to adapt to dynamically shifting coastal environments as the climate system changes and sea levels rise. This study adds to a growing literature that investigates coastal vulnerability, adaptation, and resilience to climate change. It investigates regional scale social and institutional barriers to adaptation to sea level rise; examines the exposure, sensitivity and adaptation options at two coastal settlements in the Auckland region – Mission Bay/Kohimarama and Kawakawa Bay; and it analyses coastal adaptation response options from a resilience perspective. Mission Bay/Kohimarama and Kawakawa Bay, Auckland will experience increasing coastal hazard risk as the numbers of people and property potentially affected by storm events increases as sea level rises. Findings from the present study suggest that existing settlements in the Auckland region may already be 'locked in' to a coastal adaptation approach focused on maintaining the current coastline through coastal stabilisation, an approach that will decrease community resilience and increase vulnerability in the long term, even if this is found to be a successful response in the short term. Retreat offers an alternative approach that is strongly aligned with reducing community vulnerability and increasing resilience; however, strong opposition from communities to any retreat approach is expected. Developing trusted climate science information, education around coastal hazard risk, and participatory community led decision-making are identified as central enablers for a retreat approach to be included as a viable coastal adaptation option for communities in the Auckland region.</p>


2001 ◽  
Vol 136 (2-3) ◽  
pp. 149-165 ◽  
Author(s):  
Sharook P Madon ◽  
Gregory D Williams ◽  
Janelle M West ◽  
Joy B Zedler

2019 ◽  
Vol 27 (2-3) ◽  
pp. 207-221 ◽  
Author(s):  
J. Daniel Weller ◽  
Patricia Chow-Fraser

2005 ◽  
Vol 2005 (1) ◽  
pp. 787-791
Author(s):  
Richard Greer ◽  
Peter McGowan ◽  
Jacqueline Michel ◽  
Norman Meade

ABSTRACT Spill-associated mortality from the Chalk Point oil spill to muskrats (Ondatra zibethicus) was estimated using habitat and oiling extent data, muskrat population and home range estimates, local expert opinion, and hut count indices for three impacted creeks. Most of the 70 dead muskrats were collected from Swanson Creek. Muskrat density in this creek was estimated by local experts, and extrapolation from densities reported at a nearby wildlife refuge. Muskrat habitat acreage within Swanson Creek was determined using digitized aerial photography. Acreages of oiled marsh habitat for Swanson, Indian, and Trent Hall Creeks were estimated using spatial analysis. Oiling of muskrats likely occurred to those whose home ranges overlapped the spill area. Radius of a muskrat home range was reported to be 30 meters, and 30 meter buffers were circumscribed along borders of the oiled areas for these creeks. Exposure zone acreages were determined by summing the 30-meter buffers and oiled areas for Swanson, Indian, and Trent Hall Creeks, totaling 75.02, 19.55, and 9.12 acres, respectively. Muskrat population exposure within Swanson Creek was estimated by multiplying exposure zone acreage by muskrat density (4.2 per acre), totaling 315 individuals. Muskrat populations for Indian and Trent Hall Creeks were quantified using hut count indices and comparisons to the count index and population estimate for Swanson Creek. Muskrat exposures in Indian and Trent Hall Creeks were determined by multiplying estimated muskrat density by the exposure zone acreage for each creek. The exposed population was calculated to be 32 and 29 for Indian Creek and Trent Hall Creek, respectively. Assuming 100% mortality for muskrats potentially exposed to oiled marsh habitat, the total acute mortality in the spill area was estimated to be 376 individuals (i.e., 315 in Swanson Creek, 32 in Indian Creek, and 29 in Trent Hall Creek). Total muskrat years lost are calculated, and the strengths and uncertainties of this approach are discussed.


Science ◽  
1999 ◽  
Vol 286 (5449) ◽  
pp. 2445-2446
Author(s):  
M. Barinaga
Keyword(s):  

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