Variability in habitat value of commercial salt production ponds: implications for waterbird management and tidal marsh restoration planning

Salt evaporation ponds are used in place of lost natural estuarine habitats for foraging and roosting by waterbirds around the world, but have started to be decommissioned in some areas due to low profitability. In San Francisco Bay, three former salt pond complexes (Alviso, Eden Landing, and Ravens...

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Published in:Hydrobiologia 2012-11, Vol.697 (1), p.139-155
Main Authors: Athearn, Nicole D., Takekawa, John Y., Bluso-Demers, Jill D., Shinn, Joel M., Arriana Brand, L., Robinson-Nilsen, Caitlin W., Strong, Cheryl M.
Format: Article
Language:English
Subjects:
Aquatic birds
Biomedical and Life Sciences
Ecology
Environmental restoration
Evaporation
Freshwater
Freshwater & Marine Ecology
Habitats
Life Sciences
Limnology
Limnology and Aquatic Birds
Podiceps nigricollis
Ponds
Salts
Wetlands
Wildfowl
Zoology
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creator Athearn, Nicole D.
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description Salt evaporation ponds are used in place of lost natural estuarine habitats for foraging and roosting by waterbirds around the world, but have started to be decommissioned in some areas due to low profitability. In San Francisco Bay, three former salt pond complexes (Alviso, Eden Landing, and Ravenswood) have been decommissioned, i.e., taken out of commission, and are planned for marsh restoration. We compared total and foraging abundance and densities of ducks, shorebirds, and piscivores, as well as eared grebes ( Podiceps nigricollis ) among decommissioned and commercial pond complexes. Complex use was consistent within groups and variable among groups, with most use occurring in decommissioned ponds: 73% of ducks were observed in the Alviso complex and 9% in the commercial ponds; 51% of shorebirds were in the Eden Landing complex and only 17% in commercial ponds; and 56% of piscivores were in the Alviso complex and
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subjects Aquatic birds
Biomedical and Life Sciences
Ecology
Environmental restoration
Evaporation
Freshwater
Freshwater & Marine Ecology
Habitats
Life Sciences
Limnology
Limnology and Aquatic Birds
Podiceps nigricollis
Ponds
Salts
Wetlands
Wildfowl
Zoology
title Variability in habitat value of commercial salt production ponds: implications for waterbird management and tidal marsh restoration planning
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