Chapter

Bird Communities: Effects of Fragmentation, Disturbance, and Sea Level Rise on Population Viability

John Y. Takekawa, Isa Woo, Karen M. Thorne, Kevin J. Buffington, Nadav Nur, Michael L. Casazza and Joshua T. Ackerman

in Ecology, Conservation, and Restoration of Tidal Marshes

Published by University of California Press

Published in print October 2012 | ISBN: 9780520274297
Published online January 2013 | e-ISBN: 9780520954014 | DOI: http://dx.doi.org/10.1525/california/9780520274297.003.0012
Bird Communities: Effects of Fragmentation, Disturbance, and Sea Level Rise on Population Viability

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Birds have distinct niches in San Francisco Bay tidal marshes, based on their foraging guilds and habitat associations. Urbanization has resulted in a static system with a less resilient avian community threatened by sea-level rise, disturbance, fragmentation, invasive species, and other stressors. Large-scale restoration has increased open habitats and waterbirds, but waterbirds will decrease in favor of tidal-marsh residents as marshes vegetate and mature. Understanding "bottleneck" periods such as king tides and storm events affecting survival, productivity, or dispersal may be key factors in maintaining avian populations. Linking the effects of habitat alteration and fragmentation to changes in vital rates of bird populations through viability analyses should help to identify which species are most at risk.

Keywords: tidal range; marsh plain; wetland restoration; patch size; extreme events; invertebrates

Chapter.  11824 words.  Illustrated.

Subjects: Animal Pathology and Diseases

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