2022 Early Hearing Detection & Intervention Virtual Conference
March 13 - 15, 2022
5/21/2019 | 2:45 PM - 3:00 PM | PREDICTING THE SPATIAL AND TEMPORAL DISTRIBUTION OF WETTED HABITATS IN INTERMITTENT STREAMS AND ITS IMPLICATIONS FOR LONG-TERM DROUGHT IMPACTS | 151 G
PREDICTING THE SPATIAL AND TEMPORAL DISTRIBUTION OF WETTED HABITATS IN INTERMITTENT STREAMS AND ITS IMPLICATIONS FOR LONG-TERM DROUGHT IMPACTS
Intermittent streams are common in California, and insufficient summer streamflow is often cited as a bottleneck for species survival in this region. During dry periods, aquatic organisms depend on persistent wetted reaches and isolated pools for refuge, from which they may recolonize surrounding habitats upon rewetting. Despite the importance of intermittent streams for maintaining regional biodiversity, little is known about the physical controls on the drying dynamics, nor the processes that sustain viable refugia throughout the dry season. This study aims to identify the spatio-temporal controls on wetted habitat availability in intermittent streams within two California watersheds (Coyote Creek in Santa Clara County and the Russian River in Sonoma County). These two watersheds occur in different hydrologic regions and support different fish communities, allowing us to explore the generality of results in different contexts. Using wet-dry mapping data collected among and within years in combination with antecedent climatic data and landscape-level variables, we aim to understand the predictability of the degree and distribution of stream drying. Our approach provides insight on the patterns of stream drying, and is useful for guiding management decisions and conservation action during extreme drought conditions.
- Geomorphology
- Hydrology
- Intermittency
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Presenters/Authors
Hana Moidu
(), University of California, Berkeley, hanamoidu@berkeley.edu;
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Ross Vander Vorste
(), Rivers Study Center and Department of Biology - University of Wisconsin La Crosse , vandervorste.ross@gmail.com;
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Pablo RodrÃguez-Lozano
(), Department of Geography, University of the Balearic Islands, 07122 Palma, Spain, pablo.rodriguez@uib.es;
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Mariska Obedzinski
(), California Sea Grant, mobedzinski@ucsd.edu;
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Ted Grantham
(), University of California, Berkeley, tgrantham@berkeley.edu;
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Stephanie Carlson
(), Department of Environmental Science, Policy, and Management, University of California, Berkeley, California, U.S., smcarlson@berkeley.edu;
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