Seed Bank Diversity of Middle Sacramento Oxbox Lakes

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Seed Bank Diversity of Middle Sacramento Oxbox
Lakes
L.A. Cochrane and V.T. Parker Department of
Biology San Francisco State University
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Introduction Oxbow Lakes and Invasive Species
Results
Principal Points
Research focused on the central section of the
Sacramento River to the north and south of Chico.
Nine different oxbow lakes were selected that
fell into 3 morphological classes depending on
their degree of connection to the river. Most of
these oxbows arose during a time when the
Sacramento was less regulated in its water flow.
Seed bank dynamics
Currently processing 2008 collections, especially
the identifications Much greater diversity
emerges from saturated rather than submerged
treatments Most of the diversity seems to be
freshwater wetland species, with particularly
high numbers of Cyperaceae and Poaceae A number
of widespread agricultural weeds Saturated
treatments yielded approximately Xm-2 Submerged
treatments yielded approximately Xm-2
Influence of Ludwigia peploides subsp.
montevidensis
Acknowledgements Jesus the Frenchies of
Course!!! Dont forget the UCB crew, all the
people who gave you permission, and the Nature
Conservancy for that house to stay in! Special
thanks to all the individuals who helped with
your collections Stephen Ingalls, but lots of
others. Funding was provided by SFSU via the IRA
program and didnt you get a graduate student
award?