This application is intended to supplement one already submitted by my postdoc Steve. Between Steve's projects and those outlined in this below, the Cardinale lab will have a 'base' crew of 3 to 4 ind. at SNARL throughout the summer (roughly June 15-August 24). In addition, we will have key sampling periods at the beginning (last two weeks of June) and end (mid to late August) of the season where there will be 5-6 people at SNARL. Steve Zeug has already submitted an application detailing his research project. Here I outline the other 2 experiments that will be performed by my research group this summer. These two projects are associated with my NSF grant 0614428, which is in its final year. 1. REU (Research Experience for Undergrads) project (Braden Lewis): This experiment will place 18, 2-m long channels at the base of the flow structures in Convict Creek. The student will use these to create food-webs that (i) differ in their number of invertebrate herbivore species x (ii) the presence/absence of an invertebrate herbivore. The student with then measure primary production as a response variable and ask how increasing complexity of the food-web impacts biological production. 2. Ph.D. experiemnt (Ian Carroll): Ian will perform a repeat of the experiment he ran at SNARL in 2007. In this experiment, he will place roughly 30 microcosms (2-L buckets) streamside to Convict Creek, and then circulate stream water through these. He will use serial dilutions to manipulate the diveristy of algae and examines how this impacts primary production.

Visit #17594 @Sierra Nevada Aquatic Research Laboratory

Approved

Under Project # 6793 | Research

Effects of stream algal diversity on primary production and nutrient cycling

faculty - University of California, Santa Barbara


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Bradley Cardinale Jun 15 - Aug 25, 2009 (72 days)
Bradley Cardinale Jun 15 - Aug 25, 2009 (72 days)

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