5/25/2016  |   10:30 - 10:45   |  306

INTRODUCTION TO "A CONFLUENCE OF AQUATIC RESEARCH INFLUENCED BY VINCE RESH" We are here to celebrate the career of Vince Resh. In his 40+ years at Cal, Vince has built an indelible record of achievement in education and aquatic science. He has been an extraordinary teacher, winning many teaching awards, and has taught a diversity of courses. He has supervised and mentored dozens of graduate students who have moved on to responsible positions all over the world. Vince's research activities have also been diverse, and he has been enormously productive. Over the past 10 years, most of his publications have addressed biomonitoring, Mediterranean streams, and autecology. Vince's activities as an editor should also be noted. He has also been involved in large-scale ecological studies that have provided public benefit. He has excelled as a collaborator, as evidenced in the the number of papers he has co-authored with people from all over the world. Today's symposium represents the diversity of research topics that have come out of Vince's laboratory at Cal, his many collaborations, and his truly distinguished career.

David Rosenberg (Primary Presenter/Author), Freshwater Institute, drosie@mymts.net;


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5/25/2016  |   10:45 - 11:00   |  306

ODE TO HERACLITUS AND VINCE RESH: THE ROLE OF DISTURBANCE IN STREAM ECOLOGY Almost 30 years ago, Vince Resh and a small working group of prominent aquatic ecologists formulated a new conceptual model of disturbance in lotic ecosystems. Their resulting review paper “The Role of Disturbance in Stream Ecology,” published in J-NABS (1988 7:433-455), generated a series of questions, hypotheses, and approaches useful in investigating disturbance, which has guided much of the contemporary work in this area over the last 3 decades. My talk will focus on a summary of the literature influenced by this citation classic, highlighting the degree to which selected questions/hypotheses advanced in Resh et al. (1988) stimulated a new synthesis of how disturbance is defined, characterized, and compared within and among stream populations, communities, and whole ecosystems.

Jack W. Feminella (Primary Presenter/Author), Auburn University, feminjw@auburn.edu;


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5/25/2016  |   11:00 - 11:15   |  306

RIVER FOOD WEBS OF THE CALIFORNIA NORTH COAST: STANDING ON THE SHOULDERS OF PROFESSOR VINCENT H. RESH Rivers of northwestern California have been sites of surveys, life history studies and field experiments of Vince Resh and his students and colleagues for decades. During my first years at Berkeley, I was welcomed into his group. Then graduate student Jack Feminella and I studied algae and grazers in dark, half-shaded and sunlit rivers (Big Canyon Creek, The Rice Fork Eel River, and Big Sulfur Creek, respectively). As canopy cover increased (from 15-98%) algae on tiles protected from grazers (by the method of Eric McElravy) decreased. Algae on tiles exposed to grazers, however, were uniformly scant across the full range of canopy cover, due to sun-tracking Glossasoma caddisflies. Subsequent work in North Coast rivers showed grazers flattening out biomass consequences of variation in light or nutrient limited productivity, unless grazers were suppressed by predators. Vince Resh shared with many of us his knowledge and fascination with all aspects of aquatic insects. This biological and natural history insight is bedrock for understanding how rivers will respond to environmental change.

Mary Power (Primary Presenter/Author), University of California, Berkeley, mepower@berkeley.edu;
Dr. Mary E. Power is Professor in the Department of Integrative Biology at the University of California, Berkeley. She was awarded an honorary doctorate by Umea University, the Kempe Medal for distinguished ecologists, and the Hutchinson Award from the American Society of Limnologists and Oceanographers. She is a member of the California Academy of Science, the American Academy of Arts and Sciences, and National Academy of Sciences, USA. She has served on the Editorial Board of PNAS (2014 to present) and Science (2006-2009). Mary also served as President of the American Society of Naturalists, and of the Ecological Society of America. Since 1988, she has been the Faculty Director of the Angelo Coast Range Reserve, (one of the UC Natural Reserve System sites, a 3500 ha reserve protected for university teaching and research). She has studied food webs in temperate and tropical rivers, as well as linkages of rivers, watersheds and near-shore environments. Focal organisms include cyanobacteria, algae, invertebrates, fish, estuarine crustaceans and terrestrial grasshoppers, spiders, lizards, birds and bats. By studying how key ecological interactions depend on landscape and temporal contexts, her group hopes to learn how river-structured ecosystems will respond to changes over space and time in climate, land use, and biota. Her group also collaborates closely with Earth and atmospheric scientists in site-based research to investigate linkages among riverine, upland, and near-shore ocean ecosystems.

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5/25/2016  |   11:15 - 11:30   |  306

BIOASSESSMENT IN THE LOWER MEKONG RIVER: TECHNOLOGY TRANSFER TO A DEVELOPING REGION The Mekong River Commission bioassessment project contributed to an assessment of the ecological health of the river and provided a baseline against which the impacts of future developments could be assessed. It aimed to build regional river bioassessment capacity, and develop tools to support the bioassessment and similar projects in the region. The MRC selected representatives from each of the four MRC member countries based on existing skills, and two international mentors: Bruce Chessman and Vince Resh. Field sampling was conducted in the dry season in April at 60 locations over a 5 year period. Mentors supervised sampling and met with the team in September to jointly analyse the results. Capacity of the local team members was developed through work with the mentors. A local specialist prepared a key for the identification of Mekong freshwater macroinvertebrates and the team developed Mekong-specific indicators to allow a quantitative assessment of river condition and a detailed biomonitoring guide so that the surveys can be accurately replicated in the future and the methods used elsewhere in the region.

Bruce Chessman (Primary Presenter/Author), Univerity of New South Wales, brucechessman@gmail.com;


Ian Campbell ( Co-Presenter/Co-Author), Rhithroecology, i.c.campbell@bigpond.com;


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5/25/2016  |   11:30 - 11:45   |  306

DAMS ON MEDITERRANEAN-CLIMATE RIVERS: SUSTAINABILITY AND ECOLOGICAL EFFECTS Civilizations have flourished in water-short Mediterranean environments for millennia, relying on aqueducts to deliver water to cities, and upon reservoirs for seasonal and inter-annual water storage to support irrigated the agriculture ideally suited to Mediterranean climates. With the increased scale of irrigation and water diversions possible since the mid-20th century, Mediterranean-climate rivers are much more impounded than their humid-climate equivalents, resulting in profound alterations to their seasonal hydrologic patterns. By virtue of their sparse vegetative cover and fire regimes, Mediterranean-climate landscapes tend to have higher sediment yields. As dams trap sediment, reservoirs storage capacity is lost (a problem manifest in ancient water systems as well as current), and downstream reaches experience severe sediment starvation, with incision, channel narrowing, and bed coarsening common responses. With anticipated shifts in climate to more intense rainfalls alternating with prolonged droughts, reservoir storage capacity becomes both more essential and more threatened by sedimentation in Mediterranean climates. Downstream of dams, loss of natural sediment load, seasonal flow variability, and frequent flood scour result in profound changes in channel form and aquatic ecology.

G. Mathias Kondolf (Primary Presenter/Author), University of California Berkeley, kondolf@berkeley.edu;


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5/25/2016  |   11:45 - 12:00   |  306

REFLECTIONS FROM A FUMAROLE: PASSING ON VINCE RESH’S LESSONS TO THE NEXT GENERATION OF GRADUATE STUDENTS Professor Vincent Resh has profoundly influenced four decades of graduate students. With 40 students receiving higher degrees under his advisement, Professor Resh has guided thesis projects ranging from the fundamental (e.g., herbivory, caddisfly systematics, wetland ecology) to the applied (e.g., bioassessment, ecosystem restoration, vector biology). Throughout, he has been steadfastly dedicated to three effective principles of graduate advisement. First, Professor Resh challenges incoming students to think in rigorous and integrative ways, not only in formal classes but also with novel data sets that need fresh looks, often leading to the first publication by the student. Second, Professor Resh astutely guides his students to important areas of scholarship but then challenges his students to find independent lines of research that establish them as authorities in new areas. Third, Professor Resh demonstrates and instills the value of effective communication in his students via oral presentations and frequent publication. I will highlight how I have incorporated these mentoring lessons in my own laboratory, which I hope will be carried on by the next generation of graduate students.

Gary Lamberti (Primary Presenter/Author), University of Notre Dame, glambert@nd.edu;


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