Tool tailgate with Ken Moore

Photo: JP Marie

Bay to Basin: Coordinating Response to Invasive Plants across California

October 11-12, 2012, Rohnert Park

View full program and abstracts.

Links below are pdf files converted from Powerpoint presentations.

Session 1. Ecological Change

• Landscape management practices in Late Holocene California: implications for contemporary stewardship. Kent Lightfoot, UC Berkeley
• The California Landscape Conservation Cooperative. Christine Howell, USDA Forest Service
• The Bay Area Upland Habitat Goals Project. Stuart Weiss, Creekside Center for Earth Observations

Session 2. Annual Member Meeting

• New and expanding weeds in California. Dean Kelch, CA Dept. of Food and Agriculture
• Battle of the marshes: invasive plants and wetland restoration North and South. Sam Schuchat, California State Coastal Conservancy

Session 3. Tools and Strategies for Effective Invasive Plant Management

• Operational performance of a Herbicide Ballistic Technology (HBT) helicopter platform targeting incipient populations of miconia (Miconia calvescens) in Hawaiian watersheds. James Leary, University of Hawaii
• Use and effectiveness of landscape-scale surveys in developing weed management strategy. Jutta Burger, Irvine Ranch Conservancy
• Seed bank limitation, management and overcoming cycles of exotic plants species hierarchical shifts. Sara Jo Dickens, UC Berkeley
• The Butterfly Effect: Assessing herbicide impacts to invertebrates. Joel Trumbo, California Dept. of Fish & Game (presented by Julie Horenstein)

Session 4. Student Papers

• Development and validation of a more accurate weed risk assessment tool for evaluating the invasive potential of ornamental plants. Christiana Conser, UC Davis
• Effects of soil inocula on the growth responses of native annual forbs and the invasive annual grass, Bromus diandrus. Bridget Hilbig, UC Riverside
• Divergence in acquisition and allocation patterns among native and introduced populations of an annual grass contribute to invasiveness. Matt O’Neill, UC Riverside

Session 5. Managing Grassland Weeds

• Preserving serpentine grasslands: ten years of research and management to
  control barbed goatgrass (Aegilops triuncialis) at the McLaughlin Reserve. Paul Aigner, UC Davis
• Controlling the spread of velvet grass (Holcus lanatus) in California coastal
  prairies: the benefits and constraints of five management techniques. Michelle Cooper, UC Bodega Marine Reserve
• Pre-emergent control of medusahead on California annual rangelands with aminopyralid. Guy Kyser, UC Davis
• Control of yellow starthistle and reintroduction of native perennial bunchgrasses. Jennifer Tiehm, Pinnacles
  National Monument

Weed wrench clenching Scotch broom

Photo: William Welsch, 2012 photo contest

Session 6. Working Across Taxa

• Plant-microbe interactions and plant invasions.
  Ingrid Parker, UC Santa Cruz
• Native pollinators and invasive plants: Implications for agriculture and restoration. Victoria Wojcik, Pollinator Partnership
• Mutualisms between native and non-native species: Global trends and Californian case studies. Clare Aslan, Arizona-Sonora Desert Museum

Session 7. Pesticide Laws and Regulations

• Laws and regulations for pesticide applicators.Andrew Smith, Sonoma County Dept. of Agriculture
• Field safety for pesticide applicators. Mark Heath, Shelterbelt Builders
• Calibration of herbicide applications for natural areas. Guy Kyser, UC Davis
• California’s revised NPDES aquatic pesticide permit update: What’s new? Mike Blankinship, Blankinship and Assoc.

Session 8. Invasive Plant Management and Programs I

• Use of spatially-referenced inventory data to inform management of Lepidium
  latifolium in tidal marshlands of the San Francisco Estuary. Giselle Block, USFWS
• California’s RCDs: Partnering to combat invasive plants statewide. Karen Buhr,
  California Assoc. of Resource Conservation Districts
• Controlling harding grass (Phalaris aquatica) in a grassland setting: An interim report. Stassia Samuels and Laura Julian, Redwood National amd State Parks
• Controlling invasive plants in Pacific Gas and Electric’s hydroelectric watersheds. Shannon Dinis, Pacific Gas and Electric Company
• Long-term effects of burn severity and fire frequency on vegetation and seedbanks in the Mojave Desert. Rod Klinger, USGS

Session 9. Invasive Plant Management and Programs II

• Coordinated regional strategy in the central Sierra using CalWeedMapper. Wendy West, UC Cooperative Extension
• Restoration, flood conveyance, and stormwater management: Emerging criteria for vegetation management in urban streams and flood-prone areas. Mark Newhouser, Sonoma Ecology Center (presentation not available)
• Reliably reducing milk thistle (Silybum marianum) to zero density: A treatment model for annual weeds with plastic life cycles. Tony Summers, Catalina Island Conservancy
• European dune grass control: 15 years of adaptive management. Tim Hyland, California State Parks

Session 10. Working Across Time (panel discussion)

• In the coming decades, climate change will make “restoration” even more of a moving target.
  Talk of “novel ecosystems” and “assisted migration” is growing more common. A panel of
  practitioners and researchers will discuss the challenge of setting goals for research and
  stewardship. Panelists’ summary.

Posters

• Assessing multiple treatment methods to control Festuca arundinacea using prescribed
  burning, herbicide, brushcutting and hydromechanical obliteration (H_M_O). Maria Alvarez, Golden Gate National
  Recreation Area
• Invasive aquatic weeds: Implications for mosquito and vector management activities. C. E. Blair, Mosquito and Vector Management District of Santa Barbara County
• Slope instability increased by Cryptomaria japonica in Sichuan earthquake zone. Carla Bossard, St. Mary’s College of California
• The California firewood task force: A multiagency response to forest health threats posed by movement of firewood.Susan Frankel, US Forest Service
• Searching for a silver bullet: reducing the invasive Sahara mustard while preserving native wildflowers. Chris McDonald, UC Cooperative Extension,
  Riverside
• Setting regional strategies for invasive plant management using CalWeedMapper. Dana Morawitz, Cal-IPC
• Is mastication plus prescribed burning an effective control method for multi-acre medusahead (Elymus caput-medusae) infestations? Courtney Rowe, Plumas National Forest
• Is imazapyr an effective alternative to glyphosate for the control of jubatagrass? Don Thomas, San Francisco Public Utilities Commission
• Differential terrestrial pulmonate gastropod species composition inside and outside eucalyptus forests. Michael Walgren, California Department of Parks and Recreation
• Preventing the introduction and spread of invasive weeds: engaging the construction, aggregate, and utility industries and land managers. Wendy West, UC Cooperative Extension

Discussion Groups

1. New Weed Control Handbook
2. Prevention Best Management Practices
3. Reducing the potential for herbicide impacts on wildlife (Herbicide Survey Results | Which Herbicide? )
4. Seeking funding in a competitive environment (Introduction | NRCS | Wildlife Conservation Board | Wetlands Recovery Project)
5. Wild pollinators and weeds
6. A coordinated statewide management strategy for stinkwort (Dittrichia graveolens) (Presentation | Notes)
7. Updating GeoWeed (Presentation)

Symposia Archive
Presentations, proceedings and working group notes for previous years’ symposia:
2011 |
2010 |
2009 |
2008 |
2007 |
2006 |
2005 |
2004 |
2003 |
2000-2002 |
1999 |
1998 |
1997 |
1996 |
1995