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Project Overview

GW19-188
Project Type: Graduate Student
Funds awarded in 2019: $25,000.00
Projected End Date: 12/31/2019
Grant Recipient: Oregon State University
Region: Western
State: Oregon
Major Professor:
Katherine Arstingstall
Email
Oregon State University
Major Professor:
Dr. Sandy DeBano
Email
Oregon State University
Ken Frost
Email
Oregon State University, Hermiston Agricultural Research and Ext
Xiaoping Li
Email
Oregon State University, Hermiston Agricultural Research and Ext
Martin Pitney
Email
Photography Plus, Inc.
David Wooster
Email
Oregon State University

Enhancing Pollinator Habitat in Pacific Northwest Croplands Using DNA Metabarcoding Techniques

Commodities

  • Agronomic: corn, grass (misc. annual), other, potatoes, wheat
  • Fruits: apples, apricots, cherries, grapes, melons, other, peaches, pears
  • Vegetables: beans, onions, peas (culinary), sweet corn
  • Additional Plants: herbs, other
  • Animals: bees

Practices

  • Crop Production: pollination, pollinator habitat
  • Education and Training: extension, mentoring, networking, on-farm/ranch research
  • Natural Resources/Environment: wildlife

Proposal abstract:

As the global population continues to expand, there is a need for increased food production. Over 35% of the world’s food supply is animal-pollinated, and, therefore, there is also an increasing need for pollination services. However, many pollinator populations, including those of native bees, have been decreasing world-wide. Producers are quickly becoming more aware of the benefits associated with enhancing native bee habitat on and around their croplands. However, one of the most significant challenges that producers face is uncertainty about which species to plant to enhance crop pollination. Most pollinator-friendly plant recommendations are based on anecdotal evidence and are not tailored for particular regions, bee communities, or crop phenologies. More research on pollinator foraging is needed due to a lack of reliable empirical data on which plants are best for supporting native bees in crop production areas. Recent developments in molecular ecology provide a novel solution to this problem: DNA metabarcoding. The goal of this project is to use DNA metabarcoding on pollen collected from foraging bees to identify plant species that serve as important food sources for native bees on and around croplands in the Pacific Northwest (PNW). This method is less time consuming and requires less expertise than traditional methods for describing plant-pollinator interactions (e.g., field observations and light microscopy). DNA metabarcoding techniques yield higher taxonomic resolution and provide a more complete record of plant use during a foraging bout relative to visual observations. Once we have identified preferred plant species, we will disseminate this information to producers and other land managers in the Pacific Northwest through scientific publications, presentations, outreach events, and an extension publication providing specific guidance. These data and outreach products will help producers in the PNW develop sustainable agriculture practices that will ultimately enhance native bee habitat and increase crop yields and profits.

Project objectives from proposal:

The objectives of this study are to:

 

  1. document flower-native bee associations in agroecosystems of eastern Oregon using both behavioral observations and DNA metabarcoding in June-August 2019;
  2. identify non-crop plant species that serve as important food sources for native bees by comparing each plant species availability in the environment with its use by native bees by the end of the first year of the project; and
  3. disseminate the results of the study to producers currently engaged in native bee habitat projects on their farms as well as other interested parties through various outlets during the second year of the project.  
Any opinions, findings, conclusions, or recommendations expressed in this publication are those of the author(s) and do not necessarily reflect the view of the U.S. Department of Agriculture or SARE.

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