Dr. Sally Hacker in the field.

Dr. Sally Hacker in the field.

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Coast-lovers and plant-lovers everywhere are invited to attend a free webinar, “Plant Life of the Oregon Dunes: Past, Present & Future,” on Tuesday, Oct. 25, at 6 p.m. The speakers for this online event, sponsored by the CoastWatch program of the Oregon Shores Conservation Coalition, are Dr. Sally Hacker and Ian Silvernail.

Oregon’s dune ecosystems host a variety of plants including sand verbena and sea rockets. However, dunes are visibly dominated by grasses. Nearly a century ago, two non-native invasive dune grasses (European beachgrass, Ammophila arenaria, and American beachgrass, A. breviligulata) were intentionally planted along the Pacific coast to stabilize sand and build foredunes. One of the consequences of the introduction of these grasses is a changing plant community and the decline of native plants. Sally Hacker will open the presentation with a brief history of dunes and the invasion of beachgrasses and its consequences. 

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