PARENT SESSION
Poster Session #6: Invasive Species Ecology: Insects and wetlands.
Monday, August 5. Presentation from 5:00 PM to 6:30 PM. Exhibit Hall B & C, TCC
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Dispersal of the Asian longhorned beetle and distribution of at-risk trees in New York.
CHAPUT, EMMA*,1, BANCROFT, JAY1, SMITH, MICHEAL2, 1 Delaware Fish and Wildlife, Little Creek, DE2 USDA, Newark, DE
ABSTRACT- The Asian longhorned beetle, Anoplophora glabripennis, poses a serous threat to eastern deciduous forests because it has established breeding populations in Chicago and New York City. We undertook an extensive mark-recapture experiment to estimate beetle mortality and dispersal in relation to size, sex, density of beetles and host-trees, and daily weather. Results suggest Anoplophora glabripennis is reluctant to leave preferred host-trees but will readily fly to nearby trees. Beetle survival over time shows a long tail with females outlasting males (4 weeks versus two weeks). Daily dispersal rate, displacement suggests that males wander in search of females. Females flew less frequently but to greater distances (8m) and overall displacements, suggesting movement. Using dispersal knowledge, high-resolution satellite imagery of New York City, and the distribution of the infestation, we created a map host-trees at greatest risk from the invasive pest.
KEY WORDS: individual mark-recapture, Anoplophora glabripennis, invasive exotic species, GIS