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How Low Can You Go (And Live): Determining The Sub-Lethal Exposure Time To Desiccation In Snowberry Maggot Flies (Rhagoletis Zephyria), Alison Klimke, Anna Marie Yanny
How Low Can You Go (And Live): Determining The Sub-Lethal Exposure Time To Desiccation In Snowberry Maggot Flies (Rhagoletis Zephyria), Alison Klimke, Anna Marie Yanny
Scholars Week
The fruit infesting snowberry maggot (Rhagoletis zephyria) inhabits a broad range of habitats across the northern United States, including the humid and arid parts of Washington State. Pupating snowberry maggots (the most vulnerable life stage) exhibit local adaptation, with flies being more desiccation resistant east than west of the Cascades. Previous experiments have measured this difference at eight days after the larvae leave the fruit. However, desiccation impacts on survival may occur much earlier. To better understand the mechanism(s) by which flies protect themselves from desiccation we need to study flies at a sub-lethal level of stress, as dying flies …
Feeding Success Of Harbor Seals In Relation To Hunting Technique At Whatcom Creek, Mackenna Newmarch
Feeding Success Of Harbor Seals In Relation To Hunting Technique At Whatcom Creek, Mackenna Newmarch
Scholars Week
Factors that influence hunting success of seals and sea lions are underrepresented in studies of animal behavior. This is a critical interaction to understand when evaluating the top-down effects of pinnipeds on endangered Pacific salmon (Oncorhynchus spp.). In the Pacific Northwest, harbor seals (Phoca vitulina) consume a very large number of individual salmon, species that are a valuable resource and the subject of costly restorative efforts. A salmon hatchery in Whatcom Creek estuary of downtown Bellingham, Washington, attracts harbor seals that prey on returning adult Pacific salmon. The convenient location and small size of the site allows consistent observation of …