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Free, publicly-accessible full text available May 2, 2023
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Free, publicly-accessible full text available December 23, 2022
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Abstract Most mammals sniff to detect odors, but little is known how the periodic inhale and exhale that make up a sniff helps to improve odor detection. In this combined experimental and theoretical study, we use fluid mechanics and machine olfaction to rationalize the benefits of sniffing at different rates. We design and build a bellows and sensor system to detect the change in current as a function of odor concentration. A fast sniff enables quick odor recognition, but too fast a sniff makes the amplitude of the signal comparable to noise. A slow sniff increases signal amplitude but delaysmore »Free, publicly-accessible full text available December 1, 2022
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Free, publicly-accessible full text available October 28, 2022
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Abstract Background Distributional responses by alpine taxa to repeated, glacial-interglacial cycles throughout the last two million years have significantly influenced the spatial genetic structure of populations. These effects have been exacerbated for the American pika ( Ochotona princeps ), a small alpine lagomorph constrained by thermal sensitivity and a limited dispersal capacity. As a species of conservation concern, long-term lack of gene flow has important consequences for landscape genetic structure and levels of diversity within populations. Here, we use reduced representation sequencing (ddRADseq) to provide a genome-wide perspective on patterns of genetic variation across pika populations representing distinct subspecies. Tomore »Free, publicly-accessible full text available December 1, 2022
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Free, publicly-accessible full text available September 1, 2022
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Skilled candidates with graduate training are in critical need in the wind energy industry. To prepare for employment in the industry requires both general training (e.g., an engineering degree, a business degree, etc.) and specialized training (e.g., wind energy resource assessment, wind turbine design, environmental impacts training, etc.). Consequently, it is challenging for one educational institution to provide the depth and breadth of course offerings and educational opportunities required. This challenge exists in many multidisciplinary and rapidly evolving fields. WindU is a collaborative National Science Foundation funded effort to respond to this need, by developing and testing a model tomore »Free, publicly-accessible full text available July 1, 2022
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Sponges (phylum Porifera) are common inhabitants of kelp forest ecosystems in California, but their diversity and ecological importance are poorly characterized in this biome. Here I use freshly collected samples to describe the diversity of the order Scopalinida in California. Though previously unknown in the region, four new species are described here: Scopalina nausicae sp. nov., S. kuyamu sp. nov., S. goletensis sp. nov., and S. jali sp. nov.. These discoveries illustrate the considerable uncharacterized sponge diversity remaining in California kelp forests, and the utility of SCUBA-based collection to improve our understanding of this diversity.
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Free, publicly-accessible full text available October 1, 2022
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Free, publicly-accessible full text available July 1, 2022