3 Works

A role for myosin II cluster and membrane energy in cortex rupture for Dictyostelium discoideum cells

Emmanuel Asante-Asamani, Daniel Grange, Devarshi Rawal, Zully Santiago, John Loustau & Derrick Brazill
Blebs, pressure driven protrusions of the cell membrane, facilitate the movement of eukaryotic cells such as the soil amoeba Dictyostelium discoideum, white blood cells and cancer cells. Blebs initiate when the cell membrane separates from the underlying cortex. A local rupture of the cortex, has been suggested as a mechanism by which blebs are initiated. However, much clarity is still needed about how cells inherently regulate rupture of the cortex in locations where blebs are...

Divergent water requirements partition exposure risk to parasites in wild equids

Kaia Tombak, Laurel Easterling, Lindsay Martinez, Monica Seng, Liana Wait & Daniel Rubenstein
For grazing herbivores, dung density in feeding areas is an important determinant of exposure risk to faecal-orally transmitted parasites. When host species share the same parasite species, a non-random distribution of their cumulative dung density and/or non-random ranging and feeding behaviour may skew exposure risk and the relative selection pressure parasites impose on each host. The arid-adapted Grevy’s zebra (Equus grevyi) can range more widely than the water-dependent plains zebra (Equus quagga), with which it...

Large Herbivore Nemabiomes: Patterns of Diversity and Sharing

Georgia Titcomb, Johan Pansu, Matthew Hutchinson, Kaia Tombak, Christina Hansen, Chris Baker, Tyler Kartzinel, Hillary Young & Robert Pringle
Amidst global shifts in the distribution and abundance of wildlife and livestock, we have only a rudimentary understanding of ungulate parasite communities and parasite-sharing patterns. We used qPCR and DNA metabarcoding of fecal samples to characterize gastrointestinal nematode (Strongylida) community composition and sharing among 17 sympatric species of wild and domestic large mammalian herbivore in central Kenya. We tested a suite of hypothesis-driven predictions about the role of host traits and phylogenetic relatedness in describing...

Registration Year

  • 2022
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Affiliations

  • Hunter College
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  • Princeton University
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  • Baruch College
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  • The Wildlife Society
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  • University of California, Santa Barbara
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  • Clarkson University
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  • University of Montpellier
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  • Brown University
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  • Stony Brook University
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