3 Works

Mucilage-binding to ground protects seeds of many plants from harvester ants: a functional investigation

Vincent Pan, Marshall McMunn, Richard Karban, Jake Goidell, Eric LoPresti & Marjorie Weber
The seeds of many plant species produce mucilage on their surfaces that when wetted and dried, firmly adheres seeds to surfaces and substrates. Previous studies have demonstrated that seed anchorage to the ground can reduce seed predation, though only a few species have thus far been tested. Here we investigated whether binding to the ground reduces seed removal by harvester ants (Pogonomyrmex subdentatus), an important granivore, for 53 species with mucilaginous seeds. We also explored...

Scaling up experimental stress responses of grass invasion to predictions of continental-level range suitability

Bo Zhang, Yingdan Yuan, Lele Shu, Edwin Grosholz, Yuxi Guo, James Cuda, Jinchi Zhang, Lu Zhai & Jiangxiao Qiu
Understanding how the biological invasion is driven by environmental factors will improve model prediction and advance early detection, especially in the context of accelerating anthropogenic ecological changes. Although a large body of studies has examined how favorable environments promote biological invasions, a more comprehensive and mechanistic understanding of invasive species response to unfavorable/stressful conditions is still developing. Grass invasion has been problematic across the globe; in particular, C4 grass invaders, with high drought tolerance, adaptations...

Directed movement changes coexistence outcomes in heterogeneous environments

Bo Zhang
Understanding mechanisms of coexistence is a central topic in ecology. Mathematical analysis of models of competition between two identical species moving at different rates of symmetric diffusion in heterogeneous environments show that the slower mover excludes the faster one. The models have not been tested empirically and lack inclusions of a component of directed movement toward favorable areas. To address these gaps, we extended previous theory by explicitly including exploitable resource dynamics and directed movement....

Registration Year

  • 2021
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  • Dataset
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Affiliations

  • Oklahoma State University
    3
  • University of California, Davis
    2
  • University of Florida
    1
  • Nanjing Forestry University
    1
  • Michigan State University
    1