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National Center for Ecological Analysis and Synthesis

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3581-3590 of 6348
  1. Publication

    Limited hybridization between Quercus lobata and Quercus douglasii (Fagaceae) in a mixed stand in central coastal California

    Many oak species are interfertile, and morphological and genetic evidence for hybridization is widespread. Here we use DNA microsatellite markers to characterize hybridization between two closely related oak species in a mixed stand in central coastal California, Quercus lobata (valley oak) and Q. douglasii (blue oak) (Fagaceae). Genotypes from four microsatellite loci indicate that many alleles are shared between the two species. However, each species harbors unique alleles, and allele frequencies differ significantly.

  2. Publication

    Connecting theoretical and empirical studies of trait-mediated interactions

    Trait‐mediated interactions (TMIs), in which trophic and competitive interactions depend on individual traits as well as on overall population densities, have inspired large amounts of research, but theoretical and empirical studies have not been well connected. To help mitigate this problem, we review and synthesize the theoretical literature on TMIs and, in particular, on trait‐mediated indirect interactions, TMIIs, in which the presence of one species mediates the interaction between a second and third species.

  3. Publication

    Assessing the robustness and optimality of alternative decision rules with varying assumptions

  4. Publication

    The relative likelihood of alternative decision-making rules