Skip to main content

National Center for Ecological Analysis and Synthesis

Search Results

3961-3970 of 6248
  1. Publication

    Lack of community saturation at the beginning of the Paleozoic plateau: The dominance of regional over local processes

    Long-term diversity equilibria, ecological incumbency, and widespread recurrent fossil assemblages have each been cited as evidence that local processes, such as competition, played an important role in structuring communities over geologic time. We analyze the relationship between local and regional diversity in tropical marine communities spanning approximately 13 Myr of the Late Ordovician to test for the role of local processes in structuring local communities.

  2. Publication

    A unified mathematical framework for the measurement of richness and evenness within and among multiple communities

  3. Publication

    Increased longevities of post-Paleozoic marine genera after mass extinctions

    Cohorts of marine taxa that originated during recoveries from mass extinctions were commonly more widespread spatially than those originating at other times. Coupled with the recognition of a correlation between the geographic ranges and temporal longevities of marine taxa, this observation predicts that recovery taxa were unusually long-lived geologically. We analyzed this possibility by assessing the longevities of marine genus cohorts that originated in successive substages throughout the Phanerozoic.

  4. Publication

    Land plant extinction at the end of the Cretaceous: A quantitative analysis of the North Dakota megafloral record

  5. Publication

    Forcible eviction and prevention of recruitment in the clown anemonefish

  6. Publication

    Better inferences from population-dynamics experiments using Monte Carlo state-space likelihood methods

  7. Publication

    Monte Carlo state-space likelihoods by weighted posterior kernel density estimation