2 Works

Data from: Accounting for the effects of biological variability and temporal autocorrelation in assessing the preservation of species abundance

Adam Tomašových & Susan M. Kidwell
Quantifying the effects of taphonomic processes on species abundances in time-averaged death assemblages (DAs) is pivotal for paleoecological inference. However, fidelity estimates based on conventional “live-dead” comparisons are fundamentally ambiguous: (1) data on living assemblages (LAs) are based on a very short period of sampling and thus do not account for natural variability in the LA, (2) LAs are sampled at the same time as the DA and thus do not necessarily reflect past LAs...

Data from: Predicting the effects of increasing temporal scale on species composition, diversity, and rank-abundance distributions

Adam Tomašových & Susan M. Kidwell
Paleoecological analyses that test for spatial or temporal variation in diversity must consider not only sampling and preservation bias, but also the effects of temporal scale (i.e., time averaging). The species-time relationship (STR) describes how species diversity increases with the elapsed time of observation, but its consequences for assessing the effects of time averaging on diversity of fossil assemblages remain poorly explored. Here, we use a neutral, dispersal-limited model of metacommunity dynamics, with parameters estimated...

Registration Year

  • 2010
    2

Resource Types

  • Dataset
    2

Affiliations

  • University of Chicago
    2