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Jason J. Head
Group Leader
University of Cambridge


A. Michelle Lawing
Group Leader
Texas A&M University


Jenny L. McGuire
Group Leader
Georgia Institution of Technology


Johannes Müller
Museum für Naturkunde


Gregory P. Dietl
Steering Group
Paleontological Research Institute (PRI)


Jussi T. Eronen
Steering Group
University of Helsinki


Mikael Fortelius
Steering Group
University of Helsinki


P. David Polly
Steering Group
Indiana University


Christoph Scheidegger
Steering Group
Swiss Federal Research Institute WSL


Nils Chr. Stenseth
Steering Group
University of Oslo


Resources for Ecometrics

Learning and Teaching Resources

Ecometrics Slides

These slides depict theory and examples of ecometrics, a trait-based, community-based approach to interactions between organisms and environments. Includes maps of ecometric traits in living vertebrates, overview diagrams explaining trait-environment relationships, and a bibligraphy of references to the images.
[PowerPoint Format, 25 Mb, click slide at right to download]

Ecometric Terms

Definitions of common ecometric terms from Polly & Head, 2015. [PDF Format, 55 Kb, click cover at right to download]

Overview of Ecometrics

Review paper by Polly and Head (2015) that explains the principles of ecometrics, with applied examples from carnivore limb traits and herbivore tooth crown heights. Topics covered include functional trait distributions in living vertebrates, functional trait turnover in the fossil record, effects of anthropogenic change on functional trait patterns, and probabalistic approaches to studying the trait-environment relationship. [PDF Format, 11 Mb, click image at right to download]

Ecometric Data Resources

Geography and Climate Sampled at 50km

These relational database tables contain elevation, climate, vegetation, and ecological region data that have been resampled using a grid of points spaced equidistantly at 50km. Equidistant spacing circumvents the spatial bias that arises poleward in data gridded by latitude and longitude. 50km spacing is approximately the grain size for paleontological assemblages, which can often include individuals transported by predators and fluvial activity.

[SQL Insert Format, 1.8 Mb, click icon at right to download]

Elevation from "TerrainBase Global Land Elevation and Ocean Depth" from the National Geophysical Data Center and World Data Centers-A for Solid Earth Geophysics and for Marine Geology and Geophysics (NGDC/WDC-A)

Precipitation and Temperature
from "Global Air Temperature and Precipitation: Regridded Monthly and Annual Climatologies" from Wilmott, Matsuura and Legates, Center for Climatic Research, University of Delaware.

Macrovegetation cover
from Matthews, 1984. "Prescription of Land-surface Boundary Conditions in GISS GCM II: A Simple Method Based on High-resolution Vegetation Data Sets". NASA TM-86096.

from R.G. Bailey, "Ecoregions of North America", Rocky Mountain Research Station, US Forest Service, Fort Collins, Colorado.

Bioclimatic variables
on temperature, seasonality, precipitation, etc. from the WorldClim Global Climate Data set compiled by Hijmans et al., 2005.

The gridpoint system can be cited as "Polly, 2010."