New COMPADRE & COMADRE versions are out!

Yesterday, coinciding with the symposium “Landscape demography: Population dynamics across spatial scales” at the 2016 Ecological Society of America annual meeting, where we gave the talk “Global plant and animal demography: tearing the curtain and filling up the gap“, we released the new two versions of the sister databases: COMPADRE version 4.0.0 and COMADRE version 2.0.0. These can be downloaded fully open-access at

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Our goals, at COMPADRE & COMADRE: to digitise and standardise matrix population models published and communicated to us by population ecologists, to error-check, fix and complement the information with metadata (e.g. taxonomy, phylogeny, biogeography), and to make it open access. In other words: to bring the field demographic data to your computer.

What’s new in them? More matrix population models, more species, more metadata! The COMPADRE Plant Matrix Database now contains 695 unique taxonomically accepted plant species from 819 published or personally communicated studies, adding up to a total of over 7,000 population matrix models. Similarly, the COMADRE Animal Matrix Database now contains 405 taxonomically accepted animal species outsourced from 508 studies, with a total of 1,927 matrix models.

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Summary statistics of the new versions of COMPADRE and COMADRE: more species, more matrix population models, and more metadata.

The increase in species and number matrices adds up to an unprecedented geographic cover. Clearly, however, geographic and taxonomic biases do exist in the databases, and we encourage users to carry out demographic research using matrix population models in under-explored areas (e.g. Belgium, Ireland, Italy, Greece, Russia, Morocco, Ecuador, Philippines, etc)

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Geographic location of the studies where GPS information was provided in the publications, showing the global coverage of COMPADRE and COMADRE (Salguero-Gómez et al. in prep.)

In addition to the new species and matrix models, we have also archived new variables. For instance, the latitudes and longitudes are no longer provided as separate degrees, minutes and seconds, but rather provided as two vectors (Lat and Lon), which is a more manageable format. For instance, try the following in your R console, after you have downloaded the Rdata objects and loaded them onto R:


We’ve also renamed some other variables to unify the organization of plants and animals, for instance:




More information about the databases, their organisation, the way we digitise, complement, error-check and release information, and some useful workshop materials and R functions (incoming R package… stay tuned!) can be found here.

Happy COM(P)ADRE-ing!

The COMPADRE & COMADRE core committee

     Rob Salguero-Gomez – The University of Sheffield & Max Planck Institute for Demographic Research (MPIDR)

     Owen Jones – Southern Denmark University (SDU), MaxO

     Ruth Archer – Exeter University

     Yvonne Buckley – Trinity College Dublin

     Judy Che-Castaldo – Lincoln Zoo

     Hal Caswell – University of Amsterdam

     Tom Ezard – University of Southampton

     Dave Hodgson – Exeter University

     Alex Scheuerlein – MPIDR

     Jim Vaupel – MPIDR & SDU, MaxO





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