%!PS
Column title	Explanation
record-id	Unique identification number assigned by our group to each publication record we considered for inclusion
author	the authors of the publication
year	the year the publication was published
title	the title of the publication
type	the type of publication (e.g. journal article)
journal	the title of the journal in which the publication appeared
volume	the volume of the journal in which the publication appeared
issue	the issue of the journal in which the publication appeared
firstpage	the number of the first page of the publication in the journal
lastpage	the number of the last page of the publication in the journal
abstract	the abstract of the publication, if there is one
database	the online database from which the publication was drawn from to include in our study (e.g. Web of Science)
excluded	after inclusion in our database, if the paper was considered inappropriate for our purpose it was marked for exclusion
species	the species cosidered as an invasive in the publication
country	the country where the process of invasion occurred (when this could be determined) for the publication
state	the state within country (when this was appropriate) where the the process of invasion occurred
locality	the locality (when this could be determined and was an appropriate category) where the process of invasion occurred
latitude	the lattitude where the study took place, when this could be determined
longitude	the longitude where the study took place, when this could be determined
research-type	the methods of the study in the publication (e.g. field experiment, theoretical study, etc.; see Appendices for full list of designations)
ecosystem	the ecosystem where the process of invasion occurred (see Appendices for full list of designations)
biome	the biome where the process of invasion occurred (see Appendices for full list of designations)
focus	the focus of the publication (e.g. evalute an invasion hypothesis, evaluate the impacts of invasion, etc.; see Appendices for full list of designations)
hypothesis	the hypothesis(es) cosidered by the publication (if one was; see Appendices for full list of designations)
superior-character	If the hypothesis considered was the superior fitness characteristics of a invader, which one (see Appendices for full list of designations)
trophic-level	the trophic level of the invasive species considered by the publication (see Appendices for full list of designations)