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HEAR's "Island Matrix"
A product of the Hawaiian Ecosystems at Risk Project


Island matrix

The "island matrix" cross-references by Hawaiian island and species, containing expert opinions regarding the ISLANDWIDE controllability of selected alien plant species by island. The information provided in the matrix is currently based on "opinion by committee"--but we have solicited specific, citeable opinions from individuals with expert knowledge on each island for each selected species

NOTE: This information was generated in 1997, and is now quite old. Much of this information may have changed (or have been later found to be inaccurate). Please refer to more recent data sources for more current information. You may contact HEAR (webmaster@hear.org) with specific inquiries.


Expert-validated "island matrix"

(all documents in Adobe Acrobat PDF format):

An OLDER DRAFT version* of the "Island Matrix" is also available. (This version is the only one which currently includes information RE: whether the presence/absence info implied by the matrix data has been cross-checked against HEAR's standard references for existence of herbarium specimen-based published presence/absence citations; however, the info in this version has NOT been double-checked by citeable experts. Also available is this older version's companion document, the HEAR Island Matrix species list*.


[Download Acrobat reader] *This document is in Adobe Acrobat PDF format. If your computer is not already set up to read these files, you can download the FREE Adobe Acrobat reader. You can set up most web browsers to automatically invoke this reader (as a "helper application" or "add-in") upon encountering documents of this type (refer to your browser's documentation for how to do this).


[Download WinZip] **This document is ZIPped (in a compressed format for faster downloading). If your computer is not already set up to read these files, you can download a shareware version of WinZip. You can set up most web browsers to automatically invoke this utility (as a "helper application" or "add-in") upon encountering documents of this type (refer to your browser's documentation for how to do this).

[Species in Hawaii]    [Hawaiian Ecosystems at Risk]

Comments, questions, feedback about this website or its contents? e-mail the HEAR project  (This document was created 23 December 1997 by PT; it was last updated 11 July 2007 by PT.)