Data

David Zaya surrounded by wetland plants
David Zaya sampling at a CTAP wetland site

CTAP plant and bird data can be requested by contacting David Zaya.

CTAP plant data include ground cover estimates for vascular species, shrub frequency, tree frequency and size (dbh), and observations of other species present at a site.  Bird data include the occurrence or abundance of individual species as well as the number of species found at a particular site.

Data files can be made available in multiple formats.

Critical Trends Assessment Program
1816 South Oak Street, MC 652
Champaign, IL 61820
Email: beveroth@illinois.edu
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