. Critical trends assessment program : keeping an eye on Illinois habitats. Critial trends assessment program; Habitat conservation. Table 4. Total number of CTAP forest sites where sensitive plant species, threatened and endangered plant species, and introduced plant species were sampled. Also included is the number of sites where native and introduced species were dominant' in the ground layer. CTAP random forest sites CTAP reference forest sites Criteria # sites % of total Criteria # sites % of total at least one sensitive species' at least one T & E species at least one introduced spec
. Critical trends assessment program : keeping an eye on Illinois habitats. Critial trends assessment program; Habitat conservation. Table 4. Total number of CTAP forest sites where sensitive plant species, threatened and endangered plant species, and introduced plant species were sampled. Also included is the number of sites where native and introduced species were dominant' in the ground layer. CTAP random forest sites CTAP reference forest sites Criteria # sites % of total Criteria # sites % of total at least one sensitive species' at least one T & E species at least one introduced species 75 ! 110 at least one sensitive species at least one T & E species at least one introduced species 13 2 16 Ground layer Ground layer dominated by native species dominated by introduced species 118 15 dominated by native species dominated by introduced species 19 1 'Dominance was determined by the species with the highest calculated importance value at each site. -Sensirve species are plant species that are highly sensitive to human habitat disturbance. They have a Coefficient of Conservatism value of > Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Illinois. Natural History Survey Division; Illinois. Dept. of Natural Resources. Champaign, Ill. : Illinois Natural History Survey
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