Saint Clair County

Ecosystem Overview

The Saint Clair County ecosystem supports 100 documented wildlife species across 95 taxonomic genera. Located in Saint Clair County, Illinois, this area provides critical habitat with diverse natural communities. The location hosts 21 frequently observed species and 19 occasionally documented species, creating a balanced ecosystem with both resident and visiting wildlife. Compared to nearby East St. Louis, Saint Clair County hosts 426% more species diversity. This location ranks #1 for species diversity among 7 Saint Clair County County natural areas, placing it in the 86th percentile for biodiversity.

Biodiversity Highlights

100

Total Species

Documented wildlife species

Genus Diversity

Taxonomic genera represented

Common Species

Frequently observed species

Rare Species

Occasionally documented species

Regional Rank

Out of 7 locations

Species Distribution

Very Common21 species

Common30 species

Occasional30 species

Rare19 species

Regional Context

Regional Ranking

#1 of 7 locations

86th percentile for diversity

vs. East St. Louis

+426% species diversity

Ecosystem Overview

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Biodiversity Highlights

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Species Distribution

Very Common‌

Common‌

Occasional‌

Rare‌

Regional Context

Regional Ranking

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Most Common Species

Showing 20 most frequently observed species out of 100 total documented species.

Lonicera maackii

Bush Honeysuckle

Very Common9 obs.

Dicentra cucullaria

turkey-corn

Very Common7 obs.

Asclepias syriaca

Virginia-Silk

Very Common7 obs.

Odocoileus virginianus

Key Deer

Very Common6 obs.

Pantherophis spiloides

Gray Rat Snake

Very Common6 obs.

Passerina ciris

Painted Bunting

Common6 obs.

Trillium recurvatum

Prairie Trillium

Common5 obs.

Anaxyrus americanus

American Toad

Common5 obs.

Conium maculatum

hemlock

Common5 obs.

Molothrus ater

Brown-headed Cowbird

Common4 obs.

Polystichum acrostichoides

dagger fern

Common4 obs.

Buteo jamaicensis

Red-tailed Hawk

Occasional4 obs.

Egretta caerulea

Little Blue Heron

Occasional4 obs.

Ardea alba

Great Egret

Occasional4 obs.

Sialia sialis

Eastern Bluebird

Occasional3 obs.

Charadrius vociferus

Killdeer

Occasional3 obs.

Thamnophis sirtalis

Common Garter Snake

Occasional3 obs.

Asterocampa celtis

Hackberry Emperor

Rare3 obs.

Libellula luctuosa

Widow Skimmer

Rare3 obs.

Stagmomantis carolina

Rare3 obs.

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Most Common Species

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Want the Complete Field Guide?

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Get Your Personalized Field Guide

Download a professional PDF field guide featuring all the species found in Saint Clair County. Perfect for outdoor adventures, education, and nature exploration.

$6.99

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Regional Comparison

Regional Ranking

100

Species Count

+809%

vs. Regional Average

Compared to 6 nearby locations in Saint Clair County County, Illinois

Nearby Natural Areas

East St. Louis

Importance: 0.50

19 species

+426% vs. current

Belleville

Importance: 0.50

34 species

+194% vs. current

O'Fallon

Importance: 0.49

4 species

+2400% vs. current

Centreville

Importance: 0.34

1 species

+9900% vs. current

Freeburg

Importance: 0.34

3 species

+3233% vs. current

Washington Park

Importance: 0.34

2 species

+4900% vs. current

About This Comparison

These comparisons are based on documented wildlife observations from citizen science data. Locations with higher species counts may have more observation activity, different habitat types, or larger coverage areas. Regional rankings help identify biodiversity hotspots and unique natural areas within Saint Clair County County.

Regional Comparison

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Regional Ranking

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Species Count

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vs. Regional Average

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Nearby Natural Areas

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About This Comparison

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Regional Comparison

Regional Ranking

100

Species Count

+809%

vs. Regional Average

Compared to 6 nearby locations in Saint Clair County County, Illinois

Nearby Natural Areas

East St. Louis

Importance: 0.50

19 species

+426% vs. current

Belleville

Importance: 0.50

34 species

+194% vs. current

O'Fallon

Importance: 0.49

4 species

+2400% vs. current

Centreville

Importance: 0.34

1 species

+9900% vs. current

Freeburg

Importance: 0.34

3 species

+3233% vs. current

Washington Park

Importance: 0.34

2 species

+4900% vs. current

About This Comparison

Ecosystem Overview

Biodiversity Highlights

100

Total Species

Documented wildlife species

Genus Diversity

Taxonomic genera represented

Common Species

Frequently observed species

Rare Species

Occasionally documented species

Regional Rank

Out of 7 locations

Species Distribution

Very Common21 species

Common30 species

Occasional30 species

Rare19 species

Regional Context

Regional Ranking

#1 of 7 locations

86th percentile for diversity

vs. East St. Louis

+426% species diversity

Most Common Species

Showing 20 most frequently observed species out of 100 total documented species.

Lonicera maackii

Bush Honeysuckle

Very Common9 obs.

Dicentra cucullaria

turkey-corn

Very Common7 obs.

Asclepias syriaca

Virginia-Silk

Very Common7 obs.

Odocoileus virginianus

Key Deer

Very Common6 obs.

Pantherophis spiloides

Gray Rat Snake

Very Common6 obs.

Passerina ciris

Painted Bunting

Common6 obs.

Trillium recurvatum

Prairie Trillium

Common5 obs.

Anaxyrus americanus

American Toad

Common5 obs.

Conium maculatum

hemlock

Common5 obs.

Molothrus ater

Brown-headed Cowbird

Common4 obs.

Polystichum acrostichoides

dagger fern

Common4 obs.

Buteo jamaicensis

Red-tailed Hawk

Occasional4 obs.

Egretta caerulea

Little Blue Heron

Occasional4 obs.

Ardea alba

Great Egret

Occasional4 obs.

Sialia sialis

Eastern Bluebird

Occasional3 obs.

Charadrius vociferus

Killdeer

Occasional3 obs.

Thamnophis sirtalis

Common Garter Snake

Occasional3 obs.

Asterocampa celtis

Hackberry Emperor

Rare3 obs.

Libellula luctuosa

Widow Skimmer

Rare3 obs.

Stagmomantis carolina

Rare3 obs.

Want the Complete Field Guide?

Get all 100 species with 3-4 high-quality images each, detailed descriptions, and a downloadable PDF for offline use.

Premium field guide includes identification tips, seasonal patterns, and professional layout optimized for field use.