Williamson County

Ecosystem Overview

The Williamson County ecosystem supports 100 documented wildlife species across 92 taxonomic genera. Located in Williamson 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 Herrin, Williamson County hosts 0% more species diversity. This location ranks #1 for species diversity among 2 Williamson County County natural areas, placing it in the 50th 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 2 locations

Species Distribution

Very Common21 species

Common30 species

Occasional30 species

Rare19 species

Regional Context

Regional Ranking

#1 of 2 locations

50th percentile for diversity

vs. Herrin

+0% 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.

Sceptridium dissectum

Cut-Leaved Grapefern

Very Common5 obs.

Tipularia discolor

Very Common5 obs.

Mertensia virginica

Bluebells

Very Common4 obs.

Stylophorum diphyllum

Yellow Poppy

Very Common4 obs.

Cardinalis cardinalis

Northern Cardinal

Very Common3 obs.

Trillium flexipes

drooping trillium

Common3 obs.

Trillium recurvatum

Prairie Trillium

Common3 obs.

Ludwigia peploides

Water primrose

Common3 obs.

Mitella diphylla

Two-Leaf Mitrewort

Common3 obs.

Setophaga coronata

Myrtle Warbler

Common3 obs.

Erigenia bulbosa

pepper-and-salt

Common3 obs.

Megapallifera mutabilis

Changeable mantleslug

Occasional2 obs.

Perithemis tenera

Eastern Amberwing

Occasional2 obs.

Pseudacris triseriata

Striped Chorus Frog

Occasional2 obs.

Sialia sialis

Eastern Bluebird

Occasional2 obs.

Tachycineta bicolor

Tree/Violet-Green Swallow

Occasional2 obs.

Sayornis phoebe

Eastern Phoebe

Occasional2 obs.

Melanerpes carolinus

Red-bellied Woodpecker

Rare2 obs.

Ambystoma texanum

Smallmouth Salamander

Rare2 obs.

Libellula luctuosa

Widow Skimmer

Rare2 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 Williamson County. Perfect for outdoor adventures, education, and nature exploration.

$6.99

Get Your Personalized Field Guide

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

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$6.99

Regional Comparison

Regional Ranking

100

Species Count

+3233%

vs. Regional Average

Compared to 1 nearby locations in Williamson County County, Illinois

Nearby Natural Areas

Carterville

Importance: 0.30

3 species

+3233% 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 Williamson 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

+3233%

vs. Regional Average

Compared to 1 nearby locations in Williamson County County, Illinois

Nearby Natural Areas

Carterville

Importance: 0.30

3 species

+3233% 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 2 locations

Species Distribution

Very Common21 species

Common30 species

Occasional30 species

Rare19 species

Regional Context

Regional Ranking

#1 of 2 locations

50th percentile for diversity

vs. Herrin

+0% species diversity

Most Common Species

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

Sceptridium dissectum

Cut-Leaved Grapefern

Very Common5 obs.

Tipularia discolor

Very Common5 obs.

Mertensia virginica

Bluebells

Very Common4 obs.

Stylophorum diphyllum

Yellow Poppy

Very Common4 obs.

Cardinalis cardinalis

Northern Cardinal

Very Common3 obs.

Trillium flexipes

drooping trillium

Common3 obs.

Trillium recurvatum

Prairie Trillium

Common3 obs.

Ludwigia peploides

Water primrose

Common3 obs.

Mitella diphylla

Two-Leaf Mitrewort

Common3 obs.

Setophaga coronata

Myrtle Warbler

Common3 obs.

Erigenia bulbosa

pepper-and-salt

Common3 obs.

Megapallifera mutabilis

Changeable mantleslug

Occasional2 obs.

Perithemis tenera

Eastern Amberwing

Occasional2 obs.

Pseudacris triseriata

Striped Chorus Frog

Occasional2 obs.

Sialia sialis

Eastern Bluebird

Occasional2 obs.

Tachycineta bicolor

Tree/Violet-Green Swallow

Occasional2 obs.

Sayornis phoebe

Eastern Phoebe

Occasional2 obs.

Melanerpes carolinus

Red-bellied Woodpecker

Rare2 obs.

Ambystoma texanum

Smallmouth Salamander

Rare2 obs.

Libellula luctuosa

Widow Skimmer

Rare2 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.