Denison

Ecosystem Overview

The Denison ecosystem supports 17 documented wildlife species across 17 taxonomic genera. Located in Grayson County, Texas, this area provides critical habitat with diverse natural communities. The location hosts 4 frequently observed species and 3 occasionally documented species, creating a balanced ecosystem with both resident and visiting wildlife. While Sherman nearby has 75% more documented species, Denison offers unique wildlife observation opportunities. This location ranks #4 for species diversity among 8 Grayson County County natural areas, placing it in the 50th percentile for biodiversity.

Biodiversity Highlights

Total Species

Documented wildlife species

Genus Diversity

Taxonomic genera represented

Common Species

Frequently observed species

Rare Species

Occasionally documented species

Regional Rank

Out of 8 locations

Species Distribution

Very Common4 species

Common5 species

Occasional5 species

Rare3 species

Regional Context

Regional Ranking

#4 of 8 locations

50th percentile for diversity

vs. Sherman

-75% 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 17 total documented species.

Oenothera speciosa

white evening-primrose

Very Common2 obs.

Danaus gilippus

Queen

Very Common2 obs.

Megatibicen resh

Very Common2 obs.

Tragidion coquus

Very Common1 obs.

Nathalis iole

Dainty Sulphur

Very Common1 obs.

Pachypsylla venusta

Common1 obs.

Charadrius vociferus

Killdeer

Common1 obs.

Dendrocygna autumnalis

Tree Duck

Common1 obs.

Vicia sativa

Garden vetch

Common1 obs.

Torilis arvensis

Spreading hedgeparsley

Common1 obs.

Battus philenor

Pipevine Swallowtail

Common1 obs.

Acanthocephala declivis

Occasional1 obs.

Argiope aurantia

Yellow Garden Spider

Occasional1 obs.

Pinus taeda

Loblolly pine

Occasional1 obs.

Sherardia arvensis

field madder

Occasional1 obs.

Trifolium incarnatum

Carnation Clover

Occasional1 obs.

Helenium amarum

bitterweed

Occasional1 obs.

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Most Common Species

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Get Your Personalized Field Guide

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

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Regional Comparison

Regional Ranking

Species Count

-53%

vs. Regional Average

Compared to 7 nearby locations in Grayson County County, Texas

Nearby Natural Areas

Sherman

Importance: 0.49

69 species

-75% vs. current

Loy Lake

Importance: 0.35

7 species

+143% vs. current

Pickens Lake

Importance: 0.35

5 species

+240% vs. current

Grayson County

Importance: 0.35

100 species

-83% vs. current

Howe

Importance: 0.30

2 species

+750% vs. current

Whitesboro

Importance: 0.28

70 species

-76% vs. current

Gunter

Importance: 0.25

2 species

+750% 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 Grayson 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

Species Count

-53%

vs. Regional Average

Compared to 7 nearby locations in Grayson County County, Texas

Nearby Natural Areas

Sherman

Importance: 0.49

69 species

-75% vs. current

Loy Lake

Importance: 0.35

7 species

+143% vs. current

Pickens Lake

Importance: 0.35

5 species

+240% vs. current

Grayson County

Importance: 0.35

100 species

-83% vs. current

Howe

Importance: 0.30

2 species

+750% vs. current

Whitesboro

Importance: 0.28

70 species

-76% vs. current

Gunter

Importance: 0.25

2 species

+750% vs. current

About This Comparison

Ecosystem Overview

Biodiversity Highlights

Total Species

Documented wildlife species

Genus Diversity

Taxonomic genera represented

Common Species

Frequently observed species

Rare Species

Occasionally documented species

Regional Rank

Out of 8 locations

Species Distribution

Very Common4 species

Common5 species

Occasional5 species

Rare3 species

Regional Context

Regional Ranking

#4 of 8 locations

50th percentile for diversity

vs. Sherman

-75% species diversity

Most Common Species

Showing 20 most frequently observed species out of 17 total documented species.

Oenothera speciosa

white evening-primrose

Very Common2 obs.

Danaus gilippus

Queen

Very Common2 obs.

Megatibicen resh

Very Common2 obs.

Tragidion coquus

Very Common1 obs.

Nathalis iole

Dainty Sulphur

Very Common1 obs.

Pachypsylla venusta

Common1 obs.

Charadrius vociferus

Killdeer

Common1 obs.

Dendrocygna autumnalis

Tree Duck

Common1 obs.

Vicia sativa

Garden vetch

Common1 obs.

Torilis arvensis

Spreading hedgeparsley

Common1 obs.

Battus philenor

Pipevine Swallowtail

Common1 obs.

Acanthocephala declivis

Occasional1 obs.

Argiope aurantia

Yellow Garden Spider

Occasional1 obs.

Pinus taeda

Loblolly pine

Occasional1 obs.

Sherardia arvensis

field madder

Occasional1 obs.

Trifolium incarnatum

Carnation Clover

Occasional1 obs.

Helenium amarum

bitterweed

Occasional1 obs.

Want the Complete Field Guide?

Get all 17 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.