Devils River State Natural Area Dan Allen Hughes Unit

Ecosystem Overview

The Devils River State Natural Area Dan Allen Hughes Unit ecosystem supports 76 documented wildlife species across 72 taxonomic genera. Located in Val Verde County, Texas, this area provides critical habitat with diverse natural communities. The location hosts 16 frequently observed species and 15 occasionally documented species, creating a balanced ecosystem with both resident and visiting wildlife. While Val Verde County nearby has 5% more documented species, Devils River State Natural Area Dan Allen Hughes Unit offers unique wildlife observation opportunities.

Biodiversity Highlights

Total Species

Documented wildlife species

Genus Diversity

Taxonomic genera represented

Common Species

Frequently observed species

Rare Species

Occasionally documented species

Species Distribution

Very Common16 species

Common23 species

Occasional22 species

Rare15 species

Regional Context

vs. Val Verde County

-5% 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 76 total documented species.

Danaus plexippus

Monarch

Very Common31.58 obs.

Micropterus dolomieu

Bass

Very Common17.01 obs.

Leucophyllum frutescens

Texas Silverleaf

Very Common15.74 obs.

Vachellia rigidula

Blackbush

Very Common11.59 obs.

Rhus virens

Tobacco Sumac

Very Common11 obs.

Dione vanillae

Gulf Fritillary

Common11 obs.

Euptoieta claudia

Variegated Fritillary

Common11 obs.

Diospyros texana

Texas Persimmon

Common11 obs.

Cyprinella venusta

Blacktail Shiner

Common10.73 obs.

Lanius ludovicianus

Loggerhead Shrike

Common10 obs.

Danaus gilippus

Queen

Common10 obs.

Platanus occidentalis

Sycamore

Occasional9.09 obs.

Salvia ballotiflora

Occasional9 obs.

Phoebis sennae

Cloudless Sulfur

Occasional9 obs.

Salpinctes obsoletus

Rock Wren

Occasional8 obs.

Dasylirion texanum

Occasional8 obs.

Lepomis auritus

Redbreast

Occasional7.73 obs.

Passiflora tenuiloba

Rare7 obs.

Melozone fusca

Brown Towhee

Rare7 obs.

Horama panthalon

Texas Wasp Moth

Rare7 obs.

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Most Common Species

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Regional Comparison

Regional Ranking

Species Count

+6%

vs. Regional Average

Compared to 8 nearby locations in Val Verde County County, Texas

Nearby Natural Areas

Val Verde County

Importance: 0.80

80 species

-5% vs. current

Del Rio

Importance: 0.70

80 species

-5% vs. current

Laughlin Air Force Base

Importance: 0.70

80 species

-5% vs. current

Del Rio

Importance: 0.70

77 species

-1% vs. current

Seminole Canyon State Park And Historic Site

in Comstock

Importance: 0.70

74 species

+3% vs. current

Amistad National Recreation Area

in Del Rio

Importance: 0.70

69 species

+10% vs. current

Devils River State Natural Area Del Norte Unit

in Del Rio

Importance: 0.70

62 species

+23% vs. current

Ciudad Acuña

Importance: 0.70

57 species

+33% 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 Val Verde 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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Most Common Species

Showing 20 most frequently observed species out of 76 total documented species.

Danaus plexippus

Monarch

Very Common31.58 obs.

Micropterus dolomieu

Bass

Very Common17.01 obs.

Leucophyllum frutescens

Texas Silverleaf

Very Common15.74 obs.

Vachellia rigidula

Blackbush

Very Common11.59 obs.

Rhus virens

Tobacco Sumac

Very Common11 obs.

Dione vanillae

Gulf Fritillary

Common11 obs.

Euptoieta claudia

Variegated Fritillary

Common11 obs.

Diospyros texana

Texas Persimmon

Common11 obs.

Cyprinella venusta

Blacktail Shiner

Common10.73 obs.

Lanius ludovicianus

Loggerhead Shrike

Common10 obs.

Danaus gilippus

Queen

Common10 obs.

Platanus occidentalis

Sycamore

Occasional9.09 obs.

Salvia ballotiflora

Occasional9 obs.

Phoebis sennae

Cloudless Sulfur

Occasional9 obs.

Salpinctes obsoletus

Rock Wren

Occasional8 obs.

Dasylirion texanum

Occasional8 obs.

Lepomis auritus

Redbreast

Occasional7.73 obs.

Passiflora tenuiloba

Rare7 obs.

Melozone fusca

Brown Towhee

Rare7 obs.

Horama panthalon

Texas Wasp Moth

Rare7 obs.

Want the Complete Field Guide?

Get all 76 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.

Ecosystem Overview

Biodiversity Highlights

Total Species

Documented wildlife species

Genus Diversity

Taxonomic genera represented

Common Species

Frequently observed species

Rare Species

Occasionally documented species

Species Distribution

Very Common16 species

Common23 species

Occasional22 species

Rare15 species

Regional Context

vs. Val Verde County

-5% species diversity

Regional Comparison

Regional Ranking

Species Count

+6%

vs. Regional Average

Compared to 8 nearby locations in Val Verde County County, Texas

Nearby Natural Areas

Val Verde County

Importance: 0.80

80 species

-5% vs. current

Del Rio

Importance: 0.70

80 species

-5% vs. current

Laughlin Air Force Base

Importance: 0.70

80 species

-5% vs. current

Del Rio

Importance: 0.70

77 species

-1% vs. current

Seminole Canyon State Park And Historic Site

in Comstock

Importance: 0.70

74 species

+3% vs. current

Amistad National Recreation Area

in Del Rio

Importance: 0.70

69 species

+10% vs. current

Devils River State Natural Area Del Norte Unit

in Del Rio

Importance: 0.70

62 species

+23% vs. current

Ciudad Acuña

Importance: 0.70

57 species

+33% vs. current