San Juan County

Ecosystem Overview

The San Juan County ecosystem supports 100 documented wildlife species across 94 taxonomic genera. Located in San Juan County, Colorado, 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 Arrow Lake, San Juan County hosts 0% more species diversity. This location ranks #1 for species diversity among 4 San Juan County County natural areas, placing it in the 75th 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 4 locations

Species Distribution

Very Common21 species

Common30 species

Occasional30 species

Rare19 species

Regional Context

Regional Ranking

#1 of 4 locations

75th percentile for diversity

vs. Arrow Lake

+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.

Populus tremuloides

Aspen Poplar

Very Common12 obs.

Rhodiola rhodantha

red orpine

Very Common8 obs.

Chamaenerion angustifolium

French-Willow

Very Common8 obs.

Lonicera involucrata

Californian Honeysuckle

Very Common8 obs.

Gentiana parryi

Very Common8 obs.

Noccaea fendleri

Common7 obs.

Juniperus communis

juniper

Common7 obs.

Hymenoxys hoopesii

orange-sneezeweed

Common6 obs.

Paxistima myrsinites

goatbrush

Common6 obs.

Sambucus racemosa

red-berried elder

Common5 obs.

Senecio bigelovii

Common4 obs.

Aquilegia coerulea

Rocky Mountain columbine

Occasional4 obs.

Veratrum californicum

California false hellebore

Occasional4 obs.

Achillea millefolium

yarrow, milfoil

Occasional4 obs.

Penstemon whippleanus

Whipple's penstemon

Occasional4 obs.

Leucanthemum vulgare

ox-eye daisy

Occasional4 obs.

Callospermophilus lateralis

Golden Mantled Ground Squirrel

Occasional4 obs.

Geum rossii

alpine avens

Rare4 obs.

Chondestes grammacus

Lark Sparrow

Rare4 obs.

Alces alces

Eich

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 San Juan County. Perfect for outdoor adventures, education, and nature exploration.

$6.99

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Regional Comparison

Regional Ranking

100

Species Count

+9900%

vs. Regional Average

Compared to 3 nearby locations in San Juan County County, Colorado

Nearby Natural Areas

Andrews Lake

Importance: 0.35

2 species

+4900% vs. current

Little Molas Lake

Importance: 0.35

1 species

+9900% vs. current

Molas Lake

Importance: 0.20

1 species

+9900% 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 San Juan 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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Regional Comparison

Regional Ranking

100

Species Count

+9900%

vs. Regional Average

Compared to 3 nearby locations in San Juan County County, Colorado

Nearby Natural Areas

Andrews Lake

Importance: 0.35

2 species

+4900% vs. current

Little Molas Lake

Importance: 0.35

1 species

+9900% vs. current

Molas Lake

Importance: 0.20

1 species

+9900% 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 4 locations

Species Distribution

Very Common21 species

Common30 species

Occasional30 species

Rare19 species

Regional Context

Regional Ranking

#1 of 4 locations

75th percentile for diversity

vs. Arrow Lake

+0% species diversity

Most Common Species

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

Populus tremuloides

Aspen Poplar

Very Common12 obs.

Rhodiola rhodantha

red orpine

Very Common8 obs.

Chamaenerion angustifolium

French-Willow

Very Common8 obs.

Lonicera involucrata

Californian Honeysuckle

Very Common8 obs.

Gentiana parryi

Very Common8 obs.

Noccaea fendleri

Common7 obs.

Juniperus communis

juniper

Common7 obs.

Hymenoxys hoopesii

orange-sneezeweed

Common6 obs.

Paxistima myrsinites

goatbrush

Common6 obs.

Sambucus racemosa

red-berried elder

Common5 obs.

Senecio bigelovii

Common4 obs.

Aquilegia coerulea

Rocky Mountain columbine

Occasional4 obs.

Veratrum californicum

California false hellebore

Occasional4 obs.

Achillea millefolium

yarrow, milfoil

Occasional4 obs.

Penstemon whippleanus

Whipple's penstemon

Occasional4 obs.

Leucanthemum vulgare

ox-eye daisy

Occasional4 obs.

Callospermophilus lateralis

Golden Mantled Ground Squirrel

Occasional4 obs.

Geum rossii

alpine avens

Rare4 obs.

Chondestes grammacus

Lark Sparrow

Rare4 obs.

Alces alces

Eich

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.