Great Wass Island

Ecosystem Overview

The Great Wass Island ecosystem supports 12 documented wildlife species across 12 taxonomic genera. Located in Washington County, Maine, this area provides critical habitat with diverse natural communities. The location hosts 3 frequently observed species and 2 occasionally documented species, creating a balanced ecosystem with both resident and visiting wildlife. While Calais nearby has 85% more documented species, Great Wass Island offers unique wildlife observation opportunities. This location ranks #4 for species diversity among 10 Washington County County natural areas, placing it in the 60th 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 10 locations

Species Distribution

Very Common3 species

Common4 species

Occasional3 species

Rare2 species

Regional Context

Regional Ranking

#4 of 10 locations

60th percentile for diversity

vs. Calais

-85% 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 12 total documented species.

Littorina littorea

Common periwinkle

Very Common2 obs.

Iris versicolor

Water Flag

Very Common2 obs.

Campanula intercedens

Very Common2 obs.

Bombus ternarius

Tricolored Bumble Bee

Very Common1 obs.

Eulithis explanata

White Eulithis Moth

Very Common1 obs.

Anaxyrus americanus

American Toad

Common1 obs.

Tamiasciurus hudsonicus

Ecureuil Roux

Common1 obs.

Porpidia crustulata

Common1 obs.

Danaus plexippus

monarch

Common1 obs.

Betula cordifolia

Eastern Paper Birch

Common1 obs.

Dasiphora fruticosa

Widdy

Common1 obs.

Macaria pustularia

Lesser Maple Spanworm Moth

Occasional1 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 Great Wass Island. Perfect for outdoor adventures, education, and nature exploration.

$6.99

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

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Regional Comparison

Regional Ranking

Species Count

-52%

vs. Regional Average

Compared to 8 nearby locations in Washington County County, Maine

Nearby Natural Areas

Calais

Importance: 0.39

79 species

-85% vs. current

Washington County

Importance: 0.38

100 species

-88% vs. current

MacHias

Importance: 0.36

8 species

+50% vs. current

Salmon Pond

Importance: 0.35

3 species

+300% vs. current

Vining Lake

Importance: 0.35

1 species

+1100% vs. current

Petit Manan Island

Importance: 0.33

7 species

+71% vs. current

Beals Island

Importance: 0.33

1 species

+1100% vs. current

Woodland

Importance: 0.29

4 species

+200% 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 Washington 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

-52%

vs. Regional Average

Compared to 8 nearby locations in Washington County County, Maine

Nearby Natural Areas

Calais

Importance: 0.39

79 species

-85% vs. current

Washington County

Importance: 0.38

100 species

-88% vs. current

MacHias

Importance: 0.36

8 species

+50% vs. current

Salmon Pond

Importance: 0.35

3 species

+300% vs. current

Vining Lake

Importance: 0.35

1 species

+1100% vs. current

Petit Manan Island

Importance: 0.33

7 species

+71% vs. current

Beals Island

Importance: 0.33

1 species

+1100% vs. current

Woodland

Importance: 0.29

4 species

+200% 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 10 locations

Species Distribution

Very Common3 species

Common4 species

Occasional3 species

Rare2 species

Regional Context

Regional Ranking

#4 of 10 locations

60th percentile for diversity

vs. Calais

-85% species diversity

Most Common Species

Showing 20 most frequently observed species out of 12 total documented species.

Littorina littorea

Common periwinkle

Very Common2 obs.

Iris versicolor

Water Flag

Very Common2 obs.

Campanula intercedens

Very Common2 obs.

Bombus ternarius

Tricolored Bumble Bee

Very Common1 obs.

Eulithis explanata

White Eulithis Moth

Very Common1 obs.

Anaxyrus americanus

American Toad

Common1 obs.

Tamiasciurus hudsonicus

Ecureuil Roux

Common1 obs.

Porpidia crustulata

Common1 obs.

Danaus plexippus

monarch

Common1 obs.

Betula cordifolia

Eastern Paper Birch

Common1 obs.

Dasiphora fruticosa

Widdy

Common1 obs.

Macaria pustularia

Lesser Maple Spanworm Moth

Occasional1 obs.

Want the Complete Field Guide?

Get all 12 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.