Revillagigedo Island

Ecosystem Overview

The Revillagigedo Island ecosystem supports 100 documented wildlife species across 91 taxonomic genera. Located in Ketchikan Gateway, Alaska, 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. This location ranks #2 for species diversity among 3 Ketchikan Gateway County natural areas, placing it in the 33th 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 3 locations

Species Distribution

Very Common21 species

Common30 species

Occasional30 species

Rare19 species

Regional Context

Regional Ranking

#2 of 3 locations

33th percentile for diversity

vs. Ketchikan Gateway

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.

Rubus spectabilis

Salmonberry

Very Common13 obs.

Lysichiton americanus

American skunk cabbage

Very Common10 obs.

Orgyia antiqua

Moth

Very Common7 obs.

Ariolimax columbianus

Pacific banana slug

Very Common7 obs.

Tsuga heterophylla

western hemlock

Very Common7 obs.

Gaultheria shallon

shallal

Common6 obs.

Struthiopteris spicant

deer fern

Common6 obs.

Hylocomium splendens

Stairstep Moss

Common6 obs.

Picea sitchensis

Sitka Spruce

Common6 obs.

Rhytidiadelphus loreus

lanky moss

Common5 obs.

Athyrium filix-femina

lady-fern

Common5 obs.

Maianthemum dilatatum

deerberry

Occasional5 obs.

Streptopus amplexifolius

Cucumber-Root

Occasional4 obs.

Thuja plicata

giant arborvitae

Occasional4 obs.

Rhododendron menziesii

smooth menziesia

Occasional4 obs.

Fomitopsis ochracea

Occasional4 obs.

Cornus unalaschkensis

cordilleran bunchberry

Occasional4 obs.

Sambucus racemosa

red-berried elder

Rare4 obs.

Vaccinium parvifolium

red-huckleberry

Rare4 obs.

Polystichum munitum

western sword fern

Rare4 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 Revillagigedo 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 Revillagigedo Island. Perfect for outdoor adventures, education, and nature exploration.

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$6.99

Regional Comparison

Regional Ranking

100

Species Count

+85%

vs. Regional Average

Compared to 2 nearby locations in Ketchikan Gateway County, Alaska

Nearby Natural Areas

Ketchikan Gateway

Importance: 0.37

100 species

0% vs. current

Gravina Island

Importance: 0.21

7 species

+1329% 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 Ketchikan Gateway 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

+85%

vs. Regional Average

Compared to 2 nearby locations in Ketchikan Gateway County, Alaska

Nearby Natural Areas

Ketchikan Gateway

Importance: 0.37

100 species

0% vs. current

Gravina Island

Importance: 0.21

7 species

+1329% 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 3 locations

Species Distribution

Very Common21 species

Common30 species

Occasional30 species

Rare19 species

Regional Context

Regional Ranking

#2 of 3 locations

33th percentile for diversity

vs. Ketchikan Gateway

0% species diversity

Most Common Species

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

Rubus spectabilis

Salmonberry

Very Common13 obs.

Lysichiton americanus

American skunk cabbage

Very Common10 obs.

Orgyia antiqua

Moth

Very Common7 obs.

Ariolimax columbianus

Pacific banana slug

Very Common7 obs.

Tsuga heterophylla

western hemlock

Very Common7 obs.

Gaultheria shallon

shallal

Common6 obs.

Struthiopteris spicant

deer fern

Common6 obs.

Hylocomium splendens

Stairstep Moss

Common6 obs.

Picea sitchensis

Sitka Spruce

Common6 obs.

Rhytidiadelphus loreus

lanky moss

Common5 obs.

Athyrium filix-femina

lady-fern

Common5 obs.

Maianthemum dilatatum

deerberry

Occasional5 obs.

Streptopus amplexifolius

Cucumber-Root

Occasional4 obs.

Thuja plicata

giant arborvitae

Occasional4 obs.

Rhododendron menziesii

smooth menziesia

Occasional4 obs.

Fomitopsis ochracea

Occasional4 obs.

Cornus unalaschkensis

cordilleran bunchberry

Occasional4 obs.

Sambucus racemosa

red-berried elder

Rare4 obs.

Vaccinium parvifolium

red-huckleberry

Rare4 obs.

Polystichum munitum

western sword fern

Rare4 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.