Lake Oswego

Ecosystem Overview

The Lake Oswego ecosystem supports 53 documented wildlife species across 50 taxonomic genera. Located in Oregon, this area provides critical habitat for regional wildlife. The location hosts 11 frequently observed species and 10 occasionally documented species, creating a balanced ecosystem with both resident and visiting wildlife. While Oregon nearby has 47% more documented species, Lake Oswego offers unique wildlife observation opportunities. This location ranks #96 for species diversity among 427 Oregon natural areas, placing it in the 78th 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

#96

Regional Rank

Out of 427 locations

Species Distribution

Very Common11 species

Common16 species

Occasional16 species

Rare10 species

Regional Context

Regional Ranking

#96 of 427 locations

78th percentile for diversity

vs. Oregon

-47% 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 53 total documented species.

Ariolimax columbianus

Pacific banana slug

Very Common3 obs.

Vaccinium parvifolium

red-huckleberry

Very Common3 obs.

Acer macrophyllum

Big-Leaf Maple

Very Common2 obs.

Salticus scenicus

Zebra Jumper

Very Common2 obs.

Monadenia fidelis

Very Common2 obs.

Leptoglossus occidentalis

Western Conifer-Seed Bug

Common2 obs.

Geum urbanum

wood avens

Common2 obs.

Fomitopsis mounceae

Common2 obs.

Xylaria hypoxylon

Candle-Snuff Fungus

Common2 obs.

Allogona townsendiana

Common1 obs.

Arion ater

European black slug

Common1 obs.

Arion intermedius

Hedgehog slug

Occasional1 obs.

Ganoderma applanatum

Artist's Bracket

Occasional1 obs.

Colaptes auratus

common flicker

Occasional1 obs.

Pleurotus ostreatus

Oyster Mushroom

Occasional1 obs.

Thryomanes bewickii

Bewick'S Wren (Spilurus Group)

Occasional1 obs.

Melospiza melodia

Song Sparrow

Occasional1 obs.

Phaeolus schweinitzii

Dyer's Mazegill

Rare1 obs.

Prophysaon andersonii

Reticulate taildropper

Rare1 obs.

Tylobolus uncigerus

Rare1 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 Lake Oswego. Perfect for outdoor adventures, education, and nature exploration.

$6.99

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Regional Comparison

Regional Ranking

Species Count

-46%

vs. Regional Average

Compared to 8 nearby locations in Oregon

Nearby Natural Areas

Oregon

Importance: 0.74

100 species

-47% vs. current

Portland

Importance: 0.65

100 species

-47% vs. current

Eugene

Importance: 0.54

100 species

-47% vs. current

Salem

Importance: 0.51

100 species

-47% vs. current

Corvallis

Importance: 0.48

100 species

-47% vs. current

Bend

Importance: 0.47

100 species

-47% vs. current

Medford

Importance: 0.47

100 species

-47% vs. current

Astoria

Importance: 0.46

91 species

-42% 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 Oregon.

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

-46%

vs. Regional Average

Compared to 8 nearby locations in Oregon

Nearby Natural Areas

Oregon

Importance: 0.74

100 species

-47% vs. current

Portland

Importance: 0.65

100 species

-47% vs. current

Eugene

Importance: 0.54

100 species

-47% vs. current

Salem

Importance: 0.51

100 species

-47% vs. current

Corvallis

Importance: 0.48

100 species

-47% vs. current

Bend

Importance: 0.47

100 species

-47% vs. current

Medford

Importance: 0.47

100 species

-47% vs. current

Astoria

Importance: 0.46

91 species

-42% 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

#96

Regional Rank

Out of 427 locations

Species Distribution

Very Common11 species

Common16 species

Occasional16 species

Rare10 species

Regional Context

Regional Ranking

#96 of 427 locations

78th percentile for diversity

vs. Oregon

-47% species diversity

Most Common Species

Showing 20 most frequently observed species out of 53 total documented species.

Ariolimax columbianus

Pacific banana slug

Very Common3 obs.

Vaccinium parvifolium

red-huckleberry

Very Common3 obs.

Acer macrophyllum

Big-Leaf Maple

Very Common2 obs.

Salticus scenicus

Zebra Jumper

Very Common2 obs.

Monadenia fidelis

Very Common2 obs.

Leptoglossus occidentalis

Western Conifer-Seed Bug

Common2 obs.

Geum urbanum

wood avens

Common2 obs.

Fomitopsis mounceae

Common2 obs.

Xylaria hypoxylon

Candle-Snuff Fungus

Common2 obs.

Allogona townsendiana

Common1 obs.

Arion ater

European black slug

Common1 obs.

Arion intermedius

Hedgehog slug

Occasional1 obs.

Ganoderma applanatum

Artist's Bracket

Occasional1 obs.

Colaptes auratus

common flicker

Occasional1 obs.

Pleurotus ostreatus

Oyster Mushroom

Occasional1 obs.

Thryomanes bewickii

Bewick'S Wren (Spilurus Group)

Occasional1 obs.

Melospiza melodia

Song Sparrow

Occasional1 obs.

Phaeolus schweinitzii

Dyer's Mazegill

Rare1 obs.

Prophysaon andersonii

Reticulate taildropper

Rare1 obs.

Tylobolus uncigerus

Rare1 obs.

Want the Complete Field Guide?

Get all 53 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.