Sandy River

Ecosystem Overview

The Sandy River ecosystem supports 16 documented wildlife species across 16 taxonomic genera. Located in Multnomah County, Oregon, this area provides critical habitat with diverse natural communities. The location hosts 4 frequently observed species and 3 occasionally documented species, creating a balanced ecosystem with both resident and visiting wildlife. While Multnomah County nearby has 84% more documented species, Sandy River offers unique wildlife observation opportunities. This location ranks #14 for species diversity among 21 Multnomah County County natural areas, placing it in the 33th 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

#14

Regional Rank

Out of 21 locations

Species Distribution

Very Common4 species

Common5 species

Occasional4 species

Rare3 species

Regional Context

Regional Ranking

#14 of 21 locations

33th percentile for diversity

vs. Multnomah County

-84% 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 16 total documented species.

Cicindela oregona

Very Common1 obs.

Disonycha latiovittata

Very Common1 obs.

Sympetrum illotum

Cardinal Meadowhawk

Very Common1 obs.

Misumena vatia

Goldenrod Crab Spider

Very Common1 obs.

Haliaeetus leucocephalus

Bald Eagle

Very Common1 obs.

Actitis macularius

spotted sandpiper

Common1 obs.

Maianthemum dilatatum

deerberry

Common1 obs.

Holodiscus discolor

hillside oceanspray

Common1 obs.

Physocarpus capitatus

Pacific ninebark

Common1 obs.

Hesperis matronalis

Dames rocket

Common1 obs.

Teesdalia nudicaulis

Barestem teesdalia

Common1 obs.

Petasites frigidus

Arctic sweet-coltsfoot

Occasional1 obs.

Hypericum perforatum

Perforate St John'S-Wort

Occasional1 obs.

Aquarius remigis

Occasional1 obs.

Silene latifolia

Bladder campion

Occasional1 obs.

Rubus parviflorus

Occasional1 obs.

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Most Common Species

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Get Your Personalized Field Guide

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

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Regional Comparison

Regional Ranking

Species Count

-47%

vs. Regional Average

Compared to 8 nearby locations in Multnomah County County, Oregon

Nearby Natural Areas

Multnomah County

Importance: 0.45

100 species

-84% vs. current

Gresham

Importance: 0.43

62 species

-74% vs. current

Oaks Bottom Lake

Importance: 0.35

20 species

-20% vs. current

Crystal Springs Lake

Importance: 0.35

18 species

-11% vs. current

Smith Lake

Importance: 0.35

15 species

+7% vs. current

Bybee Lake

Importance: 0.35

15 species

+7% vs. current

Force Lake

Importance: 0.35

5 species

+220% vs. current

Mill Pond

Importance: 0.35

3 species

+433% 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 Multnomah 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

-47%

vs. Regional Average

Compared to 8 nearby locations in Multnomah County County, Oregon

Nearby Natural Areas

Multnomah County

Importance: 0.45

100 species

-84% vs. current

Gresham

Importance: 0.43

62 species

-74% vs. current

Oaks Bottom Lake

Importance: 0.35

20 species

-20% vs. current

Crystal Springs Lake

Importance: 0.35

18 species

-11% vs. current

Smith Lake

Importance: 0.35

15 species

+7% vs. current

Bybee Lake

Importance: 0.35

15 species

+7% vs. current

Force Lake

Importance: 0.35

5 species

+220% vs. current

Mill Pond

Importance: 0.35

3 species

+433% 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

#14

Regional Rank

Out of 21 locations

Species Distribution

Very Common4 species

Common5 species

Occasional4 species

Rare3 species

Regional Context

Regional Ranking

#14 of 21 locations

33th percentile for diversity

vs. Multnomah County

-84% species diversity

Most Common Species

Showing 20 most frequently observed species out of 16 total documented species.

Cicindela oregona

Very Common1 obs.

Disonycha latiovittata

Very Common1 obs.

Sympetrum illotum

Cardinal Meadowhawk

Very Common1 obs.

Misumena vatia

Goldenrod Crab Spider

Very Common1 obs.

Haliaeetus leucocephalus

Bald Eagle

Very Common1 obs.

Actitis macularius

spotted sandpiper

Common1 obs.

Maianthemum dilatatum

deerberry

Common1 obs.

Holodiscus discolor

hillside oceanspray

Common1 obs.

Physocarpus capitatus

Pacific ninebark

Common1 obs.

Hesperis matronalis

Dames rocket

Common1 obs.

Teesdalia nudicaulis

Barestem teesdalia

Common1 obs.

Petasites frigidus

Arctic sweet-coltsfoot

Occasional1 obs.

Hypericum perforatum

Perforate St John'S-Wort

Occasional1 obs.

Aquarius remigis

Occasional1 obs.

Silene latifolia

Bladder campion

Occasional1 obs.

Rubus parviflorus

Occasional1 obs.

Want the Complete Field Guide?

Get all 16 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.