The Dalles

Ecosystem Overview

The The Dalles ecosystem supports 100 documented wildlife species across 94 taxonomic genera. Located in Wasco County, Oregon, 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 7 Wasco County County natural areas, placing it in the 71th 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 7 locations

Species Distribution

Very Common21 species

Common30 species

Occasional30 species

Rare19 species

Regional Context

Regional Ranking

#2 of 7 locations

71th percentile for diversity

vs. Wasco County

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.

Centranthus ruber

Red Valerian

Very Common9 obs.

Ailanthus altissima

Tree of heaven

Very Common7 obs.

Eschscholzia californica

California poppy

Very Common7 obs.

Anthriscus caucalis

Bur Chervil

Very Common5 obs.

Purshia tridentata

bitterbrush

Very Common4 obs.

Bromus tectorum

Cheatgrass

Common4 obs.

Draba verna

Common Whitlowgrass

Common4 obs.

Boisea rubrolineata

Common4 obs.

Claytonia perfoliata

Common4 obs.

Erodium cicutarium

Common Stork'S-Bill

Common4 obs.

Ericameria nauseosa

rubber rabbitbrush

Common3 obs.

Thelypodium laciniatum

feathery thelypodium

Occasional3 obs.

Cardamine hirsuta

hairy bitter-cress

Occasional3 obs.

Passer domesticus

House Sparrow

Occasional3 obs.

Aphelocoma californica

California/Woodhouse's Scrub-Jay

Occasional3 obs.

Calypte anna

Anna's Hummingbird

Occasional2 obs.

Sceloporus occidentalis

Pacific blue-bellied lizard

Occasional2 obs.

Herpyllus propinquus

Rare2 obs.

Egira crucialis

Rare2 obs.

Apis mellifera

Western Honey Bee

Rare2 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 The Dalles. Perfect for outdoor adventures, education, and nature exploration.

$6.99

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Regional Comparison

Regional Ranking

100

Species Count

+355%

vs. Regional Average

Compared to 6 nearby locations in Wasco County County, Oregon

Nearby Natural Areas

Wasco County

Importance: 0.40

100 species

0% vs. current

Upper Twin Lake

Importance: 0.35

2 species

+4900% vs. current

Frog Lake

Importance: 0.35

2 species

+4900% vs. current

Shaniko

Importance: 0.30

2 species

+4900% vs. current

Mosier

Importance: 0.28

15 species

+567% vs. current

Clear Lake

Importance: 0.20

13 species

+669% 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 Wasco 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

100

Species Count

+355%

vs. Regional Average

Compared to 6 nearby locations in Wasco County County, Oregon

Nearby Natural Areas

Wasco County

Importance: 0.40

100 species

0% vs. current

Upper Twin Lake

Importance: 0.35

2 species

+4900% vs. current

Frog Lake

Importance: 0.35

2 species

+4900% vs. current

Shaniko

Importance: 0.30

2 species

+4900% vs. current

Mosier

Importance: 0.28

15 species

+567% vs. current

Clear Lake

Importance: 0.20

13 species

+669% 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 7 locations

Species Distribution

Very Common21 species

Common30 species

Occasional30 species

Rare19 species

Regional Context

Regional Ranking

#2 of 7 locations

71th percentile for diversity

vs. Wasco County

0% species diversity

Most Common Species

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

Centranthus ruber

Red Valerian

Very Common9 obs.

Ailanthus altissima

Tree of heaven

Very Common7 obs.

Eschscholzia californica

California poppy

Very Common7 obs.

Anthriscus caucalis

Bur Chervil

Very Common5 obs.

Purshia tridentata

bitterbrush

Very Common4 obs.

Bromus tectorum

Cheatgrass

Common4 obs.

Draba verna

Common Whitlowgrass

Common4 obs.

Boisea rubrolineata

Common4 obs.

Claytonia perfoliata

Common4 obs.

Erodium cicutarium

Common Stork'S-Bill

Common4 obs.

Ericameria nauseosa

rubber rabbitbrush

Common3 obs.

Thelypodium laciniatum

feathery thelypodium

Occasional3 obs.

Cardamine hirsuta

hairy bitter-cress

Occasional3 obs.

Passer domesticus

House Sparrow

Occasional3 obs.

Aphelocoma californica

California/Woodhouse's Scrub-Jay

Occasional3 obs.

Calypte anna

Anna's Hummingbird

Occasional2 obs.

Sceloporus occidentalis

Pacific blue-bellied lizard

Occasional2 obs.

Herpyllus propinquus

Rare2 obs.

Egira crucialis

Rare2 obs.

Apis mellifera

Western Honey Bee

Rare2 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.