Placer County

Ecosystem Overview

The Placer County ecosystem supports 100 documented wildlife species across 85 taxonomic genera. Located in Placer County, California, 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 #3 for species diversity among 14 Placer County County natural areas, placing it in the 79th 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 14 locations

Species Distribution

Very Common21 species

Common30 species

Occasional30 species

Rare19 species

Regional Context

Regional Ranking

#3 of 14 locations

79th percentile for diversity

vs. Rocklin

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.

Heteromeles arbutifolia

Toyon

Very Common40 obs.

Sceloporus occidentalis

Pacific blue-bellied lizard

Very Common40 obs.

Calochortus albus

fairy-lantern

Very Common39 obs.

Quercus kelloggii

California black oak

Very Common35 obs.

Sarcodes sanguinea

Very Common35 obs.

Aesculus californica

California buckeye

Common35 obs.

Toxicodendron diversilobum

poison oak

Common32 obs.

Omphalotus olivascens

Common29 obs.

Spilosoma vagans

Common28 obs.

Quercus wislizeni

Interior Live Oak

Common28 obs.

Calochortus leichtlinii

Common28 obs.

Aquilegia formosa

western columbine

Occasional27 obs.

Pterospora andromedea

Pinedrops

Occasional27 obs.

Quercus morehus

Occasional25 obs.

Asclepias cordifolia

purple milkweed

Occasional24 obs.

Calyptridium monospermum

Occasional23 obs.

Meleagris gallopavo

Turkey

Occasional23 obs.

Wyethia mollis

Rare23 obs.

Pseudacris regilla

Pacific chorus frog

Rare23 obs.

Euphagus cyanocephalus

Brewer's blackbird

Rare22 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 Placer County. Perfect for outdoor adventures, education, and nature exploration.

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Regional Comparison

Regional Ranking

100

Species Count

+355%

vs. Regional Average

Compared to 8 nearby locations in Placer County County, California

Nearby Natural Areas

Rocklin

Importance: 0.40

100 species

0% vs. current

Lincoln

Importance: 0.35

44 species

+127% vs. current

Auburn

Importance: 0.35

11 species

+809% vs. current

Serene Lakes

Importance: 0.35

10 species

+900% vs. current

Colfax

Importance: 0.35

5 species

+1900% vs. current

Loch Leven Lakes

Importance: 0.35

3 species

+3233% vs. current

Avery's Pond

Importance: 0.35

2 species

+4900% vs. current

Long Lake

Importance: 0.35

2 species

+4900% 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 Placer 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 8 nearby locations in Placer County County, California

Nearby Natural Areas

Rocklin

Importance: 0.40

100 species

0% vs. current

Lincoln

Importance: 0.35

44 species

+127% vs. current

Auburn

Importance: 0.35

11 species

+809% vs. current

Serene Lakes

Importance: 0.35

10 species

+900% vs. current

Colfax

Importance: 0.35

5 species

+1900% vs. current

Loch Leven Lakes

Importance: 0.35

3 species

+3233% vs. current

Avery's Pond

Importance: 0.35

2 species

+4900% vs. current

Long Lake

Importance: 0.35

2 species

+4900% 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 14 locations

Species Distribution

Very Common21 species

Common30 species

Occasional30 species

Rare19 species

Regional Context

Regional Ranking

#3 of 14 locations

79th percentile for diversity

vs. Rocklin

0% species diversity

Most Common Species

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

Heteromeles arbutifolia

Toyon

Very Common40 obs.

Sceloporus occidentalis

Pacific blue-bellied lizard

Very Common40 obs.

Calochortus albus

fairy-lantern

Very Common39 obs.

Quercus kelloggii

California black oak

Very Common35 obs.

Sarcodes sanguinea

Very Common35 obs.

Aesculus californica

California buckeye

Common35 obs.

Toxicodendron diversilobum

poison oak

Common32 obs.

Omphalotus olivascens

Common29 obs.

Spilosoma vagans

Common28 obs.

Quercus wislizeni

Interior Live Oak

Common28 obs.

Calochortus leichtlinii

Common28 obs.

Aquilegia formosa

western columbine

Occasional27 obs.

Pterospora andromedea

Pinedrops

Occasional27 obs.

Quercus morehus

Occasional25 obs.

Asclepias cordifolia

purple milkweed

Occasional24 obs.

Calyptridium monospermum

Occasional23 obs.

Meleagris gallopavo

Turkey

Occasional23 obs.

Wyethia mollis

Rare23 obs.

Pseudacris regilla

Pacific chorus frog

Rare23 obs.

Euphagus cyanocephalus

Brewer's blackbird

Rare22 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.