San Carlos

Ecosystem Overview

The San Carlos ecosystem supports 100 documented wildlife species across 93 taxonomic genera. Located in San Mateo 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 #4 for species diversity among 28 San Mateo County County natural areas, placing it in the 86th 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 28 locations

Species Distribution

Very Common21 species

Common30 species

Occasional30 species

Rare19 species

Regional Context

Regional Ranking

#4 of 28 locations

86th percentile for diversity

vs. San Mateo 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.

Odocoileus hemionus

mule deer

Very Common31 obs.

Junco hyemalis

dark-eyed junco

Very Common24 obs.

Quercus agrifolia

Coast Live Oak

Very Common19 obs.

Baccharis pilularis

coyotebrush

Very Common18 obs.

Heteromeles arbutifolia

Toyon

Very Common18 obs.

Aesculus californica

California buckeye

Common17 obs.

Artemisia californica

California sagebrush

Common17 obs.

Genista monspessulana

French broom

Common17 obs.

Cornu aspersum

Brown garden snail

Common15 obs.

Chlorogalum pomeridianum

soap-plant

Common14 obs.

Marah fabacea

valley manroot

Common13 obs.

Claytonia perfoliata

Occasional13 obs.

Spinus psaltria

lesser goldfinch

Occasional13 obs.

Poecile rufescens

Chestnut-backed Chickadee

Occasional12 obs.

Prunus ilicifolia

Hollyleaf Cherry

Occasional12 obs.

Calypte anna

Anna's Hummingbird

Occasional12 obs.

Adiantum jordanii

Occasional12 obs.

Sciurus carolinensis

Grey squirrel

Rare11 obs.

Oxalis pes-caprae

Bermuda buttercup

Rare11 obs.

Leratiomyces percevalii

Rare11 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 San Carlos. Perfect for outdoor adventures, education, and nature exploration.

$6.99

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Regional Comparison

Regional Ranking

100

Species Count

+4%

vs. Regional Average

Compared to 8 nearby locations in San Mateo County County, California

Nearby Natural Areas

San Mateo County

Importance: 0.50

100 species

0% vs. current

San Mateo

Importance: 0.49

100 species

0% vs. current

Redwood City

Importance: 0.49

100 species

0% vs. current

Menlo Park

Importance: 0.46

100 species

0% vs. current

Daly City

Importance: 0.44

100 species

0% vs. current

Foster City

Importance: 0.43

100 species

0% vs. current

South San Francisco

Importance: 0.43

100 species

0% vs. current

East Palo Alto

Importance: 0.41

71 species

+41% 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 San Mateo 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

+4%

vs. Regional Average

Compared to 8 nearby locations in San Mateo County County, California

Nearby Natural Areas

San Mateo County

Importance: 0.50

100 species

0% vs. current

San Mateo

Importance: 0.49

100 species

0% vs. current

Redwood City

Importance: 0.49

100 species

0% vs. current

Menlo Park

Importance: 0.46

100 species

0% vs. current

Daly City

Importance: 0.44

100 species

0% vs. current

Foster City

Importance: 0.43

100 species

0% vs. current

South San Francisco

Importance: 0.43

100 species

0% vs. current

East Palo Alto

Importance: 0.41

71 species

+41% 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 28 locations

Species Distribution

Very Common21 species

Common30 species

Occasional30 species

Rare19 species

Regional Context

Regional Ranking

#4 of 28 locations

86th percentile for diversity

vs. San Mateo County

0% species diversity

Most Common Species

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

Odocoileus hemionus

mule deer

Very Common31 obs.

Junco hyemalis

dark-eyed junco

Very Common24 obs.

Quercus agrifolia

Coast Live Oak

Very Common19 obs.

Baccharis pilularis

coyotebrush

Very Common18 obs.

Heteromeles arbutifolia

Toyon

Very Common18 obs.

Aesculus californica

California buckeye

Common17 obs.

Artemisia californica

California sagebrush

Common17 obs.

Genista monspessulana

French broom

Common17 obs.

Cornu aspersum

Brown garden snail

Common15 obs.

Chlorogalum pomeridianum

soap-plant

Common14 obs.

Marah fabacea

valley manroot

Common13 obs.

Claytonia perfoliata

Occasional13 obs.

Spinus psaltria

lesser goldfinch

Occasional13 obs.

Poecile rufescens

Chestnut-backed Chickadee

Occasional12 obs.

Prunus ilicifolia

Hollyleaf Cherry

Occasional12 obs.

Calypte anna

Anna's Hummingbird

Occasional12 obs.

Adiantum jordanii

Occasional12 obs.

Sciurus carolinensis

Grey squirrel

Rare11 obs.

Oxalis pes-caprae

Bermuda buttercup

Rare11 obs.

Leratiomyces percevalii

Rare11 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.