Angel Island

Ecosystem Overview

The Angel Island ecosystem supports 100 documented wildlife species across 95 taxonomic genera. Located in California, this area provides critical habitat for regional wildlife. 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 #215 for species diversity among 1359 California natural areas, placing it in the 84th 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

#215

Regional Rank

Out of 1359 locations

Species Distribution

Very Common21 species

Common30 species

Occasional30 species

Rare19 species

Regional Context

Regional Ranking

#215 of 1359 locations

84th percentile for diversity

vs. California

0% species diversity

Ecosystem Overview

‌
‌
‌
‌

Biodiversity Highlights

‌

Species Distribution

Very Common‌

Common‌

Occasional‌

Rare‌

Regional Context

Regional Ranking

‌

Most Common Species

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

Diplacus aurantiacus

orange bush monkey-flower

Very Common12 obs.

Echium candicans

Pride of madeira

Very Common11 obs.

Triteleia laxa

Ithuriel's-spear

Very Common11 obs.

Trifolium tomentosum

woolly clover

Very Common7 obs.

Baccharis pilularis

coyotebrush

Very Common7 obs.

Ageratina adenophora

Sticky snakeroot

Common7 obs.

Lupinus arboreus

Yellow bush lupine

Common7 obs.

Equisetum telmateia

Great Horsetail

Common6 obs.

Sisyrinchium bellum

Common6 obs.

Calystegia purpurata

Common6 obs.

Eschscholzia californica

California poppy

Common6 obs.

Acacia melanoxylon

Blackwood

Occasional5 obs.

Quercus agrifolia

Coast Live Oak

Occasional5 obs.

Branta canadensis

Canada goose

Occasional5 obs.

Gnorimoschema baccharisella

Occasional5 obs.

Clarkia rubicunda

Occasional5 obs.

Trifolium hirtum

Rose Clover

Occasional5 obs.

Genista monspessulana

French broom

Rare5 obs.

Artemisia californica

California sagebrush

Rare4 obs.

Sequoia sempervirens

coast redwood

Rare4 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.

Most Common Species

‌

‌
‌

‌

‌
‌

‌

‌
‌

‌

‌
‌

‌

‌
‌

‌

‌
‌

‌

‌
‌

‌

‌
‌

‌

‌
‌

‌

‌
‌

‌

‌
‌

‌

‌
‌

‌

‌
‌

‌

‌
‌

‌

‌
‌

‌

‌
‌

‌

‌
‌

‌

‌
‌

‌

‌
‌

‌

‌
‌

Want the Complete Field Guide?

‌
‌

‌

Get Your Personalized Field Guide

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

$6.99

Get Your Personalized Field Guide

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

Email Address (for delivery)

Your field guide will be delivered to this email address. Please double-check for accuracy.

$6.99

Regional Comparison

Regional Ranking

100

Species Count

vs. Regional Average

Compared to 8 nearby locations in California

Nearby Natural Areas

California

Importance: 0.84

100 species

0% vs. current

San Francisco

Importance: 0.69

100 species

0% vs. current

San Diego

Importance: 0.63

100 species

0% vs. current

Oakland

Importance: 0.61

100 species

0% vs. current

Fresno

Importance: 0.59

100 species

0% vs. current

Anaheim

Importance: 0.59

100 species

0% vs. current

San José

Importance: 0.59

100 species

0% vs. current

Berkeley

Importance: 0.59

100 species

0% 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 California.

Regional Comparison

‌

Regional Ranking

‌

Species Count

‌

vs. Regional Average

‌

Nearby Natural Areas

‌
‌

‌

‌
‌

‌

‌
‌

‌

‌
‌

‌

‌
‌

‌

‌
‌

‌

‌
‌

‌

‌
‌

‌

About This Comparison

‌
‌
‌

Regional Comparison

Regional Ranking

100

Species Count

vs. Regional Average

Compared to 8 nearby locations in California

Nearby Natural Areas

California

Importance: 0.84

100 species

0% vs. current

San Francisco

Importance: 0.69

100 species

0% vs. current

San Diego

Importance: 0.63

100 species

0% vs. current

Oakland

Importance: 0.61

100 species

0% vs. current

Fresno

Importance: 0.59

100 species

0% vs. current

Anaheim

Importance: 0.59

100 species

0% vs. current

San José

Importance: 0.59

100 species

0% vs. current

Berkeley

Importance: 0.59

100 species

0% 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

#215

Regional Rank

Out of 1359 locations

Species Distribution

Very Common21 species

Common30 species

Occasional30 species

Rare19 species

Regional Context

Regional Ranking

#215 of 1359 locations

84th percentile for diversity

vs. California

0% species diversity

Most Common Species

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

Diplacus aurantiacus

orange bush monkey-flower

Very Common12 obs.

Echium candicans

Pride of madeira

Very Common11 obs.

Triteleia laxa

Ithuriel's-spear

Very Common11 obs.

Trifolium tomentosum

woolly clover

Very Common7 obs.

Baccharis pilularis

coyotebrush

Very Common7 obs.

Ageratina adenophora

Sticky snakeroot

Common7 obs.

Lupinus arboreus

Yellow bush lupine

Common7 obs.

Equisetum telmateia

Great Horsetail

Common6 obs.

Sisyrinchium bellum

Common6 obs.

Calystegia purpurata

Common6 obs.

Eschscholzia californica

California poppy

Common6 obs.

Acacia melanoxylon

Blackwood

Occasional5 obs.

Quercus agrifolia

Coast Live Oak

Occasional5 obs.

Branta canadensis

Canada goose

Occasional5 obs.

Gnorimoschema baccharisella

Occasional5 obs.

Clarkia rubicunda

Occasional5 obs.

Trifolium hirtum

Rose Clover

Occasional5 obs.

Genista monspessulana

French broom

Rare5 obs.

Artemisia californica

California sagebrush

Rare4 obs.

Sequoia sempervirens

coast redwood

Rare4 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.