San Diego

Ecosystem Overview

The San Diego ecosystem supports 100 documented wildlife species across 91 taxonomic genera. Located in San Diego 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 #8 for species diversity among 89 San Diego County County natural areas, placing it in the 91th 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 89 locations

Species Distribution

Very Common21 species

Common30 species

Occasional30 species

Rare19 species

Regional Context

Regional Ranking

#8 of 89 locations

91th percentile for diversity

vs. San Diego 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.

Sceloporus occidentalis

Pacific blue-bellied lizard

Very Common611 obs.

Eriogonum fasciculatum

wild buckwheat

Very Common581 obs.

Larus occidentalis

Western Gull

Very Common567 obs.

Apis mellifera

Western Honey Bee

Very Common534 obs.

Rhus integrifolia

lemonadeberry

Very Common534 obs.

Melozone crissalis

California Towhee

Common498 obs.

No image

Oxyjulis californica

Common492 obs.

Haemorhous mexicanus

House Finch

Common476 obs.

Calypte anna

Anna's Hummingbird

Common465 obs.

Otospermophilus beecheyi

California ground squirrel

Common463 obs.

Encelia californica

Common412 obs.

Sayornis nigricans

black phoebe

Occasional379 obs.

Melospiza melodia

Song Sparrow

Occasional379 obs.

Salvia mellifera

black sage

Occasional361 obs.

Egretta thula

Snowy Egret

Occasional358 obs.

No image

Semicossyphus pulcher

California Sheephead

Occasional352 obs.

Malosma laurina

Occasional348 obs.

Bombus vosnesenskii

Vosnesensky bumble bee

Rare340 obs.

Paralabrax clathratus

Sea bass

Rare325 obs.

Pelecanus occidentalis

Brown Pelican (Southern)

Rare320 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 Diego. Perfect for outdoor adventures, education, and nature exploration.

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Regional Comparison

Regional Ranking

100

Species Count

vs. Regional Average

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

Nearby Natural Areas

San Diego County

Importance: 0.55

100 species

0% vs. current

Carlsbad

Importance: 0.47

100 species

0% vs. current

Oceanside

Importance: 0.46

100 species

0% vs. current

Escondido

Importance: 0.45

100 species

0% vs. current

Chula Vista

Importance: 0.45

100 species

0% vs. current

San Marcos

Importance: 0.44

100 species

0% vs. current

Coronado

Importance: 0.42

100 species

0% vs. current

Poway

Importance: 0.41

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 San Diego 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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Regional Comparison

Regional Ranking

100

Species Count

vs. Regional Average

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

Nearby Natural Areas

San Diego County

Importance: 0.55

100 species

0% vs. current

Carlsbad

Importance: 0.47

100 species

0% vs. current

Oceanside

Importance: 0.46

100 species

0% vs. current

Escondido

Importance: 0.45

100 species

0% vs. current

Chula Vista

Importance: 0.45

100 species

0% vs. current

San Marcos

Importance: 0.44

100 species

0% vs. current

Coronado

Importance: 0.42

100 species

0% vs. current

Poway

Importance: 0.41

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

Regional Rank

Out of 89 locations

Species Distribution

Very Common21 species

Common30 species

Occasional30 species

Rare19 species

Regional Context

Regional Ranking

#8 of 89 locations

91th percentile for diversity

vs. San Diego County

0% species diversity

Most Common Species

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

Sceloporus occidentalis

Pacific blue-bellied lizard

Very Common611 obs.

Eriogonum fasciculatum

wild buckwheat

Very Common581 obs.

Larus occidentalis

Western Gull

Very Common567 obs.

Apis mellifera

Western Honey Bee

Very Common534 obs.

Rhus integrifolia

lemonadeberry

Very Common534 obs.

Melozone crissalis

California Towhee

Common498 obs.

No image

Oxyjulis californica

Common492 obs.

Haemorhous mexicanus

House Finch

Common476 obs.

Calypte anna

Anna's Hummingbird

Common465 obs.

Otospermophilus beecheyi

California ground squirrel

Common463 obs.

Encelia californica

Common412 obs.

Sayornis nigricans

black phoebe

Occasional379 obs.

Melospiza melodia

Song Sparrow

Occasional379 obs.

Salvia mellifera

black sage

Occasional361 obs.

Egretta thula

Snowy Egret

Occasional358 obs.

No image

Semicossyphus pulcher

California Sheephead

Occasional352 obs.

Malosma laurina

Occasional348 obs.

Bombus vosnesenskii

Vosnesensky bumble bee

Rare340 obs.

Paralabrax clathratus

Sea bass

Rare325 obs.

Pelecanus occidentalis

Brown Pelican (Southern)

Rare320 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.