Oceanside

Ecosystem Overview

The Oceanside ecosystem supports 100 documented wildlife species across 93 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 #2 for species diversity among 89 San Diego County County natural areas, placing it in the 98th 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

#2 of 89 locations

98th percentile for diversity

vs. San Diego

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.

Pelecanus occidentalis

Brown Pelican (Southern)

Very Common9 obs.

Thalasseus maximus

Royal Tern

Very Common7 obs.

Datura wrightii

sacred thorn-apple

Very Common6 obs.

Calidris alba

sanderling

Very Common5 obs.

Calypte anna

Anna's Hummingbird

Very Common5 obs.

Sayornis nigricans

black phoebe

Common5 obs.

Spinus psaltria

lesser goldfinch

Common5 obs.

Tyrannus vociferans

Cassin's Kingbird

Common5 obs.

Danaus plexippus

monarch

Common5 obs.

Larus occidentalis

Western Gull

Common5 obs.

Buteo lineatus

Red-Shouldered/Broad-Winged Hawk

Common5 obs.

Buteo jamaicensis

Red-tailed Hawk

Occasional4 obs.

Tursiops truncatus

bottle-nosed dophin, common bottle-nosed dolphin

Occasional4 obs.

Egretta thula

Snowy Egret

Occasional4 obs.

Encelia californica

Occasional4 obs.

Ambrosia psilostachya

Western Ragweed

Occasional4 obs.

Conium maculatum

hemlock

Occasional4 obs.

Oxalis pes-caprae

Bermuda buttercup

Rare4 obs.

Eriogonum fasciculatum

wild buckwheat

Rare4 obs.

Zalophus californianus

California Sealion

Rare4 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 Oceanside. Perfect for outdoor adventures, education, and nature exploration.

$6.99

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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

Importance: 0.63

100 species

0% vs. current

San Diego County

Importance: 0.55

100 species

0% vs. current

Carlsbad

Importance: 0.47

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

Importance: 0.63

100 species

0% vs. current

San Diego County

Importance: 0.55

100 species

0% vs. current

Carlsbad

Importance: 0.47

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

#2 of 89 locations

98th percentile for diversity

vs. San Diego

0% species diversity

Most Common Species

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

Pelecanus occidentalis

Brown Pelican (Southern)

Very Common9 obs.

Thalasseus maximus

Royal Tern

Very Common7 obs.

Datura wrightii

sacred thorn-apple

Very Common6 obs.

Calidris alba

sanderling

Very Common5 obs.

Calypte anna

Anna's Hummingbird

Very Common5 obs.

Sayornis nigricans

black phoebe

Common5 obs.

Spinus psaltria

lesser goldfinch

Common5 obs.

Tyrannus vociferans

Cassin's Kingbird

Common5 obs.

Danaus plexippus

monarch

Common5 obs.

Larus occidentalis

Western Gull

Common5 obs.

Buteo lineatus

Red-Shouldered/Broad-Winged Hawk

Common5 obs.

Buteo jamaicensis

Red-tailed Hawk

Occasional4 obs.

Tursiops truncatus

bottle-nosed dophin, common bottle-nosed dolphin

Occasional4 obs.

Egretta thula

Snowy Egret

Occasional4 obs.

Encelia californica

Occasional4 obs.

Ambrosia psilostachya

Western Ragweed

Occasional4 obs.

Conium maculatum

hemlock

Occasional4 obs.

Oxalis pes-caprae

Bermuda buttercup

Rare4 obs.

Eriogonum fasciculatum

wild buckwheat

Rare4 obs.

Zalophus californianus

California Sealion

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.