Simi Valley

Ecosystem Overview

The Simi Valley ecosystem supports 100 documented wildlife species across 85 taxonomic genera. Located in Ventura 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 21 Ventura County County natural areas, placing it in the 81th 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 21 locations

Species Distribution

Very Common21 species

Common30 species

Occasional30 species

Rare19 species

Regional Context

Regional Ranking

#4 of 21 locations

81th percentile for diversity

vs. Oxnard

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.

Salvia leucophylla

purple sage

Very Common14 obs.

Lophodytes cucullatus

Hooded Merganser

Very Common11 obs.

Malacothamnus fasciculatus

chaparral-mallow

Very Common10 obs.

Quercus berberidifolia

California Scrub Oak

Very Common10 obs.

Quercus lobata

Valley Oak

Very Common10 obs.

Buteo jamaicensis

Red-tailed Hawk

Common9 obs.

Spatula cyanoptera

Cinnamon Teal

Common9 obs.

Sayornis saya

Say's phoebe

Common9 obs.

Pellaea andromedifolia

Common9 obs.

Branta canadensis

Canada goose

Common9 obs.

Zonotrichia leucophrys

white-crowned sparrow

Common9 obs.

Plegadis chihi

White-faced Ibis

Occasional9 obs.

Phacelia ramosissima

branched phacelia

Occasional9 obs.

Calochortus catalinae

Catalina mariposa-lily

Occasional8 obs.

Diplacus rutilus

Occasional8 obs.

Haemorhous mexicanus

House Finch

Occasional8 obs.

Asclepias fascicularis

Mexican milkweed

Occasional8 obs.

Eriophyllum confertiflorum

yellow-yarrow

Rare8 obs.

Quercus agrifolia

Coast Live Oak

Rare8 obs.

Mareca americana

American Wigeon

Rare8 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 Simi Valley. Perfect for outdoor adventures, education, and nature exploration.

$6.99

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Regional Comparison

Regional Ranking

100

Species Count

+25%

vs. Regional Average

Compared to 8 nearby locations in Ventura County County, California

Nearby Natural Areas

Oxnard

Importance: 0.50

100 species

0% vs. current

Ventura County

Importance: 0.50

100 species

0% vs. current

Ojai

Importance: 0.42

79 species

+27% vs. current

Camarillo

Importance: 0.41

100 species

0% vs. current

Moorpark

Importance: 0.37

80 species

+25% vs. current

Santa Paula

Importance: 0.36

53 species

+89% vs. current

Port Hueneme

Importance: 0.35

27 species

+270% vs. current

Thousand Oaks

Importance: 0.35

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 Ventura 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

+25%

vs. Regional Average

Compared to 8 nearby locations in Ventura County County, California

Nearby Natural Areas

Oxnard

Importance: 0.50

100 species

0% vs. current

Ventura County

Importance: 0.50

100 species

0% vs. current

Ojai

Importance: 0.42

79 species

+27% vs. current

Camarillo

Importance: 0.41

100 species

0% vs. current

Moorpark

Importance: 0.37

80 species

+25% vs. current

Santa Paula

Importance: 0.36

53 species

+89% vs. current

Port Hueneme

Importance: 0.35

27 species

+270% vs. current

Thousand Oaks

Importance: 0.35

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 21 locations

Species Distribution

Very Common21 species

Common30 species

Occasional30 species

Rare19 species

Regional Context

Regional Ranking

#4 of 21 locations

81th percentile for diversity

vs. Oxnard

0% species diversity

Most Common Species

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

Salvia leucophylla

purple sage

Very Common14 obs.

Lophodytes cucullatus

Hooded Merganser

Very Common11 obs.

Malacothamnus fasciculatus

chaparral-mallow

Very Common10 obs.

Quercus berberidifolia

California Scrub Oak

Very Common10 obs.

Quercus lobata

Valley Oak

Very Common10 obs.

Buteo jamaicensis

Red-tailed Hawk

Common9 obs.

Spatula cyanoptera

Cinnamon Teal

Common9 obs.

Sayornis saya

Say's phoebe

Common9 obs.

Pellaea andromedifolia

Common9 obs.

Branta canadensis

Canada goose

Common9 obs.

Zonotrichia leucophrys

white-crowned sparrow

Common9 obs.

Plegadis chihi

White-faced Ibis

Occasional9 obs.

Phacelia ramosissima

branched phacelia

Occasional9 obs.

Calochortus catalinae

Catalina mariposa-lily

Occasional8 obs.

Diplacus rutilus

Occasional8 obs.

Haemorhous mexicanus

House Finch

Occasional8 obs.

Asclepias fascicularis

Mexican milkweed

Occasional8 obs.

Eriophyllum confertiflorum

yellow-yarrow

Rare8 obs.

Quercus agrifolia

Coast Live Oak

Rare8 obs.

Mareca americana

American Wigeon

Rare8 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.