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Lake Anza

Ecosystem Overview

The Lake Anza ecosystem supports 34 documented wildlife species across 33 taxonomic genera. Located in contra costa county, california, this area provides critical habitat with diverse natural communities. The location hosts 7 frequently observed species and 6 occasionally documented species, creating a balanced ecosystem with both resident and visiting wildlife. While Contra Costa County nearby has 66% more documented species, Lake Anza offers unique wildlife observation opportunities. This location ranks #21 for species diversity among 45 contra costa county County natural areas, placing it in the 53th percentile for biodiversity.

Biodiversity Highlights

34
Total Species
Documented wildlife species
33
Genus Diversity
Taxonomic genera represented
18
Common Species
Frequently observed species
16
Rare Species
Occasionally documented species
#21
Regional Rank
Out of 45 locations

Species Distribution

Very Common7 species
Common11 species
Occasional10 species
Rare6 species

Regional Context

Regional Ranking
#21 of 45 locations
53th percentile for diversity
vs. Contra Costa County
-66% species diversity

Most Common Species

Showing 20 most frequently observed species out of 34 total documented species.

Anas platyrhynchos

Anas platyrhynchos

mallard

Very Common11 obs.
Bucephala albeola

Bucephala albeola

Bufflehead

Very Common7 obs.
Sympetrum illotum

Sympetrum illotum

Cardinal Meadowhawk

Very Common4 obs.
Rhionaeschna multicolor

Rhionaeschna multicolor

Blue-eyed Darner

Very Common3 obs.
Libellula saturata

Libellula saturata

Flame Skimmer

Very Common3 obs.
Lontra canadensis

Lontra canadensis

River Otter

Common3 obs.
Plathemis lydia

Plathemis lydia

Common Whitetail

Common3 obs.
Sceloporus occidentalis

Sceloporus occidentalis

Pacific blue-bellied lizard

Common2 obs.
Nycticorax nycticorax

Nycticorax nycticorax

night heron, black-crowned night heron

Common2 obs.
Sayornis nigricans

Sayornis nigricans

black phoebe

Common2 obs.
Melospiza melodia

Melospiza melodia

Song Sparrow

Common2 obs.
Aquarius remigis

Aquarius remigis

Occasional2 obs.
Papilio rutulus

Papilio rutulus

Western Tiger Swallowtail

Occasional1 obs.
Lithobates catesbeianus

Lithobates catesbeianus

Common Bullfrog

Occasional1 obs.
Trachemys scripta

Trachemys scripta

slider turtle, red-eared terrapin, red-eared slider

Occasional1 obs.
Megaceryle alcyon

Megaceryle alcyon

Belted Kingfisher

Occasional1 obs.
Buteo jamaicensis

Buteo jamaicensis

Red-tailed Hawk

Occasional1 obs.
Tachycineta bicolor

Tachycineta bicolor

Tree/Violet-Green Swallow

Rare1 obs.
Catharus guttatus

Catharus guttatus

Hermit Thrush

Rare1 obs.
Aythya collaris

Aythya collaris

Ring-necked Duck

Rare1 obs.

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No comparable locations found in this region.

Nearby Wildlife Areas in Contra Costa County

Discover 8 other wildlife-rich locations near Lake Anza. Each offers unique biodiversity and wildlife viewing opportunities.

Regional Wildlife Network

These nearby locations complement Lake Anzawithin Contra Costa County's wildlife network. Species counts reflect documented observations and help identify the most biodiverse areas for your nature explorations.

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