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Sweetwater Reservoir

Ecosystem Overview

The Sweetwater Reservoir ecosystem supports 32 documented wildlife species across 31 taxonomic genera. Located in san diego 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 San Diego nearby has 68% more documented species, Sweetwater Reservoir offers unique wildlife observation opportunities. This location ranks #32 for species diversity among 89 san diego county County natural areas, placing it in the 64th percentile for biodiversity.

Biodiversity Highlights

32
Total Species
Documented wildlife species
31
Genus Diversity
Taxonomic genera represented
17
Common Species
Frequently observed species
15
Rare Species
Occasionally documented species
#32
Regional Rank
Out of 89 locations

Species Distribution

Very Common7 species
Common10 species
Occasional9 species
Rare6 species

Regional Context

Regional Ranking
#32 of 89 locations
64th percentile for diversity
vs. San Diego
-68% species diversity

Most Common Species

Showing 20 most frequently observed species out of 32 total documented species.

Passerculus sandwichensis

Passerculus sandwichensis

Savannah Sparrow

Very Common2 obs.
Cicindela oregona

Cicindela oregona

Very Common1 obs.
Diabrotica undecimpunctata

Diabrotica undecimpunctata

Spotted Cucumber Beetle

Very Common1 obs.
Apis mellifera

Apis mellifera

Western Honey Bee

Very Common1 obs.
Fulica americana

Fulica americana

American Coot

Very Common1 obs.
Charadrius vociferus

Charadrius vociferus

Killdeer

Common1 obs.
Elanus leucurus

Elanus leucurus

White-tailed Kite

Common1 obs.
Haliaeetus leucocephalus

Haliaeetus leucocephalus

Bald Eagle

Common1 obs.
Tringa melanoleuca

Tringa melanoleuca

Greater Yellowlegs

Common1 obs.
Calidris minutilla

Calidris minutilla

least sandpiper

Common1 obs.
Aechmophorus occidentalis

Aechmophorus occidentalis

Western Grebe

Common1 obs.
Corvus corax

Corvus corax

common raven

Occasional1 obs.
Sayornis saya

Sayornis saya

Say's phoebe

Occasional1 obs.
Oxyura jamaicensis

Oxyura jamaicensis

Ruddy Duck

Occasional1 obs.
Verbena bracteata

Verbena bracteata

Prostrate Verbena

Occasional1 obs.
Calibrachoa parviflora

Calibrachoa parviflora

Seaside petunia

Occasional1 obs.
Helminthotheca echioides

Helminthotheca echioides

Ox tongue

Occasional1 obs.
Asclepias curassavica

Asclepias curassavica

Bloodflower

Rare1 obs.
Gomphocarpus physocarpus

Gomphocarpus physocarpus

Balloon cotton bush

Rare1 obs.
Epilobium densiflorum

Epilobium densiflorum

dense-flowered willowherb

Rare1 obs.

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No comparable locations found in this region.

Nearby Wildlife Areas in San Diego County

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

Regional Wildlife Network

These nearby locations complement Sweetwater Reservoirwithin San Diego County's wildlife network. Species counts reflect documented observations and help identify the most biodiverse areas for your nature explorations.

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