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Horseshoe Lake

Ecosystem Overview

The Horseshoe Lake ecosystem supports 22 documented wildlife species across 21 taxonomic genera. Located in san mateo county, california, this area provides critical habitat with diverse natural communities. The location hosts 5 frequently observed species and 4 occasionally documented species, creating a balanced ecosystem with both resident and visiting wildlife. While San Mateo County nearby has 78% more documented species, Horseshoe Lake offers unique wildlife observation opportunities. This location ranks #19 for species diversity among 28 san mateo county County natural areas, placing it in the 32th percentile for biodiversity.

Biodiversity Highlights

22
Total Species
Documented wildlife species
21
Genus Diversity
Taxonomic genera represented
12
Common Species
Frequently observed species
10
Rare Species
Occasionally documented species
#19
Regional Rank
Out of 28 locations

Species Distribution

Very Common5 species
Common7 species
Occasional6 species
Rare4 species

Regional Context

Regional Ranking
#19 of 28 locations
32th percentile for diversity
vs. San Mateo County
-78% species diversity

Most Common Species

Showing 20 most frequently observed species out of 22 total documented species.

Fulica americana

Fulica americana

American Coot

Very Common5 obs.
Libellula forensis

Libellula forensis

Eight-spotted Skimmer

Very Common4 obs.
Libellula saturata

Libellula saturata

Flame Skimmer

Very Common4 obs.
Aythya collaris

Aythya collaris

Ring-necked Duck

Very Common4 obs.
Pachydiplax longipennis

Pachydiplax longipennis

Blue Dasher

Very Common3 obs.
Maianthemum stellatum

Maianthemum stellatum

Starry False Lily Of The Valley

Common3 obs.
Sympetrum illotum

Sympetrum illotum

Cardinal Meadowhawk

Common1 obs.
Dermacentor variabilis

Dermacentor variabilis

American Dog Tick

Common1 obs.
Sylvilagus bachmani

Sylvilagus bachmani

Brush Rabbit

Common1 obs.
Polystichum munitum

Polystichum munitum

western sword fern

Common1 obs.
Pseudotsuga menziesii

Pseudotsuga menziesii

Oregon Pine

Common1 obs.
Geranium dissectum

Geranium dissectum

Cutleaf geranium

Occasional1 obs.
Aquilegia formosa

Aquilegia formosa

western columbine

Occasional1 obs.
Psilocarphus tenellus

Psilocarphus tenellus

slender woollyheads

Occasional1 obs.
Acer macrophyllum

Acer macrophyllum

Big-Leaf Maple

Occasional1 obs.
Lobaria pulmonaria

Lobaria pulmonaria

Lungwort

Occasional1 obs.
Persicaria punctata

Persicaria punctata

dotted smartweed

Occasional1 obs.
Claytonia perfoliata

Claytonia perfoliata

Rare1 obs.
Epilobium ciliatum

Epilobium ciliatum

american willowherb

Rare1 obs.
Agelaius phoeniceus

Agelaius phoeniceus

Red-Winged Blackbird (Red-Winged)

Rare1 obs.

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No comparable locations found in this region.

Nearby Wildlife Areas in San Mateo County

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

Regional Wildlife Network

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

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