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San Anselmo

Ecosystem Overview

The San Anselmo ecosystem supports 100 documented wildlife species across 92 taxonomic genera. Located in marin 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 #8 for species diversity among 31 marin county County natural areas, placing it in the 74th percentile for biodiversity.

Biodiversity Highlights

100
Total Species
Documented wildlife species
92
Genus Diversity
Taxonomic genera represented
51
Common Species
Frequently observed species
49
Rare Species
Occasionally documented species
#8
Regional Rank
Out of 31 locations

Species Distribution

Very Common21 species
Common30 species
Occasional30 species
Rare19 species

Regional Context

Regional Ranking
#8 of 31 locations
74th percentile for diversity
vs. Marin County
0% species diversity

Most Common Species

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

Halictus tripartitus

Halictus tripartitus

Very Common42 obs.
Apis mellifera

Apis mellifera

Western Honey Bee

Very Common39 obs.
Polistes dominula

Polistes dominula

Paper Wasp

Very Common24 obs.
Prenolepis imparis

Prenolepis imparis

Small Honey Ant

Very Common22 obs.
Danaus plexippus

Danaus plexippus

monarch

Very Common20 obs.
Bombus melanopygus

Bombus melanopygus

Black Tail Bumble Bee

Common20 obs.
Halictus ligatus

Halictus ligatus

Ligated Furrow Bee

Common19 obs.
Anthidium manicatum

Anthidium manicatum

Wool Carder Bee

Common19 obs.
Syritta pipiens

Syritta pipiens

Hover fly

Common19 obs.
Dione vanillae

Dione vanillae

Gulf Fritillary

Common19 obs.
Vespula pensylvanica

Vespula pensylvanica

Common17 obs.
Argia vivida

Argia vivida

Vivid Dancer

Occasional17 obs.
Triteleia laxa

Triteleia laxa

Ithuriel's-spear

Occasional16 obs.
Oxyopes scalaris

Oxyopes scalaris

Occasional16 obs.
Paragus haemorrhous

Paragus haemorrhous

Occasional16 obs.
Merodon equestris

Merodon equestris

Hover fly

Occasional15 obs.
Mischocyttarus flavitarsis

Mischocyttarus flavitarsis

Occasional15 obs.
Lon melane

Lon melane

Umber Skipper

Rare13 obs.
Vanessa cardui

Vanessa cardui

painted lady

Rare13 obs.
Allograpta obliqua

Allograpta obliqua

Oblique Stripetail

Rare13 obs.

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No comparable locations found in this region.

Nearby Wildlife Areas in Marin County

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

Regional Wildlife Network

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

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