Grasmere Lake

Ecosystem Overview

The Grasmere Lake ecosystem supports 18 documented wildlife species across 11 taxonomic genera. Located in Denver County, Colorado, this area provides critical habitat with diverse natural communities. The location hosts 4 frequently observed species and 3 occasionally documented species, creating a balanced ecosystem with both resident and visiting wildlife. Compared to nearby Garfield Lake, Grasmere Lake hosts 0% more species diversity. This location ranks #12 for species diversity among 41 Denver County County natural areas, placing it in the 71th percentile for biodiversity.

Biodiversity Highlights

Total Species

Documented wildlife species

Genus Diversity

Taxonomic genera represented

Common Species

Frequently observed species

Rare Species

Occasionally documented species

#12

Regional Rank

Out of 41 locations

Species Distribution

Very Common4 species

Common6 species

Occasional5 species

Rare3 species

Regional Context

Regional Ranking

#12 of 41 locations

71th percentile for diversity

vs. Garfield Lake

+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 18 total documented species.

Bucephala albeola

Bufflehead

Very Common6 obs.

Agelaius phoeniceus

Red-Winged Blackbird (Red-Winged)

Very Common4 obs.

Aythya collaris

Ring-necked Duck

Very Common3 obs.

Anas platyrhynchos

mallard

Very Common3 obs.

Spatula clypeata

Northern Shoveler

Very Common2 obs.

Larus delawarensis

Ring-billed Gull

Common1 obs.

Anas acuta

pintail, northern pintail

Common1 obs.

Mareca americana

American Wigeon

Common1 obs.

Aythya valisineria

Canvasback

Common1 obs.

Aythya affinis

Lesser Scaup

Common1 obs.

Aythya americana

Redhead

Common1 obs.

Bucephala clangula

common goldeneye

Occasional1 obs.

Asclepias speciosa

showy milkweed

Occasional1 obs.

Ondatra zibethicus

Muskrat

Occasional1 obs.

Pelecanus erythrorhynchos

American White Pelican

Occasional1 obs.

Branta canadensis

Canada goose

Occasional1 obs.

Branta hutchinsii

hutchins’s canada goose

Occasional1 obs.

Mareca strepera

Gadwall

Rare1 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 Grasmere Lake. Perfect for outdoor adventures, education, and nature exploration.

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Regional Comparison

Regional Ranking

Species Count

+100%

vs. Regional Average

Compared to 8 nearby locations in Denver County County, Colorado

Nearby Natural Areas

Sloan Lake

Importance: 0.35

47 species

-62% vs. current

Ferril Lake

Importance: 0.35

8 species

+125% vs. current

Rocky Mountain Lake

Importance: 0.35

6 species

+200% vs. current

Duck Lake

Importance: 0.35

4 species

+350% vs. current

Smith Lake

Importance: 0.35

2 species

+800% vs. current

Fishing Pond

Importance: 0.35

1 species

+1700% vs. current

Berkeley Lake

Importance: 0.35

1 species

+1700% vs. current

Barnum Park Lake Reservoir

Importance: 0.35

1 species

+1700% 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 Denver 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

Species Count

+100%

vs. Regional Average

Compared to 8 nearby locations in Denver County County, Colorado

Nearby Natural Areas

Sloan Lake

Importance: 0.35

47 species

-62% vs. current

Ferril Lake

Importance: 0.35

8 species

+125% vs. current

Rocky Mountain Lake

Importance: 0.35

6 species

+200% vs. current

Duck Lake

Importance: 0.35

4 species

+350% vs. current

Smith Lake

Importance: 0.35

2 species

+800% vs. current

Fishing Pond

Importance: 0.35

1 species

+1700% vs. current

Berkeley Lake

Importance: 0.35

1 species

+1700% vs. current

Barnum Park Lake Reservoir

Importance: 0.35

1 species

+1700% vs. current

About This Comparison

Ecosystem Overview

Biodiversity Highlights

Total Species

Documented wildlife species

Genus Diversity

Taxonomic genera represented

Common Species

Frequently observed species

Rare Species

Occasionally documented species

#12

Regional Rank

Out of 41 locations

Species Distribution

Very Common4 species

Common6 species

Occasional5 species

Rare3 species

Regional Context

Regional Ranking

#12 of 41 locations

71th percentile for diversity

vs. Garfield Lake

+0% species diversity

Most Common Species

Showing 20 most frequently observed species out of 18 total documented species.

Bucephala albeola

Bufflehead

Very Common6 obs.

Agelaius phoeniceus

Red-Winged Blackbird (Red-Winged)

Very Common4 obs.

Aythya collaris

Ring-necked Duck

Very Common3 obs.

Anas platyrhynchos

mallard

Very Common3 obs.

Spatula clypeata

Northern Shoveler

Very Common2 obs.

Larus delawarensis

Ring-billed Gull

Common1 obs.

Anas acuta

pintail, northern pintail

Common1 obs.

Mareca americana

American Wigeon

Common1 obs.

Aythya valisineria

Canvasback

Common1 obs.

Aythya affinis

Lesser Scaup

Common1 obs.

Aythya americana

Redhead

Common1 obs.

Bucephala clangula

common goldeneye

Occasional1 obs.

Asclepias speciosa

showy milkweed

Occasional1 obs.

Ondatra zibethicus

Muskrat

Occasional1 obs.

Pelecanus erythrorhynchos

American White Pelican

Occasional1 obs.

Branta canadensis

Canada goose

Occasional1 obs.

Branta hutchinsii

hutchins’s canada goose

Occasional1 obs.

Mareca strepera

Gadwall

Rare1 obs.

Want the Complete Field Guide?

Get all 18 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.