Merrimac

Ecosystem Overview

The Merrimac ecosystem supports 73 documented wildlife species across 69 taxonomic genera. Located in Massachusetts, this area provides critical habitat for regional wildlife. The location hosts 15 frequently observed species and 14 occasionally documented species, creating a balanced ecosystem with both resident and visiting wildlife. While Massachusetts nearby has 27% more documented species, Merrimac offers unique wildlife observation opportunities. This location ranks #187 for species diversity among 710 Massachusetts natural areas, placing it in the 74th 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

#187

Regional Rank

Out of 710 locations

Species Distribution

Very Common15 species

Common22 species

Occasional22 species

Rare14 species

Regional Context

Regional Ranking

#187 of 710 locations

74th percentile for diversity

vs. Massachusetts

-27% species diversity

Ecosystem Overview

‌
‌
‌
‌

Biodiversity Highlights

‌

Species Distribution

Very Common‌

Common‌

Occasional‌

Rare‌

Regional Context

Regional Ranking

‌

Most Common Species

Showing 20 most frequently observed species out of 73 total documented species.

Pyrola americana

American Wintergreen

Very Common3 obs.

Clethra alnifolia

Sweet Pepperbush

Very Common3 obs.

Euonymus alatus

Winged Euonymus

Very Common3 obs.

Aralia nudicaulis

Shotbush

Very Common3 obs.

Sanguinaria canadensis

Puccoon-Root

Very Common2 obs.

Prunus serotina

rum cherry, black cherry

Common2 obs.

Solanum dulcamara

bittersweet, woody nightshade

Common2 obs.

Mutinus elegans

Devil'S Dipstick

Common2 obs.

Celastrus orbiculatus

Asian Bittersweet

Common2 obs.

Chelidonium majus

greater celandine

Common2 obs.

Amauropelta noveboracensis

New York fern

Common2 obs.

Sedum album

White Stonecrop

Occasional2 obs.

Haemorhous mexicanus

House Finch

Occasional2 obs.

Trametes gibbosa

Lumpy Bracket

Occasional2 obs.

Fomitopsis betulina

Occasional2 obs.

Viburnum lantanoides

Moosewood

Occasional2 obs.

Eumorpha pandorus

Pandorus Sphinx Moth

Occasional2 obs.

Leucoagaricus americanus

Reddening Lepiota

Rare1 obs.

Phyllotopsis nidulans

Stinking Orange Oyster

Rare1 obs.

Platycryptus undatus

Tan Jumping Spider

Rare1 obs.

Want the Complete Field Guide?

Get all 73 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.

Most Common Species

‌

‌
‌

‌

‌
‌

‌

‌
‌

‌

‌
‌

‌

‌
‌

‌

‌
‌

‌

‌
‌

‌

‌
‌

‌

‌
‌

‌

‌
‌

‌

‌
‌

‌

‌
‌

‌

‌
‌

‌

‌
‌

‌

‌
‌

‌

‌
‌

‌

‌
‌

‌

‌
‌

‌

‌
‌

‌

‌
‌

Want the Complete Field Guide?

‌
‌

‌

Get Your Personalized Field Guide

Download a professional PDF field guide featuring all the species found in Merrimac. Perfect for outdoor adventures, education, and nature exploration.

$6.99

Get Your Personalized Field Guide

Download a professional PDF field guide featuring all the species found in Merrimac. Perfect for outdoor adventures, education, and nature exploration.

Email Address (for delivery)

Your field guide will be delivered to this email address. Please double-check for accuracy.

$6.99

Regional Comparison

Regional Ranking

Species Count

-27%

vs. Regional Average

Compared to 8 nearby locations in Massachusetts

Nearby Natural Areas

Massachusetts

Importance: 0.78

100 species

-27% vs. current

Boston

Importance: 0.73

100 species

-27% vs. current

Cambridge

Importance: 0.57

100 species

-27% vs. current

Worcester

Importance: 0.54

100 species

-27% vs. current

Quincy

Importance: 0.49

100 species

-27% vs. current

Lowell

Importance: 0.49

100 species

-27% vs. current

Newton

Importance: 0.48

100 species

-27% vs. current

Worcester County

Importance: 0.48

100 species

-27% 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 Massachusetts.

Regional Comparison

‌

Regional Ranking

‌

Species Count

‌

vs. Regional Average

‌

Nearby Natural Areas

‌
‌

‌

‌
‌

‌

‌
‌

‌

‌
‌

‌

‌
‌

‌

‌
‌

‌

‌
‌

‌

‌
‌

‌

About This Comparison

‌
‌
‌

Regional Comparison

Regional Ranking

Species Count

-27%

vs. Regional Average

Compared to 8 nearby locations in Massachusetts

Nearby Natural Areas

Massachusetts

Importance: 0.78

100 species

-27% vs. current

Boston

Importance: 0.73

100 species

-27% vs. current

Cambridge

Importance: 0.57

100 species

-27% vs. current

Worcester

Importance: 0.54

100 species

-27% vs. current

Quincy

Importance: 0.49

100 species

-27% vs. current

Lowell

Importance: 0.49

100 species

-27% vs. current

Newton

Importance: 0.48

100 species

-27% vs. current

Worcester County

Importance: 0.48

100 species

-27% 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

#187

Regional Rank

Out of 710 locations

Species Distribution

Very Common15 species

Common22 species

Occasional22 species

Rare14 species

Regional Context

Regional Ranking

#187 of 710 locations

74th percentile for diversity

vs. Massachusetts

-27% species diversity

Most Common Species

Showing 20 most frequently observed species out of 73 total documented species.

Pyrola americana

American Wintergreen

Very Common3 obs.

Clethra alnifolia

Sweet Pepperbush

Very Common3 obs.

Euonymus alatus

Winged Euonymus

Very Common3 obs.

Aralia nudicaulis

Shotbush

Very Common3 obs.

Sanguinaria canadensis

Puccoon-Root

Very Common2 obs.

Prunus serotina

rum cherry, black cherry

Common2 obs.

Solanum dulcamara

bittersweet, woody nightshade

Common2 obs.

Mutinus elegans

Devil'S Dipstick

Common2 obs.

Celastrus orbiculatus

Asian Bittersweet

Common2 obs.

Chelidonium majus

greater celandine

Common2 obs.

Amauropelta noveboracensis

New York fern

Common2 obs.

Sedum album

White Stonecrop

Occasional2 obs.

Haemorhous mexicanus

House Finch

Occasional2 obs.

Trametes gibbosa

Lumpy Bracket

Occasional2 obs.

Fomitopsis betulina

Occasional2 obs.

Viburnum lantanoides

Moosewood

Occasional2 obs.

Eumorpha pandorus

Pandorus Sphinx Moth

Occasional2 obs.

Leucoagaricus americanus

Reddening Lepiota

Rare1 obs.

Phyllotopsis nidulans

Stinking Orange Oyster

Rare1 obs.

Platycryptus undatus

Tan Jumping Spider

Rare1 obs.

Want the Complete Field Guide?

Get all 73 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.