Lewes

Ecosystem Overview

The Lewes ecosystem supports 100 documented wildlife species across 95 taxonomic genera. Located in Sussex County, Delaware, 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 #3 for species diversity among 43 Sussex County County natural areas, placing it in the 93th percentile for biodiversity.

Biodiversity Highlights

100

Total Species

Documented wildlife species

Genus Diversity

Taxonomic genera represented

Common Species

Frequently observed species

Rare Species

Occasionally documented species

Regional Rank

Out of 43 locations

Species Distribution

Very Common21 species

Common30 species

Occasional30 species

Rare19 species

Regional Context

Regional Ranking

#3 of 43 locations

93th percentile for diversity

vs. Sussex County

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 100 total documented species.

Pandion haliaetus

osprey

Very Common54 obs.

Odocoileus virginianus

Key Deer

Very Common28 obs.

Erythrodiplax berenice

Seaside Dragonlet

Very Common26 obs.

Ligia exotica

Very Common24 obs.

Littoraria irrorata

Very Common15 obs.

Oncopeltus fasciatus

Large Milkweed Bug

Common14 obs.

Butorides virescens

green heron

Common11 obs.

Pseudemys rubriventris

Eastern Redbelly Turtle

Common11 obs.

Danaus plexippus

monarch

Common10 obs.

Anas platyrhynchos

mallard

Common9 obs.

Limulus polyphemus

horseshoe crab

Common8 obs.

Ardea herodias

Great Blue Heron

Occasional8 obs.

Cardinalis cardinalis

Northern Cardinal

Occasional7 obs.

Sylvilagus floridanus

Lapin A Queue Blanche

Occasional7 obs.

Perithemis tenera

Eastern Amberwing

Occasional6 obs.

Ischnura posita

Fragile Forktail

Occasional6 obs.

Mimus polyglottos

Northern Mockingbird

Occasional6 obs.

Callinectes sapidus

blue swimming crab

Rare5 obs.

Ocypode quadrata

Atlantic ghost crab

Rare5 obs.

Papilio polyxenes

American Swallowtail

Rare5 obs.

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Most Common Species

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Regional Comparison

Regional Ranking

100

Species Count

+82%

vs. Regional Average

Compared to 8 nearby locations in Sussex County County, Delaware

Nearby Natural Areas

Sussex County

Importance: 0.42

100 species

0% vs. current

Rehoboth Beach

Importance: 0.40

100 species

0% vs. current

Millsboro

Importance: 0.40

100 species

0% vs. current

Dagsboro

Importance: 0.39

1 species

+9900% vs. current

Seaford

Importance: 0.39

1 species

+9900% vs. current

Laurel

Importance: 0.39

16 species

+525% vs. current

Bethany Beach

Importance: 0.39

86 species

+16% vs. current

Milton

Importance: 0.38

38 species

+163% 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 Sussex 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

100

Species Count

+82%

vs. Regional Average

Compared to 8 nearby locations in Sussex County County, Delaware

Nearby Natural Areas

Sussex County

Importance: 0.42

100 species

0% vs. current

Rehoboth Beach

Importance: 0.40

100 species

0% vs. current

Millsboro

Importance: 0.40

100 species

0% vs. current

Dagsboro

Importance: 0.39

1 species

+9900% vs. current

Seaford

Importance: 0.39

1 species

+9900% vs. current

Laurel

Importance: 0.39

16 species

+525% vs. current

Bethany Beach

Importance: 0.39

86 species

+16% vs. current

Milton

Importance: 0.38

38 species

+163% vs. current

About This Comparison

Ecosystem Overview

Biodiversity Highlights

100

Total Species

Documented wildlife species

Genus Diversity

Taxonomic genera represented

Common Species

Frequently observed species

Rare Species

Occasionally documented species

Regional Rank

Out of 43 locations

Species Distribution

Very Common21 species

Common30 species

Occasional30 species

Rare19 species

Regional Context

Regional Ranking

#3 of 43 locations

93th percentile for diversity

vs. Sussex County

0% species diversity

Most Common Species

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

Pandion haliaetus

osprey

Very Common54 obs.

Odocoileus virginianus

Key Deer

Very Common28 obs.

Erythrodiplax berenice

Seaside Dragonlet

Very Common26 obs.

Ligia exotica

Very Common24 obs.

Littoraria irrorata

Very Common15 obs.

Oncopeltus fasciatus

Large Milkweed Bug

Common14 obs.

Butorides virescens

green heron

Common11 obs.

Pseudemys rubriventris

Eastern Redbelly Turtle

Common11 obs.

Danaus plexippus

monarch

Common10 obs.

Anas platyrhynchos

mallard

Common9 obs.

Limulus polyphemus

horseshoe crab

Common8 obs.

Ardea herodias

Great Blue Heron

Occasional8 obs.

Cardinalis cardinalis

Northern Cardinal

Occasional7 obs.

Sylvilagus floridanus

Lapin A Queue Blanche

Occasional7 obs.

Perithemis tenera

Eastern Amberwing

Occasional6 obs.

Ischnura posita

Fragile Forktail

Occasional6 obs.

Mimus polyglottos

Northern Mockingbird

Occasional6 obs.

Callinectes sapidus

blue swimming crab

Rare5 obs.

Ocypode quadrata

Atlantic ghost crab

Rare5 obs.

Papilio polyxenes

American Swallowtail

Rare5 obs.

Want the Complete Field Guide?

Get all 100 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.