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Dynamic system

constantly changing; Littoral Drift/Longshore Sand Transport

Importance of Barrier Islands

1) Defend shore by reducing energy
2) Economic - Tourism/vacation homes

Sand make up

1) Northwest side - Quartz
2) Eastern side - Calcium carbonate (CoCO3)


A) area of high energy from wind and wave action
B) no plant life with few organisms
-Surf zone-always wet, wavy
-Intertidal zone-area between high and low tide
-Wrack line-line of debris at the high tide

Coquina Surf Clam

Donax variabilis (Intertidal zone)

Sea Oats

Uniola paniculata (Foredune/Primary Dune)

Bitter Panicum

Panicum amarum (Primary Dune/Early Secondary Dunes)


Hydrocotyle bonariensis (Primary Dune/Early Secondary Dunes)

Salt Meadow Hay; Marsh-Hay Cord Grass

Spartina patens (2ary)

*Gulf Bluestem; Coastal Bluestem

Schizachyrium maritimum (2ary)

*Woody Goldenrod

Chrysoma pauciflosculosa (2ary)

Sand live Oak

Quercus geminata (2ary)

*Florida Beach Rosemary

Ceratiola ericoides (2ary)

*False Rosemary

Conradina canescens (2ary)

*Santa Rosa Beach Mouse (Old Beach Mouse subspecies)

Peromyscus polionotus leucocephalis (2ary)

*Needlepod rush

Juncus scripoides (Freshwater Swells)

Saw Palmetto

Serenoa repens (Maritime Forest)

*Slash pine

Pinus elliotti (Maritime Forest)

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