Diet Overlap

Calidris canutus (Red Knot)
Calidris maritima (Purple Sandpiper)

Common Diet

Mytilus edulis (Blue mussel)
Rissoa parva

Common Habitat

Acadia National Park
ANSE DU FIER D'ARS EN RE
Atlantic coastal pine barrens
Atlantic mixed forests
BAHIA DE CADIZ
Baie de Quiberon
Baltic mixed forests
Berwickshire and North Northumberland Coast
Biscayne National Park
Caerlaverock National Nature Reserve
Cantabrian mixed forests
Cape Cod National Seashore
Cape Hatteras National Seashore
Cape Lookout National Seashore
Carmarthen Bay and Estuaries/ Bae Caerfyrddin ac Aberoedd
Carolinian-South Atlantic Biosphere Reserve
Celtic broadleaf forests
Chukchi Peninsula tundra
Cumberland Island National Seashore
Dee Estuary/ Aber Dyfrdwy
DOÑANA
English Lowlands beech forests
Fair Isle
Florida Keys National Marine Sanctuary
Forillon National Park
Fort Pulaski National Monument
Gateway National Recreation Area
Gros Morne National Park
High Arctic tundra
Humber Estuary
Indiana Dunes National Lakeshore
Isle of Rum National Nature Reserve
Long Point Biosphere Reserve
Marais Breton, baie de Bourgneuf, île de Noirmoutier et forêt de Monts
Marismas de Santoña y Noja
Mediterranean Basin
Merenkurkun saaristo
Middle Arctic tundra
Middle Atlantic coastal forests
Mingan Archipelago National Park Reserve
Moray Firth
Neusiedler See-Osterreichischer Teil
Niagara Escarpment Biosphere Reserve
North America
North Bull Island
North Norfolk Coast
North Northumberland Dunes
Northeastern coastal forests
Oldshoremore and Sandwood
Prince Edward Island National Park
Quttinirpaaq (Ellesmere Island) National Park Reserve
Reserva de la Biosfera de Urdaibai
Reserve de la Biosphere d'Iroise
Rondeau Provincial Park
Saaristomeri
Saguenay - St. Lawrence Marine Park
Scandinavian coastal conifer forests
Scandinavian Montane Birch forest and grasslands
Sefton Coast
Severn Estuary/ Môr Hafren
Sirmilik National Park
South Atlantic Coastal Plain Biosphere Reserve
Southwest Iberian Mediterranean sclerophyllous and mixed forests
St. Kilda National Nature Reserve
Taimyr-Central Siberian tundra
The Wash and North Norfolk Coast
Ukkusiksalik National Park
Urdaibaiko Itsasadarra / Ría de Urdaibai
Virginia Coast Biosphere Reserve

Attributes / relations provided by
♦ 1Food Web Relationships of Northern Puget Sound and the Strait of Juan de Fuca : a Synthesis of the Available Knowledge, Charles A. Simenstad, Bruce S. Miller, Carl F. Nyblade, Kathleen Thornburgh, and Lewis J. Bledsoe, EPA-600 7-29-259 September 1979
♦ 2R. W. Summers , S. Smith , M. Nicoll & N. K. Atkinson (1990) Tidal and sexual differences in the diet of Purple Sandpipers Calidris maritima in Scotland, Bird Study, 37:3, 187-194
♦ 3The Diet of the Knot (Calidris canutus) on Rocky Shores of Eastern Scotland in Winter, Ronald W. Summers & Shelagh M. Smith, Ardea 71 (1983): 151-153