Ecology Summary - Calidris alpina

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Ecology of Calidris alpina

Main Ref.	MarineSpecies.org, 2050
Remarks	Found on beach, shoreline, bay and nearshore (Ref. 116102). Biotic pollution from ship ballast water resulting in the spread of the plant Spartina anglica traced to decline of this species particularly on estuaries where it limits this shorebird's habitat use (Ref. 87784). Feeds on crustaceans, molluscs, polychaetes and insects as well as plant matter (Ref. 108096).

Aquatic zones / Water bodies

	Marine - Neritic	Marine - Oceanic	Brackishwater	Freshwater
Marine zones / Brackish and freshwater bodies	supra-littoral zone littoral zone sublittoral zone	epipelagic mesopelagic epipelagic abyssopelagic hadopelagic	estuaries/lagoons/brackish seas mangroves marshes/swamps	rivers/streams lakes/ponds caves exclusively in caves

Highighted items on the list are where Calidris alpina may be found.

Habitat

Substrate
Substrate Ref.
Special habitats
Special habitats Ref.

Associations

Ref.
Associations
Associated with
Association remarks
Parasitism

feeding

Feeding type	plants/detritus+animals (troph. 2.2-2.79)
Feeding type Ref.	BirdLife International, 2016
Feeding habit	hunting macrofauna (predator)
Feeding habit Ref.	BirdLife International, 2016

Trophic Level(s)

Estimation method	original sample		unfished population		Remark
Estimation method	Troph	s.e.	Troph	s.e.	Remark
From diet composition
From individual food items	3.29	0.35			Trophic level estimated from a number of food items using a randomized resampling routine.
Ref.