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The site was identified as important in 2000 because it was regularly supporting significant populations of the species listed below, meeting ('triggering') IBA criteria.

Populations meeting IBA criteria ('trigger species') at the site:

Species	Red List1	Season	Year(s)	Size	IBA criteria
Brent Goose Branta bernicla	LC	non-breeding	1991	12,000 individuals	A4i, B1i, C3
Eurasian Oystercatcher Haematopus ostralegus	NT	non-breeding	1991	15,000 individuals	A4i, B1i, C3
Bar-tailed Godwit Limosa lapponica	NT	passage	1991	25,000 individuals	A4i, B1i, C2
Red Knot Calidris canutus	NT	non-breeding	1991	20,000 individuals	A4i, B1i, C3
Dunlin Calidris alpina	NT	passage	1991	75,000 individuals	A4i, B1i, C3
Common Redshank Tringa totanus	LC	breeding	1991	136 breeding pairs	B2
A4iii Species group - waterbirds	n/a	winter	1991	100,000-499,999 individuals	A4iii, C4

1. The current IUCN Red List category. The category at the time of the IBA criteria assessment (2000) may differ.

Ideally the conservation status of the IBA will have been checked regularly since the site was first identified in 2000. The most recent assessment (2010) is shown below.

State (condition of the trigger species' populations)
Species	Reference	Actual	Units	% remaining	Result
Barnacle Goose Branta leucopsis	20,000	20,000	individuals	100	favourable
Common Eider Somateria mollissima	3,200	3,200	individuals	100	favourable
Melanitta nigra	600	600	individuals	100	favourable
Common Shelduck Tadorna tadorna	5,771	5,771	individuals	100	favourable
Northern Shoveler Spatula clypeata	30	15	individuals	50	unfavourable
Northern Pintail Anas acuta	200	10	individuals	5	very unfavourable
Anas crecca	102	102	individuals	100	favourable
Great Cormorant Phalacrocorax carbo	75	75	individuals	100	favourable
Pied Avocet Recurvirostra avosetta	560	560	individuals	100	favourable
Grey Plover Pluvialis squatarola	2,000	2,000	individuals	100	favourable
Eurasian Golden Plover Pluvialis apricaria	10,600	10,600	individuals	100	favourable
Eurasian Curlew Numenius arquata	3,488	3,488	individuals	100	favourable
Dunlin Calidris alpina	2	0	breeding pairs	0	very unfavourable
Common Greenshank Tringa nebularia	1,000	1,000	individuals	100	favourable
Black-headed Gull Larus ridibundus	900	300	individuals	34	very unfavourable
Mew Gull Larus canus	825	825	individuals	100	favourable
Great Black-backed Gull Larus marinus	152	75	individuals	50	unfavourable
Larus argentatus	1,075	952	individuals	89	near favourable
Short-eared Owl Asio flammeus	3	2	breeding pairs	67	unfavourable

Response (conservation actions taken for the trigger species and/or their habitats)
Protected areas	Management plan	Other action	Result
Not assessed	Not assessed	Not assessed	not assessed

Year	Protected Area	Designation	% overlap with IBA
1983	Mandø	Special Protection Area (Birds Directive)	100
1987	Vadehavet	Ramsar Site, Wetland of International Importance	100
1992	Esbjerg Kommune	§3 beskyttet natur (alle søer, moser, vandløb, heder, enge mv)	18
1998	Vadehavet med Ribe Å; Tved Å og Varde Å vest for Varde	Site of Community Importance (Habitats Directive)	100
2009	The Wadden Sea	World Heritage Site (natural or mixed)	100
2009	Vadehavet med Ribe Å, Tved Å og Varde Å vest for Varde	Marine Protected Area (OSPAR)	7
2010	Nationalpark Vadehavet	Nationalpark	100

Habitat1	Habitat detail	% of IBA
Grassland	Humid grasslands	45
Marine Intertidal		35
Artificial/Terrestrial	Arable land, Other urban and industrial areas	20

1. IUCN Habitat classification.

Land use	% of IBA
agriculture	55
nature conservation and research	35
urban/industrial/transport	10

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Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Mandø (Denmark). Downloaded from https://datazone.birdlife.org/site/factsheet/mandø-iba-denmark on 23/11/2024.