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The site was identified as important in 2002 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
Eurasian Wigeon Mareca penelope	LC	winter	1998-2000	13,867 individuals	C3
Purple Heron Ardea purpurea	LC	breeding	1998-2000	80-90 breeding pairs	C6
Great White Egret Ardea alba	LC	winter	1997-2000	76 individuals	C6
Little Tern Sternula albifrons	LC	breeding	1998-1999	76 breeding pairs	C2, C6
Common Tern Sterna hirundo	LC	breeding	1998-1999	16-171 breeding pairs	C6
Western Marsh-harrier Circus aeruginosus	LC	winter	1997-1999	39 individuals	C6
Western Marsh-harrier Circus aeruginosus	LC	breeding	1997-1999	20-36 breeding pairs	C6
A4iii Species group - waterbirds	n/a	breeding	1999-2000	58,688 individuals	A4iii, C4

1. The current IUCN Red List category. The category at the time of the IBA criteria assessment (2002) may differ.

Year	Protected Area	Designation	% overlap with IBA
1978	Valle Cavanata	Ramsar Site, Wetland of International Importance	1
1979	Laguna di Marano: Foci dello Stella	Ramsar Site, Wetland of International Importance	5
1995	Laguna di Marano e Grado	Site of Community Importance (Habitats Directive)	55
1995	Valle Cavanata e Banco Mula di Muggia	Site of Community Importance (Habitats Directive)	3
1995	Boschi di Muzzana	Site of Community Importance (Habitats Directive)	1
1995	Anse del Fiume Stella	Site of Community Importance (Habitats Directive)	<1
1995	Bosco Sacile	Site of Community Importance (Habitats Directive)	<1
1996	Riserva naturale Foci dello Stella	Riserva naturale regionale/provinciale	5
1996	Riserva naturale della Valle Cavanata	Riserva naturale regionale/provinciale	1
1996	Riserva naturale della Valle Canal Novo	Riserva naturale regionale/provinciale	<1
1996	Valle Canal Novo	Regional Nature Reserve	<1
2000	Valle Cavanata e Banco Mula di Muggia	Special Protection Area (Birds Directive)	3
2005	Laguna di Marano e Grado	Special Protection Area (Birds Directive)	56
2013	Relitti di Posidonia presso Grado	Site of Community Importance (Habitats Directive)	<1

Habitat1	Habitat detail	% of IBA
Marine Neritic		14
Artificial/Terrestrial	Arable land, Other urban and industrial areas	8
Forest	Broadleaved deciduous woodland, Alluvial and very wet forest	3
Marine Coastal/Supratidal		major (>10)
Marine Intertidal		major (>10)

1. IUCN Habitat classification.

Land use	% of IBA
fisheries/aquaculture	80
hunting	70
nature conservation and research	15
tourism/recreation	5
urban/industrial/transport	3
agriculture	2

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Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Grado and Marano lagoon (Italy). Downloaded from https://datazone.birdlife.org/site/factsheet/grado-and-marano-lagoon-iba-italy on 22/11/2024.