Multi-species habitat models highlight the key importance of flooded reedbeds for inland wetland birds: implications for management and conservation

Table 1 Results of MARS models exploring which habitat types predict the occurrence probability of species of conservation interest at the Natura 2000 sites scale (n = 21)

Type of model	Species	Selected variables	No. of subsets	GCV	RSS	R ²	Sites of occurrence (total no. of sites = 21)
Multiresponse		Reedbeds/mires	1	100	100
	Marsh Harrier					0.50	4
	Purple Heron					0.57	3
	Ferrouginous Duck					0.08	4
	Kingfisher					0.15	14
	Night Heron					0.49	3
	Little Bittern					0.08	14
	Black Kite					0.20	11
	Honey Buzzard					0.15	4
	Lesser-spotted Woodpecker					0.02	8
	Black Woodpecker					0.03	4

The results of both multi-response and species-specific models are presented. No. of subsets: number of models generated by the pruning pass, which include a given variable; GCV: generalized cross-validation; RSS: decrease in the residual sum-of-square; R²: model’s R square. Sites of occurrence: number of sites in which the species was detected, out of 21 total surveyed sites

ISSN: 2053-7166