caa a22 4500 463175573 CHVBK 20180406164825.0 cr unu---uuuuu 170326e20071201xx s 000 0 eng 10.1007/s10336-007-0181-x doi (NATIONALLICENCE)springer-10.1007/s10336-007-0181-x Response of breeding waders to agri-environmental schemes may be obscured by effects of existing hydrology and farming history [Elektronische Daten] [Johnny Kahlert, Preben Clausen, Jens Hounisen, Ib Petersen] The initiation of agri-environmental schemes (AES) to improve habitats for breeding waders may not show expected benefits in all situations. We show this, using results from a study of breeding waders on 469 grassland fields in the Danish Wadden Sea area. Numbers of breeding waders were not restored to levels of the recent past, even though Lapwings Vanellus vanellus, Black-tailed Godwits Limosa limosa and Redshanks Tringa totanus were drawn to wet permanent grasslands with AES. We had expected that more waders would be attracted by improved surface water retention during the breeding period due to the AES. However, AES were not introduced to all fields, and this measure did not dramatically change the water regime in part of the breeding fields. Furthermore, dry grasslands and fields that had been cultivated or drained before did not attract more waders, despite the introduction of the AES. The results suggest that the interplay between surface water retention and former farming history are important determinants of the habitat choice for breeding waders. The study emphasises the need for pre-defined success criteria, thorough analysis of the nature of the habitat and consideration of population processes before initiation of an AES, so that realistic management goals are defined and expected benefits can be achieved. Dt. Ornithologen-Gesellschaft e.V., 2007 Cultivation nationallicence Draining nationallicence Meadow birds nationallicence Sustainable agriculture nationallicence Wetness nationallicence Kahlert Johnny Department of Wildlife Ecology and Biodiversity, National Environmental Research Institute, Århus University, Grenåvej 14, 8410, Rønde, Denmark aut Clausen Preben Department of Wildlife Ecology and Biodiversity, National Environmental Research Institute, Århus University, Grenåvej 14, 8410, Rønde, Denmark aut Hounisen Jens Department of Wildlife Ecology and Biodiversity, National Environmental Research Institute, Århus University, Grenåvej 14, 8410, Rønde, Denmark aut Petersen Ib Department of Wildlife Ecology and Biodiversity, National Environmental Research Institute, Århus University, Grenåvej 14, 8410, Rønde, Denmark aut Journal of Ornithology Springer-Verlag 148(2007-12-01), 287-293 0021-8375 148<287 2007 148 10336 https://doi.org/10.1007/s10336-007-0181-x text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10336-007-0181-x text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Kahlert Johnny Department of Wildlife Ecology and Biodiversity, National Environmental Research Institute, Århus University, Grenåvej 14, 8410, Rønde, Denmark aut NATIONALLICENCE 700 1- Clausen Preben Department of Wildlife Ecology and Biodiversity, National Environmental Research Institute, Århus University, Grenåvej 14, 8410, Rønde, Denmark aut NATIONALLICENCE 700 1- Hounisen Jens Department of Wildlife Ecology and Biodiversity, National Environmental Research Institute, Århus University, Grenåvej 14, 8410, Rønde, Denmark aut NATIONALLICENCE 700 1- Petersen Ib Department of Wildlife Ecology and Biodiversity, National Environmental Research Institute, Århus University, Grenåvej 14, 8410, Rønde, Denmark aut NATIONALLICENCE 773 0- Journal of Ornithology Springer-Verlag 148(2007-12-01), 287-293 0021-8375 148<287 2007 148 10336 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer