Combining modelling tools to evaluate a goose management scheme
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Many goose species feed on agricultural land, and with growing goose numbers, conflicts with agriculture are increasing. One possible solution is to designate refuge areas where farmers are paid to leave geese undisturbed. Here, we present a generic modelling tool that can be used to designate the best locations for refuges and to gauge the area needed to accommodate the geese. With a species distribution model, locations are ranked according to goose suitability. The size of the area to be designated as refuge can be chosen by including more or less suitable locations. A resource depletion model is then used to estimate whether enough resources are available within the designated refuge to accommodate all geese, taking into account the dynamics of food resources, including depletion by geese. We illustrate this with the management scheme for pink-footed goose Anser brachyrhynchus implemented in Norway. Here, all geese can be accommodated, but damage levels appear to depend on weather, land use and refuge size.
Baveco , J M , Bergjord , A K , Bjerke , J W , Chudzińska , M E , Pellissier , L , Simonsen , C E , Madsen , J , Tombre , I M , Nolet , B A & Nolet , B A 2017 , ' Combining modelling tools to evaluate a goose management scheme ' Ambio , vol 46 , no. Suppl 2 , pp. 210-223 . DOI: 10.1007/s13280-017-0899-5
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