Synnøve Grenne
Forsker
(+47) 928 95 933
synnove.grenne@nibio.no
Sted
Trondheim
Besøksadresse
Klæbuveien 153, bygg C 1.etasje, 7030 Trondheim
Sammendrag
Denne rapporten er skrevet på oppdrag for Jomfruland nasjonalparkstyre og Statsforvalteren i Vestfold og Telemark etter kartlegging av utbredelse og spredningsfare for fremmedarter på Jomfruland. Kartleggingen foregikk over to dager og resulterte i mange funn av fremmedarter på øya. Fremmedarter er globalt en av de største truslene mot biologisk mangfold. Deler av Jomfruland er utvalgt kulturlandskap og nasjonalpark. Øya inneholder store naturverdier knyttet til ulike naturtyper og et stort biologisk mangfold. Spredning av fremmedarter på Jomfruland fra fritidsboliger og private hager, campingplasser, påslag fra sjø m.m er økende. Vi beskriver i denne rapporten funn av registrerte fremmede arter, tiltak samt prioritering av bekjempelse mot de fremmede artene.
Sammendrag
Det er ikke registrert sammendrag
Sammendrag
Semi-natural hay meadows are among the most species-rich habitats in Norway as well as in Europe. To maintain the biodiversity of hay meadows, it is important to understand local management regimes and the land use history that has shaped them and their biodiversity. There is however a general erosion of Traditional Ecological Knowledge (TEK), related to hay meadows and other semi-natural habitats. This review aims to examine historical and written sources of land use practices related to hay meadows and to discuss the implications of a re-introduction of TEK in present and future management practices. Traditional land use practices and TEK obtained from written sources from four Norwegian regions and for the country as a whole are compared with present management practices. Written sources show that hay meadows have been managed in a complex but flexible way. Today's management regimes of hay meadows in Norway are streamlined and strongly simplified, most often involving only one late mowing and in some cases grazing. This simplification may result in loss of biodiversity. The potential to include more variety of management practices in hay meadows, by utilizing knowledge from written sources more systematically in combination with farmers’ experienced knowledge (TEK) should be better utilized. Such an approach may secure both the biodiversity in hay meadows and TEK for the future. Former and present landscape ecological contexts in the infield-outlying land system show that management should be done for larger landscapes rather than small, isolated hay meadows, to optimize biodiversity conservation. For this study, we conducted a Norwegian literature review, based on ethnographical and ethnobotanical sources, as well as historical and present agricultural statistics, historical maps, results from research projects, and other sources. Our findings are discussed with similar European studies focusing on the historical management of hay meadows.