Road verges are corridors and roads barriers for the movement of flower-visiting insects

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dc.contributor.authorDániel-Ferreira, Juliana
dc.contributor.authorBerggren, Åsa
dc.contributor.authorWissman, Jörgen
dc.contributor.authorÖckinger, Erik
dc.date.accessioned2022-02-03T11:12:59Z
dc.date.available2022-02-03T11:12:59Z
dc.date.issued2021-11-25
dc.descriptionPublikation hämtad från SNDsv_SE
dc.description.abstractRoads and road verges can potentially have opposite impacts on organisms that move through the landscape. While road verges can be habitat for a large number of species, and have been proposed to act as dispersal corridors, roads can act as barriers to movement. This duality of roads and road verges has however rarely been assessed simultaneously, and it is unknown to what degree it depends on the amount of traffic on the road and on the habitat quality of the road verge. We used fluorescent powdered dye to track movements of flower-visiting insects along roads with varying traffic intensity, and in verges with contrasting habitat quality (flowering plant species richness and flower density). Insect movements along road verges were more frequent than movements into the adjacent habitats, indicating that verges act as corridors. The frequency of movements that required crossing the road was lower compared to the frequency of movements that did not, suggesting that roads are barriers. The movement patterns were independent of traffic intensity, but the barrier effect was stronger when the road verge had a higher density of flower resources. The effect of roads as a barrier and of the road verges as corridors were independent of each other. Our results suggest that flower-visiting insects tend to remain longer in road verges with high density of flowers and we therefore suggest that managing road verge habitats for an increased plant diversity will mitigate the known negative impacts of roads on insect populations.sv_SE
dc.description.sponsorshipThis study was funded by the Swedish Research Council FORMAS (contract 942-2015-988) and Stiftelsen Oscar och Lili Lamms minne (to EÖ).sv_SE
dc.identifier.citationJuliana Dániel-Ferreira, Åsa Berggren, Jörgen Wissman, Erik Öckinger. Sveriges lantbruksuniversitet, Institutionen för ekologi (2021). Data till: Vägrenar fungerar som korridorer och vägar som barriärer för rörelser av blombesökande insekter. Svensk nationell datatjänst. Version 1. https://doi.org/10.5878/h758-5n57sv_SE
dc.identifier.otherhttps://publons.com/publon/10.1111/ecog.05847
dc.identifier.urihttps://doi.org/10.1111/ecog.05847
dc.identifier.urihttps://archive-harvest.slu.se:8443/jspui/handle/20.500.12703/3940
dc.language.isoensv_SE
dc.publisherECOGRAPHYsv_SE
dc.subjectbeessv_SE
dc.subjectbutterfliessv_SE
dc.subjectdispersalsv_SE
dc.subjecthabitatssv_SE
dc.subjecthoverfliessv_SE
dc.subjectlandscapesv_SE
dc.subjectlinear infrastructure connectivitysv_SE
dc.titleRoad verges are corridors and roads barriers for the movement of flower-visiting insectssv_SE
dc.typeArticlesv_SE
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Vägrenar fungerar som korridorer och vägar som barriärer för rörelser av blombesökande insekter