Publications
NIBIOs employees contribute to several hundred scientific articles and research reports every year. You can browse or search in our collection which contains references and links to these publications as well as other research and dissemination activities. The collection is continously updated with new and historical material.
2022
Abstract
Invasive species are leading causes of biodiversity loss and economic damage. Prevention and management of invasions requires risk assessments based on ecological knowledge for species of potential concern. Interactions between introduced species and heterospecifics in the recipient community may affect the likelihood of establishment through biotic resistance and facilitation and are therefore important predictors of invasion risk. Experimentally exposing one species to another to observe their interactions is not always safe or practical, and containment facilities offer artificial environments which may limit the number of species and the types of interactions that may be tested. To predict biotic resistance and facilitation in a more natural setting, we deployed traps with pheromone lures in the field to mimic the presence of two potentially invasive spruce bark beetles, the European Ips typographus (tested in eastern Canada), and the North American Dendroctonus rufipennis (tested in Norway). We identified and counted possible predators, competitors, and facilitators that were captured in the traps. In eastern Canada, possible predators and competitors responded strongly to I. typographus lures, suggesting the potential for considerable biotic resistance. In Norway, D. rufipennis lures prompted little response by predators or competitors, suggesting that D. rufipennis may experience reduced biotic resistance in Europe. Dendroctonus rufipennis was also attracted to I. typographus pheromone, which may encourage facilitation between these species through cooperative mass attack on trees. Our findings will inform invasive-species risk assessments for I. typographus and D. rufipennis and highlight useful methods for predicting interactions between species that rely heavily on semiochemical communication.
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Authors
Truls Nesbakken Håvard Steinshamn Iben Margrete Thomsen Dean Basic Thea B. Blystad Klem Tron Øystein Gifstad Kyrre Linné Kausrud Kjetil Klaveness Melby Lawrence Richard Kirkendall Christer Magnusson Inger Elisabeth Måren Mogens Nicolaisen Åshild Taksdal Randby Maria Stokstad Siamak Pour Yazdankhah Per Hans Micael Wendell Angelika Agdestein Hugo de Boer Jacques Xavier Leon Godfroid Solveig Jore Paal Krokene Live Lingaas Nesse Knut Madslien Trond Møretrø Gaute VelleAbstract
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Arne Stensvand Katherine Ann Gredvig Nielsen May Bente Brurberg Vinh Hong Le Henrik Tellevik Stine Huseby Rune Vereide Lill-Iren Hansen Dag RøenAbstract
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Bjørn Arild Hatteland May Bente Brurberg Rosemarie Tedeschi Wolfgang Jarausch Barbara Jarausch Dag-Ragnar BlystadAbstract
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Katherine Ann Gredvig Nielsen Magne Nordang Skårn Venche Talgø Martin Petterson Inger Sundheim Fløistad Gunn Mari Strømeng May Bente Brurberg Arne StensvandAbstract
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