Publikasjoner
NIBIOs ansatte publiserer flere hundre vitenskapelige artikler og forskningsrapporter hvert år. Her finner du referanser og lenker til publikasjoner og andre forsknings- og formidlingsaktiviteter. Samlingen oppdateres løpende med både nytt og historisk materiale. For mer informasjon om NIBIOs publikasjoner, besøk NIBIOs bibliotek.
2019
Sammendrag
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Forfattere
Bjørn ØklandSammendrag
The populations sizes of Ips typographus in Norway have been monitored since the last big outbreak period in the 1970s. By now the monitoring programme includes about 500 pheromone-baited trap records for each of the last 40 years. Normally, Ips typographus has been the only species of major concern in northern bark beetle outbreaks, and trapping records have served as a warning when the over-wintering population sizes are large. In contrast to Central Europe, the regional trend in northwest is that rainy weather tend to slow down the bark beetle populations in many years, whereas stormfelling episodes of spruces, snowbreaks and warm and dry seasons in certain years favour Ips typographus and other bark beetle species. Recent observations indicate that other less aggressive bark beetle species may play a more important role during severe drought periods that follow rainful seasons with low production of Ips typographus. It is likely that an increased frequency of extreme weather events may have unexpected effects on what bark beetles become abundant during the course of the outbreaks. Furthermore, the warm years seem to be especially favourable for the Ips typographus at the northernmost latitudes. In addition, a new bark beetle species for Scandinavia, Ips amitinus, is expanding its range and may become a participant in future bark beetle outbreaks in this region.
Sammendrag
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Forfattere
Synnøve GrenneSammendrag
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Sammendrag
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Forfattere
Pablo González-Moreno Lorenzo Lazzaro Montserrat Vilà Cristina Preda Tim Adriaens Sven Bacher Giuseppe Brundu Gordon H. Copp Franz Essl Emili Garcia-Berthou Stelios Katsanevakis Toril Loennechen Moen Frances E. Lucy Wolfgang Nentwig Helen E. Roy Greta Srėbalienė Venche Talgø Sonia Vanderhoeven Ana Andjelković Kęstutis Arbačiauskas Marie-Anne Auger-Rozenberg Mi-Jung Bae Michel Bariche Pieter Boets Mário Boieiro Paulo Alexandre Borges João Canning-Clode Frederico Cardigos Niki Chartosia Elizabeth Joanne Cottier-Cook Fabio Crocetta Bram D'hondt Bruno Foggi Swen Follak Belinda Gallardo Øivind Gammelmo Sylvaine Giakoumi Claudia Giuliani Guillaume Fried Lucija Šerić Jelaska Jonathan M. Jeschke Miquel Jover Alejandro Juárez-Escario Stefanos Kalogirou Aleksandra Kočić Eleni Kytinou Ciaran Laverty Vanessa Lozano Alberto Maceda-Veiga Elizabete Marchante Hélia Marchante Angeliki F. Martinou Sandro Meyer Dan Michin Ana Montero-Castaño Maria Cristina Morais Carmen Morales-Rodriguez Nadia Muhthassim Zoltán Á. Nagy Nikica Ogris Huseyin Onen Jan Pergl Riikka Puntila Wolfgang Rabitsch Triya Tessa Ramburn Carla Rego Fabian Reichenbach Carmen Romeralo Wolf-Christian Saul Gritta Schrader Rory Sheehan Predrag Simonović Marius Skolka António Onofre Soares Leif Sundheim Ali Serhan Tarkan Rumen Tomov Elena Tricarico Konstantinos Tsiamis Ahmet Uludağ Johan van Valkenburg Hugo Verreycken Anna Maria Vettraino Lluís Vilar Øystein Wiig Johanna Witzell Andrea Zanetta Marc KenisSammendrag
Standardized tools are needed to identify and prioritize the most harmful non-native species (NNS). A plethora of assessment protocols have been developed to evaluate the current and potential impacts of non-native species, but consistency among them has received limited attention. To estimate the consistency across impact assessment protocols, 89 specialists in biological invasions used 11 protocols to screen 57 NNS (2614 assessments). We tested if the consistency in the impact scoring across assessors, quantified as the coefficient of variation (CV), was dependent on the characteristics of the protocol, the taxonomic group and the expertise of the assessor. Mean CV across assessors was 40%, with a maximum of 223%. CV was lower for protocols with a low number of score levels, which demanded high levels of expertise, and when the assessors had greater expertise on the assessed species. The similarity among protocols with respect to the final scores was higher when the protocols considered the same impact types. We conclude that all protocols led to considerable inconsistency among assessors. In order to improve consistency, we highlight the importance of selecting assessors with high expertise, providing clear guidelines and adequate training but also deriving final decisions collaboratively by consensus.
Sammendrag
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Forfattere
Finn-Arne HaugenSammendrag
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Forfattere
Finn-Arne HaugenSammendrag
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Forfattere
Finn-Arne HaugenSammendrag
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