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Iskalni niz: "ključne besede" (alien species) .

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Consistency of impact assessment protocols for non-native species
Pablo González-Moreno, Lorenzo Lazzaro, Montserrat Vila, Cristina Preda, Tim Adriaens, Sven Bacher, Giuseppe Brundu, Gordon H. Copp, Franz Essl, Nikica Ogris, 2019

Povzetek: 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.
Ključne besede: environmental impact, expert judgement, invasive alien species policy, management prioritization, risk assessment, socio-economic impact
DiRROS - Objavljeno: 03.04.2019; Ogledov: 662; Prenosov: 266
URL Celotno besedilo (0,00 KB)

The first record of two non-native ambrosia beetles in Slovenia: Ambrosiodmus rubricollis (Eichhoff, 1875) and Ambrosiophilus atratus (Eichhoff, 1875) (Coleoptera: Curculionidae, Scolytinae)
Tine Hauptman, Barbara Piškur, Massimo Faccoli, Blaž Rekanje, Andraž Marinč, Maja Jurc, 2019

Povzetek: In September 2017, during the monitoring of the non-native ambrosia beetle Xylosandrus germanus (Blandford, 1894), one specimen of an unknown ambrosia bark beetle species was collected in Slovenia. The specimen was trapped in an ethanol-baited trap located in Klavže (46 09 39 N, 13 48 7 E), in the western part of Slovenia. The most characteristic feature distinguishing the specimen from other known ambrosia beetle species occurring in Slovenia was the asperities that covered the entire surface of the pronotum. Based on the scientific literature concerning the non-native bark and ambrosia beetles in Europe (Kirkendall & Faccoli 2010) and illustrated identification keys (Rabaglia et al. 2006; Faccoli et al. 2009), we identified the beetle by its morphological characteristics as Ambrosiodmus rubricollis (Eichhoff, 1875). As a result of this find, a specific monitoring was set up in 2018 in Slovenia with the aim to improve the knowledge about occurrence and distribution of A. rubricollis in this country.
Ključne besede: Coleoptera, Curculionidae, Scolytinae, forest health, alien species, ambrosia bark beetles, first record, Ambrosiodmus rubricollis, Ambrosiophilus atratus, Slovenia
DiRROS - Objavljeno: 20.02.2020; Ogledov: 152; Prenosov: 129
URL Celotno besedilo (0,00 KB)

First record of the Asian ambrosia beetle, Xylosandrus crassiusculus (Motschulsky) (Coleoptera: Curculionidae, Scolytinae), in Slovenia
Andreja Kavčič, 2018

Povzetek: Xylosandrus crassiusculus (Coleoptera: Curculionidae, Scolytinae), with the common name the Asian ambrosia beetle or the granulate ambrosia beetle, originates in tropical and subtropical regions of eastern Asia. It is one of the most widespread wood-boring beetles and among these one of the most successful invaders (IPPC 2017). Outside its native habitat, the species is present in Africa (Wood & Bright 1992, Atkinson et al. 2000), in Australia (IPPC 2017), on the Pacific Islands (Beaver 1976), in the Americas (Atkinson 1988, Rabaglia et al. 2006, Flechtmann & Atkinson 2016, Landi et al. 2017) and in Europe (Pennacchio et al. 2003, Nageleisen et al. 2015, Gallego et al. 2016, Francardi et al. 2017).
Ključne besede: alien invasive species, bark beetles, polyphagy, broad-leaved woody plants, natural dispersal, impact
DiRROS - Objavljeno: 20.02.2020; Ogledov: 185; Prenosov: 134
URL Celotno besedilo (0,00 KB)

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