The traditional exam has a strong holding within Norwegian higher education and is very often the preferred way of assessing students. Digital technology opens up for alternatives to the traditional exam, but so far focus has predominantly been on exchanging pen and paper with personal computers within the traditional framework. Digital alternatives may come in conflict with existing law governing teaching and assessment at university, as the law was written at a time when digital technology did not exist. We present data from a workshop in which 48 individuals from 11 institutions, academics as well as administration, were asked to identify and discuss challenges related to the introduction of digital alternatives. A case study strategy was considered appropriate as this gave us the opportunity to collect information from representatives from many universities and university colleges across Norway. Lack of knowledge about alternatives to the traditional exam, and lack of knowledge as to how digital technology may be used in assessing students were the kind of challenges most often mentioned. Assessment practices may be rooted in an assessment policy, but data from a survey (29% response rate) indicate that there is little awareness concerning this issue within Norwegian higher education institutions.

Host selection behavior mediated by differential landing rates of the walnut twig beetle, Pityophthorus juglandis, and associated subcortical insect species, on two western North American walnut species, Juglans californica and J. major AbstractThe walnut twig beetle, Pityophthorus juglandis Blackman (Coleoptera: Scolytidae), vectors a phytopathogenic fungus, Geosmithia morbida Kola r ık et al. (Hypocreales), which causes thousand cankers disease (TCD) in walnut (Juglans sp.) and wingnut (Pterocarya sp., both Juglandaceae) trees. We investigated an early point in disease inception in two walnut species -Juglans californica S. Wats. and Juglans major (Torr. ex Sitsgr.) Hellernative to riparian forests of the western USA by comparing P. juglandis flight and landing responses to small-diameter branch sections. Twenty unbaited branch sections (10 each of J. californica and J. major) were presented in a completely randomized design to populations of P. juglandis at the USDA Agricultural Research Service, National Clonal Germplasm Repository (NCGR) Juglans collection located at Wolfskill Experimental Orchards (Winters, CA, USA) and at the California State University, Chico, Agricultural Teaching and Research Center (ATRC, Chico, CA). These assays were carried out within a 4-to 6-year period when weekly flight surveys with aggregation pheromone-baited multiple funnel traps revealed that P. juglandis flight activity-abundance was higher at the NCGR than at the ATRC. For the landing rate assays, adhesive-coated acetate sheets were wrapped around the branch sections and exchanged weekly. Three assays were completed at the NCGR (assays 1-3), whereas one assay was completed at the ATRC (assay 4). Landing rates on these traps were compared between J. californica and J. major. Two additional assays (5 and 6) were completed at the NCGR to compare responses to branch sections of J. californica and to similarly sized cardboard tubes (negative control). All six assays were completed over a 4-year span during the 4-to 6-year weekly flight survey period. Pooled landing rates of male and female P. juglandis (assays 1-4) demonstrated a preference by both sexes for J. californica over J. major. In assay 5 there was no preference by males or females for J. californica over the negative control, perhaps due to the low flight activity-abundance of P. juglandis during the assay. When repeated at a time of higher flight activity-abundance (assay 6), male and female landing rates on J. californica exceeded those on the negative control. Females of the invasive fruit-tree pinhole borer (an ambrosia beetle), Xyleborinus saxeseni (Ratzeburg), and an invasive bark beetle, Hypothenemus eruditus Westwood (both Coleoptera: Scolytidae), showed relatively higher flight responses than either sex of P. juglandis during most assays, suggesting higher population densities of these two other invasive species at the two orchards or a greater sensitivity to host volatiles. Xyleborinus saxeseni and H. eruditus preferred to land on J. major over J. californic...

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