Browsing Scientific publications by Author "Walseng, Bjørn"
Now showing items 1-10 of 10
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Assessing climatic and spatial variables influencing zooplankton richness for space-for-time predictions
Heuschele, Jan David; Andersen, Tom; Walseng, Bjørn; Hessen, Dag Olav (Peer reviewed; Journal article, 2023)1. The macroecological drivers of freshwater diversity are accredited geographical, spatial and climatic variables, but also to productivity, ecosystem age and landscape history. Locally diversity is also influenced ... -
Changes in trophic state and aquatic communities in high Arctic ponds in response to increasing goose populations
Jensen, Thomas Correll; Walseng, Bjørn; Hessen, Dag Olav; Dimante-Deimantovica, Inta; Novichkova, Anna; Chertoprud, Elena S.; Chertoprud, Mikhail V.; Sakharova, Ekaterina G.; Krylov, Aleksandr V.; Frisch, Dagmar; Christoffersen, Kirsten Seestern (Peer reviewed; Journal article, 2019)1. The high Arctic, including the Svalbard archipelago in the North Atlantic, has been exposed to direct and indirect drivers of climatic change such as rising temperatures and associated changes in hydrology and nutrient ... -
Historical human impact on Productivity and biodiversity in a subalpine oligotrophic lake in Scandinavia
Jensen, Thomas Correll; Zawiska, Izabela; Oksman, Mimmi; Słowiński, Michał; Woszczyk, Michał; Luoto, Tomi P.; Tylmann, Wojciech; Nevalainen, Liisa; Obremska, Milena; Schartau, Ann Kristin; Walseng, Bjørn (Journal article, 2019)We conducted a paleolimnological study to examine how changes in human activity interacted with climate to influence productivity and biodiversity over the past millennium in oligotrophic Lake Atnsjøen, SE Norway. The study ... -
Historical human impact on Productivity and biodiversity in a subalpine oligotrophic lake in Scandinavia
Jensen, Thomas Correll; Zawiska, Izabela; Oksman, Mimmi; Słowiński, Michał; Woszczyk, Michał; Luoto, Tomi P.; Tylmann, Wojciech; Nevalainen, Liisa; Obremska, Milena; Schartau, Ann Kristin; Walseng, Bjørn (Peer reviewed; Journal article, 2019)We conducted a paleolimnological study to examine how changes in human activity interacted with climate to influence productivity and biodiversity over the past millennium in oligotrophic Lake Atnsjøen, SE Norway. The study ... -
Interactions between demography and environmental effects are important determinants of population dynamics
Gamelon, Marlène; Grøtan, Vidar; Nilsson, Anna L. K.; Engen, Steinar; Hurrell, James W.; Jerstad, Kurt; Phillips, Adam S.; Røstad, Ole Wiggo; Slagsvold, Tore; Walseng, Bjørn; Stenseth, Nils Christian; Sæther, Bernt-Erik (Journal article; Peer reviewed, 2017)Climate change will affect the population dynamics of many species, yet the consequences for the long-term persistence of populations are poorly understood. A major reason for this is that density-dependent feedback effects ... -
Long-term annual and spatial variation of polygyny in the white-throated dipper (Cinclus cinclus)
Walseng, Bjørn; Durant, Joël; Hessen, Dag Olav; Jerstad, Kurt; Nilsson, Anna; Røstad, Ole Wiggo; Slagsvold, Tore (Peer reviewed; Journal article, 2022)Mating strategies are key components in the fitness of organisms, and notably in birds the occurrence of monogamy versus polygyny has attracted wide interest. We address this by a very comprehensive dataset (2899 breeding ... -
New and previously known species of Copepoda and Cladocera (Crustacea) from Svalbard, Norway – who are they and where do they come from?
Dimante-Deimantovica, Inta; Walseng, Bjørn; Chertoprud, Elena S.; Novichkova, Anna K. (Journal article; Peer reviewed, 2018)Arctic landscapes are characterised by an immense number of fresh and brackish water habitats – lakes, ponds and puddles. Due to a rather harsh environment, there is a limited number of species inhabiting these ecosystems. ... -
Territory location and quality, together with climate, affect the timing of breeding in the whitethroated dipper
Nilsson, Anna; Slagsvold, Tore; Røstad, Ole Wiggo; Knudsen, E.; Jerstad, Kurt; Cadahia, Luis; Reitan, Trond; Helberg, Morten; Walseng, Bjørn; Stenseth, Nils Christian (Journal article; Peer reviewed, 2019)Recent climate change has led to advanced spring phenology in many temperate regions. The phenological response to variation in the local environment, such as the habitat characteristics of the territories birds occupy, ... -
The potential influence of Atlantic salmon Salmo salar and brown trout Salmo trutta on density and breeding of the white-throated dipper Cinclus cinclus
Nilsson, Anna; L'Abee-Lund, Jan Henning; Vøllestad, Leif Asbjørn; Jerstad, Kurt; Larsen, Bjørn Mejdell; Røstad, Ole Wiggo; Saltveit, Svein Jakob; Skaugen, Thomas; Stenseth, Nils Christian; Walseng, Bjørn (Journal article; Peer reviewed, 2018)Interactions between birds and fish are often overlooked in aquatic ecosystems. We studied the influence of Atlantic salmon and brown trout on the breeding population size and reproductive output of the white-throated ... -
Zooplankton diversity and dispersal by birds; Insights from different geographical scales
Hessen, Dag O.; Jensen, Thomas C.; Walseng, Bjørn (Peer reviewed; Journal article, 2019)Given the major ecological and evolutionary role of dispersal abilities for organisms, as well as the current interest in species’ potential for further migration and colonization as a result of climatic changes or ...