Search Results - "Christoffersen, Kirsten Seestern"

Preliminary observations on the effect of light and temperature on the hatching success and rate of Lepidurus arcticus eggs by Pasquali, Vittorio, Calizza, Edoardo, Setini, Andrea, Hazlerigg, David, Christoffersen, Kirsten Seestern

“…Dormancy, which arrests development, is a well-known survival strategy among animals living in the Arctic to overcome harsh periods. It is not clear if the…”
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Emergent and floating-leaved macrophytes as refuge for zooplankton in a eutrophic temperate lake without submerged vegetation by Cazzanelli, Matteo, Warming, Trine Perlt, Christoffersen, Kirsten Seestern

“…Several studies have shown that submerged macrophytes provide a refuge for zooplankton against fish predation, whereas the role of emergent and floating-leaved…”
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Circumpolar patterns of Arctic freshwater fish biodiversity: A baseline for monitoring by Laske, Sarah M., Amundsen, Per‐Arne, Christoffersen, Kirsten S., Erkinaro, Jaakko, Guðbergsson, Guðni, Hayden, Brian, Heino, Jani, Holmgren, Kerstin, Kahilainen, Kimmo K., Lento, Jennifer, Orell, Panu, Östergren, Johan, Power, Michael, Rafikov, Ruslan, Romakkaniemi, Atso, Svenning, Martin‐A., Swanson, Heidi, Whitman, Matthew, Zimmerman, Christian E.

“…Climate change, biological invasions, and anthropogenic disturbance pose a threat to the biodiversity and function of Arctic freshwater ecosystems…”
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Controls on stream hydrochemistry dynamics in a high Arctic snow‐covered watershed by Docherty, Catherine L., Riis, Tenna, Milner, Alexander M., Christoffersen, Kirsten Seestern, Hannah, David M.

“…Arctic streams are highly sensitive to climate change due to warmer air temperature and increased precipitation associated with an encroaching low Arctic…”
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Clonal Variation in Physiological Responses of Daphnia Magna to the Strobilurin Fungicide Azoxystrobin by Warming, Trine Perlt, Mulderij, Gabi, Christoffersen, Kirsten Seestern

“…Because of its high grazing potential, Daphnia magna is an ecologically important species in aquatic food webs. This is especially true in small, shallow ponds…”
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Freshwater diversity in Svalbard: providing baseline data for ecosystems in change by Walseng, Bjørn, Jensen, Thomas, Dimante-Deimantovica, Inta, Christoffersen, Kirsten S., Chertoprud, Mikhail, Chertoprud, Elena, Novichkova, Anna, Hessen, Dag O.

“…The high Arctic is in a rapid transition due to climate change, and both direct effects due to warming and an extended growing season, as well as an indirect…”
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Reconstruction of annual growth in relation to summer temperatures and translocation of nutrients in the aquatic moss Drepanocladus trifarius from West Greenland by Thiemer, Kirstine, Christiansen, Ditte Marie, Petersen, Nanna Slaikjer, Mortensen, Simone Møller, Christoffersen, Kirsten Seestern

“…Mosses often dominate the submerged vegetation in Arctic lakes and ponds, making them essential contributors to the primary production in these habitats…”
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Life history responses of Daphnia magna feeding on toxic Microcystis aeruginosa alone and mixed with a mixotrophic Poterioochromonas species by Zhang, Xue, Warming, Trine Perlt, Hu, Hong-Ying, Christoffersen, Kirsten Seestern

“…The toxic effects of a mixotrophic golden alga ( Poterioochromonas sp. strain ZX1) and a cyanobacterium Microcystis aeruginosa grazed by Poterioochromonas to a…”
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effect of Poterioochromonas abundance on production of intra- and extracellular microcystin-LR concentration by Zhang, Xue, Hu, Hongying, Men, Yujie, Christoffersen, Kirsten Seestern

“…Due to its capability for producing various microcystins, Microcystis aeruginosa is recognized as one of the most toxic, bloom-forming cyanobacteria. In this…”
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Life History Response of Daphnia magna to a Mixotrophic Golden Alga, Poterioochromonas sp., at Different Food Levels by Zhang, Xue, Hu, Hong-Ying, Warming, Trine Perlt, Christoffersen, Kirsten Seestern

“…The toxicity of Poterioochromonas to Daphnia magna was investigated at different food ( Scenedesmus acutus ) levels. Poterioochromonas alone of 0.4–20 mg C L…”
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