Zobrazeno 1 - 10
of 48
pro vyhledávání: '"Esben Astrup Kristensen"'
Autor:
Sofie Gyritia Madsen van't Veen, Joachim Audet, Eti Ester Levi, Brian Kronvang, Søren Erik Larsen, Erik Jeppesen, Esben Astrup Kristensen, Anders Nielsen, Thomas Alexander Davidson, Jane Rosenstand Laugesen, Peter Mejlhede Andersen
Publikováno v:
Open Research Europe, Vol 4 (2024)
The growing use of sensors in fresh waters for water quality measurements generates an increasingly large amount of data that requires quality assurance (QA)/quality control (QC) before the results can be exploited. Such a process is often resource-i
Externí odkaz:
https://doaj.org/article/1816ce689f1c45aaa50948682fe4d1a5
Autor:
Esben Astrup Kristensen, Nikolai Friberg, Emma Göthe, Daniel Graeber, Annette Baattrup-Pedersen, Peter Wiberg-Larsen
Publikováno v:
Göthe, E, Baattrup-Pedersen, A, Wiberg-Larsen, P, Graeber, D, Friberg, N & Astrup Kristensen, E 2017, ' Environmental and spatial controls of taxonomic versus trait composition of stream biota ', Freshwater Biology, vol. 62, no. 2 . https://doi.org/10.1111/fwb.12875
Summary The spatial organisation of biotic communities derives from factors operating at a wide range of spatial and temporal scales. Despite strong scientific evidence of prevalent spatial control of community composition in freshwater ecosystems, l
Autor:
P. B. Kristensen, Tenna Riis, Annette Baattrup-Pedersen, F. Teixeira-de Mello, Erik Jeppesen, Mariana Meerhoff, Giulia Cavalli, Esben Astrup Kristensen, Hans Erik Dylmer, Birgit Olesen
Publikováno v:
Freshwater Science. 35:909-921
Stable-isotope analysis is widely used in aquatic ecosystem studies to evaluate trophic structure and resource dynamics. Because δ15N values vary in freshwater systems, e.g., reflecting variations in land use, suitable baseline indicators must be sp
Autor:
Esben Astrup Kristensen, P. B. Kristensen, Annette Baattrup-Pedersen, Anette Baisner Alnoee, Ivan González-Bergonzoni, Tenna Riis
Publikováno v:
Gonzalez-Bergonzoni, I, Kristensen, P B, Baattrup-Pedersen, A, Astrup Kristensen, E A, Alnøe, A B & Riis, T 2018, ' Riparian forest modifies fuelling sources for stream food webs but not food-chain length in lowland streams of Denmark ', Hydrobiologia, vol. 805, no. 1, pp. 291-310 . https://doi.org/10.1007/s10750-017-3313-1
Several studies have shown that the origin of carbon fuelling food webs in streams depends on riparian cover type. In forested stream sites allochthonous resources fuel food webs, whereas autochthonous resources support biomass in grassland (open-can
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::37ab26e08d48eb164358c9b16b4aa0f5
https://pure.au.dk/portal/da/publications/riparian-forest-modifies-fuelling-sources-for-stream-food-webs-but-not-foodchain-length-in-lowland-streams-of-denmark(237c492c-6cc9-4bc0-9725-6a5fa7f88c88).html
https://pure.au.dk/portal/da/publications/riparian-forest-modifies-fuelling-sources-for-stream-food-webs-but-not-foodchain-length-in-lowland-streams-of-denmark(237c492c-6cc9-4bc0-9725-6a5fa7f88c88).html
Autor:
Jenny Kreuger, Peter Wiberg-Larsen, Jes J. Rasmussen, Nikolai Friberg, Annette Baattrup-Pedersen, Dean Jacobsen, Ursula S. McKnight, Nina Cedergreen, Esben Astrup Kristensen
Publikováno v:
Rasmussen, J J, Wiberg-Larsen, P, Baattrup-Pedersen, A, Cedergreen, N, McKnight, U S, Kreuger, J, Jacobsen, D, Kristensen, E A & Friberg, N 2015, ' The legacy of pesticide pollution: An overlooked factor in current risk assessments of freshwater systems ', Water Research, vol. 84, pp. 25-32 . https://doi.org/10.1016/j.watres.2015.07.021
Rasmussen, J J, Wiberg-Larsen, P, Baattrup-Pedersen, A, Cedergreen, N, McKnight, U S, Kreuger, J, Jacobsen, D, Astrup Kristensen, E A & Friberg, N 2015, ' The legacy of pesticide pollution: An overlooked factor in current risk assessments of freshwater systems ', Water Research, vol. 84, pp. 25-32 . https://doi.org/10.1016/j.watres.2015.07.021
Rasmussen, J J, Wiberg-Larsen, P, Baattrup-Pedersen, A, Cedergreen, N, McKnight, U S, Kreuger, J, Jacobsen, D, Astrup Kristensen, E A & Friberg, N 2015, ' The legacy of pesticide pollution: An overlooked factor in current risk assessments of freshwater systems ', Water Research, vol. 84, pp. 25-32 . https://doi.org/10.1016/j.watres.2015.07.021
We revealed a history of legacy pesticides in water and sediment samples from 19 small streams across an agricultural landscape. Dominant legacy compounds included organochlorine pesticides, such as DDT and lindane, the organophosphate chlorpyrifos a
Autor:
Lasse Glismand, Esben Astrup Kristensen, Hans Thodsen, Brian Kronvang, Pablo Eduardo Quiroga Kolbe, Bjarke Dehli
Publikováno v:
Kristensen, E A, Thodsen, H, Dehli, B, Quiroga Kolbe, P E, Glismand, L & Kronvang, B 2013, ' Comparison of active and passive stream restoration : effects on the physical habitats ', Geografisk Tidsskrift, vol. 113, no. 2, pp. 109-120 . https://doi.org/10.1080/00167223.2013.837634
Modification and channelization of streams and rivers have been conducted extensively throughout the world during the past century. Subsequently, much effort has been directed at re-creating the lost habitats and thereby improving living conditions f
Autor:
Jes J. Rasmussen, Peter Wiberg-Larsen, Nikolai Friberg, Daniel Graeber, Annette Baattrup-Pedersen, Esben Astrup Kristensen
Publikováno v:
Wiberg-Larsen, P, Graeber, D, Baattrup-Pedersen, A, Astrup Kristensen, E, Friberg, N & Rasmussen, J 2016, ' Trait characteristics determine pyrethroid sensitivity in non-standard test species of freshwater macroinvertebrates – A reality check ', Environmental Science & Technology (Washington), vol. 50, no. 10, pp. 4971-4978 . https://doi.org/10.1021/acs.est.6b00315
We exposed 34 species of stream macroinvertebrates, representing 29 families, to a 90 min pulse of the pyrethroid λ-cyhalothrin. For 28 of these species, no pyrethroid ecotoxicity data exist. We recorded mortality rates 6 days post-exposure, and the
Publikováno v:
Kristensen, E A, Baattrup-Pedersen, A & Thodsen, H 2011, ' An evaluation of restoration practises in lowland streams: Has the physical integrity been re-created? ', Ecological Engineering, vol. 37, no. 11, pp. 1654-1660 . https://doi.org/10.1016/j.ecoleng.2011.06.043
Intensive land use by humans has led to severe degradation of streams and rivers, especially in highly industrialised countries and in lowland agricultural areas. Restorations have been conducted with the aim to improve hydromorphological conditions
Autor:
Esben Astrup Kristensen, Gerard P. Closs, Roger G. Young, R. Olley, L.N. Davey, N.A. Deans, T O Bickel, Stephen Eggins
Publikováno v:
New Zealand Journal of Marine and Freshwater Research. 45:395-411
This study examined whether element: Ca ratios within the otoliths of juvenile brown trout could provide accurate trace element signatures for specific natal tributaries, and attempted to match these to trace element natal signatures found within the
Publikováno v:
Kristensen, E A, Baattrup-Pedersen, A & Andersen, H E 2012, ' Prediction of stream fish assemblages from land use characteristics: implications for cost-effective design of monitoring programmes ', Environmental Monitoring and Assessment, vol. 184, no. 3, pp. 1435-1448 . https://doi.org/DOI 10.1007/s10661-011-2052-4
Kristensen, E A, Baattrup-Pedersen, A & Andersen, H E 2012, ' Prediction of stream fish assemblages from land use characteristics : Implications for cost-effective design of monitoring programmes ', Environmental Monitoring and Assessment, vol. 184, no. 3, pp. 1435-1448 . https://doi.org/10.1007/s10661-011-2052-4
Kristensen, E A, Baattrup-Pedersen, A & Andersen, H E 2012, ' Prediction of stream fish assemblages from land use characteristics : Implications for cost-effective design of monitoring programmes ', Environmental Monitoring and Assessment, vol. 184, no. 3, pp. 1435-1448 . https://doi.org/10.1007/s10661-011-2052-4
Increasing human impact on stream ecosystems has resulted in a growing need for tools helping managers to develop conservations strategies, and environmental monitoring is crucial for this development. This paper describes the development of models p