Zobrazeno 1 - 10
of 97
pro vyhledávání: '"R.M.M. Roijackers"'
Publikováno v:
Aquatic Ecology; December 1981, Vol. 15 Issue: 3 p200-202, 3p
Autor:
Marten Scheffer, Edwin T. H. M. Peeters, Jordie J. C. Netten, Sarian Kosten, P.G.M. Heuts, Bastiaan G. van Zuidam, Egbert H. van Nes, R.M.M. Roijackers, Jeroen P. van Zuidam
Publikováno v:
Journal of Applied Ecology, 50(3), 585-593
Journal of Applied Ecology 50 (2013) 3
Journal of Applied Ecology 50 (2013) 3
Dominance of free-floating plants such as duckweed is undesirable as it indicates eutrophication. The objectives of this study are to investigate whether the onset of duckweed dominance is related to weather conditions by analysing field observations
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f86a7461573b50050fae5071ce361693
https://doi.org/10.1111/1365-2664.12066
https://doi.org/10.1111/1365-2664.12066
Autor:
R.M.M. Roijackers, Marten Scheffer, Gábor Borics, Beata Waluto, Péter T. Nagy, Sandor Szabo, Luis Zambrano, Mihály Braun
Publikováno v:
Freshwater Biology, 55(3), 681-690
Freshwater Biology 55 (2010) 3
Freshwater Biology 55 (2010) 3
SUMMARY 1. The asymmetric competition for light and nutrients between floating and submerged aquatic plants is thought to be key in explaining why dominance by either of these groups can be stable and difficult to change. 2. Although the shading effe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::096400ed4e862fff0f86ebbaa7c0c44b
https://doi.org/10.1111/j.1365-2427.2009.02308.x
https://doi.org/10.1111/j.1365-2427.2009.02308.x
Publikováno v:
Limnology and Oceanography: Methods. 6:223-229
The aim of this research was to explore the possibility to use inexpensive open-top chambers (OTCs) as passive artificial warming devices in experimental aquatic studies. Our results show that OTCs give a significant temperature increase compared wit
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::acaf2363b87d6b016c4a1e2b8f79e949
https://doi.org/10.4319/lom.2008.6.223
https://doi.org/10.4319/lom.2008.6.223
Autor:
Torben L. Lauridsen, Christian Skov, E. H. R. R. Lammens, Egbert H. van Nes, R.M.M. Roijackers, Erik Jeppesen, Rob Portielje, Martin Søndergaard
Publikováno v:
Journal of Applied Ecology. 44:1095-1105
1. Eutrophication constitutes a serious threat to many European lakes and many approaches have been used during the past 20–30 years to improve lake water quality. Results from the various lake restoration initiatives are diverse and the long-term
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2f67faa3c73f9cf4f627e6221ceb7b58
https://doi.org/10.1111/j.1365-2664.2007.01363.x
https://doi.org/10.1111/j.1365-2664.2007.01363.x
Publikováno v:
Aquatic Botany, 84(2), 171-175
Aquatic Botany 84 (2006) 2
Aquatic Botany 84 (2006) 2
Temperature is one of the most important factors determining growth rates of free-floating macrophytes in the field. To analyse and predict temperature dependent growth rates of these pleustophytes, modelling may play an important role. Several equat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1f9c4cab045417c686b8bf5f71e9f8fb
https://doi.org/10.1016/j.aquabot.2005.09.004
https://doi.org/10.1016/j.aquabot.2005.09.004
Publikováno v:
Freshwater Biology 51 (2006) 1
Freshwater Biology, 51(1), 110-116
Freshwater Biology, 51(1), 110-116
1. Wilf & Labandeira (1999)suggested that increased temperatures because of global warming will cause an increase in herbivory by insects. This conclusion was based on the supposed effect of temperature on herbivores but did not consider an effect of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9f60fd40196b0ce6209ff98a53093c05
https://doi.org/10.1111/j.1365-2427.2005.01479.x
https://doi.org/10.1111/j.1365-2427.2005.01479.x
Publikováno v:
Archiv für Hydrobiologie, 164(1), 127-140
Archiv für Hydrobiologie 164 (2005) 1
Archiv für Hydrobiologie 164 (2005) 1
Duckweed (Lemna gibba) growth was found to be strongly reduced by unicellular green algae (Scenedesmus conspicua, Chlorella sp., Chlamydomonas sp.) in indoor experiments. These algae reduced N, P, Fe and Mn concentrations of the medium drastically, m
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2ab1aaeb52fccee84a02d9180e1a3711
https://doi.org/10.1127/0003-9136/2005/0164-0127
https://doi.org/10.1127/0003-9136/2005/0164-0127
Autor:
R.M.M. Roijackers, Edwin T. H. M. Peeters, Miquel Lürling, B.T. Nga, Truong Trong Nghia, Marten Scheffer
Publikováno v:
Aquaculture, 246(1-4), 455-465
Aquaculture 246 (2005) 1-4
Aquaculture 246 (2005) 1-4
The hypothesis that crowding effects through physical and/or chemical interference may be an important factor in lowering the chance of survival and reducing growth of Penaeus monodon post-larvae under high stocking densities was tested. To separate
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9b0d9e5f6f5d47cfad0af2b3d6c158ee
https://doi.org/10.1016/j.aquaculture.2005.02.026
https://doi.org/10.1016/j.aquaculture.2005.02.026
Autor:
H. Wolters, Anthonie D. Buijse, R.M.M. Roijackers, Frank C. J. M. Roozen, Marten Scheffer, Hugo Coops, G. J. Van Geest
Publikováno v:
Hydrobiologia, 539, 239-248. Springer Netherlands
Hydrobiologia, 539(1), 239-248
Hydrobiologia 539 (2005) 1
Hydrobiologia, 539(1), 239-248
Hydrobiologia 539 (2005) 1
The characteristic ecology of floodplain lakes is in part due to their relatively strong water-level fluctuations. We analyzed the factors determining water-level fluctuations in 100 floodplain lakes (during non-flooded conditions) in the active floo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2ce73d4a4e681ebe14e0accf5d312edf
https://doi.org/10.1007/s10750-004-4879-y
https://doi.org/10.1007/s10750-004-4879-y