Wasserpflanzengesellschaften im östlichen Niedersachsen (I.)

Weber-Oldecop, Dieter Wilhelm

doi:10.1002/iroh.19700550605

Cited by 27 publications

(8 citation statements)

References 33 publications

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“…The classical Braun-Blanquet method (Weber-Oldecop 1969, Müller 1977, M6riaux 1978 uses cover for estimation of species. In some cases also sociability is given.…”

Section: Historical and Methodological Outunementioning

confidence: 99%

Analysis of Flora and Vegetation in Rivers: Concepts and Applications

Wiegleb¹

1988

Vegetation of Inland Waters

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“…The classical Braun-Blanquet method (Weber-Oldecop 1969, Müller 1977, M6riaux 1978 uses cover for estimation of species. In some cases also sociability is given.…”

Section: Historical and Methodological Outunementioning

confidence: 99%

Analysis of Flora and Vegetation in Rivers: Concepts and Applications

Wiegleb¹

1988

Vegetation of Inland Waters

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“…Its significance in phytosociological work as an indicator species is summarized by Weber-Oldecop (1969) and Podbielkowski and Tomaszewicz (1974). It is readily eaten by grass or amur carp (Ctenopharyngodon idella Val.…”

Section: Namementioning

confidence: 99%

“…)Trin., Sparganium spp., Lemna spp., Nymphaea spp., Hottonia inflata Ell., Pontedaria cordata L., Nuphar variegata L., Butomus umbellatus L. Sagittaria spp., Equisetum fluviatile L., and Myriophyllum spp. (Dore 1954;Weber-Oldecop 1969;Podbielkowski and Tomaszewicz 1974;Catling and Dore 1982;Cook and Lüönd 1982;Lumsden and McLachlin 1988 For personal use only.…”

Section: Habitat (A) Climatic Requirements-with Its Wide Eurasian Dismentioning

confidence: 99%

The biology of Canadian weeds. 124. Hydrocharis morsus-ranae L.

Catling¹,

Mitrow²,

Haber³

et al. 2003

Can. J. Plant Sci.

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Catling, P. M., Mitrow, G., Haber, E., Posluszny, U. and Charlton, W. A. 203. The biology of Canadian weeds. 124. Hydrocharis morsus-ranae L. Can. J. Plant Sci. 83: 1001-1016. European frog-bit (Hydrocharis morsus-ranae L.), a free-floating, stoloniferous aquatic, is native to Europe and parts of Asia and Africa. It was discovered in Canada in 1932 in Ottawa, but earlier introduction is possible. By 1955 its North American distribution extended from Ottawa to Montreal. By 1980 it had extended southwest to Lake Ontario and northeast to Quebec City. Recently it has spread throughout much of the central and southwestern parts of southern Ontario, and further into northern New York and Vermont and eastern Michigan. The maximum rate of spread has been 15.6 km yr -1 . Reproduction by seeds is rarely reported but vegetative reproduction is very important in spread and colonization. In the fall, turions separate from the plant, sinking to the bottom where they overwinter. In the spring, these turions grow into small floating rosettes. Extremely rapid stoloniferous growth during the summer months results in the formation of large masses of interlocking plants that diminish native submerged aquatic plant communities by reducing available light. It is also of importance in limiting water flow in irrigation systems and restricting water traffic, thereby hindering recreational activity. Management has been largely mechanical. Hydrocharis morsus-ranae is a food plant for several water birds, rodents, fish and insects.

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“…Ranunculus penicillatuslike plants have been recognized for the first time in north German waters by Weber-Oldecop (1969). However, he considered them together with R. peltatus, which was also done by Wiegleb (1979 occur only in one river system in Schleswig-Holstein, even though elsewhere strains of R. penicillatus can be found that produce floating leaves only occasionally, moreover, resembling R. calcareus morphologically a great deal.…”

Section: Ranunculus Penicillatus S1mentioning

confidence: 98%

“…One example is the Callitricho-Myriophylletum, which in Weber- Oldecop (1969), and especially in Wiegleb (1979) comprises Ranunculus peltatus-dominated relevbs partly without Callitriche or Myriophyllum. Regarding higher units, Neuh~iusl (1959) proposed the name Ranunculionfluitantis for running water communities.…”

Section: Introductionmentioning

confidence: 99%

The occurrence of communities with species of Ranunculus subgenus Batrachium in central Europe ? preliminary remarks

Wiegleb

Herr

1985

Vegetatio

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A short outline of the history of the description of Batrachium communities with special regard to taxonomic reliability is given. Own investigations concern firstly the distribution of Batrachium taxa in Lower Saxony (north Germany). Some taxonomical problems are discussed. The Batrachium species are classified with regard to growth form into two structural groups and the different distribution of these groups within a drainage area is mentioned. The problems arising from the classification of the communities dominated by small Batrachium species with floating leaves are discussed in more detail using a distribution map of characteristic and associated species. With regard to a wider geographical area (central Europe), 3 types of Batrachium communities are distinguished and characterized floristically. The great complexity of the problem is pointed out. Finally, the phytosociological behaviour of the 7 most frequent Batrachium species is discussed with special reference to the different types of waters that are colonized.

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Wasserpflanzengesellschaften im östlichen Niedersachsen (I.)

Abstract: Water Plant Communities in Eastern Lower Saxony (I.)

Cited by 27 publications

References 33 publications

Analysis of Flora and Vegetation in Rivers: Concepts and Applications

Analysis of Flora and Vegetation in Rivers: Concepts and Applications

The biology of Canadian weeds. 124. Hydrocharis morsus-ranae L.

The occurrence of communities with species of Ranunculus subgenus Batrachium in central Europe ? preliminary remarks

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