نتایج جستجو برای: ceratophyllum demersum

تعداد نتایج: 189  

Journal: :Water 2022

In this study, we aimed to identify the macrophyte pattern and diversity under exposure substantial hydromorphological degradation in rivers, taking into account water quality factor. The study was based on 190 small medium lowland rivers Poland that had experienced channel alterations. number of taxa identified (153 species) consistent with natural/seminatural average species richness for surv...

2008
Sabine Hilt Elisabeth M. Gross

Inhibition of phytoplankton by allelochemicals released by submerged macrophytes is supposed to be one of the mechanisms that contribute to the stabilisation of clear-water states in shallow lakes. The relevance of this process at ecosystem level, however, is debated because in situ evidence is difficult to achieve. Our literature review indicates that allelopathically active species such as My...

Journal: :Journal of evolutionary biology 2003
T Borsch K W Hilu D Quandt V Wilde C Neinhuis W Barthlott

Recent contributions from DNA sequences have revolutionized our concept of systematic relationships in angiosperms. However, parts of the angiosperm tree remain unclear. Previous studies have been based on coding or rDNA regions of relatively conserved genes. A phylogeny for basal angiosperms based on noncoding, fast-evolving sequences of the chloroplast genome region trnT-trnF is presented. Th...

2016
Shu-Ying Zhao Ling-Yun Chen Yan-Li Wei Qing-Feng Wang Michael L. Moody

Ranunculus L. is an early diverging clade in the Angiosperm phylogeny. The split between terrestrial and aquatic/semi-aquatic lineages within the genus occurred within 20 Ma (Emadzade and Horandl, 2011), which is much younger than for some well-known aquatic lineages such as Ceratophyllum and Potamogeton. Ranunculus sceleratus Linn. is a semi-aquatic plant commonly found in paddy fields, stream...

2004
Binhe Gu Mark V. Hoyer

Gu, B. and M.V. Hoyer. 2005. Community structure and environmental conditions in Florida shallow lakes dominated by submerged aquatic vegetation. Lake and Reserv. Manage. 21(4):403-410. Florida inland waters are dominated by shallow lakes, many of which support the growth of submerged aquatic vegetation (SAV). We examined the species composition and selected environmental variables of SAV-domin...

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