Results 51 to 60 of about 1,042 (173)
Flow Resistance due to Aquatic Vegetation in Streams and Flumes
Ecohydrology, Volume 18, Issue 7, October‐November 2025.ABSTRACT Although several studies regarding flow resistance due to aquatic vegetation for small‐ and full‐scale are available, the scaling of small‐scale results to full‐scale conditions still needs to be investigated. In this paper, a theoretical flow resistance equation for open channels was tested using literature measurements performed for full ...
Alessio Nicosia +3 more
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Turczaninowia, 2018 В статье приводится информация о находках харовых и желто-зеленых водорослей в Челябинской области (Южный Урал, Россия). Материалами для сообщения послужили сборы 2009–2016 гг. Исследованные разнотипные водоемы расположены в лесной и лесостепной ботанико-
E. I. Veisberg, N.A. Isakova
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Water ecological requirements of Characeae taxa in eastern Spain
Notulae Botanicae Horti Agrobotanici Cluj-Napoca, 2023 Presence of Characeae taxa is limited by the existence of clear and oligotrophic waters. Some other chemical water parameters can also influence the distribution of taxa, which can thus be used as ecological bioindicators.
Borja SANZ +2 more
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Disentangling the effects of climate change in a mountain lake through community structure analysis
Limnology and Oceanography, Volume 70, Issue 8, Page 2142-2157, August 2025.Abstract Pressures of climate change may trigger regime shifts in ecosystems. Identifying signs of these pressures before the critical transition remains challenging, and it could be useful to anticipate the regime shift. In this research, while exploiting the case of a lacustrine ecosystem, which passed from an unvegetated, phytoplankton‐dominated ...
Giulia Bertoletti +3 more
wiley +1 more source
, 2023 Nitella heterophylla (A.Braun) A.Braun, Hookers J. Bot. Kew Gard. Misc. 1: 198 (1849) Chara heterophylla A.Braun, Linnaea 17: 113 (1843). Nitella lhotzkyi f. heterophylla (A.Braun) R.D. Wood, Taxon 11: 22 (1962). Type: in fluvio ‘ Adams River’ (Grantham), Western Australia, 7-iii-1841, L.Preiss 1876 (holo: B n.v. [apparently destroyed]; iso:
Casanova, Michelle T., Karol, Kenneth G.
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Molecular Ecology Resources, Volume 25, Issue 6, August 2025.ABSTRACT Amplicon sequencing tools such as metabarcoding are commonly used for thorough characterisation of microbial diversity in natural samples. They mostly rely on the amplification of conserved universal markers, mainly ribosomal genes, allowing the taxonomic assignment of barcodes.
Silke Van den Wyngaert +21 more
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, 2021 Nitella anarthrodactylée Art ISFS: Checklist: 50031 Characeae Nitella Nitella anarthrodactylée Enthält: Nitella capillaris (Krock.) J. Groves & Bull.-Webst. Nitella flexilis (L.) C. Agardh Nitella opaca (Bruzelius) C. Agardh Nitella syncarpa (Thuill.) Chevall.
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MOVEMENTS OF WATER IN CELLS OF NITELLA [PDF]
Journal of General Physiology, 1949 When one end of a Nitella cell (A) is bathed in water and a solution of sucrose is placed at the other (B) we find that water enters at A, travels along inside the cell, and escapes at B. The solutes which cannot pass out through the protoplasm at B remain behind so that the osmotic pressure increases at B and diminishes at A until equilibrium is ...
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Photochemistry and Photobiology, Volume 101, Issue 3, Page 728-745, May/June 2025.White light signals lasting less than 30 s induced rapid drop (1 s) of some Mimosa pudica leaves, resulting from osmocontraction of the pulvinar motor cells (A). An early signal detected after about 5 s is a change in motor cell membrane potential, depending on the wavelength applied (B).
Gabriel Roblin +3 more
wiley +1 more source
A study of the new characteristic charophyte and the classification status
四川大学学报. 自然科学版, 2017 This study was focused on a special charophyte collected from Ya'an, Sichuan. Morphological observation showed that it had two-layer coronal, divided branchlets and no cortex. These were the features of Nitelleae. But there was another feature which hadn’
CHEN Kong-Xiang +5 more
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