Results 21 to 30 of about 18,067 (226)

Migratory Songbirds as Potential Ectozoochorous Protist Dispersal Vectors. [PDF]

open access: yesEcol Evol
We demonstrate that migratory songbirds carry diatoms (Bacillariophyta) in their plumage, revealing an unexpected avian–algal association. All seven bird specimens we examined contained diatoms—224 frustules representing 25 genera and 9 orders, primarily freshwater, benthic pennates—some retaining chloroplasts prior to digestion and mounting (implying ...
Fischer SE   +4 more
europepmc   +2 more sources

An inordinate fondness?: the number, distributions, and origins of diatom species [PDF]

open access: yes, 2013
The number of extant species of diatoms is estimated here to be at least 30,000 and probably ca. 100,000, by extrapolation from an eclectic sample of genera and species complexes.
Mann, David G, Vanormelingen, Pieter
core   +1 more source

Análisis de los materiales tipo de Pleurosigma formosum y P. decorum (Pleurosigmataceae, Bacillariophyta) [PDF]

open access: yes, 2014
Los materiales tipo de Pleurosigma formosum W. Smith y P. decorum W. Smith fueron examinados. Ambas especies fueron separadas hasta ahora por el rango de tamaño, la forma de la valva y la densidad de las estrías sobre la base de su análisis con ...
Sar, Eugenia Alicia   +2 more
core   +2 more sources

European diatoms in freshwater habitats near Arctowski Station, King George Island, maritime Antarctica [PDF]

open access: yesPolish Polar Research
Diatom assemblages collected from ponds and pools surrounding Arctowski Station (King George Island, South Shetland Islands) have been investigated. The study focused on two groups of samples: archival samples collected in the 1990s and contemporary ...
Natalia Kochman-Kędziora   +3 more
doaj   +1 more source

Antagonistic and synergistic responses to solar ultraviolet radiation and increased temperature of phytoplankton from cenotes (sink holes) of the Yucatán Peninsula, México [PDF]

open access: yes, 2015
Cenotes (sink holes) are karstic formations characteristic of the Yucatán Peninsula and are the main source of fresh water in the region. Because of their tropical location, they receive high levels of solar radiation and are exposed to high temperatures.
Banaszak, Anastazia T.   +5 more
core   +1 more source

Improved Reference Genome for Cyclotella cryptica CCMP332, a Model for Cell Wall Morphogenesis, Salinity Adaptation, and Lipid Production in Diatoms (Bacillariophyta)

open access: yesbioRxiv, 2020
The diatom, Cyclotella cryptica, is a well-established experimental model for physiological studies and, more recently, biotechnology applications of diatoms. To further facilitate its use as a model diatom species, we report an improved reference genome
Wade R. Roberts   +4 more
semanticscholar   +1 more source

Contribution to the inventory of Iberian diatoms: Encyonema nevadense S.Blanco & al. sp. nov. (Cymbellales, Gomphonemataceae)

open access: yesAnales del Jardín Botánico de Madrid, 2019
The diatom Encyonema nevadense S.Blanco & al. sp. nov. is described as a new species, from epilithic samples collected from a high mountain pond in Sierra Nevada National Park.
Saúl Blanco   +3 more
doaj   +1 more source

Diatoms from small ponds and terrestrial habitats in Deserta Grande Island (Madeira Archipelago) [PDF]

open access: yesBiodiversity Data Journal, 2021
Freshwater diversity from Desertas islands (Madeira archipelago, Portugal) is poorly known, although the islands are protected and became a Natural Reserve in 1995.
Vítor Gonçalves   +4 more
doaj   +3 more sources

Occurrence and toxicity of Microcystis aeruginosa (Cyanobacteria) in the Paraná River, downstream of the Yacyretá dam (Argentina) [PDF]

open access: yes, 2016
Cyanobacteria constitute the main toxin producers in inland water ecosystems and have extensive global distribution. The presence of hepatotoxins in aquatic environments is hazardous to human and animal health; even though the presence and identification
Andrinolo, Dario   +3 more
core   +3 more sources

Respuesta del perifiton de agua dulce al glifosato grado-técnico y dos formulados comerciales [PDF]

open access: yes, 2019
El glifosato es el herbicida más utilizado a nivel mundial. Puede llegar a los cuerpos de agua y afectar a las comunidades microbianas. Comparamos los efectos del glifosato grado técnico y dos formulados comerciales sobre una comunidad periférica de agua
Gonzalez, Daniela   +4 more
core   +1 more source

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