Results 51 to 60 of about 3,457 (217)

Las algas del canal olímpico de piragüismo de aguas tranquilas (Barcelona)

open access: yesCollectanea Botanica, 1997
Se ha estudiado la flora algal del Canal de Piragüismo de Aguas Tranquilas durante un año. Se han identificado 90 taxa (20 Cyanophyta, 25 Chlorophyta , 1 Charophyta, 9 Euglenophyta, 31Chrysophyta, 2 Cryptophyta y 2 Pirrophyta).
Joan García   +3 more
doaj   +1 more source

Origin and diversification of Lake Ohrid’s endemic acroloxid limpets: the role of geography and ecology [PDF]

open access: yes, 2016
Background: Ancient Lake Ohrid, located on the Albania-Macedonia border, is the most biodiverse freshwater lake in Europe. However, the processes that gave rise to its extraordinary endemic biodiversity, particularly in the species-rich gastropods, are ...
Albrecht, Christian   +4 more
core   +1 more source

Biological invasions: a global assessment of geographic distributions, long‐term trends, and data gaps

open access: yesBiological Reviews, Volume 100, Issue 6, Page 2542-2583, December 2025.
ABSTRACT Biological invasions are one of the major drivers of biodiversity decline and have been shown to have far‐reaching consequences for society and the economy. Preventing the introduction and spread of alien species represents the most effective solution to reducing their impacts on nature and human well‐being.
Hanno Seebens   +64 more
wiley   +1 more source

Aspectos Tafonômicos de Testudines da Formação Santana (Cretáceo Inferior),Bacia do Araripe, Nordeste do Brasil. [PDF]

open access: yes, 2007
Araripe Basin is worldwide famous by diverse and exquisitely well preserved fossil assemblages in antana Formation. This lithostratigraphic unit is subdivided into three members: Crato, Ipubi and Romualdo.
Gustavo Ribeiro de Oliveira
core   +2 more sources

Spatial distribution of rare and common phytoplankton taxa is controlled by geospatial and physicochemical variables

open access: yesEcosphere, Volume 16, Issue 11, November 2025.
Abstract Phytoplankton are commonly used as an ecological tool in assessing water quality and indicating ecosystem health. The purpose of this study was to explore the effects of geospatial and physicochemical variables on variation in phytoplankton community composition and biodiversity in lakes across the State of Oklahoma.
Jasmine K. Stovall   +7 more
wiley   +1 more source

Life history, development and karyology of Klebsormidium nitens (Klebsormidiales, Charophyta) [PDF]

open access: yes, 2001
Se estudiaron las células vegetativas y reproductivas de Klebsormidium nitens, primera cita para la República Argentina. La identificación de la especie se realizó utilizando caracteres morfológicos, hábito de crecimiento, la forma de apertura de los ...
Leonardi, Patricia Ines   +1 more
core  

Metabolic Plasticity and Abiotic Stress Adaptation in Freshwater Algae During Phycoremediation of Polluted River Water

open access: yesPlant-Environment Interactions, Volume 6, Issue 5, October 2025.
ABSTRACT Freshwater algae possess remarkable metabolic flexibility and environmental resilience, enabling them to adapt to polluted habitats and contribute to ecological restoration. This study investigates the physiological and biochemical responses of five green algal taxa: Monoraphidium sp., Scenedesmus sp., Nephrocytium sp., Chlorococcum sp., and ...
Dharmendra Kumar   +4 more
wiley   +1 more source

Phylogeny and Ontogeny of Charophyta: ABSTRACT [PDF]

open access: yesAAPG Bulletin, 1968
The oldest known occurrence of the Charophyta is from the Devonian of eastern Europe. Devonian and Lower Mississippian rocks also contain the most diverse types of charophytes but their pre-Devonian ancestors are still unknown. During the Devonian the dextrally spiralled forms of the Trochiliscaceae increased in size, the number of spiral units ...
openaire   +1 more source

Extending monitoring with sediment archive approaches: Comparison of biomonitoring, metabarcoding, and biomarkers to assess past phytoplankton dynamics

open access: yesLimnology and Oceanography: Methods, Volume 23, Issue 8, Page 578-593, August 2025.
Abstract Sedimentary archives can provide valuable insights into the study of anthropogenic impacts on marine and limnic ecosystems over centennial and millennial timescales, potentially extending the temporal breadth of observation‐based biomonitoring.
Juliane Romahn   +7 more
wiley   +1 more source

Twenty- five new records of algae in eight artificial fish ponds in Erbil

open access: yesZanco Journal of Pure and Applied Sciences, 2019
This study was carried out from March to October 2018 in eight artificial fish ponds within Erbil province Kurdistan region of Iraq which is the first work in such ponds.
Farhad H. Aziz, Sara A. Yasin
doaj   +1 more source

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