Results 81 to 90 of about 135,022 (273)

Estrutura e dinâmica do fitoplâncton e fatores direcionadores da dominância de cianobactérias em uma lagoa rasa subropical (Lagoa do Peri, SC) [PDF]

open access: yes, 2013
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Ciências Biológicas. Programa de Pós-Graduação em Ecologia, Florianópolis, 2013.Modificações na estrutura da comunidade fitoplanctônica são indicadores sensíveis de alterações ...
Silveira, Mônica Hessel
core  

Interplanetary frontiers: terraforming from an invasion science perspective

open access: yesOikos, EarlyView.
The pursuit of a multi‐planetary existence represents one of humanity's greatest frontiers. If applied justly, it offers an opportunity to extend its civilization's lifespan amid escalating sustainability crises on Earth. One approach increasingly gaining traction is terraforming, a hitherto theoretical ecological and evolutionary experiment revolving ...
Teun Everts   +2 more
wiley   +1 more source

Integrating and assessing metacommunity drivers of ecosystem function and resilience in benthic algal systems

open access: yesOikos, EarlyView.
Understanding the scales and mechanisms by which species composition interacts with ecosystem functions is critical for forecasting the effects of environmental perturbations on ecosystem services. However, the linkages between what regulates the ecosystem functions of dispersal‐capable networks of communities (metacommunities) and what regulates a ...
Thomas P. Shannon, Evelyn E. Gaiser
wiley   +1 more source

Reduction in germination rate and elevation of peroxidase activity in Zea mays>/em> seedlings due to exposure to different microcystin analogues and toxic cell free cyanobacterial crude extract

open access: yesJournal of Applied Botany and Food Quality, 2012
Agricultural crop plants may come into contact with cyanobacterial toxins via spray irrigation with water contaminated with cyanobacteria/cyanobacterial toxins.
S. Pflugmacher
doaj  

Effects of Nutrient Limitation on the Synthesis of N-Rich Phytoplankton Toxins: A Meta-Analysis

open access: yesToxins, 2020
Eutrophication has played a major role in the worldwide increase of harmful algal blooms (HABs). Higher input of key nutrients, such as nitrogen (N) and phosphorus (P), can stimulate the growth of harmful algal species in freshwater, estuarine, and ...
Karen Brandenburg   +4 more
doaj   +1 more source

Resource competition between buoyancy‐regulating and sinking phytoplankton species along a stratified water column

open access: yesOikos, EarlyView.
In temperate lakes, plankton dynamics are closely linked to seasonal shifts in water stratification, following air temperature. The onset of summer stratification typically coincides with the formation of an algal spring bloom in the well‐mixed surface layer (epilimnion).
Arthur F. Rossignol, Sabine Wollrab
wiley   +1 more source

Phosphorus limits the growth of bacterial and eukaryotic primary producers in recently deglaciated High Arctic soils

open access: yesOikos, EarlyView.
Glaciers are receding at unprecedented rates worldwide, exposing large areas of barren sediment that are quickly colonized by microbes. Nutrient availability is a critical driver of early ecosystem succession, but in the High Arctic its role has remained uncertain.
Steven K. Schmidt   +12 more
wiley   +1 more source

Are toxins from harmful algae a factor involved in the decline of harbour seal populations in Scotland? [PDF]

open access: yes, 2015
Firstly this study builds on the investigation initiated by Hall and Frame (2010), which found that Scottish harbour seals were exposed to domoic acid (DA), a potent natural neurotoxin produced by phytoplankton.
Jensen, Silje-Kristin
core   +2 more sources

Toxins of cyanobacteria and microalgae: a challenge for aquatic ecotoxicology

open access: yesBoletim do Observatório Ambiental Alberto Ribeiro Lamego, 2010
The purpose of this review is to draw attention to the growing number of secondary metabolites produced by microorganisms in aquatic environments, specially cyanobacteria and marine microalgae. The first group is a producer of major hepatotoxins, neurotoxins and dermatotoxins.
Manildo Marcião de Oliveira   +3 more
openaire   +2 more sources

Therapeutic Properties and Underlying Mechanisms of Traditional Chinese Medicine in Managing Rheumatoid Arthritis: An Integrative Review of Clinical and Molecular Findings

open access: yesPhytotherapy Research, EarlyView.
The translational research framework integrating TCM for RA. The figure outlines a stepwise framework for the modernization and clinical translation of TCM in RA. Part 1 highlights the inheritance and development of TCM theory, including classical medical texts, traditional herbal knowledge, and syndrome differentiation–based treatment principles. Part
Jianting Wen   +4 more
wiley   +1 more source

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