Results 101 to 110 of about 103,581 (321)

Long-term dynamic patterns and diversity of phytoplankton communities in a large eutrophic river (the case of River Danube, Hungary) [PDF]

open access: yes, 2010
In this paper we present the composition, seasonal dynamics and fluctuations in diversity of the phytoplankton in the Danube River over 24 years. Weekly samplings were conducted at one section of the river at Göd, in the 1669 river kilometer segment ...
Gimesi , László   +5 more
core   +1 more source

Cell death in lake phytoplankton communities

open access: yesFreshwater Biology, 2006
Summary1. The fraction of living and dead phytoplankton cells in seven Florida lakes was assessed by using the cell digestion assay, a non‐staining membrane permeability test. The cell digestion assay is an effective method to analyse cell viability in complex natural phytoplankton communities. 2.
Agustí, Susana   +4 more
openaire   +2 more sources

Seasonal variations in planktonic food web structure affect stability by shifting the distribution of energy fluxes

open access: yesOikos, EarlyView.
Seasonality in temperate ecosystems shapes species phenology, influencing interactions and food web structure. Variations in species richness and biomass affect trophic interaction strength, a crucial factor for community stability, which can be assessed through energy fluxes – an essential indicator of ecosystem function.
Simon Bazin   +4 more
wiley   +1 more source

Phytoplankton Community Composition Retrieval From Space

open access: yes
Phytoplankton community composition (PCCs) - also referred to as functional groups play a key role in ocean biogeochemical cycling, climate regulation, and marine ecosystem dynamics. Accurate quantification of these groups from satellite ocean color data remains challenging due to spectral similarities among phytoplank- ton types and the limitations of
Susanne Elizabeth Craig, Erdem Karakoylu
openaire   +1 more source

Marine trophic architecture and hidden ecological connections in the Strait of Magellan: keystone species and ecosystem resilience

open access: yesOikos, EarlyView.
Understanding the ecological implications of species coexistence is central to biodiversity studies and to identify environmental and anthropogenic drivers of ecosystem dynamics, where ecological network analysis offers valuable insights. This study examines the complexity, structure, and potential responses to disturbances of the Strait of Magellan's ...
Claudia D. Andrade   +4 more
wiley   +1 more source

IDENTIFICATION OF RELEVANT TIME-SCALES IN NONEQUILIBRIUM COMMUNITY DYNAMICS - CONCLUSIONS FROM PHYTOPLANKTON SURVEYS [PDF]

open access: yes, 1994
This paper is a reflection on J.B. Wilson's (1990) publication which presents an attempt to understand the development of terrestrial plant communities of New Zealand against twelve different explanations of Hutchinson's Paradox.
Padisák, Judit
core  

Demystifying fungal systematics: A gateway to fungal literacy and societal/ecological relevance through familiar species

open access: yesPLANTS, PEOPLE, PLANET, EarlyView.
Fungal systematics can feel overwhelming given the vast species diversity within this kingdom, with numerous subgroups at every taxonomic rank. This often creates a disconnect between the undertsnidng of fungal taxonomic diversity and their societal relevance.
Anna Vaiana   +4 more
wiley   +1 more source

Use of ordination and classification procedures to evaluate phytoplankton communities during Superflux II [PDF]

open access: yes
Cluster analysis and an ordination procedure were performed on two data matrices to investigate real and environmental spatial relationships. Multiple regression analysis was used to relate the measured environmental variables to the phytoplankton ...
Marshall, H. G., Rutledge, C. K.
core   +1 more source

Evaluation of climate change scenarios based on aquatic food web modelling [PDF]

open access: yes, 2008
In the years 2004 and 2005 we collected samples of phytoplankton, zooplankton and macroinvertebrates in an artificial small pond in Budapest. We set up a simulation model predicting the abundance of the cyclopoids, Eudiaptomus zachariasi and Ischnura ...
Hufnagel, Levente   +3 more
core  

The Community Concept and the Phytoplankton

open access: yesMarine Ecology Progress Series, 1981
The community concept of terrestrial ecology is examined with particular reference to its application to phytoplankton dlstrlbutlon. I t IS suggested that it is more appropriate to regard phytoplankton distribution as entirely probabilistlc, comparable to a local situation in a tropical rain forest.
WT Williams, JS Bunt, RD John, DJ Abel
openaire   +1 more source

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