Aquatic macrophyte taxonomic composition, species abundance and cover determine the physical structure, complexity and heterogeneity of aquatic habitats - the structuring role of macrophytes. These traits influence richness, distribution, feeding and strength of the relationships between food web communities in lakes. The aim of this study was to determine how lakes with different dominating macrophyte ecological groups affect planktonic food web components, emphasising the influence on young of year (YOY) fish and large (≥1 +) fish community. We hypothesised that different dominating macrophyte ecological groups have different structural effects on food web components and YOY fish growth, abundance and feeding. Studied lakes categorised into three different macrophyte ecological groups - lakes dominated by emergent, floating+floating-leaved or submerged vegetation. We found that all dominating ecological groups had a strong influence on plankton communities (except heterotrophic bacterioplankton and nanoflagellates), YOY fish and large fish. Floating-leaved plant dominance was positively related to planktonic food web structure and YOY fish weight, length, abundance and the consumption of zooplankton as a prey of all major species of YOY fishes. Larger fish tended to favour the presence of emergent vegetation. This conclusion has important implications for local managers and conservationists in respect to the maintenance and protection of littoral habitats and fish resources.
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http://dx.doi.org/10.1016/j.aquabot.2022.103571 | DOI Listing |
Monte Carlo Methods Appl
December 2024
Computer Languages and Systems Software Group, Lawrence Berkeley National Laboratory, Berkeley, California, USA.
Correlation coefficients and linear regression values computed from group averages can differ from correlation coefficients and linear regression values computed using individual scores. This observation known as the ecological fallacy often assumes that all the individual scores are available from a population. In many situations, one must use a sample from the larger population.
View Article and Find Full Text PDFThere is strong epidemiological evidence that development of various cancer types is linked to infection with flukes (Platyhelminthes: Trematoda) in Africa, Asia and the Middle East. The exact nature of the mechanism by which cancer is induced by these parasites is unknown. Here, we provide a new hypothesis suggesting that flukes are not the primary cause of cancer but act as vectors of cancer-inducing microbial pathogens.
View Article and Find Full Text PDFFront Psychol
January 2025
i-FOOD Team, IIA-FoodUPV, Universitat Politècnica de València, Valencia, Spain.
Introduction: Due to the current climatic situation of the planet and the increase in concern for the environment, the Universitat Politècnica de València (UPV) aims to be a model for the university community in terms of the preservation of the ecosystem and prevention of the environmental impact caused by daily tasks; thus, aligning itself with the goals of the 2030 Agenda. For this reason, a project has been launched to carry out the green transformation of the UPV toward a university that prioritizes sustainability in all its areas.
Methods: As part of this project, a survey was conducted using anonymous online questionnaires for the student population and employees.
Front Plant Sci
January 2025
Institute of Biodiversity, Hunan Academy of Forestry, Changsha, China.
(L.) Sw. is a valuable ornamental plant in the genus , family Orchidaceae, with high economic and ecological significance.
View Article and Find Full Text PDFFront Plant Sci
January 2025
Aquatic Botany and Microbial Ecology Research Group, Hungarian Research Network (HUN-REN) Balaton Limnological Research Institute, Tihany, Hungary.
Common reed () is a cosmopolitan species, though its dieback is a worldwide phenomenon. In order to assess the evolutionary role of phenotypic plasticity in a successful plant, the values and plasticity of photophysiological traits of were investigated in the Lake Fertő wetlands at 5 sites with different degrees of reed degradation and along a seasonal sequence. On the one hand, along the established ecological degradation gradient, photophysiological traits of changed significantly, affecting plant productivity, although no consistent gradient-type trends were observed.
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