Results 31 to 40 of about 2,084 (178)

Food web architecture and basal resources interact to determine biomass and stoichiometric cascades along a benthic food web. [PDF]

PLoS ONE, 2011
Understanding the effects of predators and resources on primary producers has been a major focus of interest in ecology. Within this context, the trophic cascade concept especially concerning the pelagic zone of lakes has been the focus of the majority ...
Rafael D Guariento, Luciana S Carneiro, Adriano Caliman, João J F Leal, Reinaldo L Bozelli, Francisco A Esteves   +5 more
doaj   +1 more source

The 5T Paradox of Triclosan: From Toiletries to Toxic Trash, a Growing Threat to Humanity

Environmental Toxicology, EarlyView.
ABSTRACT Triclosan (TCS) persists as a contaminant of concern in the Anthropocene, despite regulatory actions. Environmental dissemination continues through wastewater effluents, biosolid application, and improper disposal practices. This narrative review synthesizes current evidence regarding triclosan's environmental fate, transformation pathways ...
Temitope Aribigbola, Mauro Ricardo Souza da Luz, Sunday Amos Onikanni, Marjorie Dardis Murucci, Oluwatosin Stella Olayinka, Rodrigo Soares Fortunato, Rômulo Sperduto Dezonne, Omolola Esther Amos, Sara Gemini Piperni, Denise Pires de Carvalho, Leandro Miranda‐Alves   +10 more
wiley   +1 more source

Temporal community change in stream ecosystems varies by assemblage across US climates

Functional Ecology, EarlyView.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Ecosystem properties are temporally dynamic. Temporal variability has been shown to decrease with increasing levels of biological organization (i.e. from population to community and ecosystem levels).
Megan C. Malish, Stephen C. Cook, Mariana Perez Rocha, Albert Ruhí, Michael T. Bogan, Thomas M. Neeson, Daniel C. Allen   +6 more
wiley   +1 more source

Comparison of Periphyton Biomass on Coconut Coir and Bamboo Poles as Natural Substrates in Earthen Lined Pond

International Journal of Bio-Resource and Stress Management, 2020
As a first step in assessing the viability of periphyton-based shrimp production in lined pond aquaculture systems, the effects of natural substrates (split bamboo poles and coconut coir) on development of periphyton were evaluated.
A. Anix, Vivek Santhiya, S. Athithan, B. Ahilan   +3 more
doaj  

Cyanobacteria as regulators of methylmercury production in periphyton [PDF]

Science of The Total Environment, 2019
Biotic mercury (Hg) methylation appears to depend on factors such as microbial activity and the concentration and bioavailability of Hg2+ to the Hg-methylating organisms. Recently, the presence of cyanobacteria has been linked with high methylmercury (MeHg) concentrations.
Wilkinson L. Lázaro, Sergi Díez, Andrea G. Bravo, Carolina J. da Silva, Áurea R.A. Ignácio, Jean R.D. Guimaraes   +5 more
openaire   +3 more sources

Invasive goldfish trigger a regime shift in experimental lake ecosystems of varying trophic state

Journal of Animal Ecology, EarlyView.
The pet trade distributes exotic animals around the globe that enrich human lives. However, some pets become pests when released into the wild. This study provides experimental evidence that goldfish will negatively affect native freshwater organisms and ecosystems.
William D. Hintz, Hannah Barrett, Rick A. Relyea   +2 more
wiley   +1 more source

Carbonate sediment production in coastal wetlands: Periphyton contributions and diatom indicators

Ecological Indicators
Coastal ecosystems rapidly transform as sea levels rise faster than ecosystems can build elevation through biological processes that accrete organic matter and inorganic sediment.
Samantha Hormiga, Evelyn E. Gaiser, Michael S. Ross, James W. Fourqurean, Rosario Vidales   +4 more
doaj   +1 more source

Biological invasions disrupt the relationship between size spectrum and trophic interactions in freshwater fish communities

Journal of Animal Ecology, EarlyView.
Our study shows that non‐native species alter the relationship between the size‐spectrum slope and the predator–prey mass ratio (PPMR) in freshwater fish communities by occupying distinct trophic niches. Abstract The size spectrum, which describes the relationship between abundance (or biomass) and body size, is an ataxic approach that can provide ...
Valentin Marin, Gaël Grenouillet, Ignasi Arranz, Julien Cucherousset   +3 more
wiley   +1 more source

Ecological scale mediates nonlinear relationships of animal nutrient excretion with dissolved organic matter

Journal of Animal Ecology, EarlyView.
We show that nutrient excretion by vertebrates and invertebrates varies nonlinearly with dissolved organic matter concentration and composition and by taxonomic rank, with stronger patterns at the individual compared to the community level. Our findings highlight the importance of examining animal‐mediated nutrient cycling across taxa and ecological ...
Sandra Klemet‐N'Guessan, Marina Taskovic, Nolan J. T. Pearce, Marguerite A. Xenopoulos   +3 more
wiley   +1 more source

The Masked Role of Periphyton in Phosphorus Cycling: Mechanistic Insights Under Large‐Scale Hydrologic and Seasonal Variability

Water Resources Research
The role of periphyton in lake phosphorus cycling has long been overlooked or simplified, as water quality models often classify periphyton parameters as non‐sensitive, thereby masking their key roles in phosphorus cycling.
Ruolan Yu, Chen Zhang, Mengfen Liu, Michael T. Brett   +3 more
doaj   +1 more source