Results 151 to 160 of about 36,626 (269)

Phytoplankton and Temperature Control Seasonal Dynamics of Greenhouse Gases in a Large River

Journal of Geophysical Research: Biogeosciences, Volume 131, Issue 5, May 2026.
Abstract Rivers are a dynamic source of greenhouse gases (GHGs), yet the temporal variability and controlling mechanisms of their CO2:CH4:N2O ratios remain poorly constrained. We monitored the three GHGs in the German river Elbe over 5 years at two sites to identify seasonal controls as well as travel time related and site‐specific mechanisms driving ...
Matthias Koschorreck, Claudia Schütze, Uta Ködel, Ingeborg Bussmann, Norbert Kamjunke   +4 more
wiley   +1 more source

Small Ponds as Carbon Emission and Burial Hotspots in Lowland Agricultural Landscape

Earth's Future
Clarifying carbon (C) cycling in small ponds is vital for understanding C transport in lowland agricultural landscape. Quantifying C flux is crucial for learning C cycling, but is challenging due to its complex cycling and significant impacts from ...
Yulai Ji, Jiacong Huang, Qing Zhu, Shuailong Feng, Shuai Zhang, Shaohua Lei, Qitao Xiao, Wenqing Shi, Junfeng Gao   +8 more
doaj   +1 more source

Highly Variable Methane Production and Fluxes in a Hypereutrophic Lake Despite Uniform Bathymetry and Sediment Chemistry

Journal of Geophysical Research: Biogeosciences, Volume 131, Issue 5, May 2026.
Abstract Hypereutrophic lakes support high sedimentation of labile organic carbon, promoting sediment anoxia and GHG potential production. Lakes with complex morphometry exhibit extensive spatial heterogeneity in sediment methane (CH4) and carbon dioxide CO2 dynamics. We wondered: do lakes with uniform bathymetry show low spatial variation in sediments'
Emma Polauke, Jonas Stage Sø, Kaj Sand‐Jensen, Kasper Reitzel, Theis Kragh   +4 more
wiley   +1 more source

Entrainment of Muddy Sediment From Immobile Gravel River Beds

Water Resources Research, Volume 62, Issue 5, May 2026.
Abstract This study examines the transport of fine muddy sediment through a gravel‐bed reach. In such cases, mud is often conceptualized as a size fraction that interacts little with the bed (i.e., as washload). However, previous studies have shown that mud can deposit within gravel beds.
Brayden Schiller, Kyle Strom
wiley   +1 more source

On traits matching and the modular organization of food web and occurrence networks

Journal of Animal Ecology, Volume 95, Issue 5, Page 837-850, May 2026.
What mechanisms shape ecological networks? In Paraná River piscivores, species traits and abundance scaling promote modular structures. Our findings reveal how communities self‐organize and highlight the conditions needed to sustain them. Abstract Modularity and nestedness have been observed recurrently across different ecological networks, including ...
Dalmiro Borzone Mas, Pablo A. Scarabotti, Pablo A. Vaschetto, Patricio Alvarenga, Martin Vazquez, Matías Arim   +5 more
wiley   +1 more source

Estimating responses of marine benthic communities to reduced nutrient loading using process‐based and statistical modelling

Journal of Applied Ecology, Volume 63, Issue 5, May 2026.
Our framework links policy targets (achieving good ecological status) and actions (nutrient emission reductions) to realized biodiversity benefits. The approach also supports the optimal placement of monitoring sites under different nutrient abatement scenarios.
Antti Takolander, Louise Forsblom, Elina Miettunen, Jonna Piiparinen, Niko Kallio, Janne Ropponen, Markku Viitasalo, Elina A. Virtanen, Vivi Fleming   +8 more
wiley   +1 more source

Integrating ecological feedbacks across scales and levels of organization

Ecography, Volume 2026, Issue 5, May 2026.
In ecosystems, species interact in various ways with other species, and with their local environment. In addition, ecosystems are coupled in space by diverse types of flows. From these links connecting different ecological entities can emerge circular pathways of indirect effects: feedback loops.
Benoît Pichon, Sonia Kéfi, Nicolas Loeuille, Ismaël Lajaaiti, Isabelle Gounand   +4 more
wiley   +1 more source

Water availability and land‐use shape the diversity of Odonata in the Middle East

Insect Conservation and Diversity, Volume 19, Issue 3, Page 621-633, May 2026.
Odonata diversity in the Middle East depends on the availability of long‐lasting waters, emphasizing the importance of preserving stable aquatic habitats for biodiversity conservation under climate change‐driven droughts. Agricultural expansion is associated with increased Odonata species richness, but overall trait diversity remains limited ...
Zohreh Eslami Barzoki, Jonathan Chase
wiley   +1 more source

Drought Intensity, Timing, and Reproductive Strategy Drive Submerged Macrophyte Resilience. [PDF]

Plants (Basel)
He Y, Liu P, Zhang C, Wang Z, Zhang X, Guo K, Zhang Y, Lei J, Zhou J, Zeng Q, Lu C, Lei T, Wen L, Lei G.   +13 more
europepmc   +1 more source

Aspects of the Histopathology of Clarias gariepinus Infected With the Camallanid Parasite Procamallanus (Procamallanus) pseudolaeviconchus Moravec and Van As, 2015

Journal of Fish Diseases, Volume 49, Issue 5, May 2026.
ABSTRACT Histopathological studies of infections with the nematode Procamallanus (Procamallanus) pseudolaeviconchus Moravec and Van As, 2015, an intestinal parasite of Clarias gariepinus (Burchell, 1822), are scarce. The current study describes histopathological changes in the stomach of C. gariepinus infected with P.
Thabo Kenneth Matea, Annemariè Avenant‐Oldewage   +1 more
wiley   +1 more source