Results 61 to 70 of about 2,529 (177)

Low methane emissions from nutrient‐rich former river channels in a hydrologically managed dryland delta

Limnology and Oceanography Letters, Volume 11, Issue 3, May 2026.
Abstract Anthropogenic stresses in dryland regions can alter hydrology, salinization, and biogeochemical processes. How these pressures influence methane (CH4) cycling and emissions from aquatic ecosystems remains poorly understood. Over the course of 1 year, we measured diffusive and ebullitive CH4 emissions from resacas—shallow, hydrologically ...
Siena Stassi, Jude A. Benavides, Chu‐Lin Cheng, Marcelo Gomes da Silva, Nicholas E. Ray, Nathan Barros, Rafael M. Almeida   +6 more
wiley   +1 more source

Which Way to the Brave New Baylands?

San Francisco Estuary and Watershed Science, 2016
doi: http://dx.doi.org/10.15447/sfews.2016v14iss1art1<Abstracts are not required to accompany articles in the Essay category. --the Editors of SFEWS>
J. Letitia Grenier
doaj  

Environmental Heterogeneity Predicts Behavioural Diversity in a Widely Distributed Group of Marine Carnivores

Diversity and Distributions, Volume 32, Issue 5, May 2026.
ABSTRACT Aim Environmental heterogeneity shapes species diversity by creating ecological niches (habitat heterogeneity hypothesis). Yet its role in driving behavioural diversity within species remains only partially understood. Behavioural diversity enhances a population's ability to exploit ecological niches and adapt to environmental change, making ...
Jonas F. L. Schwarz, Daniel P. Costa, Rachel R. Holser, Nathan Angelakis, Alastair Baylis, B. Louise Chilvers, Carsten F. Dormann, Shannon L. Fowler, Simon D. Goldsworthy, Robert Harcourt, Luis Hückstadt, Jana Jeglinski, Elizabeth A. McHuron, Clive R. McMahon, Sharon R. Melin, Diego Páez‐Rosas, Svenja Stoehr, Fritz Trillmich, Stella Villegas‐Amtmann, Oliver Krüger   +19 more
wiley   +1 more source

Lag in Effective Population Size Decline Amid Demographic Collapse: A Case Study of the Delta Smelt (Hypomesus transpacificus)

Molecular Ecology, Volume 35, Issue 10, May 2026.
ABSTRACT Effective population size (Ne), census size (Nc) and their ratio (Ne/Nc) are widely used indicators in conservation genetics, yet long‐term empirical data tracking of all three metrics over long time scales in wild populations remains rare. Using monitoring data from 1995 to 2020, we examined temporal dynamics of Ne, Nc and their relationship ...
Amanda J. Finger, Melanie E. F. LaCava, Evan W. Carson, James A. Hobbs, Tien‐Chieh Hung, Matthew L. Nobriga, Leo Polansky, Robin S. Waples   +7 more
wiley   +1 more source

Towards Affordable Wetland Evapotranspiration Monitoring Using the Variance‐Bowen Ratio Method: Insights From Three Contrasting Wetlands

Water Resources Research, Volume 62, Issue 4, April 2026.
Abstract Accurate measurement of evapotranspiration (ET) is essential for sustainable water management. Standard methods such as eddy covariance (EC) are costly, while alternatives such as surface renewal are cheaper but require calibration and complex data processing.
Tianxin “Carlos” Wang, Gabriel B. Senay, Joseph Verfaille, Daphne Szutu, MacKenzie Friedrichs, Jack Eggleston, Dennis Baldocchi   +6 more
wiley   +1 more source

Five decades (1972-2020) of zooplankton monitoring in the upper San Francisco Estuary. [PDF]

PLoS One, 2022
Bashevkin SM, Hartman R, Thomas M, Barros A, Burdi CE, Hennessy A, Tempel T, Kayfetz K.   +7 more
europepmc   +1 more source

Coupling landscapes and river flows to restore highly modified rivers

Water Resources Research, 2019
Modifications to landscapes and flow regimes of rivers have altered the function, biodiversity, and productivity of freshwater ecosystems globally. Reestablishing geomorphological and hydrological conditions necessary to sustain ecosystems is a central ...
A. A. Whipple, J. H. Viers
doaj   +1 more source

Covariance of Phytoplankton, Bacteria, and Zooplankton Communities Within Microcystis Blooms in San Francisco Estuary. [PDF]

Front Microbiol, 2021
Lehman PW, Kurobe T, Huynh K, Lesmeister S, Teh SJ.   +4 more
europepmc   +1 more source

Impacts of the 2014 severe drought on the Microcystis bloom in San Francisco Estuary

Harmful Algae, 2017
The increased frequency and intensity of drought with climate change may cause an increase in the magnitude and toxicity of freshwater cyanobacteria harmful algal blooms (CHABs), including Microcystis blooms, in San Francisco Estuary, California. As the fourth driest year on record in San Francisco Estuary, the 2014 drought provided an opportunity to ...
Lehman, P.W., Kurobe, T., Lesmeister, S., Baxa, D., Tung, A., Teh, S.J.   +5 more
openaire   +2 more sources

Trends in the Sediment Yield of the Sacramento River, California, 1957–2001

San Francisco Estuary and Watershed Science, 2004
Human activities within a watershed, such as agriculture, urbanization, and dam building, may affect the sediment yield from the watershed. Because the equilibrium geomorphic form of an estuary is dependent in part on the sediment supply from the ...
Scott A. Wright, David H. Schoellhamer
doaj