Results 161 to 170 of about 28,193 (230)

Challenging trophic position assessments in complex ecosystems: Calculation method, choice of baseline, trophic enrichment factors, season and feeding guild do matter: A case study from Marquesas Islands coral reefs. [PDF]

Ecol Evol
Letourneur Y, Fey P, Dierking J, Galzin R, Parravicini V.   +4 more
europepmc   +1 more source

Environmental and temporal factors affecting record white‐tailed deer antler characteristics in Ontario, Canada

The Journal of Wildlife Management, EarlyView.
Antler characteristics are influenced by a combination of genetics, age, and environmental factors, notably habitat quality and resource availability. In this study, we explored how diverse environmental factors, including climate and land cover composition, affect antler size, tine configuration, and the distribution of record‐scoring white‐tailed ...
Brooklyn S. Cars, Joseph M. Northrup, Keith Beasley, Paul Beasley, Kevin Beasley, Aaron B. A. Shafer   +5 more
wiley   +1 more source

Role of COL1A1 and CD44 in Modulating JAK1/STAT3‐Mediated Autophagy for Spinal Cord Injury Recovery

The Kaohsiung Journal of Medical Sciences, EarlyView.
ABSTRACT Spinal cord injury (SCI) is a severe trauma to the central nervous system that often leads to motor and sensory dysfunction in patients, severely affecting their quality of life. Autophagy plays a role in the pathological process of SCI, but the specific mechanism of autophagy in this case is unknown.
Chun‐Lei Li, Qian Zhang, Li Fang, Ling‐Yun Zhou   +3 more
wiley   +1 more source

Placental‐Derived Connective Tissue Matrix Mediates Murine Recurrent Laryngeal Nerve Regeneration

The Laryngoscope, EarlyView.
Placentally derived connective tissue matrix (pd‐CTM) innately contains various neurotrophic, angiogenic, anti‐inflammatory, and tissue remodeling cytokines. In this mouse model of unilateral vocal fold paralysis, we investigate its effects on recurrent laryngeal nerve (RLN) regeneration and reinnervation of the right thyroarytenoid (TA) muscle after ...
Sunjay Anekal, Ananya Tadikonda, Gabriel Sobczak, Lena W. Chen, Aditya Bhatt, Troy Wesson, Patrick R. Finnegan, Stacey Halum   +7 more
wiley   +1 more source

Aquatic omnivores shift their trophic position towards increased plant consumption as plant stoichiometry becomes more similar to their body stoichiometry. [PDF]

PLoS One, 2018
Zhang P, van den Berg RF, van Leeuwen CHA, Blonk BA, Bakker ES.   +4 more
europepmc   +1 more source

The IceShark, an effective method for sampling plankton under sea ice

Limnology and Oceanography: Methods, EarlyView.
Abstract Seasonal sea ice plays a crucial role in shaping coastal ecosystem dynamics throughout the circumpolar region. Of particular interest to oceanographers is the ice‐ocean interface which functions as a multidimensional habitat, supporting both sympagic algae and pelagic phytoplankton in the under‐ice surface waters.
Eleanor A. Barry, Susan Ziegler, Joey Angnatok, Emma J. Harrison, Uta Passow   +4 more
wiley   +1 more source

Chemical stabilization of glass microfiber type F filters for measuring particulate phosphorus using the extra high‐temperature dry combustion method

Limnology and Oceanography: Methods, EarlyView.
Abstract Accurate quantification of particulate phosphorus is critical for understanding biogeochemical processes in aquatic systems. Extra high‐temperature dry combustion at 800°C improves phosphorus recovery by ~ 11% compared to lower‐temperature methods.
Ying‐Yu Hu, Andrew J. Irwin, Zoe V. Finkel   +2 more
wiley   +1 more source

Comparison between fluorometry and microscopy‐based phytoplankton assessments in the Laurentian Great Lakes

Limnology and Oceanography: Methods, EarlyView.
Abstract Photosynthetic pigment fluorescence is commonly used in limnology and oceanography as a proxy for phytoplankton biomass. Fluorometry has been used to detect subsurface algal blooms, characterize dynamics of the deep chlorophyll layer, and to provide greater vertical resolution to phytoplankton monitoring.
Katya E. Kovalenko, Euan D. Reavie, Christopher T. Filstrup, Anne Scofield, Meaghan Lightfoot, Erica Yang, Elizabeth E. Alexson   +6 more
wiley   +1 more source

Applicability of the steady‐state oxygen stable isotope method for estimating metabolism in low‐productivity Arctic lakes

Limnology and Oceanography: Methods, EarlyView.
Abstract Metabolism is a key property of lake ecosystem functioning, but logistical challenges make it difficult to estimate across remote regions. The steady‐state dissolved oxygen (DO) stable isotope method (18O method) estimates metabolism from discrete water samples and thus enables large‐scale surveys.
Fredrik Alriksson, Marcus Klaus, Cristian Gudasz, Matthew Bogard, Gerard Rocher‐Ros, Dominic Vachon, Jan Karlsson   +6 more
wiley   +1 more source

Alzheimer's Biomarkers and Visuospatial Cognition in Parkinson's Disease: Modification by α‐Synuclein and Mediation of Age Effects

Movement Disorders Clinical Practice, EarlyView.
Abstract Background Visuospatial deficits in Parkinson's disease (PD) often precede dementia and complicate daily functioning. Alzheimer's disease (AD) pathology and α‐synuclein aggregation frequently co‐occur in PD, but their combined impact on cognition is unclear.
David Ledingham, Sahana Sathyanarayana, Charlotte B. Stewart, Robyn Iredale, Victoria Foster, Debra Galley, Meher Lad, Mark R. Baker, Nicola Pavese   +8 more
wiley   +1 more source