Results 81 to 90 of about 1,859 (253)

Forensic Hydraulic Analysis of Floodplain Connectivity Driven by Historical Beaver Dams in Colorado Headwater Streams

River Research and Applications, EarlyView.
ABSTRACT As ecosystem engineers, beavers (Castor canadensis) modify river corridor form through dam building. When beavers are removed from a river corridor, their unmaintained dams wash out, altering the stream's hydrologic regime. The assumption that beaver dams increase floodplain connectivity is frequently presumed but has not been directly ...
Kayla Schultz, Ryan R. Morrison, Sara Rathburn, Connor Mertz, Nicholas Christensen   +4 more
wiley   +1 more source

Too Hot, Too Cold, Just Right: Thermal Modulating Capacity of Different Sources of Groundwater Discharge to Salmon‐Bearing Streams

River Research and Applications, EarlyView.
ABSTRACT Groundwater discharge plays a key role in maintaining habitat suitability for cold‐water fish by generating streamflow and modulating temperatures. However, the thermal influence depends on groundwater source depth and how far groundwater travels from the point of discharge to a receiving stream.
Tyelyn Brigino, Kai C. Rains, Patricia Spellman, Elizabeth Wilson, Syverine Bentz, Lauren Sutton, Mark C. Rains   +6 more
wiley   +1 more source

The Application of Autonomous Fixed‐Wing Drones in the Sub‐Antarctic Operating Beyond Visual Line of Sight to Enable Large Area, Multi‐Species Population Monitoring in a Changing Environment

Remote Sensing in Ecology and Conservation, EarlyView.
Autonomous fixed‐wing drones operating beyond visual line of sight of the pilot were used to conduct the first aerial, multi‐species baseline reference survey at the sub‐Antarctic island of South Georgia. Long‐term population monitoring in this remote, challenging environment has historically proved difficult, with terrestrial monitoring generally ...
N. Fenney, J. Coleman, A. Fox, P. N. Trathan, M. A. Collins, P. R. Hollyman   +5 more
wiley   +1 more source

3D Nanoprinted Structures Promote Robust Integration of Brain Organoids into Topography‐Guided Neuronal Networks

Small, EarlyView.
Dedicated cultivation platforms facilitate the implementation of brain organoids in guided neuronal networks. Fabrication is enabled by two‐photon polymerization‐based 3D nanoprinting (3DN) and allows for cultivation in standard 12‐well plates. Fine features, namely slopes, funnels, rods, steps, and walls, facilitate and promote organoid positioning ...
Malte Siegmund, Tobias Müller, Emma Wollesen, Kim Krieg, Jack Muse, Jan Hahn, Maya Luongo, Wolfgang J. Parak, Ole Pless, Robert Zierold, Robert H. Blick   +10 more
wiley   +1 more source

Composite Microgels with Dynamically Switchable Stiffness

Small, EarlyView.
Composite microgels comprising alginate and mucin are produced, in which covalent and ionics cross‐links are combined such that the mechanical properties of the microgels can be tuned on demand at any time post‐production. In addition, the mucin component conveys bacteria‐repellent properties to the cytocompatible microgels.
Jana T. Reh, Leonard Funke, Berna Özkale, Oliver Lieleg   +3 more
wiley   +1 more source

Surface mass balance and ice dynamics of Qaanaaq Ice Cap, northwestern Greenland (Kalaallit Nunaat), from 2012 to 2025

Journal of Glaciology
To investigate glacier mass loss and ice dynamics in northwestern Greenland, we measured surface mass balance (SMB), ice velocity and surface elevation from 2012 to 2025 on Qaanaaq Glacier, an outlet glacier of Qaanaaq Ice Cap.
Takuro Imazu, Shin Sugiyama, Kaho Watanabe, Ken Kondo, Shun Tsutaki   +4 more
doaj   +1 more source

Cytogenotoxic and Molecular Assessment of Pyrethrins on Non‐Target Allium cepa Roots

Environmental Toxicology, EarlyView.
ABSTRACT The pyrethrins, which form a part of naturally occurring insecticidal chemicals derived from chrysanthemum flowers, not only provide rapid knockdown of a broad spectrum of insect pests but are also widely used in integrated pest management due to a generally favorable safety profile, largely attributed to low mammalian toxicity.
Yudum Yeltekin Uğur, Rahsan Ilikci‐Sagkan, Recep Liman   +2 more
wiley   +1 more source

Accelerated glacier changes on the James Ross Archipelago, Antarctica, from 2010 to 2023

Journal of Glaciology
Accelerated glacier mass loss across the Antarctic Peninsula has consequences for sea level rise and local ecology. However, there are few direct glaciological observations available from this region.
Christopher D. Stringer, Mia W. Macfee, Jonathan L. Carrivick, Kamil Láska, Zbyněk Engel, Michael Matějka, Connie Harpur, Daniel Nývlt, Duncan J. Quincey, Bethan J. Davies   +9 more
doaj   +1 more source

Critical constraints to ecological buffering in a rapidly changing Arctic: A long‐term seabird study

Journal of Animal Ecology, EarlyView.
Drawing on two decades of research in East Greenland, this study shows that little auks, key seabird indicators of Arctic ecosystem health, can adapt to rapid environmental change through behavioural flexibility. However, increasing storms and mercury pollution are pushing resilience to its limits, providing an early warning of broader Arctic ...
David Grémillet, Françoise Amélineau, Ann M. A. Harding, Jérôme Fort   +3 more
wiley   +1 more source

Gough's Cave and biomolecular archaeology: a story of evolving interpretation Archéologie biomoléculaire à la grotte de Gough's Cave : une interprétation en constante évolution

Journal of the Royal Anthropological Institute, EarlyView.
Gough's Cave is a key archaeological site that has been at heart of British archaeology for the past century. Professor Chris Stringer, whom this special issue honours, has been a key figure in excavations and research projects at the site for many decades.
William A. Marsh
wiley   +1 more source