Results 51 to 60 of about 1,207 (181)

Nesting ecology of an ice‐associated seabird, Kittlitz's murrelet, at the northern edge of its range

open access: yesWildlife Society Bulletin, EarlyView.
We studied the Kittlitz's murrelet, an ice‐associated seabird of conservation concern, at the northern edge of its range. Over a 2‐year period, we estimated nest density and success at 2 sites, captured and telemetered nesting murrelets, and tested the use of a thermal camera to improve nest detection.
Michelle L. Kissling   +9 more
wiley   +1 more source

Preliminary Study on the Antibacterial Activities and Antibacterial Guided Fractionation of Some Common Medicinal Plants Practices in Itum Bahal, Kathmandu Valley of Nepal

open access: yesThe Scientific World Journal, 2023
The aim of this study was to evaluate the antibacterial activities of selected medicinal plant practices by a traditional healer of the Newar community in Itum Bahal, Kathmandu, Nepal. The antibacterial activities of the methanolic extract (1 mg/disc) of
Ravin Bhandari   +6 more
doaj   +1 more source

Holocene shoreline displacement and the impact of the Storegga tsunami on Hinnøya, northern Norway

open access: yesBoreas, EarlyView.
The Holocene relative sea‐level (RSL) history of Norway's largest island, Hinnøya, has been investigated in detail, using sediment records from 25 isolation basins. The sediments were analysed for macrofossil and phytoplankton content, which served as the basis for identifying marine–lacustrine transitions, that is isolation contacts. Terrestrial plant
Anders Romundset   +5 more
wiley   +1 more source

The Greenland–Scotland Ridge in a Changing Ocean: Time to Act?

open access: yesMarine Ecology, EarlyView.
ABSTRACT The Greenland–Scotland Ridge is a submarine mountain that rises up to 500 m below the sea surface and extends from the east coast of Greenland to the continental shelf of Iceland and across the Faroe Islands to Scotland. The ridge not only separates deeper ocean basins on either side, that is, the North Atlantic and Arctic oceans, but also ...
Christophe Pampoulie   +2 more
wiley   +1 more source

Influence of vapour pressure deficit and CO2 on the thermal sensitivity of stomatal function in tropical trees

open access: yesNew Phytologist, EarlyView.
Examining the potential thermal sensitivity of the model parameter g1 when accounting for the additive nature of underlying components including CO2 compensation point (Г*) and the marginal water cost of plant carbon gain (λ), when assuming λ is dependent upon changes in the viscosity (inverse of fluidity) of water (η, Pa·s) and the solubility of CO2 ...
Alexander W. Cheesman   +5 more
wiley   +1 more source

Leveraging the Highly Data‐Rich Northeast Arctic Cod (Gadus morhua, Gadidae) to Identify Key Biophysical Factors Behind Recruitment Success

open access: yesFish and Fisheries, Volume 27, Issue 4, Page 1006-1027, July 2026.
The recent markedly reduced recruitment success (recruitment per spawner stock biomass) of Northeast Arctic cod (Gadus morhua, Gadidae) is seemingly largely attributed to the joint negative effect of increased temperature and cannibalism but also predation on the postlarvae by Northeast Atlantic mackerel (Scomber scombrus, Scombridae).
Shuyang Ma   +11 more
wiley   +1 more source

Rottlerin, a natural polyphenol compound, inhibits upregulation of matrix metalloproteinase-9 and brain astrocytic migration by reducing PKC-δ-dependent ROS signal

open access: yesJournal of Neuroinflammation, 2020
Background Upregulation of matrix metalloproteinase-9 (MMP-9) has been indicated as one of the inflammatory biomarkers. In the central nervous system (CNS), the MMP-9 is induced by several proinflammatory mediators and participates in the CNS disorders ...
Tsong-Hai Lee   +5 more
doaj   +1 more source

A half century of monitoring reveals contrasting survival responses of Icelandic seabirds to climate and fisheries pressures

open access: yesIbis, Volume 168, Issue 3, Page 950-971, July 2026.
Seabirds serve as key indicators of marine environmental changes, with adult survival being a critical parameter for assessing population health. Iceland hosts some of the largest seabird populations in the North Atlantic, making it a valuable location for studying long‐term trends in seabird demographics.
Sarah E. Gutowsky   +6 more
wiley   +1 more source

Balancing Aerobic and Anaerobic Metabolism, and Its Effect on Recovery Time in Freely‐Diving Steller Sea Lions (Eumetopias jubatus)

open access: yesMarine Mammal Science, Volume 42, Issue 3, July 2026.
ABSTRACT As breath‐hold divers, marine mammals must coordinate their use of both aerobic and anaerobic metabolism to maximize their time at depth. One indication of the relative reliance between these two energy‐producing systems is the aerobic dive limit (ADL), defined as the dive duration where post‐dive blood lactate concentrations surpass resting ...
Aaron S. Purdy, David A. S. Rosen
wiley   +1 more source

Studies on cytotoxic, phytotoxic and volatile profile of the bark extract of the medicinal plant, Mallotus tetracoccus (Roxb.) Kurz.

open access: yes, 2016
This study was aimed at analysing the compounds present in the bark extract of Mallotus tetracoccus (Roxb.) Kurz. by GC-MS analysis and also to investigate the cytotoxic and phytotoxic activity of Mallotus tetracoccus (Roxb.) Kurz. bark extract.
Muthuchelian, Krishnaswamy   +1 more
core   +1 more source

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