Results 11 to 20 of about 266 (115)
Marine Ecology, EarlyView., 2023 Abstract Microplastic input into the ocean represents an increasing threat to marine biota and may endanger the functioning of marine ecosystems, especially in semi‐enclosed basins, such as the Mediterranean Sea. The size spectrum of microplastics overlaps with that of nano‐microplankton (2–200 μm), thus potentially misleading suspension‐feeding ...
Claudia Traboni +3 more
wiley +1 more source
Nonrandom territory occupancy by nesting Gyrfalcons (Falco rusticolus)
Arctic Science, 2019 We know little regarding how specific aspects of habitat influence spatial variation in site occupancy by Arctic wildlife, yet this information is fundamental to effective conservation.
David L. Anderson +4 more
doaj +1 more source
Nest site characteristics, patterns of nest reuse, and reproductive output in an Arctic-nesting raptor, the Rough-legged Hawk [PDF]
The Auk, 2016 ABSTRACT Physical characteristics of nest sites are thought to influence their use by birds and the outcome of breeding attempts. The presence of preexisting nesting structures can also be an important factor influencing reuse patterns and reproductive success.
Andréanne Beardsell +3 more
openaire +1 more source
Avian Conservation and Ecology, 2013 Sensitivity to anthropogenic disturbance in conjunction with slow population recovery has raised conservation concerns over impacts to raptor species from industrial development in pristine areas of their North American breeding range.
Daniel W. Coulton +2 more
doaj +1 more source
Nesting habitat selection and distribution of an avian top predator in the Canadian Arctic
Arctic Science, 2018 Detecting and planning for ecosystem changes from climate and land-use alteration is limited by uncertainty about the current distribution of many species.
Kristen Peck +3 more
doaj +1 more source
3D Soft Hydrogels Induce Human Mesenchymal Stem Cells “Deep” Quiescence
Advanced Healthcare Materials, EarlyView.Three‐dimensional soft hydrogels mimicking the bone marrow niche induce deep quiescence in human mesenchymal stem cells. Unlike 2D culture, 3D matrices halt proliferation, regulate cell‐cycle and quiescence markers, and downregulate mTORC1 signaling, preserving stem cell phenotype and therapeutic potential ex vivo.
David Boaventura Gomes +11 more
wiley +1 more source
Oikos, EarlyView.Population growth reflects the combined influence of regulation and density‐independent factors operating through demographic processes. Under exceptional circumstances (e.g. populations recovering from near‐extinction), growth may initially be weakly regulated but typically slows as negative density dependence (NDD) sets in.
Bård‐Jørgen Bårdsen +2 more
wiley +1 more source
A Helicopter Survey for Cliff-Nesting Raptors Along the Dalton Highway in Northern Alaska, 2010
BirdsWe conducted a helicopter survey in 2010 for cliff-nesting raptors along the Dalton Highway in northern Alaska. The study area extended from the Yukon River northward ~395 km through the Brooks Range to the Arctic Plain.
Erica H. Craig +2 more
doaj +1 more source
Small, EarlyView.Single‐walled carbon nanotubes (SWCNTs) are versatile optical nanosensors that can be imaged at the single‐sensor level to map biological processes. To translate such imaging into calibrated measurements, sensor recovery under repeated analyte exposures must be analyzed.
Geffen Rosenberg, Gili Bisker
wiley +1 more source
Epizootic Activity of Natural Foci of Tularemia in Three Territories of the Arctic Zone
Эпидемиология и вакцинопрофилактикаRelevance. Tundra natural foci of tularemia are epizootically active. They are supported mainly by populations of endemics – ungulate and Siberian lemmings. However, studies of natural foci of tularemia in the Arctic zone were and are irregular. Recently,
T. V. Mikhailova +6 more
doaj +1 more source