Results 31 to 40 of about 22,151 (252)
Modelling of polar bear populations by the Leslie matrix population model
, 2010 Some general doubts have been voiced regarding the soundness of using a Leslie matrix population projection on polar bear ...
Larsen, Thor, Ugland, Karl I.
core +1 more source
, 2009 During recent fieldwork in Svalbard, a well preserved subfossil left mandible of a polar bear (Ursus maritimus Phipps, 1774) was discovered. A 14C age determination shows that it is older than 45 Ky (kilo-years), and an age determination with infrared ...
Wiig, Øystein, Ingólfsson, Ólafur
core +1 more source
Toward a non‐invasive inuit polar bear survey: Genetic data from polar bear hair snags
Wildlife Society Bulletin, 2013 We explore the feasibility of collecting microsatellite genotypes of non‐invasively collected hair from free‐ranging polar bears (Ursus maritimus) in M'Clintock Channel, Nunavut, Canada.
Peter Van Coeverden De Groot +7 more
doaj +1 more source
Ikona, świadek, ofiara. Niedźwiedź polarny jako figura wizualna dyskursu zmiany klimatu
Zagadnienia Rodzajów Literackich, 2021 The article focuses on the media practice of using visual representations of polar bears to illustrate information about climate change. It starts with a short description about the iconic status that climate discourse attributes to these type of images.
Michał Piasecki
doaj +1 more source
Polar bear predation on ringed seals in the fast-ice of Hornsund, Svalbard
, 1986 Polar bear hunting success on ringed seals in subnivean lairs and basking on the fast ice, was studied in Hornsund, Svalbard. A few bears were observed while actually hunting, but in most cases bear tracks were followed by snowmobile to determine the ...
Gjertz, Ian, Lydersen, Christian
core +1 more source
Frontiers in Conservation Science, 2023 Polar bears (Ursus maritimus), Eurasian lynx (Lynx lynx) and snow leopards (Panthera uncia) are elusive large carnivores inhabiting snow-covered and remote areas.
Micaela Hellström +8 more
doaj +1 more source
Polar bear hunt strategies evaluated by a Leslie matrix population model
, 2010 An APL program for a Leslie matrix population projection is developed and applied to analysis of a Canadian polar bear population. Hunting specified with respect to sex ratio within a total quota may be included in the projections.
Øritsland, Nils Are, Schweinsburg, Ray
core +1 more source
FEBS Letters, EarlyView.Fluorescent probes allow dynamic visualization of phosphoinositides in living cells (left), whereas mass spectrometry provides high‐sensitivity, isomer‐resolved quantitation (right). Their synergistic use captures complementary aspects of lipid signaling. This review illustrates how these approaches reveal the spatiotemporal regulation and quantitative
Hiroaki Kajiho +3 more
wiley +1 more source
Tumour–host interactions in Drosophila: mechanisms in the tumour micro‐ and macroenvironment
Molecular Oncology, EarlyView.This review examines how tumour–host crosstalk takes place at multiple levels of biological organisation, from local cell competition and immune crosstalk to organism‐wide metabolic and physiological collapse. Here, we integrate findings from Drosophila melanogaster studies that reveal conserved mechanisms through which tumours hijack host systems to ...
José Teles‐Reis, Tor Erik Rusten
wiley +1 more source
Molecular Oncology, EarlyView.Tumors contain diverse cellular states whose behavior is shaped by context‐dependent gene coordination. By comparing gene–gene relationships across biological contexts, we identify adaptive transcriptional modules that reorganize into distinct vulnerability axes.
Brian Nelson +9 more
wiley +1 more source