Biological timekee** in polar environments: lessons from terrestrial vertebrates

DG Hazlerigg, D Appenroth… - Journal of …, 2023‏ - journals.biologists.com
The polar regions receive less solar energy than anywhere else on Earth, with the greatest
year-round variation in daily light exposure; this produces highly seasonal environments …

Quantifying behavior and life‐history events of an Arctic ungulate from year‐long continuous accelerometer data

M Chimienti, FM van Beest, LT Beumer… - …, 2021‏ - Wiley Online Library
Bio‐logging technology is now the golden standard for assessing how individual animals
change their movement and behavior over time and space. Three‐dimensional …

Geochemical landscapes as drivers of wildlife reproductive success: Insights from a high-Arctic ecosystem

FM van Beest, NM Schmidt, L Stewart… - Science of the Total …, 2023‏ - Elsevier
The bioavailability of essential and non-essential elements in vegetation is expected to
influence the performance of free-ranging terrestrial herbivores. However, attempts to relate …

Reduced glucose concentration enhances ultradian rhythms in Pdcd5 promoter activity in vitro

IJ Ting, A Psomas, DJ Skene… - Frontiers in …, 2023‏ - frontiersin.org
Intrinsically driven ultradian rhythms in the hourly range are often co-expressed with
circadian rhythms in various physiological processes including metabolic processes such as …

Chromosomal-level reference genome assembly of muskox (Ovibos moschatus) from Banks Island in the Canadian Arctic, a resource for conservation genomics

S Lok, TNH Lau, B Trost, AHY Tong, T Paton… - Scientific Reports, 2024‏ - nature.com
The muskox (Ovibos moschatus), an integral component and iconic symbol of arctic
biocultural diversity, is under threat by rapid environmental disruptions from climate change …

Co‐expression of diurnal and ultradian rhythms in the plasma metabolome of common voles (Microtus arvalis)

A Psomas, NR Chowdhury, B Middleton… - The FASEB …, 2023‏ - Wiley Online Library
Metabolic rhythms include rapid, ultradian (hourly) dynamics, but it remains unclear what
their relationship to circadian metabolic rhythms is, and what role meal timing plays in …

Identification and expression of functionally conserved circadian clock genes in lichen-forming fungi

HF Valim, F Dal Grande, J Otte, G Singh, D Merges… - Scientific Reports, 2022‏ - nature.com
Lichen-forming fungi establish stable symbioses with green algae or cyanobacteria. Many
species have broad distributions, both in geographic and ecological space, making them …

Evidence of separate influence of moon and sun on light synchronization of mussel's daily rhythm during the polar night

D Tran, H Andrade, L Camus, P Leopold, C Ballantine… - Iscience, 2023‏ - cell.com
Marine organisms living at high latitudes are faced with a light climate that undergoes drastic
annual changes, especially during the polar night (PN) when the sun remains below the …

Extreme shifts in habitat suitability under contemporary climate change for a high-Arctic herbivore

FM Van Beest, E López-Blanco, LH Hansen… - Climatic Change, 2023‏ - Springer
Climate change is a major determinant of shifts in species' distribution ranges and habitat
suitability. The Arctic is one of the planet's most rapidly warming regions, yet biogeographic …

Re-sco** ultradian rhythms in the context of metabolism

DR van der Veen, MP Gerkema - Frontiers in physiology, 2024‏ - frontiersin.org
Rapid, ultradian biological rhythms are only partly comparable to circadian (24-h) rhythms.
Often, the ensuing expectations from this comparison are that 1) ultradian rhythms should be …