Results 21 to 30 of about 62,246 (292)

Long-term individualized monitoring of sympatric bat species reveals distinct species- and demographic differences in hibernation phenology

BMC Ecology and Evolution, 2022
Background Hibernation allows species to conserve energy and thereby bridge unfavorable environmental conditions. At the same time, hibernation imposes substantial ecological and physiological costs.
Frauke Meier, Leo Grosche, Christine Reusch, Volker Runkel, Jaap van Schaik, Gerald Kerth   +5 more
doaj   +1 more source

Temporal dynamics of the bat wing transcriptome: Insight into gene-expression changes that enable protection against pathogen

Virulence, 2023
Skin acts as a mechanical barrier between the body and its surrounding environment and plays an important role in resistance to pathogens. However, we still know little regarding skin responses to physiological changes, particularly with regard to ...
Aoqiang Li, Haixia Leng, Zhongle Li, Longru Jin, Keping Sun, Jiang Feng   +5 more
doaj   +1 more source

Flickering body temperature anticipates criticality in hibernation dynamics [PDF]

Royal Society Open Science, 2021
Hibernation has been selected for increasing survival in harsh climatic environments. Seasonal variability in temperature may push the body temperatures of hibernating animals across boundaries of alternative states between euthermic temperature and ...
Daniel Oro, Lídia Freixas
doaj   +1 more source

Metabolic changes in summer active and anuric hibernating free-ranging brown bears (ursus arctos) [PDF]

, 2013
The brown bear (Ursus arctos) hibernates for 5 to 6 months each winter and during this time ingests no food or water and remains anuric and inactive.
Anderstam, Björn, Bankir, Lise, Bragfors-Helin, Ann-Christin, Eriksson, Monica, Friebe, Andrea, Fröbert, Ole, Johnson, Richard J., Josefsson, Johan, Larsson, Tobias, Palm, Fredrik, Qureshi, Abdul Rashid, Sahdo, Berolla, Stenvinkel, Peter, Svensson, My, Zedrosser, Andreas   +14 more
core   +2 more sources

Infection and transmission of Nosema bombi in Bombus terrestris colonies and its effect on hibernation, mating and colony founding [PDF]

, 2008
The impact of the microsporidium Nosema bombi on Bombus terrestris was studied by recording mating, hibernation success, protein titre in haemolymph, weight change during hibernation, and colony founding of queens that were inoculated with N.
Steen, J.J.M., van der
core   +3 more sources

Oxidative and osmotolerant effects in Salvator merianae (Squamata: Teiidae) red blood cells during hibernation

Brazilian Journal of Biology, 2021
Hibernation is a natural condition of animals that lives in the temperate zone, although some tropical lizards also experience hibernation annually, such as the lizard native from South America, Salvator merianae, or “tegu” lizard.
G. S. Vicente-Ferreira, G. S. Martins, N. A. Chaves, D. G. H. Silva, C. R. Bonini-Domingos   +4 more
doaj   +1 more source

The effects of hibernation on the contractile and biochemical properties of skeletal muscles in the thirteen-lined ground squirrel, Ictidomys tridecemlineatus [PDF]

, 2013
Hibernation is a crucial strategy of winter survival used by many mammals. During hibernation, thirteen-lined ground squirrels, Ictidomys tridecemlineatus, cycle through a series of torpor bouts, each lasting more than a week, during which the animals ...
Allan, Baldwin, Bhattacharya, Boyer, Braulke, Brooks, Brooks, Brown, Buck, Buzadzić, Carey, Clark, Cotton, Drew, Forstner, Gao, Gnaiger, Heldmaier, Heldmaier, Hudson, James, James, James, James, Josephson, Josephson, Lee, Lohuis, Muleme, Musacchia, Méndez, Nowell, Orr, Page, Powers, Rolfe, Rourke, Shavlakadze, Staples, Storey, Takaki, Tessier, Thompson, Tøien, Yoshida, Zaykin   +45 more
core   +2 more sources

Hibernation [PDF]

Current Biology, 2013
Hibernation (multiday torpor) and daily torpor in heterothermic mammals and birds are characterized by pronounced temporal reductions in body temperature, energy expenditure, water loss, and other physiological functions and are the most effective means for energy conservation available to endotherms.
openaire   +2 more sources

Hepatic resistance to cold ferroptosis in a mammalian hibernator Syrian hamster depends on effective storage of diet-derived α-tocopherol

Communications Biology, 2021
Daisuke Anegawa et al. investigated the mechanisms responsible for cold resistance in the Syrian hamster’s hepatocytes, which exhibited remarkable resistance to prolonged cold culture.
Daisuke Anegawa, Yuki Sugiura, Yuta Matsuoka, Masamitsu Sone, Mototada Shichiri, Reo Otsuka, Noriko Ishida, Ken-ichi Yamada, Makoto Suematsu, Masayuki Miura, Yoshifumi Yamaguchi   +10 more
doaj   +1 more source

Variations in oxidative stress and antioxidant defense level during different phases of hibernation in common Asian toad, Duttaphrynus melanostictus

Biology Open, 2021
To assess redox status during hibernation with metabolic depression, oxidative stress parameters and antioxidant defense were assessed during different phases of hibernation including active period, hibernation, arousal, and post-arousal period, in the ...
Prabhati Patnaik, Deba Das Sahoo
doaj   +1 more source