Results 61 to 70 of about 22,574 (262)

Expressions of TLR4, MyD88, IRAK4 and NF-κΒ in the oviduct of Chinese brown frog (Rana dybowskii)

European Journal of Histochemistry, 2019
One special physiological phenomenon of the Chinese brown frog (Rana dybowskii) is that its oviduct goes through expansion prior to pre-hibernation instead of expanding during the breeding period. Our previous study discovered that some cytokines such as
Yue Zhang, Ao Zhang, Yue Zhao, Xiaohang Feng, Yuyao Sheng, Haolin Zhang, Qiang Weng, Meiyu Xu   +7 more
doaj   +1 more source

The relationship of sleep with temperature and metabolic rate in a hibernating primate. [PDF]

PLoS ONE, 2013
Study objectivesIt has long been suspected that sleep is important for regulating body temperature and metabolic-rate. Hibernation, a state of acute hypothermia and reduced metabolic-rate, offers a promising system for investigating those relationships ...
Andrew D Krystal, Bobby Schopler, Susanne Kobbe, Cathy Williams, Hajanirina Rakatondrainibe, Anne D Yoder, Peter Klopfer   +6 more
doaj   +1 more source

Hunting, but not outdoor recreation, modulates behavioural tolerance to human disturbance in Alpine marmots Marmota marmota

Wildlife Biology, EarlyView.
Humans are often perceived as predators by free‐living animals, and thus, even non‐consumptive human activities such as outdoor recreation may trigger behavioural and physiological responses, often with negative consequences on individual fitness and population persistence.
Friederike Zenth, Chiara Giari, Elena Morocutti, Ilse Storch, Daniel T. Blumstein, Andrea Corradini, Davide Righetti, Dominik Trenkwalder, Luca Corlatti   +8 more
wiley   +1 more source

Are Hibernators Toast? Global Climate Change and Prolonged Seasonal Hibernation. [PDF]

Glob Chang Biol
This review examines how global climate change impacts mammalian hibernators, emphasizing physiological, ecological and phenological aspects. Many hibernating species already inhabit extreme environments, thus are at risk as climate variability intensifies.
Dausmann KH, Cooper CE.
europepmc   +2 more sources

Dietary differentiation of two co‐occurring common bat species (Eptesicus nilssonii and Pipistrellus pygmaeus)

Wildlife Biology, EarlyView.
Sympatric bat species can co‐exist and avoid interspecific competition via niche differentiation e.g. diet. Detecting dietary differences can be achieved by comparing dietary niches of sympatric and allopatric populations. If dietary overlap is higher in sympatry versus allopatry, co‐occurrence may be altering the dietary niche of the species.
Heather Wood, Adam Kimberley, William F. Englund, Sara A. O. Cousins   +3 more
wiley   +1 more source

Artificial supplementary food influences hedgehog occupancy and activity patterns more than predator presence or natural food availability

Wildlife Biology, EarlyView.
Supplementary feeding for declining hedgehog Erinaceus europaeus populations is popular in Great Britain and has been suggested as an important factor in explaining higher densities in urban areas compared with rural ones. Occupancy modelling was used to test whether spatial variation in supplementary feeding, natural food, habitat, or predator ...
Eleanor S. Benjamin, Adam Bates, Robert Davis, Anthony Sévêque, Jonathan Wild, Ben Clutterbuck, Richard W. Yarnell   +6 more
wiley   +1 more source

A Case Report on Rehabilitation of the Asiatic Black Bear (Ursus thibetanus ussuricus) in the Wild 亚洲黑熊 (Ursus thibetanus ussuricus) 野外放归野化案例报告

Wildlife Letters, EarlyView.
Asiatic black bears in Russia face conservation threats such as habitat destruction and fragmentation, which exacerbate food shortages caused by crop failures. This study explores an innovative approach to rehabilitating bears that abandon hibernation in mid‐winter due to extreme exhaustion by providing supplemental food near their den sites.
Sergey A. Kolchin, Platon A. Maistrenko, Aleksey Yu. Oleynikov   +2 more
wiley   +1 more source

Does nocturnal light pollution impair immune function in a wild‐living amphibian?

Functional Ecology, EarlyView.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Light pollution is among the most rapidly growing anthropogenic stressors on Earth. As it spreads far beyond its original source, it affects natural protected areas playing a key role in protecting biodiversity.
Louise Cheynel, Adeline Dumet, Emmanuelle Gilot‐Fromont, Corinne Régis, Eve Ramery, Vanessa Gardette, Benjamin Rey, Thierry Lengagne, Nathalie Mondy   +8 more
wiley   +1 more source

Seasonal body mass dynamics mediate life‐history trade‐offs in a hibernating mammal

Journal of Animal Ecology, EarlyView.
We tested a suite of ecological hypotheses to explain variation in seasonal body mass dynamics of a fat‐storing mammalian hibernator. We further demonstrated that pre‐hibernation mass gain in ground squirrels mediates an annual allocation trade‐off between current and future reproduction as the squirrels forage and rear young under predation risk ...
Austin Z. T. Allison, Courtney J. Conway, Amanda R. Goldberg, Alice E. Morris, Emma C. Hakanson   +4 more
wiley   +1 more source

Liver transcriptome analysis reveals the molecular response to hibernation challenge in the Chinese soft-shelled turtle (Pelodiscus sinensis)

Frontiers in Marine Science
Hibernation is a physiological strategy animals use to survive in hostile environments with extreme temperature challenges and food scarcity. During this state, significant changes occur in metabolism and cellular function, with numerous stress response ...
Muhammad Shahid Iqbal, Xiaoqi Ai, Qingjun Zhu, Ijaz Khan, Zeeshan Ali, Tian Lan, Li Ding, Meiling Hong   +7 more
doaj   +1 more source