Results 31 to 40 of about 5,956 (194)

Relative enlargement of the medial preoptic nucleus in the Etruscan shrew, the smallest torpid mammal

open access: yesScientific Reports, 2022
Endothermy is a key feature of mammalian biology and enables mammals to maintain stable body temperature and homeostatic functions in the face of a rapidly changing environment.
Senmiao Sun, Michael Brecht
doaj   +1 more source

Sentipensar [Feel‐Thinking] Cultivates Collective Scientific Sensemaking and Worldbuilding Within and Beyond Ecological Despair

open access: yesScience Education, EarlyView.
ABSTRACT Educating youth about environmental and climate justice is crucial in realizing a sustainable and flourishing future. Yet this can be challenging given the intense eco‐emotions youth experience and express while learning about these consequential realities and their implications.
Kelsie Fowler
wiley   +1 more source

Modulation of Gene Expression in Key Survival Pathways During Daily Torpor in the Gray Mouse Lemur, Microcebus murinus

open access: yesGenomics, Proteomics & Bioinformatics, 2015
A variety of mammals employ torpor as an energy-saving strategy in environments of marginal or severe stress either on a daily basis during their inactive period or on a seasonal basis during prolonged multi-day hibernation.
Kyle K. Biggar   +6 more
doaj   +1 more source

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

open access: yesWildlife 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   +3 more
wiley   +1 more source

Torpor‐assisted migration: Regular use of shallow torpor reduces rest‐phase energy expenditure for songbirds during migration

open access: yesJournal of Animal Ecology, EarlyView.
Migrating songbirds regularly use shallow torpor (up to 98% of birds for some species) to save energy (up to 42%) during inactive periods. This Ruby‐crowned Kinglet Corthylio calendula that was captured after a spring snowstorm highlights the value of being able to save energy when encountering unfavourable conditions.
Ryan A. C. Leys   +2 more
wiley   +1 more source

Membrane phospholipid fatty acid composition regulates cardiac SERCA activity in a hibernator, the Syrian hamster (Mesocricetus auratus). [PDF]

open access: yesPLoS ONE, 2013
Polyunsaturated fatty acids (PUFA) have strong effects on hibernation and daily torpor. Increased dietary uptake of PUFA of the n-6 class, particularly of Linoleic acid (LA, C18:2 n-6) lengthens torpor bout duration and enables animals to reach lower ...
Sylvain Giroud   +5 more
doaj   +1 more source

Resonance and Psychic Affirmation: A Comparison of Hartmut Rosa's and Daniel Haybron's Conceptions of Human Happiness

open access: yesConstellations, EarlyView.
ABSTRACT The paper compares Hartmut Rosa's resonance theory of “the good life” and Daniel Haybron's psychic affirmation theory of “happiness,” which he differentiates, as a descriptive notion, from “well‐being” as an evaluative notion. Haybron suggests that a central determinant of happiness has to be the somewhat reliable occurrence of positive ...
Ole Höffken
wiley   +1 more source

Hypothalamic control systems show differential gene expression during spontaneous daily torpor and fasting-induced torpor in the Djungarian hamster (Phodopus sungorus).

open access: yesPLoS ONE, 2017
Djungarian hamsters are able to use spontaneous daily torpor (SDT) during the winter season as well as fasting-induced torpor (FIT) at any time of the year to cope with energetically challenging environmental conditions.
Ceyda Cubuk   +2 more
doaj   +1 more source

Boredom, despondency, and the scourge that lays waste at noon: an anthropology of acedia Ennui, abattement et le fléau qui frappe à midi : une anthropologie de l'acédie

open access: yesJournal of the Royal Anthropological Institute, EarlyView.
Attentive to the ways that inertia can take hold of life, Catholic monks recognize despondency as a potential not only within the monastery, but in contemporary society more widely. Such experiences are regularly mapped onto an understanding of what early Christian monks termed ‘acedia’ (a Greek term that can be translated as ‘lack of care’). Taking as
Richard D.G. Irvine
wiley   +1 more source

Assessing the Presence, Pattern, and Environmental Correlates of Seasonal Skin Thickening in Anurans

open access: yesIntegrative Zoology, EarlyView.
Histological sections, like that of the ventral pectoral skin of Lithobates pipiens, were measured to assess variation in skin thickness throughout the year in three North American anuran species. After correcting for individual body size, we test whether skin thickness changes throughout the year and which factors (environment or life history) explain
Collin S. VanBuren   +3 more
wiley   +1 more source

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