Results 61 to 70 of about 2,772 (172)
ABSTRACT Seasonal photoperiodic cycles regulate energy rheostasis in many animals. Brown adipose tissue (BAT) and the liver are key metabolic organs that show remarkable plasticity in response to photoperiodic conditions. Prolactin (PRL) and thyroid hormones are endocrine signals that transmit neural‐derived photoperiodic time measurement encoding to ...
Sayantan Sur +5 more
wiley +1 more source
The predatory behavior of ants: an impressive panoply of morphological adaptations
This review focuses on predation in ants, showing the wide diversity of cases from solitary foraging to group hunting tactics, as well as the evolution of mandible shape frequently adapted to capture specific prey. Although most ants are generalist feeders, finding their sugary substances directly on plants or indirectly via sap‐sucking insects, some ...
Alain Dejean +6 more
wiley +1 more source
Hibernation is a unique physiological adaptation characterized by periods of torpor that consist of repeated, reversible and dramatic reductions of body temperature, metabolism and blood flow. External and internal triggers can induce arousal from torpor
Sherri L Christian +6 more
doaj +1 more source
Lemur species respond differently to fire‐related vegetation changes (structure, species diversity) according to body size and ecological specialization in the dry deciduous forests of northwestern Madagascar. ABSTRACT Habitat quality is a key determinant of wildlife distribution. Fire degrades forests by increasing canopy openness and eliminating even
Naina Ratsimba Rabemananjara +8 more
wiley +1 more source
We experimentally manipulated the presence of supplemental food at a bird feeder and monitored subcutaneous temperature (Tsub) in 15 overwintering black‐capped chickadees (Poecile atricapillus) during feeder visits to investigate whether food availability shapes daytime Tsub.
Deborah M. Hawkshaw, Kimberley J. Mathot
wiley +1 more source
In this paper we studied the energetic expenditure and thermoregulation of the Chilean mouse-opossum Thylamys elegans (Dielphidae) a nocturnal small marsupial, endemic of southern South America.
Francisco Bozinovic +3 more
doaj
Mitochondrial metabolism during fasting-induced daily torpor in mice
During fasting, mice (Mus musculus) undergo daily bouts of torpor, considerably reducing body temperature (T(b)) and metabolic rate (MR). We examined females of different laboratory strains (Balb/c, C57/6N, and CD1) to determine whether liver mitochondrial metabolism is actively reduced during torpor.
Brown, Jason C.L., Staples, James F.
openaire +2 more sources
Abstract White‐nose syndrome (WNS), caused by the emerging fungal pathogen Pseudogymnoascus destructans, has led to a steep decline in North American bat populations since the disease was first described in 2006. Although previously thought to only threaten bat populations in northern latitudes with prolonged hibernation in cool climates, recent ...
Lilianna K. Wolf +4 more
wiley +1 more source
The transcriptional cortical response to daily torpor in Phodopus sungorus
Using nuclei RNA-seq from Djungarian hamster cortex across seasonal and metabolic states, we show non-neuronal cells adapt seasonally through circadian genes, whereas neurons reprogramme during torpor, enriching RNA catabolism and revealing ...
Lukas C Bal +6 more
doaj +1 more source

