Results 221 to 230 of about 5,638,972 (349)

Ingestive behavior and thermoregulation in sheep fed forage cactus silage undergoing intermittent water supply

open access: gold, 2018
Ismael de Sousa Nobre   +8 more
openalex   +2 more sources

Radio tracking detects behavioral thermoregulation at a snail's pace

open access: yes, 2018
Hilary A. Hayford   +2 more
semanticscholar   +1 more source

Arctic lake trout (Salvelinus namaycush) show evidence of seasonal acclimation of cardiac adrenergic sensitivity but not heat tolerance

open access: yesJournal of Fish Biology, EarlyView.
Abstract Many Arctic fishes experience prolonged periods of extreme cold and large thermal variation over both rapid and seasonal time scales which challenge critical physiological functions. In the central Canadian Arctic, we caught wild adult lake trout (Salvelinus namaycush) acclimatized to winter and summer temperatures to determine the extent to ...
Emily P. Williams   +6 more
wiley   +1 more source

The raphe nuclear organization and serotonergic system in the bat (Artibeus planirostris)

open access: yesJournal of Anatomy, EarlyView.
Schematic representation of the methodological workflow used to characterize the serotonergic (5‐HT) system in the bat Artibeus planirostris. Serotonin (5‐HT) immunohistochemistry was performed on brainstem sections to identify and map the distribution of serotonergic neurons within the raphe nuclei.
Mariana D. Leite   +9 more
wiley   +1 more source

Comparative endocranial anatomy in the crocodylians Leidyosuchus canadensis and Stangerochampsa mccabei from the upper Cretaceous of Alberta, Canada

open access: yesJournal of Anatomy, EarlyView.
Leidyosuchus canadensis and Stangerochampsa mccabei share endocranial features such as posterior projection of a neurovascular canal in the maxilla and a paratympanic sinus system most similar to those of small‐bodied and young extant crocodylians, suggesting that these pedomorphic features may reflect the ancestral crocodylian condition.
G. Donzé   +4 more
wiley   +1 more source

Thermographic Behaviour of the Orbicularis Oris Muscle Under Different Provocative Tests

open access: yesJournal of Oral Rehabilitation, EarlyView.
Study design showing the thermographic region of the orbicularis oris muscle (Picture 1), the foods used for chewing and the increase in mean temperature after the provocative tests (Picture 2). ABSTRACT Background Infrared thermography is an objective method for investigating muscle functioning, enabling inferences about physiology and therapeutics ...
Patrícia Vieira Salles   +5 more
wiley   +1 more source

Tone‐Evoked Sleep Electroencephalographic Slow Oscillations as a Function of Peripheral Rhythms: New Insights Into the Brain–Heart Integration

open access: yesJournal of Sleep Research, EarlyView.
ABSTRACT Recent studies have shown that acoustic stimulation, a common neuromodulation technique, can enhance slow‐wave activity (SWA), which is associated with immune, autonomic nervous system activity and cognitive health benefits. Despite some disagreement, many studies suggest that maximising tone‐evoked SWA depends on the timing of the acoustic ...
Mohamad Forouzanfar   +4 more
wiley   +1 more source

Testing the size‐grain hypothesis in a generalist predator: The case of an ant species in the Brazilian savannah

open access: yesJournal of Zoology, EarlyView.
In our recent study, we examined whether ants in the Brazilian Cerrado follow the “grain‐size hypothesis,” which proposes that larger ants should have proportionally longer legs to move efficiently across different environments. We used Ectatomma permagnum, a common predatory ant in the Cerrado, measuring hundreds of individuals collected from various ...
A. Sandim, R. Aranda
wiley   +1 more source

Autumn season lizard metabolism is explained by temperature and body mass but does not support cold adaptation across the latitudinal thermal gradient

open access: yesJournal of Zoology, EarlyView.
The metabolic cold adaptation hypothesis posits that populations inhabiting higher latitudes and altitudes will have increased metabolic rates to compensate for colder temperatures and shorter activity periods constraining energy use. This compensatory evolution may be exhibited in ectotherms that grow faster and larger in colder environments compared ...
Benjamin D. Haussmann, Travis R. Robbins
wiley   +1 more source

Rapid postfire color shift in a Mediterranean lizard

open access: yesJournal of Zoology, EarlyView.
We quantified dorsal luminosity and color composition of Psammodromus algirus in burned and adjacent unburned habitats at different times since fire. Lizards inhabiting recently burned areas displayed lighter dorsal coloration, particularly during the early stages of postfire succession, with the effect being more pronounced in larger individuals ...
L. Álvarez‐Ruiz   +2 more
wiley   +1 more source

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