Results 111 to 120 of about 69,134 (261)

Living Low and Dry: Costs of and Resilience to Soil Hydric Stress in a Fossorial Amphisbaenian Reptile

Integrative Zoology, EarlyView.
Soil drought imposes moderate, temporary costs on a strictly fossorial amphisbaenian reptile. However, these animals seem to cope with, at least, moderately short droughts thanks to their peculiar adaptations to living in an underground environment. ABSTRACT The physiological traits of animals can be strongly influenced by climatic fluctuations, and ...
José Martín, Álvaro Navarro‐Castilla, Alejandro de la Concha, José Javier Cuervo, Isabel Barja, Pilar López   +5 more
wiley   +1 more source

Effect of Social Rank on Gut Microbes and Their Metabolites of Greater Long‐Tailed Hamsters (Tscherskia triton)

Integrative Zoology, EarlyView.
Social rank in greater long‐tailed hamsters (Tscherskia triton) shapes gut microbiota composition and metabolite profiles. Dominant males exhibit a “high‐vigilance, metabolically activated” phenotype, with elevated aggression and specific gut microbiota enriched in energy‐harvesting taxa and fecal queuine.
Da Zhang, Xiaoming Xu, Zhibin Zhang
wiley   +1 more source

Thymus-derived glucocorticoids are insufficient for normal thymus homeostasis in the adult mouse

BMC Immunology, 2004
Background It is unclear if thymus-derived glucocorticoids reach sufficient local concentrations to support normal thymus homeostasis, or if adrenal-derived glucocorticoids from the circulation are required.
Padgett Eric L, Pruett Stephen B
doaj   +1 more source

Saving Water to Survive: Alternative Water Loss Strategies Could Explain Color Polymorphism Maintenance in a Lacertid Lizard

Integrative Zoology, EarlyView.
We demonstrate that red male Podarcis muralis exhibit higher evaporative water loss compared to other morphs, indicating a physiological strategy that prioritizes hydroregulation over fine thermoregulation. This suggests red morphs are adapted to cooler, wetter niches, while white and yellow morphs possess superior water conservation mechanisms to ...
Roberto Sacchi, Stefano Scali, Thomas Dadda, Federico Storniolo, Marco A. L. Zuffi, Andrea Melotto, Stéphanie Sherpa, Federica Frongia, Danny Tassi, Gentile Francesco Ficetola, Marco Mangiacotti   +10 more
wiley   +1 more source

Morphotype Bias, Morph Specific Recruitment and No Elevation‐Life History Relation in High Altitude Mesquite Lizard Populations

Integrative Zoology, EarlyView.
Site‐level differences in population growth (λ) and phenotype frequencies. Mountain silhouettes represent the three study sites. Morph relative abundances are shown in the colored vertical bar. Point estimates and confidence intervals of λ for each site are displayed below, with the dashed line marking the threshold for demographic stability (λ = 1 ...
Brasil Canales‐Gordillo, Wendy L. Cuandón‐Hernández, José L. Jaramillo‐Alba, Jorge I. Chiu‐Valderrama, Hibraim A. Pérez‐Mendoza   +4 more
wiley   +1 more source

Stress hormone rapidly tunes synaptic NMDA receptor through membrane dynamics and mineralocorticoid signalling

Scientific Reports, 2017
Stress hormones, such as corticosteroids, modulate the transmission of hippocampal glutamatergic synapses and NMDA receptor (NMDAR)-dependent synaptic plasticity, favouring salient behavioural responses to the environment.
Lenka Mikasova, Hui Xiong, Amber Kerkhofs, Delphine Bouchet, Harm J. Krugers, Laurent Groc   +5 more
doaj   +1 more source

Effect of corticosterone on morphine-induced psychomotor effect and its sensitization

, 2004
Previous research demonstrated important roles of stress in behavioral effects of drug abuse. However, whether extraneous stress factors could differentially modulate morphine psychomotor effect and its sensitization is still unknown. This study examined
D. M. Wang, Y. H. Li, N. Sui, X. G. Zheng, C. Y. Liu   +4 more
core  

Baseline Cortisol and Behavioral Phenotype Are Linked to Context‐Dependent Spatial Cognition and Space Use in Giant Pandas

Integrative Zoology, EarlyView.
Baseline cortisol and repeatable behavioral phenotypes were associated with context‐dependent spatial cognition in giant pandas. Individuals differed in spatial search performance under stable and changing resource conditions. Exploratory GPS analyses revealed directionally consistent but non‐significant patterns of space use in novel environments ...
Yuxin Jiang, Yingmin Zhou, Wenling Wang, Yuhang Li, Yuanhao Du, Tianjiao Liu, Yanwu Lai, Daifu Wu, Shengshan He, Hong Yang, Jiqiu Zhou, Shijie Mou, Zhiguo Cui, Chuan Liu, Jia Zhou, Wen Zeng, Rong Li, Yuanming Zheng, Xinxing Zhang, Changyu Mou, Desheng Li, Jianghong Ran   +21 more
wiley   +1 more source

Inhibitory Effect of NMDA Receptors in the Ventral Tegmental Area on Hormonal and Eating Behavior Responses to Stress in Rats

Behavioural Neurology, 2014
Background. Stress and its consequences are among the causes of accidents. Objective. The effects of intraventral tegmental area (I-VTA) memantine on the plasma corticosterone and eating parameters disturbance induced by acute stress were investigated ...
Zohreh Sadat Nasihatkon, Maryam Khosravi, Zahra Bourbour, Hedayat Sahraei, Mina Ranjbaran, Seyedeh Maryam Hassantash, Mohammad Sahraei, Kefayat Baghlani   +7 more
doaj   +1 more source

Stress and corticosterone transdermal application-related corticosterone plasma levels and immune modulation of R. ornata toads.

, 2019
Stress and corticosterone transdermal application-related corticosterone plasma levels and immune modulation of R. ornata toads.
Fernando Ribeiro Gomes (7411199), Braz Titon Jr (7411193), Stefanny Christie Monteiro Titon (7411190), Vania Regina Assis (7411202), Adriana Maria Giorgi Barsotti (7411196)   +4 more
core   +1 more source