Results 121 to 130 of about 134,745 (361)

Neural circuitry of rapid eye movement sleep homeostasis: Mechanistic insights and pathological implications

Sleep Research, EarlyView.
Abstract Rapid eye movement (REM) sleep is a unique brain state crucial for emotion, memory, and plasticity. Unlike well‐understood non‐REM (NREM) sleep homeostasis, REM sleep homeostasis remains less clearly defined. This review highlights recent progress in understanding REM sleep homeostasis, focusing on its neurophysiological markers, neural ...
Ting He
wiley   +1 more source

Brief increases in corticosterone affect morphology, stress responses, and telomere length, but not post-fledging movements, in a wild songbird

, 2018
Organisms are frequently exposed to challenges during development, such as poor weather and food shortage. Such challenges can initiate the hormonal stress response, which involves secretion of glucocorticoids. Although the hormonal stress response helps
Haussmann, Mark F., Pegan, Teresa M., Vitousek, Maren N., Winkler, David W.   +3 more
core   +1 more source

Host species and age‐specific variation on Hepatozoon prevalence and its effect on body condition in two Neotropical crocodiles

Wildlife Biology, EarlyView.
Many populations of species belonging to the order Crocodilia are threatened due to illegal trafficking, indiscriminate hunting, and habitat loss and degradation affecting crocodilian health and parasitic load. Although several studies have revealed that crocodiles, caimans, and alligators are frequently infected by Hepatozoon spp., the results from ...
Alfonso Marzal, Wendy Flores‐Saavedra, Sergio Magallanes, Jaime Muriel, Jefferson Lezama‐Briceño, Luis Alberto García‐Ayachi, Esteban Fong, Carlos Mora‐Rubio, Carlos Mendoza, Blanca Saldaña, Alazne Díez‐Fernández, José Martin, Carlos Marcial Perea‐Sicchar, Manuel González‐Blázquez   +13 more
wiley   +1 more source

Interpreting Neuroendocrine Hormones, Corticosterone, and Blood Glucose to Assess the Wellbeing of Anesthetized Rats during Euthanasia [PDF]

, 2018
Current recommendations for assessing animal wellbeing during euthanasia suggest that measuring neuroendocrine hormones-such as ACTH, noradrenaline, and adrenaline-is preferable to measuring corticosterone and blood glucose because of the sensitivity of ...
Hickman, Debra L.
core   +1 more source

Spraying drones: efficacy of integrating an avian repellent with drone hazing to elicit blackbird flock dispersal and abandonment of sunflower fields

Wildlife Biology, EarlyView.
Multiple management strategies exist to combat bird damage to agriculture. We explored combining two tools, drones as frightening devices and an avian repellent, to assess effectiveness of an integrated method to deter large flocks on complex landscapes. We evaluated the ability of a spraying drone (DJI Agras MG‐1P) deploying Avian Control (i.e. active
Jessica L. Duttenhefner, Timothy J. Greives, Page E. Klug   +2 more
wiley   +1 more source

Hunting method affects cortisol levels in harvested mountain hares (Lepus timidus)

Wildlife Biology, EarlyView.
The direct effects of hunting on hunted individuals and populations have been well known for a long time. However, recently there has also been an increased focus on the indirect, non‐lethal effects of hunting. When approached by a possible threat such as a predator, the prey releases various stress hormones into the bloodstream.
Simen Pedersen, Tomasz M. Ciesielski, Clare Stawski, Neil Reid, Shannen T. L. Sait, Hans C. Pedersen   +5 more
wiley   +1 more source

Triiodothyronine suppresses humoral immunity but not T-cell-mediated immune response in incubating female eiders (Somateria mollissima)

, 2007
Immunity is believed to share limited resources with other physiological functions and this may partly account for the fitness costs of reproduction. Previous studies have shown that the acquired immunity of female common eiders (Somateria mollissima) is
Ahima, Apanius, Bourgeon, Bourgeon, Bourgeon, Criscuolo, Criscuolo, Deerenberg, Demas, Eraud, Erikstad, Faggioni, Fowles, Gabarrou, Gabrielsen, Gustafsson, Hanssen, Hanssen, Hanssen, Harvey, Korschgen, Lord, Lõhmus, Lõhmus, Martinez-Padilla, Martínez, Matarese, Matarese, McNabb, Merino, Moreno, Norris, Parham, Roitt, Råberg, Saino, Sechman, Sheldon, Smits, Sophie Bourgeon, Stearns, Thierry Raclot, Tomás, Verhulst, Williams, Williamson   +45 more
core   +1 more source

EFFECTS OF CORTICOSTERONE, HYDROCORTISONE, AND CORTICOTROPIN ON PRODUCTION OF ANTIBODIES IN RABBITS [PDF]

, 1955
Edward H. Kass, M. I. Kendrick, Maxwell Finland   +2 more
openalex   +1 more source

Fecal corticosterone metabolite levels in two closely related rodent species in a sub‐Mediterranean environment

Wildlife Biology, EarlyView.
Glucocorticoids regulate many physiological functions and play an important role in coping with challenging stimuli. The non‐invasive assessment of glucocorticoids is increasingly used as a tool to evaluate individual and population health status in wild animals.
Carlo Cinque, Cristina Bencini, Paola Bartolommei, Andrea Bonacchi, Stefania Gasperini, Emiliano Manzo, Roberto Cozzolino   +6 more
wiley   +1 more source

Quantification of steroid hormones in free‐ranging Apennine wolf Canis lupus italicus hair samples collected post‐mortem

Wildlife Biology, EarlyView.
After decades of dramatic reductions in their populations, Italian wolves have begun recolonizing parts of their historic range. This growth in populations can lead to potential conflicts with human activities, which remain the main cause of wolf mortality.
Ilaria Troisio, Carmela Musto, Nicola Acquisti Casi, Nadia Govoni, Giuseppe Merialdi, Domenico Ventrella, Alberto Elmi, Mauro Delogu, Maria Laura Bacci   +8 more
wiley   +1 more source