Results 61 to 70 of about 35,333 (214)

Vocal learning promotes patterned inhibitory connectivity. [PDF]

open access: yes, 2017
Skill learning is instantiated by changes to functional connectivity within premotor circuits, but whether the specificity of learning depends on structured changes to inhibitory circuitry remains unclear.
Brainard, Michael S   +2 more
core   +2 more sources

Mate desertion affects offspring survival, development and physiology in a songbird with multiple parental strategies

open access: yesFunctional Ecology, EarlyView.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Sexual conflict affects the amount and duration of offspring care each parent invests, resulting in multiple parental care strategies sometimes coexisting within a single population.
Valentina Alaasam   +11 more
wiley   +1 more source

11β-HSD Types 1 and 2 in the Songbird Brain

open access: yesFrontiers in Endocrinology, 2018
Glucocorticoid (GC) hormones act on the brain to regulate diverse functions, from behavior and homeostasis to the activity of the hypothalamic–pituitary–adrenal axis.
Michelle A. Rensel   +7 more
doaj   +1 more source

Brain Distribution and Sexually Dimorphic Expression of Amylin in Different Reproductive Stages of the Zebra Finch (Taeniopygia guttata) Suggest Roles of the Neuropeptide in Song Learning and Social Behaviour

open access: yesFrontiers in Neuroscience, 2020
The expression of the recently identified neuropeptide, amylin, is restricted in rodents to the postpartum preoptic area and may play a role in the control of parental behaviours and food intake.
Gergely Zachar   +10 more
doaj   +1 more source

Parental care and bird embryonic metabolism: A comparison between uniparentally incubating Silver‐throated Tits and biparentally incubating Black‐throated Tits

open access: yesFunctional Ecology, EarlyView.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Studies have shown that organisms may adjust metabolic rates in response to thermal variability, highlighting metabolic plasticity as a key adaptive mechanism. Understanding the extent of metabolic plasticity of an organism is key to predicting its adaptation to climate
Qian Hu   +6 more
wiley   +1 more source

Migratory connectivity and barrier‐crossing flights of Vermivora warblers are associated with synoptic weather conditions

open access: yesJournal of Animal Ecology, EarlyView.
Tracking data from ~10 g songbirds illuminate how weather conditions affect the initiation of long‐distance migratory flights across the Gulf of Mexico during autumn and spring. Seasonal differences and weak migratory connectivity near the Gulf suggest adaptive responses to weather, with future climate trends potentially reducing crossing favorability ...
Gunnar R. Kramer   +13 more
wiley   +1 more source

Tracking Landscape-Scale Movements of Snow Buntings and Weather-Driven Changes in Flock Composition During the Temperate Winter

open access: yesFrontiers in Ecology and Evolution, 2019
Nomadic movements of migratory birds are difficult to study, as the scale is beyond the capabilities of hand-held telemetry (10 s of kms) but too fine-scale for long-range tracking devices like geolocators (50–100 km accuracy).
Emily A. Mckinnon   +5 more
doaj   +1 more source

Reviewing the effects of food provisioning on wildlife immunity [PDF]

open access: yes, 2018
While urban expansion increasingly encroaches on natural habitats, many wildlife species capitalize on anthropogenic food resources, which have the potential to both positively and negatively influence their responses to infection.
Babayan, Simon A.   +2 more
core   +1 more source

Ecophysiology of an Avian Invader: Body Condition and Metabolic Rate Adjustments to Ambient Temperature

open access: yesIntegrative Zoology, EarlyView.
This study examines the ecophysiological responses of common waxbills to temperature variation in Portugal. We measured body condition and basal metabolic rate (BMR) during summer and winter across two regions in Portugal. Body condition was negatively correlated with temperature, while the relationship between BMR and temperature varied seasonally. In
Marina Sentís   +7 more
wiley   +1 more source

Cross-scale habitat selection reveals within-stand structural requirements for fledgling Golden-winged Warblers

open access: yesAvian Conservation and Ecology, 2021
The post-fledging period remains one of the most understudied portions of the avian lifecycle despite the fact that fledglings require resources distinct from those used during nesting.
Cameron J. Fiss   +4 more
doaj  

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