Results 31 to 40 of about 13,903 (223)

Survival of Adult Songbirds in Boreal Forest Landscapes Fragmented by Clearcuts and Natural Openings

open access: yesAvian Conservation and Ecology, 2008
There exists little information on demographic responses of boreal songbirds to logging. We conducted a 4-yr (2003-2006) songbird mark-recapture study in western Newfoundland, where land cover is a naturally heterogeneous mosaic of productive spruce-fir ...
Darroch M. Whitaker   +2 more
doaj   +1 more source

Dopamine Receptors in a Songbird Brain [PDF]

open access: yesJournal of Comparative Neurology, 2010
AbstractDopamine is a key neuromodulatory transmitter in the brain. It acts through dopamine receptors to affect changes in neural activity, gene expression, and behavior. In songbirds, dopamine is released into the striatal song nucleus area X, and the levels depend on social contexts of undirected and directed singing.
Kubikova, Lubica   +2 more
openaire   +3 more sources

Migration of North Asian Passerines

open access: yesАмурский зоологический журнал, 2022
The East Asian-Australasian bird migration system is one of the most species-rich migration systems, nevertheless, we have very little information on the migration of the species that use the Asian-Australasian Flyway.
Ласло Бозо   +1 more
doaj   +1 more source

Songbirds can learn flexible contextual control over syllable sequencing [PDF]

open access: yes, 2021
The flexible control of sequential behavior is a fundamental aspect of speech, enabling endless reordering of a limited set of learned vocal elements (syllables or words). Songbirds are phylogenetically distant from humans but share both the capacity for
Christian J Monroy Hernandez   +7 more
core   +1 more source

The effects of dietary linoleic acid and hydrophilic antioxidants on basal, peak, and sustained metabolism in flight‐trained European starlings

open access: yesEcology and Evolution, 2020
Dietary micronutrients have the ability to strongly influence animal physiology and ecology. For songbirds, dietary polyunsaturated fatty acids (PUFAs) and antioxidants are hypothesized to be particularly important micronutrients because of their ...
Wales A. Carter   +3 more
doaj   +1 more source

Examining the capability for rhythmic synchronization and music production in vocal learning parrot species

open access: yesFrontiers in Psychology, 2023
Vocal production learning and beat perception and synchronization (BPS) share some common characteristics, which makes the vocal learning and rhythmic synchronization hypothesis (VLH) a reasonable explanation for the evolution of the capability for ...
Yoshimasa Seki
doaj   +1 more source

Altering Opioid Neuromodulation in the Songbird Basal Ganglia Modulates Vocalizations

open access: yesFrontiers in Neuroscience, 2019
Although the interplay between endogenous opioids and dopamine (DA) in the basal ganglia (BG) is known to underlie diverse motor functions, few studies exist on their role in modulating speech and vocalization.
Sandeep Kumar   +7 more
doaj   +1 more source

Endogenous Programs and Flexibility in Bird Migration

open access: yesFrontiers in Ecology and Evolution, 2020
Endogenous programs that regulate annual cycles have been shown for many taxa, including protists, arthropods, fish, mammals and birds. In migration biology, these programs are best known in songbirds.
Susanne Åkesson, Barbara Helm
doaj   +1 more source

Wanted: A systematic review of the most trafficked songbirds in a Neotropical hotspot

open access: yesFrontiers in Forests and Global Change, 2023
The illegal wildlife trade is one of the main factors of biodiversity loss worldwide. Brazil, the largest country in South America, is a hub of wildlife trafficking, but availability of information on the issue is constrained to specific regions and to ...
Giuliana C. P. Ferrari   +4 more
doaj   +1 more source

Categories, concepts, and calls : auditory perceptual mechanisms and cognitive abilities across different types of birds.

open access: yes, 2013
Although involving different animals, preparations, and objectives, our laboratories (Sturdy's and Cook's) are mutually interested in category perception and concept formation.
Hoeschele, Marisa   +10 more
core   +1 more source

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