Results 21 to 30 of about 13,903 (223)
The possible role of avian predators in limiting songbird populations has been largely discounted since the publication of findings showing a lack of statistical association in United Kingdom bird census data between changes in prey species populations ...
Christopher Paul Bell
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The organization of the anterior forebrain pathway (AFP) of songbirds important for context-dependent singing is similar to that of cortical basal ganglia loops (CBG) in mammals, which underlie motor behaviors including vocalization.
Sandeep Kumar +8 more
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The opioid system in the brain is responsible for processing affective states such as pain, pleasure, and reward. It consists of three main receptors, mu- (μ-ORs), delta- (δ-ORs), and kappa- (κ-ORs), and their ligands – the endogenous opioid peptides ...
Utkarsha A. Singh, Soumya Iyengar
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Adaptive strategies in nocturnally migrating insects and songbirds: contrasting responses to wind. [PDF]
1. Animals that use flight as their mode of transportation must cope with the fact that their migration and orientation performance is strongly affected by the flow of the medium they are moving in, i.e. by the winds. Different strategies can be used to
Alerstam, T +24 more
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Alexander Lees and Pramana Yuda introduce the songbird trade of Southern and Eastern Asia that is a major threat to regional bird populations.
Lees, Alexander C, Yuda, Pramana
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Singing occurs in songbirds of both sexes, but some species show typical degrees of sex-specific performance. We studied the transcriptional sex differences in the HVC, a brain nucleus critical for song pattern generation, of the forest weaver (Ploceus ...
Meng-Ching Ko +3 more
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Earlier evidence suggests that besides humans, some species of mammals and birds demonstrate visual self-recognition, assessed by the controversial “mark” test. Whereas, there are high levels of inter-individual differences amongst a single species, some
Pooja Parishar +2 more
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Lingual articulation in songbirds [PDF]
Lingual articulation in humans is one of the primary means of vocal tract resonance filtering that produces the characteristic vowel formants of speech. In songbirds, the function of the tongue in song has not been thoroughly examined, although recent research has identified the oropharyngeal-esophageal cavity as a resonance filter that is actively ...
Roderick A, Suthers +2 more
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Scale and Sensitivity of Songbird Occurrence to Landscape Structure in a Harvested Boreal Forest
To explore the spatial scales at which boreal forest birds respond to landscape structure and how those responses are influenced by forest harvest, we quantified the relationship between amounts of forest in the landscape at multiple spatial scales and ...
Philip D. Taylor, Meg A. Krawchuk
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A Molecular Assessment of the Taxonomy of Iranian Sylvia Warblers (Aves; Sylviidae) [PDF]
The largest genus in the Sylviidae family is Sylvia, which is the archetype for warblers. It contains up to 28 species that are distributed in the Old World. Here, we study Iranian Sylvia using cytochrome c oxidase subunit 1 (cox1) and cytochrome b (cytb)
Raziyeh Abdilzadeh +2 more
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