Results 61 to 70 of about 1,454 (180)
Diet and birdsong: short‐term nutritional enrichment improves songs of adult Bengalese finch males
Journal of Avian Biology, 2016 Song is a notable sexual signal of birds, and serves as an honest indicator of male quality. Condition dependence of birdsong has been well examined from the viewpoint of the developmental stress hypothesis, which posits that complex songs assure fitness
Kentaro Yamada, Masayo Soma
doaj +1 more source
Perception of missing fundamentals in zebra finches and Bengalese finches.
Journal of the Acoustical Society of Japan (E), 2000 Perception of missing fundamental is widespread in vertebrate animals but seldom it is discussed with the relationship with vocal signals used by the animals.We tested the perception of missing fundamentals in two species of closely related finches with widely different vocal signals.Zebra finches and Bengalese finches were trained, in a Go-Nogo ...
openaire +2 more sources
Ibis, Volume 167, Issue 4, Page 1028-1042, October 2025.Bird song is an important and variable sexual signal in many passerine species. One function of this variability may be that males show mate choice and can alter their song according to the quality of the female to which they are singing. If attractive songs are costly, we can hypothesize that males sing more attractively or invest more in singing when
Mónika Jablonszky +5 more
wiley +1 more source
To transduce a zebra finch: interrogating behavioral mechanisms in a model system for speech. [PDF]
, 2017 The ability to alter neuronal gene expression, either to affect levels of endogenous molecules or to express exogenous ones, is a powerful tool for linking brain and behavior. Scientists continue to finesse genetic manipulation in mice.
Heston, Jonathan B, White, Stephanie A
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Reduced Adult Neurogenesis in Humans Results From a Tradeoff Rather Than Direct Negative Selection
BioEssays, Volume 47, Issue 9, September 2025.Embryonic radial glia (RG) generate neurons, glial cells, and later adult neural stem cells, which sustain adult neurogenesis (top, left to right). Human‐specific genetic modifications (blue arrow), selected to boost early RG neurogenic activity, may lead to premature RG exhaustion and reduced adult neurogenesis in the human brain (bottom).
David Morizet, Laure Bally‐Cuif
wiley +1 more source
Long sperm fertilize more eggs in a bird [PDF]
, 2015 Sperm competition, in which the ejaculates of multiple males compete to fertilize a female's ova, results in strong selection on sperm traits. Although sperm size and swimming velocity are known to independently affect fertilization success in certain ...
Bennison, C. +3 more
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Ecology and Evolution, Volume 15, Issue 9, September 2025.How do birds develop their unique vocal repertoires, and how do these vary across populations? Using machine learning and bioacoustics, we analyzed the vocalizations of the White Spectacled Bulbul, revealing population‐specific motifs built from shared syllables.
Aya Marck +4 more
wiley +1 more source
Differential sperm storage by female zebra finches Taeniopygia guttata [PDF]
, 2017 When females mate promiscuously, female sperm storage provides scope to bias the fertilization success towards particular males via the non-random acceptance and utilization of sperm.
Bakst MR +3 more
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Exploring Anatomical Links Between the Crow's Nidopallium Caudolaterale and Its Song System
Journal of Comparative Neurology, Volume 533, Issue 2, February 2025.The crow's nidopallium caudolaterale (NCL) projects densely to the dorsal intermediate arcopallium (AID) and the striatum, paralleling important song system pathways. Connections from the magnocellular nucleus of the anterior nidopallium (MAN) to NCL and HVC run in parallel but remain distinct.
Felix W. Moll +3 more
wiley +1 more source
Beyond Critical Period Learning: Striatal FoxP2 Affects the Active Maintenance of Learned Vocalizations in Adulthood. [PDF]
, 2019 In humans, mutations in the transcription factor forkhead box P2 (FOXP2) result in language disorders associated with altered striatal structure. Like speech, birdsong is learned through social interactions during maturational critical periods, and it ...
Day, Nancy F +3 more
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