Origins of music in credible signaling

Behavioral and Brain Sciences, Год журнала: 2020, Номер 44

Опубликована: Авг. 26, 2020

Abstract Music comprises a diverse category of cognitive phenomena that likely represent both the effects psychological adaptations are specific to music (e.g., rhythmic entrainment) and for non-musical functions auditory scene analysis). How did evolve? Here, we show prevailing views on evolution – is byproduct other evolved faculties, social bonding, or signal mate quality incomplete wrong. We argue instead as credible in at least two contexts: coalitional interactions infant care. Specifically, propose (1) production reception coordinated, entrained displays co-evolved system credibly signaling coalition strength, size, coordination ability; (2) infant-directed song parental attention secondarily altricial infants. These proposals, supported by interdisciplinary evidence, suggest basic features music, such melody rhythm, result from proper domain human music. The provide foundation cultural its actual domain, yielding diversity musical forms behaviors found worldwide.

Язык: Английский

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The definition of sexual selection

Behavioral Ecology, Год журнала: 2021, Номер 32(5), С. 781 - 794

Опубликована: Май 11, 2021

Sexual selection is a key component of evolutionary biology. However, from the very formulation sexual by Darwin, nature and extent have been controversial. Recently, such controversy has led back to fundamental question just what is. This included how we incorporate female-female reproductive competition into or natural selection. In this review, do four things. First, examine want definition do. Second, define selection:

Язык: Английский

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Origins of music in credible signaling

Опубликована: Июнь 3, 2020

How did music evolve? We show that prevailing views on the evolution of — is a byproduct other evolved faculties, for social bonding, and to signal mate quality are incomplete or wrong. argue instead as credible in at least two contexts: coalitional interactions infant care. suggest basic features music, including melody rhythm, result from adaptations proper domain human providing foundation cultural shapes into its actual domain.

Язык: Английский

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Competitive and Coordinative Interactions between Body Parts Produce Adaptive Developmental Outcomes

BioEssays, Год журнала: 2020, Номер 42(8)

Опубликована: Июнь 30, 2020

Abstract Large‐scale patterns of correlated growth in development are partially driven by competition for metabolic and informational resources. It is argued that between organs limited resources an important mesoscale morphogenetic mechanism produces fitness‐enhancing growth. At the genetic level, individual characters appears independent, or “modular,” because expression transcription often highly localized, mutations have trait‐specific effects, gene complexes can be co‐opted as a unit to produce novel traits. However, body parts known interact over course ontogeny, these reciprocal exchanges determinant developmental outcomes. Genetic mechanisms underlie cell tissue behaviors allow communicate with one another, but they also create evolutionarily adaptive competitive dynamics physiological biophysical processes. Advances understanding closely related coordinative interactions across scales will complement existing research programs emphasize role cellular morphogenesis. Study large‐scale order produced promises facilitate advances basic evolutionary biology, well applied fields such bioengineering regenerative medicine aim regulate patterning

Язык: Английский

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The evolution of positive allometry and exaggerated traits in a diverse beetle clade

Functional Ecology, Год журнала: 2024, Номер 38(5), С. 1265 - 1283

Опубликована: Фев. 22, 2024

Abstract Understanding variation in trait allometry and the drivers of sexually selected traits is a major theme evolutionary biology. The static allometries are often positive due to disproportional investment by large individuals into size. Comparative studies weapon rare, typically focus on along single dimension (e.g. length), despite weapons diverging dramatically shape. Furthermore, predominantly groups where have evolved as novel structures horns), most arising from modifications existing structures. We test hypothesis that sexual selection drives using phylogenetic comparative approach with 59 brentine weevil species showing remarkable exaggeration size dimorphism (SSD). Contrasting two dimensions head (a trait) elytron length nonsexual trait), was common across both measures male size, but not females, there covariance between SSD species. Positive for less common, did show SSD, possibly function wings compensatory bearing weapons. Our findings support evolution within among species, modification be used does limit potential allometry. Read free Plain Language Summary this article Journal blog.

Язык: Английский

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Muscle mass drives cost in sexually selected arthropod weapons

Proceedings of the Royal Society B Biological Sciences, Год журнала: 2019, Номер 286(1905), С. 20191063 - 20191063

Опубликована: Июнь 26, 2019

Sexually selected weapons often function as honest signals of fighting ability. If poor-quality individuals produce high-quality weapons, then receivers should focus on other, more reliable signals. Cost is one way to maintain signal integrity. The costs tend increase with relative weapon size, and thereby restrict large who can them. Weapon cost, however, appears be unpredictably variable both within across taxa, the mechanisms underlying this variation remain unclear. We suggest in cost may result from composition—specifically, differences amount muscle mass directly associated weapon. test idea by measuring metabolic sexually seven arthropod species relating these measures mass. show that relatively muscles have disproportionately high resting rates provide evidence trend driven Overall, our results partially explained morphology integrity maintained increased

Язык: Английский

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Darwin, sexual selection, and the brain

Proceedings of the National Academy of Sciences, Год журнала: 2021, Номер 118(8)

Опубликована: Фев. 15, 2021

One hundred fifty years ago Darwin published The Descent of Man, and Selection in Relation to Sex , which he presented his theory sexual selection with its emphasis on beauty. However, it was not until 50 y that there a renewed interest Darwin’s general, specifically the potency mate choice. suggested many cases female preferences for elaborately ornamented males derived from female’s taste beautiful, notion females were attracted beauty own sake. Initially, choice behavioral ecologists focusing fitness advantages accrued through Subsequent studies focused sensory ecology signal design, often showing how end organs influenced types traits found attractive. Eventually, investigations neural circuits, neurogenetics, neurochemistry uncovered more complete scaffolding underlying attraction. More recently, research inspired by human psychophysics, economics, neuroaesthetics have provided some higher-order mechanisms. In this paper, I review progress our understanding conjecture “a beautiful” considering these diverse fields conspired provide unparalleled insight into chooser’s choices.

Язык: Английский

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Positive allometry of sexually selected traits: Do metabolic maintenance costs play an important role?

BioEssays, Год журнала: 2021, Номер 43(6)

Опубликована: Май 5, 2021

Abstract Sexual selection drives the evolution of some most exaggerated traits in nature. Studies on sexual often focus size these relative to body size, but few energetic maintenance costs tissues that compose them, and ways which vary with size. The relationships between energy use have consequences may allow large individuals invest disproportionally more sexually selected structures, or lead reduced per‐gram cost enlarged structures. Although can incur costs, are not universally high; they dependent mass metabolic activity associated them. Energetic play a pervasive yet little‐explored role shaping scaling across diverse taxa. Also see video abstract here: https://youtu.be/JyuoQIeA33Q

Язык: Английский

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Variation in allometry along the weapon-signal continuum

Evolutionary Ecology, Год журнала: 2022, Номер 36(4), С. 591 - 604

Опубликована: Фев. 24, 2022

Язык: Английский

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The prevalence of weapon damage: a proportional meta-analysis

Animal Behaviour, Год журнала: 2025, Номер 222, С. 123117 - 123117

Опубликована: Март 17, 2025

Язык: Английский

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