Nutrition and peer group composition in early adolescence: impacts on male song and female preference in zebra finches

M. Honarmand, K. Riebel, M. Naguib

Research output: Contribution to journalArticleAcademicpeer-review

14 Citations (Scopus)

Abstract

There is increasing evidence that learning processes contribute to variation in sexually selected traits, but their potential condition dependence is poorly understood. Birdsong is a learned, culturally transmitted mating signal where suboptimal developmental conditions impair song development, thus demonstrating that learned signals can show condition dependency. However, song learning is also contingent on conspecific song models, raising the question of potential synergistic effects of nutrition and social environment on song development. Zebra finches, Taeniopygia guttata, have been instrumental in testing how stressors experienced during the first month of life (i.e. before nutritional and social independence) affect song learning (developmental stress hypothesis). However, the critical phase for male song learning and female song preference learning is the second month of life, when juveniles start foraging independently and are joining larger social groups. This raises the question of how diet and peer group composition during this adolescent stage affect male song and female song preference development. To test these questions, postfledging juveniles were housed in peer groups of varying sex ratios and fed low- or high-quality diets. Diet interacted with social conditions (sex ratio) in affecting male song rate and female song preferences but, foremost, the social environment shaped song and preference in previously unreported ways: despite the availability of an adult model, male song showed more similarity with the song of their former peers than with their respective tutor. Likewise, females, as adults, showed significant preferences for songs of their former peers over unfamiliar song but not for their respective tutor: the first demonstration of horizontal transmission of song preferences in female zebra finches. These results highlight how the quality of the rearing environment and social factors affect birdsong learning, contributing towards the growing evidence for developmental plasticity at different life stages of both mating traits and preferences.
Original languageEnglish
Pages (from-to)147-158
JournalAnimal Behaviour
Volume107
DOIs
Publication statusPublished - 2015

Fingerprint

adolescence
Taeniopygia guttata
peers
song
animal communication
nutrition
learning
social environment
teachers
diet
sex ratio
horizontal transmission

Keywords

  • developmental stress hypothesis
  • taeniopygia-guttata
  • early experience
  • mate choice
  • cognitive traits
  • poephila-guttata
  • sexual selection
  • neural response
  • songbirds
  • signal

Cite this

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title = "Nutrition and peer group composition in early adolescence: impacts on male song and female preference in zebra finches",
abstract = "There is increasing evidence that learning processes contribute to variation in sexually selected traits, but their potential condition dependence is poorly understood. Birdsong is a learned, culturally transmitted mating signal where suboptimal developmental conditions impair song development, thus demonstrating that learned signals can show condition dependency. However, song learning is also contingent on conspecific song models, raising the question of potential synergistic effects of nutrition and social environment on song development. Zebra finches, Taeniopygia guttata, have been instrumental in testing how stressors experienced during the first month of life (i.e. before nutritional and social independence) affect song learning (developmental stress hypothesis). However, the critical phase for male song learning and female song preference learning is the second month of life, when juveniles start foraging independently and are joining larger social groups. This raises the question of how diet and peer group composition during this adolescent stage affect male song and female song preference development. To test these questions, postfledging juveniles were housed in peer groups of varying sex ratios and fed low- or high-quality diets. Diet interacted with social conditions (sex ratio) in affecting male song rate and female song preferences but, foremost, the social environment shaped song and preference in previously unreported ways: despite the availability of an adult model, male song showed more similarity with the song of their former peers than with their respective tutor. Likewise, females, as adults, showed significant preferences for songs of their former peers over unfamiliar song but not for their respective tutor: the first demonstration of horizontal transmission of song preferences in female zebra finches. These results highlight how the quality of the rearing environment and social factors affect birdsong learning, contributing towards the growing evidence for developmental plasticity at different life stages of both mating traits and preferences.",
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Nutrition and peer group composition in early adolescence: impacts on male song and female preference in zebra finches. / Honarmand, M.; Riebel, K.; Naguib, M.

In: Animal Behaviour, Vol. 107, 2015, p. 147-158.

Research output: Contribution to journalArticleAcademicpeer-review

TY - JOUR

T1 - Nutrition and peer group composition in early adolescence: impacts on male song and female preference in zebra finches

AU - Honarmand, M.

AU - Riebel, K.

AU - Naguib, M.

PY - 2015

Y1 - 2015

N2 - There is increasing evidence that learning processes contribute to variation in sexually selected traits, but their potential condition dependence is poorly understood. Birdsong is a learned, culturally transmitted mating signal where suboptimal developmental conditions impair song development, thus demonstrating that learned signals can show condition dependency. However, song learning is also contingent on conspecific song models, raising the question of potential synergistic effects of nutrition and social environment on song development. Zebra finches, Taeniopygia guttata, have been instrumental in testing how stressors experienced during the first month of life (i.e. before nutritional and social independence) affect song learning (developmental stress hypothesis). However, the critical phase for male song learning and female song preference learning is the second month of life, when juveniles start foraging independently and are joining larger social groups. This raises the question of how diet and peer group composition during this adolescent stage affect male song and female song preference development. To test these questions, postfledging juveniles were housed in peer groups of varying sex ratios and fed low- or high-quality diets. Diet interacted with social conditions (sex ratio) in affecting male song rate and female song preferences but, foremost, the social environment shaped song and preference in previously unreported ways: despite the availability of an adult model, male song showed more similarity with the song of their former peers than with their respective tutor. Likewise, females, as adults, showed significant preferences for songs of their former peers over unfamiliar song but not for their respective tutor: the first demonstration of horizontal transmission of song preferences in female zebra finches. These results highlight how the quality of the rearing environment and social factors affect birdsong learning, contributing towards the growing evidence for developmental plasticity at different life stages of both mating traits and preferences.

AB - There is increasing evidence that learning processes contribute to variation in sexually selected traits, but their potential condition dependence is poorly understood. Birdsong is a learned, culturally transmitted mating signal where suboptimal developmental conditions impair song development, thus demonstrating that learned signals can show condition dependency. However, song learning is also contingent on conspecific song models, raising the question of potential synergistic effects of nutrition and social environment on song development. Zebra finches, Taeniopygia guttata, have been instrumental in testing how stressors experienced during the first month of life (i.e. before nutritional and social independence) affect song learning (developmental stress hypothesis). However, the critical phase for male song learning and female song preference learning is the second month of life, when juveniles start foraging independently and are joining larger social groups. This raises the question of how diet and peer group composition during this adolescent stage affect male song and female song preference development. To test these questions, postfledging juveniles were housed in peer groups of varying sex ratios and fed low- or high-quality diets. Diet interacted with social conditions (sex ratio) in affecting male song rate and female song preferences but, foremost, the social environment shaped song and preference in previously unreported ways: despite the availability of an adult model, male song showed more similarity with the song of their former peers than with their respective tutor. Likewise, females, as adults, showed significant preferences for songs of their former peers over unfamiliar song but not for their respective tutor: the first demonstration of horizontal transmission of song preferences in female zebra finches. These results highlight how the quality of the rearing environment and social factors affect birdsong learning, contributing towards the growing evidence for developmental plasticity at different life stages of both mating traits and preferences.

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KW - taeniopygia-guttata

KW - early experience

KW - mate choice

KW - cognitive traits

KW - poephila-guttata

KW - sexual selection

KW - neural response

KW - songbirds

KW - signal

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DO - 10.1016/j.anbehav.2015.06.017

M3 - Article

VL - 107

SP - 147

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JO - Animal Behaviour

JF - Animal Behaviour

SN - 0003-3472

ER -