Brain development, song learning and mate choice in birds: a review and experimental test of the "nutritional stress hypothesis".

Journal Article (Journal Article)

The nutritional stress hypothesis explains how learned features of song, such as complexity and local dialect structure, can serve as indicators of male quality of interest to females in mate choice. The link between song and quality comes about because the brain structures underlying song learning largely develop during the first few months post-hatching. During this same period, songbirds are likely to be subject to nutritional and other stresses. Only individuals faring well in the face of stress are able to invest the resources in brain development necessary to optimize song learning. Learned features of song thus become reliable indicators of male quality, with reliability maintained by the developmental costs of song. We review the background and assumptions of the nutritional stress hypothesis, and present new experimental data demonstrating an effect of nestling nutrition on nestling growth, brain development, and song learning, providing support for a key prediction of the hypothesis.

Full Text

Duke Authors

Cited Authors

  • Nowicki, S; Searcy, WA; Peters, S

Published Date

  • December 2002

Published In

Volume / Issue

  • 188 / 11-12

Start / End Page

  • 1003 - 1014

PubMed ID

  • 12471497

Electronic International Standard Serial Number (EISSN)

  • 1432-1351

International Standard Serial Number (ISSN)

  • 0340-7594

Digital Object Identifier (DOI)

  • 10.1007/s00359-002-0361-3


  • eng