Ontogeny of performance in vertebrates

Anthony Herrel, Alice C Gibb

Research output: Contribution to journalArticle

109 Citations (Scopus)

Abstract

When competing for food or other resources, or when confronted with predators, young animals may be at a disadvantage relative to adults because of their smaller size. Additionally, the ongoing differentiation and growth of tissues and the development of sensory-motor integration during early ontogeny may constrain performance. Because ectothermic vertebrates show different growth regimes and energetic requirements when compared to endothermic vertebrates, differences in the ontogenetic trajectories of performance traits in these two groups might be expected. However, both groups of vertebrates show similar patterns of changes in performance with ontogeny. Evidence for compensation, resulting in relatively high levels of performance in juveniles relative to adults, appears common for traits related to locomotor and defensive behaviors. However, there is little evidence for compensation in traits associated with feeding and foraging. We suggest that this difference may be due to different selective regimes operating on locomotor versus feeding traits. As a result, relatively high levels of locomotor performance in juveniles and relatively high levels of feeding performance in adults are observed across a wide range of vertebrate groups.

Original languageEnglish (US)
Pages (from-to)1-6
Number of pages6
JournalPhysiological and Biochemical Zoology
Volume79
Issue number1
DOIs
StatePublished - Jan 2006

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Vertebrates
ontogeny
vertebrates
defensive behavior
young animals
Animals
feeding level
Growth and Development
Trajectories
Tissue
trajectories
foraging
predators
Food
Growth
Compensation and Redress

ASJC Scopus subject areas

  • Animal Science and Zoology
  • Physiology
  • Physiology (medical)

Cite this

Ontogeny of performance in vertebrates. / Herrel, Anthony; Gibb, Alice C.

In: Physiological and Biochemical Zoology, Vol. 79, No. 1, 01.2006, p. 1-6.

Research output: Contribution to journalArticle

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