Brain plasticity over the metamorphic boundary: Carry-over effect of larval environment on froglet brain development

N. Trokovic, A. Gonda, G. Herczeg, A. Laurila, J. Merilä

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

Brain development shows high plasticity in response to environmental heterogeneity. However, it is unknown how environmental variation during development may affect brain architecture across life history switch points in species with complex life cycles. Previously, we showed that predation and competition affect brain development in common frog (Rana temporaria) tadpoles. Here, we studied whether larval environment had carry-over effects in brains of metamorphs. Tadpoles grown at high density had large optic tecta at metamorphosis, whereas tadpoles grown under predation risk had small diencephala. We found that larval density had a carry-over effect on froglet optic tectum size, whereas the effect of larval predation risk had vanished by metamorphosis. We discuss the possibility that the observed changes may be adaptive, reflecting the needs of an organism in given environmental and developmental contexts.

Original languageEnglish
Pages (from-to)1380-1385
Number of pages6
JournalJournal of Evolutionary Biology
Volume24
Issue number6
DOIs
Publication statusPublished - Jun 2011

Fingerprint

plasticity
brain
tadpoles
predation
predation risk
optics
metamorphosis
Rana temporaria
frog
frogs
life cycle (organisms)
life history
life cycle
carry-over effect
organisms

Keywords

  • Amphibia
  • Brain size
  • Competition
  • Metamorphosis
  • Phenotypic plasticity
  • Predation
  • Tadpole

ASJC Scopus subject areas

  • Ecology, Evolution, Behavior and Systematics

Cite this

Brain plasticity over the metamorphic boundary : Carry-over effect of larval environment on froglet brain development. / Trokovic, N.; Gonda, A.; Herczeg, G.; Laurila, A.; Merilä, J.

In: Journal of Evolutionary Biology, Vol. 24, No. 6, 06.2011, p. 1380-1385.

Research output: Contribution to journalArticle

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