期刊
QUARTERLY REVIEW OF BIOLOGY
卷 97, 期 2, 页码 95-139出版社
UNIV CHICAGO PRESS
DOI: 10.1086/720081
关键词
adaptive programming; embryonic influences; environmental sex determination; epigenetic mechanisms; oviparous vertebrates; phenotypic plasticity; predator effects; thermal effects
类别
Environmental factors during embryogenesis can have knock-on effects on offspring in later life stages. This article discusses how temperature and predator cues can influence phenotypes in fish, amphibians, and reptiles, with reptiles being particularly well-described. These effects are common among ectotherms, as most oviparous species have their eggs incubated outside the mother's body, exposing them to varied and changing environmental conditions. Developmental plasticity helps offspring cope with potential influences they may encounter later in life, such as habitat temperature and safety.
Environmental factors influencing parents or offspring during embryogenesis can have knock-on effects at later life stages of the offspring. These effects may prepare the progeny for conditions that they may encounter as larvae, juveniles, and/or adults. Here, we give examples on how knock-on effects of temperature and predator cues can affect phenotypes of fish, amphibians, and reptiles. Such effects are best described in reptiles, but are generally widespread among ectotherms. Most of the species are oviparous with egg incubation outside the mother's body. The eggs can be exposed to highly different and variable environmental conditions, and developmental plasticity may help offspring cope with influences they may encounter at a later stage, e.g., whether the habitat will be warmer or colder and/or safer or riskier
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