Coadaptation of offspring begging and parental provisioning

Autor: Bonnie de Vries, Wendt Müller, Ton G. G. Groothuis, Marcel Eens, Natalia Estramil
Přispěvatelé: Groothuis lab, Evolutionary Genetics, Development & Behaviour
Jazyk: angličtina
Rok vydání: 2017
Předmět:
0106 biological sciences
Male
Parents
Canaries
INVESTMENT
Environmental effects
Adaptation
Biological
01 natural sciences
Developmental psychology
Nesting Behavior
Behavioral Neuroscience
Differential allocation
Endocrinology
Pregnancy
Begging
Psychology
Testosterone
DEPOSITION
Maternal Behavior
Drug Implants
05 social sciences
Maternal effect
Egg Yolk
Prenatal factors
Prenatal Exposure Delayed Effects
GROWTH
Female
YOLK TESTOSTERONE
food.ingredient
Offspring
BROOD SIZE
GENETIC-BASIS
FLYCATCHER FICEDULA-ALBICOLLIS
Zoology
Mothers
Biology
010603 evolutionary biology
food
Yolk
Animals
0501 psychology and cognitive sciences
050102 behavioral science & comparative psychology
CONSEQUENCES
Endocrine and Autonomic Systems
EGGS
Provisioning
Testosterone (patch)
Feeding Behavior
Brood
Parent-offspring coevolution
Human medicine
Paternal care
COSTS
Zdroj: Hormones and behavior
Hormones and Behavior, 87, 129-136. ACADEMIC PRESS INC ELSEVIER SCIENCE
ISSN: 0018-506X
Popis: Recent studies on birds have shown that offspring begging and parental provisioning covary at the phenotypic level, which is thought to reflect genetic correlations. However, prenatal maternal factors, like yolk testosterone, may also facilitate parent-offspring coadaptation via their effects on offspring begging and development. In fact, maternal effects are thought to adjust offspring phenotype to the environmental conditions they will experience after birth, which are in turn strongly dependent on the levels of parental provisioning. Using cross-fostering experiments in canaries, we tested the role of maternal effects on parent-offspring coadaptation from two different approaches. First, we analyzed whether females deposit yolk testosterone in relation to their own or their partner's prospective parental provisioning, measured as the rate of parental feeding to foster nestlings. Second, we investigated whether females deposit yolk testosterone in relation to costs they incurred when raising a previous brood, as this likely impinges on their capacity to provide parental care in the near future. However, from the results of both experiments we have no evidence that canary females deposit yolk testosterone in order to match offspring begging to the levels of care they and/or their partners provide. We therefore found no evidence that yolk testosterone facilitates parent-offspring coadaptation. In addition, our results suggest that the functional consequences of yolk testosterone deposition may relate to hatching asynchrony since it primarily varied with egg laying order.
Databáze: OpenAIRE
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