Journal ArticleDOI
Sex steroids in green anoles (Anolis carolinensis): uncoupled maternal plasma and yolking follicle concentrations, potential embryonic steroidogenesis, and evolutionary implications.
Matthew B. Lovern,Juli Wade +1 more
TLDR
It is demonstrated that plasma and yolking follicle steroid levels produced by breeding females can be uncoupled, and steroid exposure may be independently shaped by selection to serve both reproductive and developmental functions.About:
This article is published in General and Comparative Endocrinology.The article was published on 2003-11-01. It has received 62 citations till now. The article focuses on the topics: Yolk & Ovarian follicle.read more
Citations
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Maternal hormones as a tool to adjust offspring phenotype in avian species
TL;DR: It is concluded that maternal androgen deposition in avian eggs provides a flexible mechanism of non-genetic inheritance, by which the mother can favour some offspring over others, and adjust their developmental trajectories to prevailing environmental conditions, producing different phenotypes.
Journal ArticleDOI
The green anole (Anolis carolinensis): a reptilian model for laboratory studies of reproductive morphology and behavior.
TL;DR: The green anol (Anolis carolinensis) is an excellent reptilian model for studying reproductive behavior and the neural and muscular morphology that supports it and the similarities and differences in the mechanisms mediating both structure and function compared with more traditional animal models.
Journal ArticleDOI
Orchestration of avian reproductive effort: an integration of the ultimate and proximate bases for flexibility in clutch size, incubation behaviour, and yolk androgen deposition.
TL;DR: Evidence in birds of altricial species for at least two behavioural mechanisms to buffer challenges and take advantage of opportunities and evidence for and against the seasonal coordination of these mechanisms through seasonal changes in plasma concentrations of the pituitary hormone prolactin are reviewed.
Journal ArticleDOI
Corticosterone exposure during embryonic development affects offspring growth and sex ratios in opposing directions in two lizard species with environmental sex determination.
TL;DR: The manipulation of corticosterone levels in eggs of two Australian lizard species that exhibit temperature‐dependent sex determination demonstrate the complexity of proximate mechanisms for sex determination among reptiles with TSD and illustrate the potential role of cortiosterone in sex‐determining systems.
Journal ArticleDOI
Epigenetics as a source of variation in comparative animal physiology - or - Lamarck is lookin' pretty good these days
TL;DR: This essay provides a number of caveats and warnings regarding the interpretation of transgenerational phenotype modification as a true epigenetic phenomenon, and discusses the ecological and evolutionary significance of such epigenetic inheritance in a comparative physiological context.
References
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Journal ArticleDOI
Analyzing tables of statistical tests
TL;DR: Technique non parametrique pour la signification statistique de tables de tests utilisees dans les etudes sur l'evolution notamment.
Book
Nonparametric Statistical Methods
Myles Hollander,Douglas A. Wolfe +1 more
TL;DR: An ideal text for an upper-level undergraduate or first-year graduate course, Nonparametric Statistical Methods, Second Edition is also an invaluable source for professionals who want to keep abreast of the latest developments within this dynamic branch of modern statistics.
Journal ArticleDOI
Yolk is a source of maternal testosterone for developing birds
TL;DR: These findings indicate that female songbirds can bestow upon their eggs a dose of hormone that modifies the behavior of offspring, suggesting that variable doses of these hormones might explain some of the individual variation in offspring behavior.
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The determination of five steroids in avian plasma by radioimmunoassay and competitive protein-binding
TL;DR: Testosterone, 5alpha-dihydrotestosterone, estrone and estradiol-17beta were measured by radioimmunoassay and corticosterone by a competitive protein-binding technique and Plasma-steroid levels of eight avian species are presented and compared with those found by other investigators.
Journal ArticleDOI
Maternal testosterone in the avian egg enhances postnatal growth
TL;DR: Injections of testosterone into the yolk of unincubated eggs enhanced the growth after hatching compared to nestlings that had hatched simultaneously from control eggs, but more testosterone did not compensate for reduced growth that was caused by later hatching due to asynchronous incubation of clutches.