Low testosterone correlates with delayed development in male orangutans.

Male orangutans (Pongo spp.) display an unusual characteristic for mammals in that some adult males advance quickly to full secondary sexual development while others can remain in an adolescent-like form for a decade or more past the age of sexual maturity. Remarkably little is understood about how...

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Autores principales:	Melissa Emery Thompson, Amy Zhou, Cheryl D Knott
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2012
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/4c17a47d684543768b71b6d8310f5b88
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spelling	oai:doaj.org-article:4c17a47d684543768b71b6d8310f5b882021-11-18T08:12:00ZLow testosterone correlates with delayed development in male orangutans.1932-620310.1371/journal.pone.0047282https://doaj.org/article/4c17a47d684543768b71b6d8310f5b882012-01-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/23077585/pdf/?tool=EBIhttps://doaj.org/toc/1932-6203Male orangutans (Pongo spp.) display an unusual characteristic for mammals in that some adult males advance quickly to full secondary sexual development while others can remain in an adolescent-like form for a decade or more past the age of sexual maturity. Remarkably little is understood about how and why differences in developmental timing occur. While fully-developed males are known to produce higher androgen levels than arrested males, the longer-term role of steroid hormones in male life history variation has not been examined. We examined variation in testosterone and cortisol production among 18 fully-developed ("flanged") male orangutans in U.S. captive facilities. Our study revealed that while testosterone levels did not vary significantly according to current age, housing condition, and species origin, males that had undergone precocious development had higher testosterone levels than males that had experienced developmental arrest. While androgen variation had previously been viewed as a state-dependent characteristic of male developmental status, our study reveals that differences in the physiology of early and late developing males are detectable long past the developmental transition and may instead be trait-level characteristics associated with a male's life history strategy. Further studies are needed to determine how early in life differences in testosterone levels emerge and what consequences this variation may have for male behavioral strategies.Melissa Emery ThompsonAmy ZhouCheryl D KnottPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 7, Iss 10, p e47282 (2012)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Melissa Emery Thompson Amy Zhou Cheryl D Knott Low testosterone correlates with delayed development in male orangutans.
description	Male orangutans (Pongo spp.) display an unusual characteristic for mammals in that some adult males advance quickly to full secondary sexual development while others can remain in an adolescent-like form for a decade or more past the age of sexual maturity. Remarkably little is understood about how and why differences in developmental timing occur. While fully-developed males are known to produce higher androgen levels than arrested males, the longer-term role of steroid hormones in male life history variation has not been examined. We examined variation in testosterone and cortisol production among 18 fully-developed ("flanged") male orangutans in U.S. captive facilities. Our study revealed that while testosterone levels did not vary significantly according to current age, housing condition, and species origin, males that had undergone precocious development had higher testosterone levels than males that had experienced developmental arrest. While androgen variation had previously been viewed as a state-dependent characteristic of male developmental status, our study reveals that differences in the physiology of early and late developing males are detectable long past the developmental transition and may instead be trait-level characteristics associated with a male's life history strategy. Further studies are needed to determine how early in life differences in testosterone levels emerge and what consequences this variation may have for male behavioral strategies.
format	article
author	Melissa Emery Thompson Amy Zhou Cheryl D Knott
author_facet	Melissa Emery Thompson Amy Zhou Cheryl D Knott
author_sort	Melissa Emery Thompson
title	Low testosterone correlates with delayed development in male orangutans.
title_short	Low testosterone correlates with delayed development in male orangutans.
title_full	Low testosterone correlates with delayed development in male orangutans.
title_fullStr	Low testosterone correlates with delayed development in male orangutans.
title_full_unstemmed	Low testosterone correlates with delayed development in male orangutans.
title_sort	low testosterone correlates with delayed development in male orangutans.
publisher	Public Library of Science (PLoS)
publishDate	2012
url	https://doaj.org/article/4c17a47d684543768b71b6d8310f5b88
work_keys_str_mv	AT melissaemerythompson lowtestosteronecorrelateswithdelayeddevelopmentinmaleorangutans AT amyzhou lowtestosteronecorrelateswithdelayeddevelopmentinmaleorangutans AT cheryldknott lowtestosteronecorrelateswithdelayeddevelopmentinmaleorangutans
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Low testosterone correlates with delayed development in male orangutans.

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