PMID: 9548646Apr 21, 1998Paper

Plasma corticosterone and testosterone levels during the annual reproductive cycle of male brown anoles (Anolis sagrei)

Physiological Zoology
Richard R TokarzHenry John-Alder

Abstract

The objective of the present study was to determine the plasma levels of testosterone and corticosterone in male Anolis sagrei during the annual reproductive cycle and to examine the relationships between seasonal change in the levels of these hormones, male reproductive activity, and body condition. Both testosterone and corticosterone levels in adult males captured in the Miami, Florida, area varied significantly with month and with season (i.e., breeding vs. nonbreeding period), although they were not significantly correlated with each other or with body mass. Mean monthly testosterone levels were higher during the breeding season (March-August) than during the nonbreeding season, with the one exception that the highest mean testosterone level occurred in February immediately before the beginning of the breeding season. Testosterone levels in the overall sample of 144 males were significantly correlated with testes mass but not with any of the other measured variables. Corticosterone levels were highest during the nonbreeding season and lowest during the breeding season. Corticosterone levels on a monthly basis were negatively correlated with monthly changes in testes mass and positively correlated with monthly changes in ab...Continue Reading

Citations

Mar 26, 2014·Hormones and Behavior·Jerry F Husak, Matthew B Lovern
Jun 8, 2013·Journal of Comparative Physiology. B, Biochemical, Systemic, and Environmental Physiology·D K Hews, A J Abell Baniki
Apr 25, 2012·Parasitology Research·Nicholas B PollockEmily N Taylor
Sep 25, 2002·General and Comparative Endocrinology·L Michael Romero
Dec 4, 2012·Hormones and Behavior·David KabelikLeah J Singh
Mar 31, 2010·Physiology & Behavior·Timothy A GowanDavid C Rostal
Aug 4, 2009·Comparative Biochemistry and Physiology. Part B, Biochemistry & Molecular Biology·John E Steffen, Kevin J McGraw
Apr 3, 2004·Physiology & Behavior·Josabel Belliure, Jean Clobert
May 12, 2016·PeerJ·Francisco Javier Zamora-CamachoGregorio Moreno-Rueda
Mar 5, 2003·Hormones and Behavior·Ignacio T Moore, Tim S Jessop
Dec 1, 2007·General and Comparative Endocrinology·Corina L WackMatthew B Lovern
Apr 29, 2004·Journal of Experimental Zoology. Part A, Comparative Experimental Biology·Josabel BelliureGabriele Sorci
Jun 25, 2009·Journal of Evolutionary Biology·R M CoxR Calsbeek
Jan 22, 2021·General and Comparative Endocrinology·Víctor ArgaezJ Jaime Zúñiga-Vega
Oct 24, 2002·General and Comparative Endocrinology·Eva L LacyMichael C Moore

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