nigel.stanger / Digital_Repository
Transfer to URL with SHA Find file
Newer
Older
Digital_Repository / Misc / Mass downloads / UTas / 2423.html
Nigel Stanger on 7 May 2013 33 KB - Imported Misc directory.
Raw Blame History 
  1. <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
  2. "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
  3. <html>
  4.   <head>
  5.     <title>UTas ePrints - Asynchronous male and female gonadal cycles and plasma steroid concentrations in a viviparous lizard, Niveoscincus ocellatus (Scincidae), from Tasmania</title>
  6.     <script type="text/javascript" src="http://eprints.utas.edu.au/javascript/auto.js"><!-- padder --></script>
  7.     <style type="text/css" media="screen">@import url(http://eprints.utas.edu.au/style/auto.css);</style>
  8.     <style type="text/css" media="print">@import url(http://eprints.utas.edu.au/style/print.css);</style>
  9.     <link rel="icon" href="/images/eprints/favicon.ico" type="image/x-icon" />
  10.     <link rel="shortcut icon" href="/images/eprints/favicon.ico" type="image/x-icon" />
  11.     <link rel="Top" href="http://eprints.utas.edu.au/" />
  12.     <link rel="Search" href="http://eprints.utas.edu.au/cgi/search" />
  13.     <meta content="Jones, Susan M." name="eprints.creators_name" />
  14. <meta content="Wapstra, Erik" name="eprints.creators_name" />
  15. <meta content="Swain, Roy" name="eprints.creators_name" />
  16. <meta content="S.M.Jones@utas.edu.au" name="eprints.creators_id" />
  17. <meta content="erik.wapstra@utas.edu.au" name="eprints.creators_id" />
  18. <meta content="Roy.Swain@utas.edu.au" name="eprints.creators_id" />
  19. <meta content="article" name="eprints.type" />
  20. <meta content="2007-11-15 02:45:38" name="eprints.datestamp" />
  21. <meta content="2008-01-08 15:30:00" name="eprints.lastmod" />
  22. <meta content="show" name="eprints.metadata_visibility" />
  23. <meta content="Asynchronous male and female gonadal cycles and plasma steroid concentrations in a viviparous lizard, Niveoscincus ocellatus (Scincidae), from Tasmania" name="eprints.title" />
  24. <meta content="pub" name="eprints.ispublished" />
  25. <meta content="270604" name="eprints.subjects" />
  26. <meta content="restricted" name="eprints.full_text_status" />
  27. <meta content="Definitive version is available online at http://www.sciencedirect.com/" name="eprints.note" />
  28. <meta content="The reproductive cycle in males of the skink, Niveoscincus ocellatus, is characterised by testicular development during summer, followed by mating in autumn. Plasma testosterone concentrations show a bimodal seasonal cycle, with the major peak (18.6 ± 1.2 ng/ml) in late summer/autumn and a minor peak (7.4 ± 1.0 ng/ml) at spring emergence. In contrast to the males, the females have a gonadal cycle in which mating is temporally dissociated from peak development of the gonads: ovulation occurs in spring and the young are born in summer. Fresh mating marks on females in spring indicate that at least part of the population mates for a second time after spring emergence. In females, plasma estradiol concentrations are significantly elevated (956 ± 214 pg/ml) through vitellogenesis and are highest (1241 ± 175 pg/ml) during the preovulatory phase. Plasma progesterone concentrations rise during gestation to 6.5 ± 1.5 ng/ml, but fall in the final stage of gestation to 1.6 ± 0.2 ng/ml. There is minimal atresia of vitellogenic follicles, suggesting that clutch size is determined when the follicles are recruited for vitellogenesis." name="eprints.abstract" />
  29. <meta content="1997-11" name="eprints.date" />
  30. <meta content="published" name="eprints.date_type" />
  31. <meta content="General and Comparative Endocrinology" name="eprints.publication" />
  32. <meta content="108" name="eprints.volume" />
  33. <meta content="2" name="eprints.number" />
  34. <meta content="271-281" name="eprints.pagerange" />
  35. <meta content="10.1006/gcen.1997.6971" name="eprints.id_number" />
  36. <meta content="TRUE" name="eprints.refereed" />
  37. <meta content="0016-6480" name="eprints.issn" />
  38. <meta content="http://dx.doi.org/10.1006/gcen.1997.6971" name="eprints.official_url" />
  39. <meta content="Al-Sadoon, M. K., El-Banna, A. A., Ibrahim, M. M. M., Abdo, N. M.,
  40. and Al-Rasheid, K. A. (1990). Effect of steroid hormones on the
  41. metabolic rate of the cold-acclimated gonadectomised male and
  42. female Chalcides ocellatus (Forskal). Gen. Comp. Endocrinol. 80,
  43. 345–348.
  44. Arslan, M., Lobo, J., Zaidi, A. A., Jalali, S., and Qazi, M. H. (1978).
  45. Annual androgen rhythm in the spiny-tailed lizard, Uromastix
  46. hardwicki. Gen. Comp. Endocrinol. 36, 16–22.
  47. Bona-Gallo, A., Licht, P., MacKenzie, D. S., and Lofts, B. (1980).
  48. Annual cycles in pituitary and plasma gonadotropin, gonadal
  49. steroids, and thyroidal activity in the Chinese cobra (Naja naja).
  50. Gen. Comp. Endocrinol. 42, 477–493.
  51. Bourne, A. R., Stewart, B. J., and Watson, T. G. (1986). Changes in blood progesterone concentration in the lizard Tiliqua (Trachydosaurus)
  52. rugosa. Comp. Biochem. Physiol. 84A, 581–583.
  53. Bradshaw, S. D. (1986). ‘‘Ecophysiology of Desert Reptiles.’’ Academic
  54. Press, Sydney.
  55. Callard, I. P., and Ho, S-m. (1987). Vitellogenesis and viviparity. In
  56. ‘‘Fundamentals of Comparative Vertebrate Endocrinology’’ (I.
  57. Chester-Jones, P. M. Ingleton, and J. G. Phillips, Eds.), pp. 257–282.
  58. Plenum, New York.
  59. Carnevali, O., Mosconi, G., Angelini, F., Limatola, E., Ciarcia, G., and
  60. Polzonetti-Magni, A. (1991). Plasma vitellogenin and 17bestradiol
  61. levels during the annual reproductive cycle of Podarcis s.
  62. sicula Raf. Gen. Comp. Endocrinol. 84, 337–343.
  63. Chan,W. C., Zeigel, S., and Callard, I. (1973). Plasma progesterone in
  64. snakes. Comp. Biochem. Physiol. 44A, 631–638.
  65. Crews, D. (1984). Gamete production, sex hormone secretion and
  66. mating behavior uncoupled. Horm. Behav. 18, 22–28.
  67. Crews, D., and Moore, M. C. (1986). Evolution of mechanisms
  68. controlling mating behavior. Science 231, 121–125.
  69. Cuellar, O. (1966). Oviducal anatomy and sperm storage structures
  70. in lizards. J. Morphol. 119, 7–20.
  71. Dufaure, J. P., and Hubert, J. (1961). Table de de´veloppment du
  72. le´zard vivipare: Lacerta (Zootoca) vivipara Jacquin. Arch. Anat.
  73. Micr. Morph. Exp. 50, 309–328.
  74. Fergusson, B., and Bradshaw, S. D. (1991). Plasma arginine vasotocin,
  75. progesterone, and luteal development during pregnancy in
  76. the viviparous lizard Tiliqua rugosa. Gen. Comp. Endocrinol. 82,
  77. 140–151.
  78. Fergusson, B., and Bradshaw, S. D. (1992). In vitro uterine contractions
  79. in the viviparous lizard Tiliqua rugosa: effect of gestation and
  80. steroid pretreatment in vivo. Gen. Comp. Endocrinol. 86, 203–210.
  81. Flemming, A. (1993). The male reproductive cycle of the lizard,
  82. Pseudocordylus m. melanotus. J. Herpetol. 27, 473–478.
  83. Gavaud, J. (1986). Vitellogenesis in the lizard Lacerta vivipara Jacquin.
  84. II. Vitellogenin synthesis during the reproductive cycle and its
  85. control by ovarian steroids. Gen. Comp. Endocrinol. 63, 11–23.
  86. Greer, A. E. (1989). ‘‘The Biology and Evolution of Australian
  87. lizards.’’ Surrey Beatty, Chipping Norton, Australia.
  88. Guillette, L. J., Jr., and Casas-Andreu, G. (1980). Fall reproductive
  89. activity in the high altitude Mexican lizard, Sceloporus grammicus
  90. microlepidotus. J. Herpetol. 14, 143–147.
  91. Guillette, L. J., Jr., and Me´ndez-de la Cruz, F. (1993). The reproductive
  92. cycle of the viviparous Mexican lizard Sceloporus torquatus. J.
  93. Herpetol. 27, 168–174.
  94. Guillette, L. J., Jr., Spielvogel, S., and Moore, F. L. (1981). Luteal
  95. development, placentation, and plasma progesterone concentration
  96. in the viviparous lizard Sceloporus jarrovi. Gen. Comp. Endocrinol.
  97. 43, 20–29.
  98. Highfill, D. R., and Mead, R. A. (1975). Sources and levels of
  99. progesterone during pregnancy in the garter snake, Thamnophis
  100. elegans. Gen. Comp. Endocrinol. 27, 389–400.
  101. Jones, R. E., Guillette, L. J., Jr., Summers, C. H., Tokarz, R. D., and
  102. Crews, D. (1983). The relationship among ovarian condition,
  103. steroid hormones, and estrus behaviour in Anolis carolinensis. J.
  104. Exp. Zool. 277, 145–154.
  105. Jones, S. M., and Swain, R. (1996). Annual reproductive cycle and
  106. annual cycles of reproductive hormones in plasma of female
  107. Niveoscincus metallicus from Tasmania. J. Herpetol. 30, 140–146.
  108. Kleis-San Francisco, S. K., and Callard, I. P. (1986). Progesterone
  109. receptors in the oviduct of a viviparous snake (Nerodia): Correlations
  110. with ovarian function and plasma steroid levels. Gen. Comp.
  111. Endocrinol. 63, 220–229.
  112. Krohmer, R. W., Grassman, M., and Crews, D. (1987). Annual
  113. reproductive cycle in the male red-sided garter snake, Thamnophis
  114. sirtalis parietalis: Field and laboratory studies. Gen. Comp. Endocrinol.
  115. 68, 64–75.
  116. Leyton, V., and Valencia, J. (1992). Follicular population dynamics:
  117. Its relation to clutch and litter size in Chilean Liolaemus lizards. In
  118. ‘‘Reproductive Biology of South American Vertebrates’’ (W. Hamlett,
  119. Ed.), pp. 123–134, Springer-Verlag.
  120. Licht, P. (1984). Reptiles. In ‘‘Marshall’s Physiology of Reproduction
  121. (G. E. Lamming, Ed.), Vol. 1, pp. 206–282, Churchill Livingstone,
  122. Edinburgh.
  123. Lofts, B. (1987). Testicular function. In ‘‘Hormones and Reproduction
  124. in Fishes, Amphibians and Reptiles’’ (D. O. Norris and R. E. Jones,
  125. Eds.), pp. 283–325, Plenum, New York.
  126. Mead, R. A., Eraschenko, V. P., and Highfill, D. R. (1981). Effects of
  127. progesterone and estrogen on the histology of the oviduct of the
  128. garter snake Thamnophis elegans. Gen. Comp. Endocrinol. 45, 345–
  129. 354.
  130. Me´ndez-de la Cruz, F. R., Guillette, L. J., Jr., and Villegran-Santa
  131. Cruz, M. (1993). Differential atresia of ovarian follicles and its
  132. effect on clutch size of two populations of the viviparous lizard
  133. Sceloporus mucronatus. Funct. Ecol. 7, 535–540.
  134. Moore, M. C., and Lindzey, J. (1992). The physiological basis of
  135. sexual behavior in male reptiles. In ‘‘Biology of the Reptilia’’ (C.
  136. Gans and D. Crews, Eds.), Vol. 18, pp. 70–113. Univ. of Chicago
  137. Press, Chicago.
  138. Moore, M. C., Thompson, C.W., and Marler, C. A. (1991). Reciprocal
  139. changes in corticosterone and testosterone levels following acute
  140. and chronic handling stress in the tree lizard, Urosaurus ornatus.
  141. Gen. Comp. Endocrinol. 81, 217–226.
  142. Naulleau, G., Fleury, F., and Boissin, J. (1987). Annual cycle in plasma
  143. testosterone and thyroxine in the male aspic viper Vipera aspis L.
  144. (Reptilia, Viperidae) in relation to the sexual cycle and hibernation.
  145. Gen. Comp. Endocrinol. 65, 254–263.
  146. Rawlinson, P. A. (1974). Biogeography and ecology of the reptiles of
  147. Tasmania and the Bass strait area. In ‘‘Biogeography and Ecology
  148. in Tasmania’’ (W. D. Williams, Ed.), pp. 291–388. W. Junk, The
  149. Hague.
  150. Saint Girons, H. (1982). Reproductive cycles of male snakes and their
  151. relationships with climate and female reproductive cycles. Herpteologica
  152. 38, 5–16.
  153. Saint Girons, H. (1985). Comparative data on Lepidosaurian reproduction
  154. and some timetables. In ‘‘Biology of the Reptilia’’ (C.
  155. Gans, Ed.), Vol. 15, pp. 35–58.Wiley, New York.
  156. Saint Girons, H., Bradshaw, S. D., and Bradshaw, F. J. (1993). Sexual
  157. activity and plasma levels of sex steroids in the aspic viper Vipera
  158. aspis L. (Reptilia, Viperidae). Gen. Comp. Endocrinol. 91, 287–297.
  159. Sinervo, B., and Licht, P. (1991a). Hormonal and physiological
  160. control of clutch size, egg size, and egg shape in side-blotched lizards (Uta stansburiana): Constraints on the evolution of lizard
  161. life histories. J. Exp. Zool. 257, 252–264.
  162. Sinervo, B., and Licht, P. (1991b). Proximate constraints on the
  163. evolution of egg size, number, and total clutch mass in lizards.
  164. Science, 252, 1300–1302.
  165. Smyth, M., and Smith, M. J. (1968). Obligatory sperm storage in the
  166. skink Hemiergis peronii. Science 161, 575–576.
  167. Stewart, J. R., and Thompson, M. B. (1994). Placental structure of the
  168. Australian lizard, Niveoscincus metallicus (Squamata: Scincidae). J.
  169. Morphol. 220, 223–236.
  170. Swain, R., and Jones, S. M. (1994). Annual cycle of plasma testosterone
  171. and other reproductive parameters in the Tasmanian skink,
  172. Niveoscincus metallicus. Herpetologica 50, 502–509.
  173. Swain, R., and Jones, S. M. (1997). Maternal-fetal transfer of 3Hlabelled
  174. leucine in the viviparous lizard Niveoscincus metallicus
  175. (Scincidae: Lygosominae). J. Exp. Zool. 277, 139–145.
  176. Taylor, J. A. (1985). Reproductive biology of the Australian lizard
  177. Ctenotus taeniolatus. Herpetologica 41, 408–418.
  178. Van Wyk, J. H. (1995). The male reproductive cycle of the lizard,
  179. Cordylus giganteus (Sauria: Cordylidae). J. Herpetol. 29, 522–535.
  180. Wapstra, E., and Swain, R. (1996). Feeding ecology of the Tasmanian
  181. Spotted Skink, Niveoscincus ocellatus (Squamata: Scincidae). Aust.
  182. J. Zool. 44, 205–213.
  183. Weekes, C. H. (1930). On placentation in reptiles. II. Proc. Linn. Soc.
  184. NSW 50, 550–576.
  185. Whittier, J. M., and Tokarz, R. R. (1992). Physiological regulation of
  186. sexual behavior in female reptiles. In ‘‘Biology of the Reptilia’’ (C.
  187. Gans and D. Crews, Eds.), Vol. 18, pp. 24–69. Univ. Chicago Press,
  188. Chicago.
  189. Wilkinson, L., Hill, H. A., Mialla, S., and Vang, E. (1992). SYSTAT for
  190. the Macintosh, Version 5.2. Evanston, IL.
  191. Xavier, F. (1987). Functional morphology of the corpus luteum. In
  192. ‘‘Hormones and Reproduction in Fishes, Amphibians and Reptiles’’
  193. (D. O. Norris and R. E. Jones, Eds.), pp. 241–282. Plenum,
  194. New York.
  195. Yaron, Z. (1985). Reptilian placentation and gestation: Structure,
  196. function and endocrine control. In ‘‘Biology of the Reptilia’’ (C.
  197. Gans and F. Billett, Eds.), Vol. 15, pp. 527–603.Wiley, New York." name="eprints.referencetext" />
  198. <meta content="Jones, Susan M. and Wapstra, Erik and Swain, Roy (1997) Asynchronous male and female gonadal cycles and plasma steroid concentrations in a viviparous lizard, Niveoscincus ocellatus (Scincidae), from Tasmania. General and Comparative Endocrinology, 108 (2). pp. 271-281. ISSN 0016-6480" name="eprints.citation" />
  199. <meta content="http://eprints.utas.edu.au/2423/1/1997JonesetalGenComparEndocrin.pdf" name="eprints.document_url" />
  200. <link rel="schema.DC" href="http://purl.org/DC/elements/1.0/" />
  201. <meta content="Asynchronous male and female gonadal cycles and plasma steroid concentrations in a viviparous lizard, Niveoscincus ocellatus (Scincidae), from Tasmania" name="DC.title" />
  202. <meta content="Jones, Susan M." name="DC.creator" />
  203. <meta content="Wapstra, Erik" name="DC.creator" />
  204. <meta content="Swain, Roy" name="DC.creator" />
  205. <meta content="270604 Comparative Physiology" name="DC.subject" />
  206. <meta content="The reproductive cycle in males of the skink, Niveoscincus ocellatus, is characterised by testicular development during summer, followed by mating in autumn. Plasma testosterone concentrations show a bimodal seasonal cycle, with the major peak (18.6 ± 1.2 ng/ml) in late summer/autumn and a minor peak (7.4 ± 1.0 ng/ml) at spring emergence. In contrast to the males, the females have a gonadal cycle in which mating is temporally dissociated from peak development of the gonads: ovulation occurs in spring and the young are born in summer. Fresh mating marks on females in spring indicate that at least part of the population mates for a second time after spring emergence. In females, plasma estradiol concentrations are significantly elevated (956 ± 214 pg/ml) through vitellogenesis and are highest (1241 ± 175 pg/ml) during the preovulatory phase. Plasma progesterone concentrations rise during gestation to 6.5 ± 1.5 ng/ml, but fall in the final stage of gestation to 1.6 ± 0.2 ng/ml. There is minimal atresia of vitellogenic follicles, suggesting that clutch size is determined when the follicles are recruited for vitellogenesis." name="DC.description" />
  207. <meta content="1997-11" name="DC.date" />
  208. <meta content="Article" name="DC.type" />
  209. <meta content="PeerReviewed" name="DC.type" />
  210. <meta content="application/pdf" name="DC.format" />
  211. <meta content="http://eprints.utas.edu.au/2423/1/1997JonesetalGenComparEndocrin.pdf" name="DC.identifier" />
  212. <meta content="http://dx.doi.org/10.1006/gcen.1997.6971" name="DC.relation" />
  213. <meta content="Jones, Susan M. and Wapstra, Erik and Swain, Roy (1997) Asynchronous male and female gonadal cycles and plasma steroid concentrations in a viviparous lizard, Niveoscincus ocellatus (Scincidae), from Tasmania. General and Comparative Endocrinology, 108 (2). pp. 271-281. ISSN 0016-6480" name="DC.identifier" />
  214. <meta content="http://eprints.utas.edu.au/2423/" name="DC.relation" />
  215. <link rel="alternate" href="http://eprints.utas.edu.au/cgi/export/2423/BibTeX/epprod-eprint-2423.bib" title="BibTeX" type="text/plain" />
  216. <link rel="alternate" href="http://eprints.utas.edu.au/cgi/export/2423/ContextObject/epprod-eprint-2423.xml" title="OpenURL ContextObject" type="text/xml" />
  217. <link rel="alternate" href="http://eprints.utas.edu.au/cgi/export/2423/ContextObject::Dissertation/epprod-eprint-2423.xml" title="OpenURL Dissertation" type="text/xml" />
  218. <link rel="alternate" href="http://eprints.utas.edu.au/cgi/export/2423/ContextObject::Journal/epprod-eprint-2423.xml" title="OpenURL Journal" type="text/xml" />
  219. <link rel="alternate" href="http://eprints.utas.edu.au/cgi/export/2423/DC/epprod-eprint-2423.txt" title="Dublin Core" type="text/plain" />
  220. <link rel="alternate" href="http://eprints.utas.edu.au/cgi/export/2423/DIDL/epprod-eprint-2423.xml" title="DIDL" type="text/xml" />
  221. <link rel="alternate" href="http://eprints.utas.edu.au/cgi/export/2423/EndNote/epprod-eprint-2423.enw" title="EndNote" type="text/plain" />
  222. <link rel="alternate" href="http://eprints.utas.edu.au/cgi/export/2423/HTML/epprod-eprint-2423.html" title="HTML Citation" type="text/html; charset=utf-8" />
  223. <link rel="alternate" href="http://eprints.utas.edu.au/cgi/export/2423/METS/epprod-eprint-2423.xml" title="METS" type="text/xml" />
  224. <link rel="alternate" href="http://eprints.utas.edu.au/cgi/export/2423/MODS/epprod-eprint-2423.xml" title="MODS" type="text/xml" />
  225. <link rel="alternate" href="http://eprints.utas.edu.au/cgi/export/2423/RIS/epprod-eprint-2423.ris" title="Reference Manager" type="text/plain" />
  226. <link rel="alternate" href="http://eprints.utas.edu.au/cgi/export/2423/Refer/epprod-eprint-2423.refer" title="Refer" type="text/plain" />
  227. <link rel="alternate" href="http://eprints.utas.edu.au/cgi/export/2423/Simple/epprod-eprint-2423text" title="Simple Metadata" type="text/plain" />
  228. <link rel="alternate" href="http://eprints.utas.edu.au/cgi/export/2423/Text/epprod-eprint-2423.txt" title="ASCII Citation" type="text/plain; charset=utf-8" />
  229. <link rel="alternate" href="http://eprints.utas.edu.au/cgi/export/2423/XML/epprod-eprint-2423.xml" title="EP3 XML" type="text/xml" />
  230.  
  231.   </head>
  232.   <body bgcolor="#ffffff" text="#000000" onLoad="loadRoutine(); MM_preloadImages('images/eprints/ePrints_banner_r5_c5_f2.gif','images/eprints/ePrints_banner_r5_c7_f2.gif','images/eprints/ePrints_banner_r5_c8_f2.gif','images/eprints/ePrints_banner_r5_c9_f2.gif','images/eprints/ePrints_banner_r5_c10_f2.gif','images/eprints/ePrints_banner_r5_c11_f2.gif','images/eprints/ePrints_banner_r6_c4_f2.gif')">
  233.     
  234.     <div class="ep_noprint"><noscript><style type="text/css">@import url(http://eprints.utas.edu.au/style/nojs.css);</style></noscript></div>
  235.  
  236.  
  237.  
  238.  
  239. <table width="795" border="0" cellspacing="0" cellpadding="0">
  240.   <tr>
  241.     <td><script language="JavaScript1.2">mmLoadMenus();</script>
  242.       <table border="0" cellpadding="0" cellspacing="0" width="795">
  243.         <!-- fwtable fwsrc="eprints_banner_final2.png" fwbase="ePrints_banner.gif" fwstyle="Dreamweaver" fwdocid = "1249563342" fwnested="0" -->
  244.         <tr>
  245.           <td><img src="/images/eprints/spacer.gif" width="32" height="1" border="0" alt="" /></td>
  246.           <td><img src="/images/eprints/spacer.gif" width="104" height="1" border="0" alt="" /></td>
  247.           <td><img src="/images/eprints/spacer.gif" width="44" height="1" border="0" alt="" /></td>
  248.           <td><img src="/images/eprints/spacer.gif" width="105" height="1" border="0" alt="" /></td>
  249.           <td><img src="/images/eprints/spacer.gif" width="41" height="1" border="0" alt="" /></td>
  250.           <td><img src="/images/eprints/spacer.gif" width="16" height="1" border="0" alt="" /></td>
  251.           <td><img src="/images/eprints/spacer.gif" width="68" height="1" border="0" alt="" /></td>
  252.           <td><img src="/images/eprints/spacer.gif" width="68" height="1" border="0" alt="" /></td>
  253.           <td><img src="/images/eprints/spacer.gif" width="68" height="1" border="0" alt="" /></td>
  254.           <td><img src="/images/eprints/spacer.gif" width="82" height="1" border="0" alt="" /></td>
  255.           <td><img src="/images/eprints/spacer.gif" width="69" height="1" border="0" alt="" /></td>
  256.           <td><img src="/images/eprints/spacer.gif" width="98" height="1" border="0" alt="" /></td>
  257.           <td><img src="/images/eprints/spacer.gif" width="1" height="1" border="0" alt="" /></td>
  258.         </tr>
  259.         <tr>
  260.           <td colspan="12"><img name="ePrints_banner_r1_c1" src="/images/eprints/ePrints_banner_r1_c1.gif" width="795" height="10" border="0" alt="" /></td>
  261.           <td><img src="/images/eprints/spacer.gif" width="1" height="10" border="0" alt="" /></td>
  262.         </tr>
  263.         <tr>
  264.           <td rowspan="6"><img name="ePrints_banner_r2_c1" src="/images/eprints/ePrints_banner_r2_c1.gif" width="32" height="118" border="0" alt="" /></td>
  265.           <td rowspan="5"><a href="http://www.utas.edu.au/"><img name="ePrints_banner_r2_c2" src="/images/eprints/ePrints_banner_r2_c2.gif" width="104" height="103" border="0" alt="" /></a></td>
  266.           <td colspan="10"><img name="ePrints_banner_r2_c3" src="/images/eprints/ePrints_banner_r2_c3.gif" width="659" height="41" border="0" alt="" /></td>
  267.           <td><img src="/images/eprints/spacer.gif" width="1" height="41" border="0" alt="" /></td>
  268.         </tr>
  269.         <tr>
  270.           <td colspan="3"><a href="http://eprints.utas.edu.au/"><img name="ePrints_banner_r3_c3" src="/images/eprints/ePrints_banner_r3_c3.gif" width="190" height="31" border="0" alt="" /></a></td>
  271.           <td rowspan="2" colspan="7"><img name="ePrints_banner_r3_c6" src="/images/eprints/ePrints_banner_r3_c6.gif" width="469" height="37" border="0" alt="" /></td>
  272.           <td><img src="/images/eprints/spacer.gif" width="1" height="31" border="0" alt="" /></td>
  273.         </tr>
  274.         <tr>
  275.           <td colspan="3"><img name="ePrints_banner_r4_c3" src="/images/eprints/ePrints_banner_r4_c3.gif" width="190" height="6" border="0" alt="" /></td>
  276.           <td><img src="/images/eprints/spacer.gif" width="1" height="6" border="0" alt="" /></td>
  277.         </tr>
  278.         <tr>
  279.           <td colspan="2"><img name="ePrints_banner_r5_c3" src="/images/eprints/ePrints_banner_r5_c3.gif" width="149" height="1" border="0" alt="" /></td>
  280.           <td rowspan="2" colspan="2"><a href="/information.html" onMouseOut="MM_swapImgRestore();MM_startTimeout()" onMouseOver="MM_showMenu(window.mm_menu_0821132634_0,0,25,null,'ePrints_banner_r5_c5');MM_swapImage('ePrints_banner_r5_c5','','/images/eprints/ePrints_banner_r5_c5_f2.gif',1);"><img name="ePrints_banner_r5_c5" src="/images/eprints/ePrints_banner_r5_c5.gif" width="57" height="25" border="0" alt="About" /></a></td>
  281.           <td rowspan="2"><a href="/view/" onMouseOut="MM_swapImgRestore();MM_startTimeout()" onMouseOver="MM_showMenu(window.mm_menu_0821133021_1,0,25,null,'ePrints_banner_r5_c7');MM_swapImage('ePrints_banner_r5_c7','','/images/eprints/ePrints_banner_r5_c7_f2.gif',1);"><img name="ePrints_banner_r5_c7" src="/images/eprints/ePrints_banner_r5_c7.gif" width="68" height="25" border="0" alt="Browse" /></a></td>
  282.           <td rowspan="2"><a href="/perl/search/simple" onMouseOut="MM_swapImgRestore();MM_startTimeout()" onMouseOver="MM_showMenu(window.mm_menu_0821133201_2,0,25,null,'ePrints_banner_r5_c8');MM_swapImage('ePrints_banner_r5_c8','','/images/eprints/ePrints_banner_r5_c8_f2.gif',1);"><img name="ePrints_banner_r5_c8" src="/images/eprints/ePrints_banner_r5_c8.gif" width="68" height="25" border="0" alt="Search" /></a></td>
  283.           <td rowspan="2"><a href="/perl/register" onMouseOut="MM_swapImgRestore();MM_startTimeout();" onMouseOver="MM_showMenu(window.mm_menu_1018171924_3,0,25,null,'ePrints_banner_r5_c9');MM_swapImage('ePrints_banner_r5_c9','','/images/eprints/ePrints_banner_r5_c9_f2.gif',1);"><img name="ePrints_banner_r5_c9" src="/images/eprints/ePrints_banner_r5_c9.gif" width="68" height="25" border="0" alt="register" /></a></td>
  284.           <td rowspan="2"><a href="/perl/users/home" onMouseOut="MM_swapImgRestore();MM_startTimeout()" onMouseOver="MM_showMenu(window.mm_menu_0821133422_4,0,25,null,'ePrints_banner_r5_c10');MM_swapImage('ePrints_banner_r5_c10','','/images/eprints/ePrints_banner_r5_c10_f2.gif',1);"><img name="ePrints_banner_r5_c10" src="/images/eprints/ePrints_banner_r5_c10.gif" width="82" height="25" border="0" alt="user area" /></a></td>
  285.           <td rowspan="2"><a href="/help/" onMouseOut="MM_swapImgRestore();MM_startTimeout()" onMouseOver="MM_showMenu(window.mm_menu_0821133514_5,0,25,null,'ePrints_banner_r5_c11');MM_swapImage('ePrints_banner_r5_c11','','/images/eprints/ePrints_banner_r5_c11_f2.gif',1);"><img name="ePrints_banner_r5_c11" src="/images/eprints/ePrints_banner_r5_c11.gif" width="69" height="25" border="0" alt="Help" /></a></td>
  286.           <td rowspan="3" colspan="4"><img name="ePrints_banner_r5_c12" src="/images/eprints/ePrints_banner_r5_c12.gif" width="98" height="40" border="0" alt="" /></td>
  287.           <td><img src="/images/eprints/spacer.gif" width="1" height="1" border="0" alt="" /></td>
  288.         </tr>
  289.         <tr>
  290.           <td rowspan="2"><img name="ePrints_banner_r6_c3" src="/images/eprints/ePrints_banner_r6_c3.gif" width="44" height="39" border="0" alt="ePrints home" /></td>
  291.           <td><a href="/" onMouseOut="MM_swapImgRestore()" onMouseOver="MM_swapImage('ePrints_banner_r6_c4','','/images/eprints/ePrints_banner_r6_c4_f2.gif',1);"><img name="ePrints_banner_r6_c4" src="/images/eprints/ePrints_banner_r6_c4.gif" width="105" height="24" border="0" alt="ePrints home" /></a></td>
  292.           <td><img src="/images/eprints/spacer.gif" width="1" height="24" border="0" alt="" /></td>
  293.         </tr>
  294.         <tr>
  295.           <td><img name="ePrints_banner_r7_c2" src="/images/eprints/ePrints_banner_r7_c2.gif" width="104" height="15" border="0" alt="" /></td>
  296.           <td colspan="8"><img name="ePrints_banner_r7_c4" src="/images/eprints/ePrints_banner_r7_c4.gif" width="517" height="15" border="0" alt="" /></td>
  297.           <td><img src="/images/eprints/spacer.gif" width="1" height="15" border="0" alt="" /></td>
  298.         </tr>
  299.       </table></td>
  300.   </tr>
  301.     <tr><td><table width="100%" style="font-size: 90%; border: solid 1px #ccc; padding: 3px"><tr>
  302.       <td align="left"><a href="http://eprints.utas.edu.au/cgi/users/home">Login</a> | <a href="http://eprints.utas.edu.au/cgi/register">Create Account</a></td>
  303.       <td align="right" style="white-space: nowrap">
  304.         <form method="get" accept-charset="utf-8" action="http://eprints.utas.edu.au/cgi/search" style="display:inline">
  305.           <input class="ep_tm_searchbarbox" size="20" type="text" name="q" />
  306.           <input class="ep_tm_searchbarbutton" value="Search" type="submit" name="_action_search" />
  307.           <input type="hidden" name="_order" value="bytitle" />
  308.           <input type="hidden" name="basic_srchtype" value="ALL" />
  309.           <input type="hidden" name="_satisfyall" value="ALL" />
  310.         </form>
  311.       </td>
  312.     </tr></table></td></tr>
  313.   <tr>
  314.     <td class="toplinks"><!-- InstanceBeginEditable name="content" -->
  315.  
  316.  
  317. <div align="center">
  318.   
  319.   <table width="720" class="ep_tm_main"><tr><td align="left">
  320.     <h1 class="ep_tm_pagetitle">Asynchronous male and female gonadal cycles and plasma steroid concentrations in a viviparous lizard, Niveoscincus ocellatus (Scincidae), from Tasmania</h1>
  321.     <p style="margin-bottom: 1em" class="not_ep_block"><span class="person_name">Jones, Susan M.</span> and <span class="person_name">Wapstra, Erik</span> and <span class="person_name">Swain, Roy</span> (1997) <xhtml:em>Asynchronous male and female gonadal cycles and plasma steroid concentrations in a viviparous lizard, Niveoscincus ocellatus (Scincidae), from Tasmania.</xhtml:em> General and Comparative Endocrinology, 108 (2). pp. 271-281. ISSN 0016-6480</p><p style="margin-bottom: 1em" class="not_ep_block"></p><table style="margin-bottom: 1em" class="not_ep_block"><tr><td valign="top" style="text-align:center"><a href="http://eprints.utas.edu.au/2423/1/1997JonesetalGenComparEndocrin.pdf"><img alt="[img]" src="http://eprints.utas.edu.au/style/images/fileicons/application_pdf.png" class="ep_doc_icon" border="0" /></a></td><td valign="top"><a href="http://eprints.utas.edu.au/2423/1/1997JonesetalGenComparEndocrin.pdf"><span class="ep_document_citation">PDF</span></a> - Full text restricted - Requires a PDF viewer<br />125Kb</td><td><form method="get" accept-charset="utf-8" action="http://eprints.utas.edu.au/cgi/request_doc"><input accept-charset="utf-8" value="3130" name="docid" type="hidden" /><div class=""><input value="Request a copy" name="_action_null" class="ep_form_action_button" onclick="return EPJS_button_pushed( '_action_null' )" type="submit" /> </div></form></td></tr></table><p style="margin-bottom: 1em" class="not_ep_block">Official URL: <a href="http://dx.doi.org/10.1006/gcen.1997.6971">http://dx.doi.org/10.1006/gcen.1997.6971</a></p><div class="not_ep_block"><h2>Abstract</h2><p style="padding-bottom: 16px; text-align: left; margin: 1em auto 0em auto">The reproductive cycle in males of the skink, Niveoscincus ocellatus, is characterised by testicular development during summer, followed by mating in autumn. Plasma testosterone concentrations show a bimodal seasonal cycle, with the major peak (18.6 ± 1.2 ng/ml) in late summer/autumn and a minor peak (7.4 ± 1.0 ng/ml) at spring emergence. In contrast to the males, the females have a gonadal cycle in which mating is temporally dissociated from peak development of the gonads: ovulation occurs in spring and the young are born in summer. Fresh mating marks on females in spring indicate that at least part of the population mates for a second time after spring emergence. In females, plasma estradiol concentrations are significantly elevated (956 ± 214 pg/ml) through vitellogenesis and are highest (1241 ± 175 pg/ml) during the preovulatory phase. Plasma progesterone concentrations rise during gestation to 6.5 ± 1.5 ng/ml, but fall in the final stage of gestation to 1.6 ± 0.2 ng/ml. There is minimal atresia of vitellogenic follicles, suggesting that clutch size is determined when the follicles are recruited for vitellogenesis.</p></div><table style="margin-bottom: 1em" cellpadding="3" class="not_ep_block" border="0"><tr><th valign="top" class="ep_row">Item Type:</th><td valign="top" class="ep_row">Article</td></tr><tr><th valign="top" class="ep_row">Additional Information:</th><td valign="top" class="ep_row">Definitive version is available online at http://www.sciencedirect.com/</td></tr><tr><th valign="top" class="ep_row">Subjects:</th><td valign="top" class="ep_row"><a href="http://eprints.utas.edu.au/view/subjects/270604.html">270000 Biological Sciences &gt; 270600 Physiology &gt; 270604 Comparative Physiology</a></td></tr><tr><th valign="top" class="ep_row">ID Code:</th><td valign="top" class="ep_row">2423</td></tr><tr><th valign="top" class="ep_row">Deposited By:</th><td valign="top" class="ep_row"><span class="ep_name_citation"><span class="person_name">Dr Erik Wapstra</span></span></td></tr><tr><th valign="top" class="ep_row">Deposited On:</th><td valign="top" class="ep_row">15 Nov 2007 13:45</td></tr><tr><th valign="top" class="ep_row">Last Modified:</th><td valign="top" class="ep_row">09 Jan 2008 02:30</td></tr><tr><th valign="top" class="ep_row">ePrint Statistics:</th><td valign="top" class="ep_row"><a target="ePrintStats" href="/es/index.php?action=show_detail_eprint;id=2423;">View statistics for this ePrint</a></td></tr></table><p align="right">Repository Staff Only: <a href="http://eprints.utas.edu.au/cgi/users/home?screen=EPrint::View&amp;eprintid=2423">item control page</a></p>
  322.   </td></tr></table>
  323. </div>
  324.  
  325.  
  326.  
  327.     <!-- InstanceEndEditable --></td>
  328.   </tr>
  329.   <tr>
  330.     <td><!-- #BeginLibraryItem "/Library/footer_eprints.lbi" -->
  331.     <table width="795" border="0" align="left" cellpadding="0" class="footer">
  332.   <tr valign="top">
  333. <td colspan="2"><div align="center"><a href="http://www.utas.edu.au">UTAS home</a> | <a href="http://www.utas.edu.au/library/">Library home</a> | <a href="/">ePrints home</a> | <a href="/contact.html">contact</a> | <a href="/information.html">about</a> | <a href="/view/">browse</a> | <a href="/perl/search/simple">search</a> | <a href="/perl/register">register</a> | <a href="/perl/users/home">user area</a> | <a href="/help/">help</a></div><br /></td>
  334. </tr>
  335. <tr><td colspan="2"><p><img src="/images/eprints/footerline.gif" width="100%" height="4" /></p></td></tr>
  336.       <tr valign="top">
  337.         <td width="68%" class="footer">Authorised by the University Librarian<br />
  338. © University of Tasmania ABN 30 764 374 782<br />
  339.       <a href="http://www.utas.edu.au/cricos/">CRICOS Provider Code 00586B</a> | <a href="http://www.utas.edu.au/copyright/copyright_disclaimers.html">Copyright &amp; Disclaimers</a> | <a href="http://www.utas.edu.au/accessibility/index.html">Accessibility</a> | <a href="http://eprints.utas.edu.au/feedback/">Site Feedback</a>  </td>
  340.         <td width="32%"><div align="right">
  341.             <p align="right" class="NoPrint"><a href="http://www.utas.edu.au/"><img src="http://www.utas.edu.au/shared/logos/unioftasstrip.gif" alt="University of Tasmania Home Page" width="260" height="16" border="0" align="right" /></a></p>
  342.             <p align="right" class="NoPrint"><a href="http://www.utas.edu.au/"><br />
  343.             </a></p>
  344.         </div></td>
  345.       </tr>
  346.       <tr valign="top">
  347.         <td><p>  </p></td>
  348.         <td><div align="right"><span class="NoPrint"><a href="http://www.eprints.org/software/"><img src="/images/eprintslogo.gif" alt="ePrints logo" width="77" height="29" border="0" align="bottom" /></a></span></div></td>
  349.       </tr>
  350.     </table>
  351.     <!-- #EndLibraryItem -->
  352.     <div align="center"></div></td>
  353.   </tr>
  354. </table>
  355.  
  356.   </body>
  357. </html>