References
- Bentley PJ. 1982 Comparative Vertebrate Endocrinology, 2nd Ed. pp. 338-365. Cambridge University Press. Cambridge.
- Bush FM. 1963. Effects of light and temperature on the gross composition of the toad Bufo fowleri. J. Exp. Zool. 153:1-13. https://doi.org/10.1002/jez.1401530102
- Degani G, R Sharon and M Warburg. 1997. Ovarian Steroid Levels in Salamadra salamadra infraimmaculata during the Reproductive Cycle. Gen. Comp. Endocrinol. 106:356-360. https://doi.org/10.1006/gcen.1997.6883
- Delgado MJ, P Gutierrez and M AlonsoBedate. 1989. Seasonal cycles in testicular activity in the frog. Rana perezi. Gen. Comp. Endocrinol. 73:1-11. https://doi.org/10.1016/0016-6480(89)90049-X
- Dumont JN. 1972. Oogenesis in Xenopus laevis (Daudin): 1. Stages of the oocyte development in laboratory maintained animals. J. Morph. 136:153-180. https://doi.org/10.1002/jmor.1051360203
- Follett BK and MR Redshaw. 1974. The physiology of vitellogenesis. Physiol. Amphibia 2:219.
- Fraile B, R Paniagua, FJ Saez and MC Rodriguez. 1989. Effects of moderately high temperature on the testis of marbled newt, Triturus marmoratus. Amphibia-Reptilia. 10:117-124. https://doi.org/10.1163/156853889X00151
- Goin CJ, OB Goin and GR Zug. 1978. Introduction to Herpetology. W. H. Freeman and Company, San Francisco.
- Horseman ND, CA Smith and DD Culley Jr. 1978. Effects of age and photoperiod on ovary size and condition in bullfrogs (Rana catesbeiana Shaw) (Amphibia, Anura, Ranidae). J. Herpetol. 12:287-290. https://doi.org/10.2307/1563607
- Iwasawa H and O Asai. 1959. Histological observations on the seasonal change of the testis and the thumb pad in the frog, Rana nigromaculata. J. Fac. Sci., Nigata Univ., Ser. II. 2:213-218.
- Jorgensen CB, PE Hede and LO Larsen. 1978. Environmental control of annual ovarial cycle in the toad Bufo Bufo Bufo L.: Role of temperature. pp. 28-36. In Environmental endocrinology (eds.) I Assenmacher and DS Farner (Berlin: Springer-Verlag).
- Kera Y and H Iwasawa 1981. Functional histology of the testis in the process of sexual maturation in the frog. Rana nigromaculata. Zool. Mag. 90:6-14.
- Korea Meteorological Administration. 2012. Annual Climatological Report. pp. 190-192. Korea Meteorological Administration, Seoul, Korea.
- Korea Meteorological Administration. 2013. Annual Climatological Report. pp. 209-211. Korea Meteorological Administration, Seoul, Korea.
- Ko SK. 1997a. Studies on the Reproductive Cycle in Rana nigromaculata. J. Indust. Technol. 4:269-277.
- Ko SK. 1997b. Studies on the Reproductive Cycle in Rana Rugosa. J. Honam Univ. 18:539-549.
- Norris DO and RE Jones. 1987. Hormones and reproduction in Fishes, Amphibians, and Reptiles. In: J. M. Whittier and D. Crews Seasonal reproduction; pattern and control. pp. 283-314. Plenum Press. New York.
- Polzonetti-Magni A, R Curini, O Carnevali, C Novora, M Zerani and A Gobbetti. 1990. Ovarian development sex steroid hormones during the reproductive cycle of Rana esculenta complex. Zool. Sci. 7:265-271.
- Rastogi RK. 1976. Seasonal cycle in anuran (amphibia) testis: the endocrine and environmental controls. Bull. Zool. 43:151-172. https://doi.org/10.1080/11250007609434893
- Rastogi RK, L Lela, G Delrio, MA Russo Meglio and G Chieffi. 1978. Environmental influence on testicular activity in the green frog Rana esculenta. J. Exp. Zool. 206:49-63 https://doi.org/10.1002/jez.1402060106
- Shin JM and SK Ko. 2014. A Study on the Ovarian Cycle of Korean Brown Frog (Rana Coreana). Korean J. Environ. Ecol. 28:287-292. https://doi.org/10.13047/KJEE.2014.28.3.287
- Wallace RA and GW Bergink. 1974. Amphibian vitellogenin: properties hormonal regulation of hepatic synthesis and ovarian uptake, and conversion to yolk proteins. Amer. Zool. 14:1159-1175. https://doi.org/10.1093/icb/14.4.1159
- Yoneyama H and H Iwasawa. 1985. Annual changes in the testis accessory sex organs of the bullfrog Rana catesbeiana. Zool. Sci. 2:229-237.
- Yoo MS, CH Ra, JY Kim, SG Kang and HB Kwon. 1995. Reproductive Cycle and Maturation Induction of Oocytes in Rana Rugosa. Korean J. Zool. 38:96-105.