References
- ARESCO, M.J. & GUYER, C. 1999. Growth of the tortoise Gopherus polyphemus in slash pine plantations of south-central Alabama. Herpetologica 55: 499–506.
- BAYOFF, N. 1995. Observations and morphometric data on the Namaqualand speckled tortoise, Homopus signatus signatus (Gmelin, 1789), in South Africa. Chelonian Conservation and Biology 1: 215–220.
- BOYCOTT, R. & BOURQUIN, O. 2000. The Southern African Tortoise Book: A Guide to Southern African Tortoises, Terrapins and Turtles. Privately printed, Hilton.
- BRANCH, B. 1998. Bill Branch’s Field Guide to the Snakes and Other Reptiles of Southern Africa, 3rd edn. Struik, Cape Town.
- CHEN, T.H. & LUE, K.Y. 2002. Growth patterns of the yellow-margined box turtle (Cuora flavomarginata) in northern Taiwan. Journal of Herpetology 36: 201–208.
- CONGDON, J.D. & SELS, R.C.V. 1991. Growth and body size in Blanding’s turtles (Emydoidea blandingi) – relationships to reproduction. Canadian Journal of Zoology 69: 239–245.
- CONGDON, J.D. & SELS, R.C.V. 1993. Relationships of reproductive traits and body size with attainment of sexual maturity and age in Blanding’s turtles (Emydoidea blandingi). Journal of Evolutionary Biology 6: 547–557.
- COX, W.A., HAZELRIG, J.B., TURNER, M.E., ANGUS, R.A. & MARION, K.R. 1991. A model for growth in the musk turtle, Sternotherus minor, in a north Florida spring. Copeia 1991: 954–968.
- DIEMER, J.E. 1986. The ecology and management of the gopher tortoise in the southeastern United States. Herpetologica 42: 125–133.
- DÍAZ-PANIAGUA, C., KELLER, C. & ANDREU, A.C. 2001. Long-term demographic fluctuations of the spur-thighed tortoise Testudo graeca in southwestern Spain. Ecography 24: 707–721.
- ERNST, C.H., ALTENBURG, R.G.M. & BARBOUR, R.W. 2000. Turtles of the World. World Biodiversity Database CD-ROM Series. Windows version 1.2. ETI. Springer Verlag, UNESCO, Heidelberg.
- ERNST, C.H., WILGENBUSCH, J.C., BOUCHER, T.P. & SEKSCIENSKI, S.W. 1998. Growth, allometry and sexual dimorphism in the Florida box turtle, Terrapene carolina bauri. Herpetological Journal 8: 72–78.
- FRAZER, N.B., GREENE, J.L. & GIBBONS, J.W. 1993. Temporal variation in growth rate and age at maturity of male painted turtles, Chrysemys picta. American Midland Naturalist 130: 314–324.
- GERMANO, D.J. 1988. Age and growth histories of desert tortoises using scute annuli. Copeia 1988: 914–920.
- GERMANO, D.J. 1992. Longevity and age–size relationships of populations of desert tortoises. Copeia 1992: 367–374.
- GERMANO, D.J. 1994. Growth and age at maturity of North-American tortoises in relation to regional climates. Canadian Journal of Zoology 72: 918–931.
- KUCHLING, G. 1999. The Reproductive Biology of the Chelonians. Springer-Verlag, Berlin, Heidelberg.
- LAGARDE, F., BONNET, X., HENEN, B.T., CORBIN, J., NAGY, K.A. & NAULLEAU, G. 2001. Sexual size dimorphism in steppe tortoises (Testudo horsfieldi): growth, maturity, and individual variation. Canadian Journal of Zoology 79: 1433–1441.
- LE ROUX, A. & SCHELPE, T. 1997. Namaqualand: South African Wildflower Guide I, 1st edn. Botanical Society of South Africa, Kirstenbosch.
- LOEHR, V.J.T. 1999. Husbandry, behavior, and captive breeding of the Namaqualand speckled padloper (Homopus signatus signatus). Chelonian Conservation and Biology 3: 468–473.
- LOEHR, V.J.T. 2002. Population characteristics and activity patterns of the Namaqualand speckled padloper (Homopus signatus signatus) in the early spring. Journal of Herpetology 36: 378–389.
- LOEHR, V.J.T. & SCHMALZ, M. 2001. Homopus signatus cafer, southern speckled padloper, autumn activity. African Herp News 32: 16–16.
- MEDICA, P.A., BURY, R.B. & TURNER, F.B. 1975. Growth of the desert tortoise (Gopherus agassizi) in Nevada. Copeia 1975: 639–643.
- MUSHINSKY, H.R., WILSON, D.S. & McCOY, E.D. 1994. Growth and sexual dimorphism of Gopherus polyphemus in central Florida. Herpetologica 50: 119–128.
- TUCKER, J.K., MAHER, R.J. & THEILING, C.H. 1995. Year-to-year variation in growth in the red-eared turtle, Trachemys scripta elegans. Herpetologica 51: 354–358.
- TURNER, F.B., MEDICA, P.A. & BURY, R.B. 1987. Age–size relationships of desert tortoises (Gopherus agassizi) in southern Nevada. Copeia 1987: 974–979.