Variation of Reproductive Traits and Female Body Size in the Most Widely-Ranging Terrestrial Reptile: Testing the Effects of Reproductive Mode, Lineage, and Climate

Evolutionary Biology

Volumn 40, Issue 3, 2013, Pages 420-438

  Roitberg, Evgeny S ^a   Kuranova, Valentina N ^b   Bulakhova, Nina A ^b,c   Orlova, Valentina F ^d   Eplanova, Galina V ^e   Zinenko, Oleksandr I ^f,g   Shamgunova, Regina R ^h   Hofmann, Sylvia ⁱ   Yakovlev, Vladimir A ^j  

^a University of Koblenz   (Germany)

^b TOMSK STATE UNIVERSITY   (Russian Federation)

^c INSTITUTE OF BIOLOGICAL PROBLEMS OF THE NORTH   (Russian Federation)

^d MOSCOW STATE UNIVERSITY   (Russian Federation)

^e INSTITUTE OF ECOLOGY OF THE VOLGA RIVER BASIN   (Russian Federation)

^f V N KARAZIN KHARKIV NATIONAL UNIVERSITY   (Ukraine)

^g National Park Dvorichansky   (Ukraine)

^h SURGUT STATE UNIVERSITY   (Russian Federation)

ⁱ UNIVERSITY OF KIEL   (Germany)

^j NONE   (Russian Federation)

more..

Author keywords

Geographic variation; Lizards; Maternal body size; Offspring size; Reproductive mode; Reproductive output

Indexed keywords

LACERTIDAE; REPTILIA; SQUAMATA; ZOOTOCA VIVIPARA;

EID: 84881367697     PISSN: 00713260     EISSN: None     Source Type: Journal    
DOI: 10.1007/s11692-013-9247-2     Document Type: Article

References (120)

1. Adolph, S. C., & Porter, W. P. (1993). Temperature, activity, and lizards life histories. American Naturalist, 142, 273-295.
2. Adolph, S. C., & Porter, W. P. (1996). Growth, seasonality, and lizards life histories. Oikos, 77, 267-278.
3. Angilletta, M. J., Niewiarowski, P. H., Dunham, A. E., Leaché, A., & Porter, W. P. (2004). Bergmann's clines in ectotherms: Illustrating a life-historical perspective with sceloporine lizards. American Naturalist, 164, E168-E183.
4. Angilletta, M. J., Oufiero, C. E., & Leaché, A. D. (2006). Direct and indirect effects of environmental temperature on the evolution of reproductive strategies: An information-theoretic approach. American Naturalist, 168, 123-135.
5. Anufriev, V. M., & Bobretsov, A. V. (1996). Fauna of the European North-East of Russia, Vol. 4: Amphibians and reptiles. St. Petersburg: Nauka Publ (in Russian).
6. Arnold, S. J., & Phillips, P. C. (1999). Hierarchical comparison of genetic variance-covariance matrices. II. Coastal-inland divergence in the garter snake, Thamnophis elegans. Evolution, 53, 1516-1527.
7. Arribas, O. J. (2009). Morphological variability of the Cantabro-Pyrenean populations of Zootoca vivipara (Jacquin, 1787) with description of a new subspecies. Herpetozoa, 21, 123-146.
8. Arribas, O. J., & Galán, P. (2005). Reproductive characteristics of the Pyrenean high-mountain lizards: Iberolacerta aranica (Arribas, 1993), I. aurelioi (Arribas, 1994) and I. bonnali (Lantz, 1927). Animal Biology, 55, 163-190.
9. Ashton, K. G. (2001). Body size variation among mainland populations of the western rattlesnake (Crotalus viridis). Evolution, 55, 2523-2533.
10. Ashton, K. G. (2004). Comparing phylogenetic signal in intraspecific and interspecific body size datasets. Journal of Evolutionary Biology, 17, 1157-1163.
11. Ashton, K. G., & Feldman, C. R. (2003). Bergmann's rule in nonavian reptiles: Turtles follow it, lizards and snakes reverse it. Evolution, 57, 1151-1163.
12. Avery, R. A. (1975). Clutch size and reproductive effort in the lizard Lacerta vivipara Jacquin. Oecologia, 19, 165-170.
13. Bauwens, D., & Díaz-Uriarte, R. (1997). Covariation of life-history traits in lacertid lizards: A comparative study. American Naturalist, 149, 91-111.
14. Bauwens, D., & Verheyen, R. F. (1987). Variation of reproductive traits in a population of the lizard Lacerta vivipara. Holarctic Ecology, 10, 120-127.
15. Blackburn, T. M., Gaston, K. J., & Loder, N. (1999). Geographic gradients in body size: A clarification of Bergmann's rule. Diversity and Distribution, 5, 165-174.
16. Blanckenhorn, W. U. (2000). The evolution of body size: What keeps organisms small? Quatary Review of Biology, 75, 385-407.
17. Bonnet, E., & van de Peer, Y. (2002). ZT: A software tool for simple and partial Mantel tests. Journal of Statistical Software, 7, 1-12.
18. Braña, F., & Bea, A. (1987). Bimodalité de reproduction chez Lacerta vivipara. Bulletin de la Société Herpétologique de France, 44, 1-5.
19. Braña, F., Bea, A., & Arrayago, M. J. (1991). Egg retention in lacertid lizards: Relationships with reproductive ecology and the evolution of viviparity. Herpetologica, 47, 218-226.
20. Brandt, R., & Navas, C. A. (2011). Life-history evolution on tropidurinae lizards: Influence of lineage, body size and climate. PLoS ONE, 6, e20040.
21. Caley, M. L., & Schwarzkopf, L. (2004). Complex growth rate evolution in a latitudinally widespread species. Evolution, 58, 862-869.
22. Caley, M. L., Schwarzkopf, L., & Shine, R. (2001). Does total reproductive effort evolve independently of offspring size? Evolution, 55, 1245-1248.
23. Castilla, A. M., & Bauwens, D. (2000). Reproductive characteristics of the lacertid lizard Podarcis atrata. Copeia, 2000, 748-756.
24. Cavin, L. (1993). Structure d'une population subalpine de Lézards vivipares (Lacerta vivipara Jacquin, 1787). Revue Suisse de Zoologie, 100, 357-371.
25. Chamaillé-Jammes, S., Massot, M., Aragón, P., & Clobert, J. (2006). Global warming and positive fitness response in mountain populations of common lizards Lacerta vivipara. Global Change Biology, 12, 392-402.
26. Congdon, J. D. (1989). Proximate and evolutionary constraints on energy relations of reptiles. Physiological Zoology, 62, 356-373.
27. Cox, R. M., Skelly, S. L., & John-Alder, H. B. (2003). A comparative test of adaptive hypotheses for sexual size dimorphism in lizards. Evolution, 57, 1653-1669.
28. Crnobrnja-Isailović, J., & Aleksić, I. (2004). Clutch size in two Central Balkan populations of European Common Lizard Lacerta vivipara. Biota, 5, 5-10.
29. Díaz, J. A., Iraeta, P., Verdú-Ricoy, J., Siliceo, I., & Salvador, A. (2012). Intraspecific variation of reproductive traits in a mediterranean lizard: Clutch, population, and lineage effects. Evolutionary Biology, 39, 106-115.
30. Díaz, J. A., Pérez-Tris, J., Bauwens, D., Pérez-Aranda, D., Carbonell, R., Santos, T., et al. (2007). Reproductive performance of a lacertid lizard at the core and the periphery of the species' range. Biological Journal of the Linnean Society, 92, 87-96.
31. Du, W. G., Ji, X., & Shine, R. (2005). Does body-volume constrain reproductive output in lizards? Biology Letters, 1, 98-100.
32. Du, W. G., Ji, X. A., Zhang, Y. P., Lin, Z. H., & Xu, X. F. (2010). Geographic variation in offspring size of a widespread lizard (Takydromus septentrionalis): Importance of maternal investment. Biological Journal of the Linnean Society, 101, 59-67.
33. Dufaure, J. P., & Hubert, J. (1961). Table de développement du lézard vivipare: Lacerta (Zootoca) vivipara Jacquin. Archives D'anatomie Microscopique et de Morphologie Expérimentale, 50, 309-328.
34. Einum, S., & Fleming, I. A. (2000). Highly fecund mothers sacrifice offspring survival to maximise fitness. Nature, 405, 565-567.
35. Eizaguirre, C., Laloi, D., Massot, M., Richard, M., Federici, P., & Clobert, J. (2007). Condition dependence of reproductive strategy and the benefits of polyandry in a viviparous lizard. Proceedings of the Royal Society, London, Series B, 274, 425-430.
36. Eplanova, G. V. (2009). Reproductive biology of Zootoca vivipara (Reptilia, Lacertidae) in the Middle Volga Region. Proceedings of Samara Scientific Center, Russian Academy of Sciences, 11, 83-88. (in Russian).
37. Ferguson, G. W., & Talent, L. G. (1993). Life history traits of the lizards Sceloporus undulatus from two populations raised in a common laboratory environment. Oecologia, 93, 88-94.
38. Fitch, H. S. (1985). Variation in clutch and litter size in New World reptiles (Vol. 76, pp. 1-76). Lawrence: University of Kansas Museum of Natural History, Miscellaneous Publications.
39. Forsman, A., & Shine, R. (1995). Parallel geographic variation in body shape and reproductive life history within the Australian scincid lizard Lampropholis delicata. Functional Ecology, 9, 818-828.
40. Galán, P. (1999). Demography and population dynamics of the lacertid lizard Podarcis bocagei in Northwest Spain. Journal of Zoology London, 249, 203-218.
41. Galán, P., & Vicente, L. (2003). Reproductive characteristics of the insular lacertid lizard, Teira dugesii. Herpetological Journal, 13, 149-154.
42. Garcia-Berthou, E. (2001). On the misuse of residuals in ecology: Testing regression residuals vs. the analysis of covariance. Journal of Animal Ecology, 70, 708-711.
43. Gregory, P. T., & Larsen, K. W. (1993). Geographic variation in reproductive characteristics among Canadian populations of the common garter snake (Thamnophis sirtalis). Copeia, 1993, 946-958.
44. Gregory, P. T., & Larsen, K. W. (1996). Are there any meaningful correlates of geographic life-history variation in the garter snake, Thamnophissirtalis. Copeia, 1996, 183-189.
45. Guillette, L. J., Jr. (1982). The evolution of viviparity and placentation in the high elevation, Mexican lizard Sceloporus aeneus. Herpetologica, 38, 94-103.
46. Heulin, B. (1985). Démographie d′une population de Lacerta vivipara de basse altitude. Acta Oecologica, Oecologica Generalis, 6, 261-280.
47. Heulin, B., Ghielmi, S., Vogrin, N., Surget-Groba, Y., & Guillaume, C. P. (2002). Variation in eggshell characteristics and in intra-uterine egg retention between two oviparous clades of the lizard Lacerta vivipara: Insight into the oviparity-viviparity continuum in Squamates. Journal of Morphology, 252, 255-262.
48. Hijmans, R. J., Guarino, L., Jarvis, A., O'Brien, R., Mathur, P., Bussink, C., et al. (2005). DIVAGIS version 5. 2 manual. Available at: www. diva-gis. org.
49. In den Bosch, H. A. J., & Bout, R. G. (1998). Relationships between maternal size, egg size, clutch size, and hatchling size in European lacertid lizards. Journal of Herpetology, 32, 410-417.
50. Iverson, J. B., Higgins, H., Sirulnik, A., & Griffiths, C. (1997). Local and geographic variation in the reproductive biology of the snapping turtle (Chelydra serpentina). Herpetologica, 53, 96-117.
51. Ji, X., & Braña, F. (2000). Among clutch variation in reproductive output and egg size in the wall lizard Podarcis muralis from a lowland population of northern Spain. Journal of Herpetology, 34, 54-60.
52. Johnston, T. A., & Leggett, W. C. (2002). Maternal and environmental gradients in the egg size of an iteroparous fish. Ecology, 83, 1777-1791.
53. Juszczyk, W. (1974). Plazy I gady krajowe (p. 722). Warszawa: Panstwowe wydawnictwo naukowe.
54. Kiefer, M. C., van Sluys, M., & Rocha, C. F. D. (2008). Clutch and egg size of the tropical lizard Tropidurus torquatus (Tropiduridae) along its geographic range in coastal eastern Brazil. Canadian Journal of Zoology, 86, 1376-1388.
55. Kuranova, V. N., & Yartsev, V. V. (2012). Some aspects of reproductive biology of the common lizard, Zootoca vivipara. The Problems of Herpetology 142-149. Minsk (in Russian).
56. Kuranova, V. N., Yartsev, V. V., Kononova, Yu. V., Protopopova, E. V., Konovalova, S. N., Ternovoy, V. A., et al. (2011). Lacertids (Sauria) in natural foci of infections in human-transmitted ecosystems of the south-east of West Siberia. The Problems of Herpetology, 129-135. St. Petersburg (in Russian).
57. Le Galliard, J. F., Massot, M., Landys, M. M., Meylan, S., & Clobert, J. (2006). Ontogenic sources of variation in sexual size dimorphism in a viviparous lizard. Journal of Evolutionary Biology, 19, 690-704.
58. Leaché, A. D., Helmer, D., & Moritz, C. (2010). Phenotypic evolution in high elevation populations of western fence lizards (Sceloporus occidentalis) in the Sierra Nevada Mountains. Biological Journal of the Linnean Society, 100, 630-641.
59. Li, H., Qu, Y. F., Ding, G. H., & Ji, X. (2011). Life-history variation with respect to the experienced thermal environments in the lizard, Eremias multiocellata (Lacertidae). Zoological Science, 28, 332-338.
60. Lindtke, D., Mayer, W., & Böhme, W. (2010). Identification of a contact zone between oviparous and viviparous common lizards (Zootoca vivipara) in central Europe: reproductive strategies and natural hybridization. Salamandra, 46, 73-82.
61. Liu, P., Zhao, W. G., Liu, Z. T., Dong, B. J., & Chen, H. (2008). Sexual dimorphism and female reproduction in Lacerta vivipara in northeast China. Asiatic Herpetological Research, 11, 98-104.
62. Ljubisavljević, K., Glasnović, P., Kalan, K., & Kryštufek, B. (2012). Female reproductive characteristics of the Horvath's rock lizard from Slovenia. Archives of Biological Sciences, Belgrade, 64, 639-645.
63. Ljubisavljević, K., Polović, L., Tomašević Kolarov, N., Džukić, G., & Kalezić, M. L. (2007). Female life-history characteristics of the Mosor rock lizard, Dinarolacerta mosorensis (Kolombatović, 1886) from Montenegro (Squamata: Lacertidae). Journal of Natural History, 41, 2979-2993.
64. Lorenzon, P., Clobert, J., & Massot, M. (2001). The contribution of phenotypic plasticity to adaptation in Lacerta vivipara. Evolution, 55, 392-404.
65. Madsen, T., & Shine, R. (1993). Phenotypic plasticity in body sizes and sexual size dimorphism in European grass snakes. Evolution, 47, 321-325.
66. Marco, A., Pérez-Mellado, V., & Gil-Costa, M. J. (1994). Reproductive strategy in a montane population of the lizard Lacerta schreiberi (Sauria, Lacertidae). Herpetological Journal, 4, 49-55.
67. Marquis, O., Massot, M., & Le Galliard, J. F. (2008). Intergenerational effects of climate generate cohort variation in lizard reproductive performance. Ecology, 89, 2575-2583.
68. Massot, M., Clobert, J., Pilorge, T., Lecomte, J., & Barbault, R. (1992). Density dependence in the common lizard: demographic consequences of a density manipulation. Ecology, 73, 1742-1756.
69. Mateo, J. A., & Castanet, J. (1994). Reproductive strategies in three Spanish populations of the Ocellated lizard Lacerta lepida (Sauria, Lacertidae). Acta Oecologia, 15, 215-229.
70. Mathies, T., & Andrews, R. M. (1995). Thermal and reproductive biology of high and low elevation populations of the lizard Sceloporus scalaris: Implications for the evolution of viviparity. Oecologia, 104, 101-111.
71. Medina, M., & Ibargüengoytía, N. R. (2010). How do viviparous and oviparous lizards reproduce in Patagonia? A comparative study of three species of Liolaemus. Journal of Arid Environments, 74, 1024-1032.
72. Meiri, S. (2008). Evolution and ecology of lizard body sizes. Global Ecology and Biogeography, 17, 724-734.
73. Merilä, J., & Björklund, M. (1999). Population divergence and morphometric integration in the greenfinch (Carduelis chloris)-Evolution against the trajectory of least resistance? Journal of Evolutionary Biology, 12, 103-112.
74. Niewiarowski, P. H., Angilletta, M. J., & Leaché, A. D. (2004). Phylogenetic comparative analysis of life-history variation among populations of the lizard Sceloporus undulatus: An example and prognosis. Evolution, 58, 619-633.
75. Olsson, M., & Shine, R. (1997). The limits to reproductive output: offspring size versus number in the sand lizard (Lacerta agilis). American Naturalist, 149, 179-188.
76. Orlova, V. F., Kuranova, V. N., & Bulakhova, N. A. (2005). Some aspects of reproductive biology of Zootoca vivipara (Jacquin, 1787) in the Asian part of its area. In N. Ananjeva & O. Tsinenko (Eds.), Herpetologia petropolitana (pp. 255-258). St. Petersburg: Societas Europaea Herpetologica.
77. Osenegg, K. (1995). Populationsökologische Untersuchungen an der oviparen Form der Waldeidechse, Lacerta (Zootoca) vivipara Jacquin, 1787, im Südwesten Frankreichs. Ph. D. Thesis. Bonn University.
78. Packard, G. C., & Boardman, T. J. (1988). The misuse of ratios, indices, and percentages in ecophysiological research. Physiological Zoology, 61, 1-9.
79. Parker, G. A., & Begon, M. (1986). Optimal egg size and clutch size: Effects of environment and maternal phenotype. American Naturalist, 128, 573-592.
80. Pilorge, T. (1987). Density, size structure, and reproductive characteristics of three populations of Lacerta vivipara (Sauria: Lacertidae). Herpetologica, 43, 345-356.
81. Pilorge, T., Xavier, F., & Barbault, R. (1983). Variations in litter size and reproductive effort within and between some populations of Lacerta vivipara. Holarctic Ecology, 6, 381-386.
82. Pincheira-Donoso, D., Hodgson, D. J., & Tregenza, T. (2008). The evolution of body size under environmental gradients in ectotherms: Why should Bergmann's rule apply to lizards? BMC Evolutionary Biolology, 8, 68. doi: 10. 1186/1471-2148-8-68.
83. Qualls, C. P., & Shine, R. (1995). Maternal body-volume as a constraint on reproductive output in lizards: Evidence from the evolution of viviparity. Oecologia, 103, 73-78.
84. Qualls, F. J., & Shine, R. (2000). Post-hatching environment contributes greatly to phenotypic variation between two populations of the Australian garden skink, Lampropholis guichenoti. Biolological Journal of the Linnean Society, 71, 315-341.
85. Reichling, H. (1957). Transpiration und Vorzugstemperatur Mitteleuropäischer Reptilien und Amphibien. Zoologisches Jahrbuch für Physiologie, 67, 1-64.
86. Revell, L. J., Harmon, L. J., Langerhans, L. B., & Kolbe, J. J. (2007). A phylogenetic approach to determining the importance of constraint on phenotypic evolution in the neotropical lizard Anolis cristatellus. Evolutionary Ecology Research, 9, 261-282.
87. Rocha, C. F. D., Vrcibradic, D., Teixeira, R. L., & Cuzzuol, M. G. T. (2002). Interpopulational variation in litter size of the skink Mabuya agilis in southeastern Brazil. Copeia, 2002, 857-864.
88. Rodríguez-Díaz, T., & Braña, F. (2012). Altitudinal variation in egg retention and rates of embryonic development in oviparous Zootoca vivipara fits predictions from the cold-climate model on the evolution of viviparity. Journal of Evolutionary Biology, 25, 1877-1887.
89. Roff, D. A. (1992). The evolution of life histories: Theory and analysis. New York: Chapman & Hall.
90. Rohr, D. H. (1997). Demographic and life-history variation in two proximate populations of viviparous skink separated by a steep altitudinal gradient. Journal of Animal Ecology, 66, 567-578.
91. Roitberg, E. S., Orlova, V. F., Kuranova, V. N., Bulakhova, N. A., Zinenko, O. I., Ljubisavljević, K., et al. (2011). Inter-observer and intra-observer differences in measuring body length: A test in the common lizard, Zootoca vivipara. Amphibia-Reptilia, 32, 477-484.
92. Rúa, M., & Galán, P. (2003). Reproductive characteristics of a lowland population of an alpine lizard: Lacerta monticola (Squamata, Lacertidae) in north-west Spain. Animal Biology, 53, 347-366.
93. Sears, M. W., & Angilletta, M. J. (2004). Body size clines in Sceloporus lizards: Proximate mechanisms and demographic constraints. Integrative and Comparative Biology, 44, 433-442.
94. Shine, R. (1987). The evolution of viviparity: Ecological correlates of reproductive mode within a genus of Australian snakes (Pseudechis: Elapidae). Copeia, 1987, 551-563.
95. Shine, R. (1992). Relative clutch mass and body shape in lizards and snakes: Is reproductive investment constrained or optimized? Evolution, 46, 828-833.
96. Shine, R. (2005). Life-history evolution in reptiles. Annual Review of Ecology Evolution and Systematics, 36, 23-46.
97. Sinervo, B. (1990). The evolution of maternal investment in lizards: An experimental and comparative analysis of egg size and its effects on offspring performance. Evolution, 44, 279-294.
98. Smith, R. J. (1999). Statistics of sexual size dimorphism. Journal of Human Evolution, 36, 423-459.
99. Smith, C. C., & Fretwell, S. D. (1974). The optimal balance between size and number of offspring. American Naturalist, 108, 499-506.
100. Smith, S. A., & Shine, R. (1997). Intraspecific variation in reproductive mode within the scincid lizard Saiphos equalis. Australian Journal of Zoology, 45, 435-445.
101. Sorci, G., & Clobert, J. (1999). Natural selection on hatchling body size and mass in two environments in the common lizard (Lacerta vivipara). Evolutionary Ecology Research, 1, 303-316.
102. Sorci, G., Clobert, J., & Belichon, S. (1996). Phenotypic plasticity of growth and survival in the common lizard Lacerta vivipara. Journal of Animal Ecology, 65, 781-790.
103. Stearns, S. C. (1992). The evolution of life histories. Oxford: Oxford University Press.
104. Stone, G. N., Nee, S., & Felsenstein, J. (2011). Controlling for non-independence in comparative analysis of patterns across populations within species. Philosophical Transactions of the Royal Society B: Biological Sciences, 366(1569), 1410-1424.
105. Stuart-Smith, J., Swain, R., Stuart-Smith, R. D., & Wapstra, E. (2007). Is fecundity the ultimate cause of female-biased size dimorphism in a dragon lizard? Journal of Zoology, 273, 266-272.
106. Sun, Y. Y., Du, Y., Yang, J., Fu, T. B., Lin, C. X., & Ji, X. (2012). Is the evolution of viviparity accompanied by a relative increase in maternal abdomen size in lizards? Evolutionary Biology, 39, 388-399.
107. Surget-Groba, Y., Heulin, B., Guillaume, C. P., Puky, M., Semenov, D., Orlova, V., et al. (2006). Multiple origins of viviparity, or reversal from viviparity to oviparity? The European common lizard (Zootoca vivipara, Lacertidae) and the evolution of parity. Biological Journal of the Linnean Society, 87, 1-11.
108. Surget-Groba, Y., Heulin, B., Guillaume, C. P., Thorpe, R. S., Kupriyanova, L., Vogrin, N., et al. (2001). Intraspecific phylogeography of Lacerta vivipara and the evolution of viviparity. Molecular Phylogenetics and Evolution, 18, 449-459.
109. Taylor, H. L., Cooley, C. R., Aguilar, R. A., & Obana, C. J. (1992). Factors affecting clutch size in the teiid lizards Cnemidophorus tigris gracilis and C. t. septentrionalis. Journal of Herpetology, 26, 443-447.
110. Tinkle, D. W., Dunham, A. E., & Congdon, J. D. (1993). Life history and demographic variation in the lizard Sceloporus graciosus: A long-term study. Ecology, 74, 2413-2429.
111. Uller, T., & Olsson, M. (2003). Life in the land of the midnight sun: are northern lizards adapted to longer days? Oikos, 101, 317-322.
112. Uller, T., & Olsson, M. (2005). Trade-offs between offspring size and number in the lizard Lacerta vivipara: A comparison between field and laboratory conditions. Journal of Zoology London, 265, 295-299.
113. van Damme, R., Bauwens, D., & Verheyen, R. F. (1989). Effect of relative clutch mass on sprint speed in the lizard Lacerta vivipara. Journal of Herpetology, 23, 459-461.
114. Vercken, E., & Clobert, J. (2008). The role of colour polymorphism in social encounters among female common lizards. Herpetological Journal, 18, 223-230.
115. Vervust, B., van Dongen, S., & van Damme, R. (2009). The effect of preservation on lizard morphometrics-An experimental study. Amphibia-Reptilia, 30, 321-329.
116. Vitt, L. J., & Breitenbach, G. L. (1993). Life histories and reproductive tactics among lizards in the genus Cnemidophorus (Sauria: Teiidae). In J. W. Wright & L. J. Vitt (Eds.), Biology of Whiptail lizards (genus Cnemidophorus) (pp. 211-243). Norman: Oklahoma Museum of Natural History.
117. Vitt, L. J., & Pianka, E. R. (1994). Lizard ecology: Historical and experimental perspectives. Princeton: Princeton University Press.
118. Wapstra, E., & Swain, R. (2001). Geographic and annual variation in life-history traits in a temperate zone Australian skink. Journal of Herpetology, 35, 194-203.
119. Winkler, D. W., & Wallin, K. (1987). Offspring size and number: A life history model linking effort per offspring and total effort. American Naturalist, 129, 708-720.
120. Yang, J., Sun, Y. Y., Fu, T. B., Xu, D. D., & Ji, X. (2012). Selection for increased maternal body-volume does not differ between two Scincella lizards with different reproductive modes. Zoology, 115, 199-206.