Skip Navigation
  • UC Riverside
  • College of Natural and Agricultural Sciences

Publications - Derek Roff, UC Riverside

Publications for Derek Roff, UC Riverside


Roff, D. A. 1992. The Evolution of Life Histories: Theory and Analysis, Chapman and Hall, New York

Roff, D. A. 1997. Evolutionary Quantitative Genetics, Chapman and Hall, New York

Fox, C. W. , Roff, D. A. and Fairbairn, D. J. (eds) 2001 Evolutionary Ecology: Concepts and Case Studies, Oxford University Press, Oxford

Roff, D. A. 2002. Life History Evolution, Sinauer Associates, Sunderland, MA

Roff, D. A. 2006. Introduction to Computer-Intensive Methods of Data Analysis in Biology, Cambridge University Press, Cambridge




1. Roff, D.A. 1973. On the accuracy of some mark-recapture estimators. Oecologia 12:15-34.

2. Roff, D.A. 1973. An examination of some statistical tests used in the analysis of mark-recapture data.Oecologia 12:35-54.


3. Roff, D.A. 1974. A comment on the number of factors model of Reddingi¬us and den Boer. Am. Nat. 108:391-393.

4. Roff, D.A. 1974. Spatial heterogeneity and the persistence of popula¬tions. Oecologia 15:245-258.

5. Roff, D.A. 1974. The analysis of a population model demonstrating the importance of dispersal in a heterogeneous environment. Oecologia 15: 259-275.


6. Roff, D.A. 1975. Population stability and the evolution of dispersal in a heterogeneous environment. Oecologia 19:217-237.


7. Roff, D.A. 1976. Stabilizing selection in Drosophila melanogaster: A comment. J. Heredity 67:245-246.


8. Roff, D.A. 1977. Does body size evolve by quantum steps? Evol. Theory 3:149-153.

9. Roff, D.A. 1977. Dispersal in dipterans: its costs and consequences. J. Anim. Ecol. 46:443-456.


10. Roff, D.A. 1978. Size and survival in a stochastic environment. Oeco¬lo¬gia 36:163-172.


11. Roff, D.A. 1980. A motion for the retirement of the Von Bertalanffy function. Can. J. Fish. Aquat. Sci. 37: 127-129.

12. Roff, D.A. 1980. On defining the sufficient causes for natural se¬lection to occur. Evol. Theory 4:195-201.

13. Smith, J.N.M. and D.A. Roff. 1980. Temporal spacing of broods, brood size, and parental care in song sparrows (Melospiza melodia). Can. J. Zoology 58:1007-1015.

14. Fairbairn, D.J. and D.A. Roff. 1980. Testing genetic models of iso¬zyme variability without breeding data: can we depend upon the ?2. Can. J. Fish. Aquat. Sci. 37:1149-1159.

15. Roff, D.A. and D.J. Fairbairn. 1980. An evaluation of Gulland's method for fitting the Schaefer model. Can. J. Fish. Aquat. Sci. 37:1229-1235.

16. Roff, D.A. 1980. Optimizing development time in a seasonal environment: the "ups and downs" of clinal variation. Oecologia 45:202-208.


17. Roff, D.A. 1981. On being the right size. Am. Nat. 118: 405-422.

18. Roff, D.A. 1981. On estimating partial recruitment in virtual population analysis. Can. J. Fish. Aquat. Sci. 38:1003-1005.

19. Roff, D.A. 1981. Reproductive uncertainty and the evolution of iteroparity: why don't flatfish put all their eggs in one basket? Can. J. Fish. Aquat. Sci. 38:968-977.


20. Roff, D.A. 1982. Reproductive strategies in Flatfish: a first synthesis. Can. J. Fish. Aquat Sci. 39:1686-1698

21. Roff, D.A. and W.C. Bowen. 1982. Population dynamics and management of the northwest atlantic harp seal (Phoca groenlandica). Can. J. Fish. Aquat. Sci. 40:919-932.


22. Roff, D.A. 1983. Phenological adaptation in a seasonal environment: a theoretical perspective. In V.K. Brown and I. Hodek (eds.), "Diapause and life cycle strategies in insects". Dr. W. Junk Publish¬ers, The Hague.

23. Roff, D.A. 1983. A reply to Gavaris. Can. J. Fish. Aquat. Sci. 40: 384.

24. Roff, D.A. 1983. Development rates and the optimal body size in Drosophila: a reply to Ricklefs. Amer. Nat. 122:570-575.

25. Roff, D.A. 1983. Analysis of catch effort data: a comparison of three methods. Can. J. Fish. Aquat. Sci. 40:1496-1506.

26. Roff, D.A. 1983. An allocation model of growth and reproduction in fish. Can. J. Fish. Aquat. Sci. 40:1395-1404.


27. Roff, D.A. 1984. On the cost of being able to fly: a study of wing polymorphism in two species of crickets. Oecologia 63:30-37.

28. Roff, D.A. 1984. The evolution of life history parameters in teleosts. Can. J. Fish. Aquat. Sci. 41:984-1000.


29. Roff, D.A. 1986. The evolution of wing polymorphism and its impact on life cycle adaptation in insects. pp 209-221. In F. Taylor and R. Karban (eds.), "The Evolution of Insect Life Cycles". Springer-Verlag, New York.

30. Roff, D.A. 1986. The evolution of wing dimorphism in insects. Evolution 40:1009-1020.

31. Roff, D.A. 1986. The genetic basis of wing dimorphism in the sand crick¬et, Gryllus firmus and its relevance to the evolution of wing polymorphism in insects. Heredity 57:221-231.

32. Roff, D.A. and W.D. Bowen. 1986. A further analysis of population trends in the northwest Atlantic harpseal (Phoca groenlandica) from 1967-1983. Can. J. Fish. Aquat. Sci. 43:553-564.

33. Roff, D.A. 1986. Predicting body size with life history models. BioScience 36:316-323.

34. Lemon, R.E., S. Monette and D.A. Roff. 1986. Song repertoires of American warblers (Parulinae): honest advertising or assessment? Condor 87:457-470.


35. Roff, D.A. and T.A. Mousseau. 1987. Quantitative genetics and fitness: lessons from Drosophila. Heredity 58:103-118.

36. Heath, D. and D.A. Roff. 1987. A test of genetic differentiation in growth of stunted and non-stunted populations of perch and pumpkin¬seed. Transactions of the American Fisheries Society 116:98-102.

37. Mousseau, T.A. and D.A. Roff. 1987. Natural selection and the heritability of fitness components. Heredity 59:181-198.


38. Roff, D.A. 1988. The evolution of migration and life history in marine fish. Env. Biol. Fishes 22: 133-146.

39. Morin, A., T.A. Mousseau and D.A. Roff. 1988. Accuracy and precision of secondary production estimates. Limnol. Oceanogr. 32: 1342-1352.

40. Shackell, N.L., R.E. Lemon and D.A. Roff. 1988. Song similarity between neighboring American redstarts (Setophagaruticilla): a statis¬ti¬cal analy¬sis. Auk 105: 609-615.


41. Roff, D.A. 1989. Exaptation and the evolution of dealation in insects. Journal of Evolutionary Biology 2: 109-123.

42. Roff, D.A. and P. Bentzen. 1989. The statistical analysis of mitochondrial DNA polymorphisms: ?2 and the problem of small samples, Mol. Biol. Evol. 6:539-545.

43. Mousseau, T.A. and D.A. Roff. 1989. Geographic variability in the incidence and heritability of wing dimorphism in the striped ground cricket, Allonemobius fasciatus. Heredity 62:315-318.

44. Mousseau, T.A. and D.A. Roff. 1989 Adaptation to seasonality in a cricket: patterns of phenotypic and genotypic variation in body size and diapause expression along a cline in season length. Evolution 43: 1483-1496.


45. Roff, D.A. 1990. Understanding the evolution of insect life cycles: the role of genetical analysis. In, F. Gilbert (ed.), "Genetics, Evolution and Coordination of Insect Life Cycles". Springer Verlag, New York.

46. Roff, D.A. 1990. Antagonistic pleiotropy and the evolution of wing dimorphism in Gryllus firmus. Heredity 65:169-177.

47. Roff, D.A. 1990. The evolution of flightlessness in insects. Ecological Monographs 60:389-421.

48. Roff, D.A. 1990. Selection for changes in the incidence of wing dimorphism in Gryllus firmus. Heredity 65:163-168.

49. Fairbairn, D.J. and D.A. Roff. 1990. Evidence of genetic correlations among traits determining migratory tendency in the sand cricket Gryllus firmus. Evolution 44:1787-1795.


50. Roff, D.A. 1991. The evolution of life history variation in fishes with particular reference to flatfishes. Neth. J. Sea Res. 27:197-207.

51. Roff, D.A. 1991. Life history consequences of bioenergetic and biomechanical constraints on migration. American Zoologist 31:205-215

52. Roff, D.A. and D.J. Fairbairn. 1991. Wing dimorphisms and the evolution of migratory polymorphisms among the insects. Am. Zool. 31:243-251.

53. Duarte, C.M. and D.A. Roff. 1991. Architectural and life-history constraints to submersed macrophyte community structure. Aquat. Bot.. 42:15-29.


54. Roff, D.A. 1992. The evolution of alternative life histories: quantitative genetics and the evolution of wing dimorphism in insects. Bull. Soc. Pop. Ecol. 49: 28-35.

55. Roff, D.A. and P. Bentzen 1992. Detecting geographic subdivision: a comment on a paper by Hudson et al. (1992) Mol. Biol. Evol. 9:968.


56. Potvin, C. and D.A. Roff. 1993. Distribution-free and robust methods: viable alternatives to parametric statistics? Ecology 74:1617-1628.

57. Webb, K.L. and D.A. Roff. 1993. The quantitative genetics of sound production in Gryllus firmus. Animal Behaviour 44: 823-832.

58. Roff. D.A. and D.J. Fairbairn 1993. The evolution of alternate morphologies: fitness and wing morphology in male sand crickets. Evolution 47:1572-1584.

59. Bradford, M.J. and D.A. Roff 1993. Bet-hedging and phenotypic plasticity in the diapause strategies of the cricket Allonemobius fasciatus. Ecology 74:1129-1135.

60. Bradford, M.J., P.A. Guerette, and D.A. Roff. 1993. Testing hypotheses of adaptive variation in cricket ovipositor lengths. Oecologia 93:263-267.

61. Roff, D.A. and P. Shannon. 1993. Genetic and ontogenetic variation in behaviour: its possible role in the maintenance of genetic variation in the wing dimorphism of Gryllus firmus. Heredity 71:481-487.


62. Roff, D.A. 1994. Optimality modelling: assumptions and relationship to quantitative genetics. pp 49-66 In C. Boake and A.V. Hedrick (eds.), "Quantitative Genetic Studies of the Evolution of Behavior", University of Chicago Press.

63. Roff, D.A. 1994. The evolution of dimorphic traits: predicting the genetic correlation between environments. Genetics 136:395-401.

64. Roff, D.A. 1994. The evolution of dimorphic traits: effect of directional selection on heritability. Heredity 72: 36-41.

65. Simons, A.M. and D.A. Roff 1994. The effect of environmental variability on heritabilities of traits in a species of field cricket. Evolution 48:1637-1649.

66. Roff D.A. 1994. Habitat persistence and the evolution of wing dimorphism in insects. Am. Nat. 144: 772-798.

67. Roff, D.A. 1994. The evolution of flightlessness: is history important? Evol. Ecol. 8:639-657.

68. Roff, D.A. 1994. Evidence that the magnitude of the trade-off in a dichotomous trait is frequency-dependent. Evolution 48: 1650-1656.

69. Roff, D.A. and R. Preziosi. 1994. The estimation of the genetic correlation: the use of the jackknife. Heredity 73: 544-548.

70. Roff, D.A. 1994. Why is there so much genetic variation for wing dimorphism? Res. Popul. Ecol. 36: 145-150.

71. Carrière, Y., S.-P. Deland, D.A. Roff and C. Vincent. 1994. Life-history costs associated with the evolution of insecticide resistance. Proc. Roy. Soc. Lond. (B), 258: 35-40.


72. Roff, D.A. 1995 The estimation of genetic correlations from phenotypic correlations: a test of Cheverud's conjecture. Heredity 74:481-490.

73. Roff, D.A. 1995. Antagonistic and reinforcing pleiotropy: a study of differences in development time in wing dimorphic insects. J. Evol. Biol. 8: 405-419.

74. Bradford, M. J. and D. A. Roff. 1995. Genetic and phenotypic sources of life history variation along a cline in voltinism in the cricket Allonemobius socius. Oecologia 103: 319-326.

75. Carrière, Y. and D.A. Roff. 1995. The evolution of offspring size and number: a test of the Smith-Fretwell model in three species of crickets. Oecologia 102: 389-396.

76. Carrière, Y., D.A. Roff and J.-P. Deland. 1995. The joint evolution of diapause and insecticide resistance: a test of an optimality model. Ecology 76: 1497-1505.

77. Carrière, Y. and D.A. Roff. 1995. Change in genetic architecture resulting from the evolution of insecticide resistance: a theoretical and empirical analysis. Heredity 75: 618-629.

78. Mousseau, T. and D.A. Roff. 1995. Genetic and environmental contributions to geographic variation in the ovipositor length of a cricket. Ecology 76: 1473-1482.

79. Crnokrak, P. and D.A. Roff. 1995. Fitness differences associated with calling behaviour in the two wing morphs of male sand crickets Gryllus firmus Animal Behaviour 50: 1475-1481.

80. Crnokrak, P. and D.A. Roff. 1995. Dominance variance: associations with selection and fitness. Heredity 75: 530-540.


81. Carrière, Y., J.-P Deland and D. A. Roff. 1996. Oblique-banded leafroller (Lepidoptera: Tortricidae) resistance to insecticides: among orchard variation and cross-resistance. Journal of Economic Entomology 89: 577-582.

82. Heath, D.D. and D.A. Roff. 1996. The role of trophic bottlenecks in stunting: a field test of an allocation model of growth and reproduction in yellow perch (Perca flavescens). Environmental Biology of Fishes 45: 530-540.

83. Simons, A.M. and D.A. Roff. 1996. The effect of a variable environment on the genetic correlation structure in a field cricket. Evolution 50: 267-275.

84. Roff, D. A. 1996. The evolution of genetic correlations: an analysis of patterns. Evolution 50: 1392-1403.

85. Roff, D.A. 1996. The evolution of threshold traits in animals. Quart. Rev. Biol. 71: 3-35.

86. Roff, D.A. and M. Bradford. 1996. The quantitative genetics of the trade-off between fecundity and wing dimorphism in the cricket Allonemobius socius. Heredity 76: 178-185.

87. Carriere, Y., A. Simons and D. A. Roff. 1996. The effect of timing of post-diapause egg development on survival, growth, and body size in Gryllus pennsylvanicus. Oikos 75:463-470.

88. Weigensberg, I. and D. A. Roff. 1996. Natural heritabilities: can they be reliably estimated in the laboratory? Evolution 50:2149-2157.

89. Preziosi, R. F., D. J. Fairbairn, D. A. Roff and J. M. Brennan. 1996. Body size and fecundity in the waterstrider Aquarius remigis: a test of Darwin’s fecundity advantage hypothesis. Oecologia 108: 424-431.


90. Bradford, M. J. and D. A. Roff. 1997. An empirical model of diapause strategies of the cricket Allonemobius socius. Ecology 78: 442-451 .

91. Carrière, Y., S. Masaki and D. A. Roff. 1997. The coadaptation of female morphology and offspring size: a comparative analysis in crickets. Oecologia 110: 197-204.

92. Roff, D. A. and A. M. Simons. 1997. The quantitative genetics of wing dimorphism under laboratory and “field” conditions in the cricket Gryllus pennsylvanicus. Heredity 78: 235-240.

93. Roff, D. A., G. Stirling, and D. J. Fairbairn. 1997. The evolution of threshold traits: a quantitative genetic analysis of the physiological and life history correlates of wing dimorphism in the sand cricket. Evolution 51: 1910-1919.


94. Crnokrak, P., and D. A. Roff. 1998. The contingency of fitness: an analysis of food restriction on the macroptery-reproduction trade-off in Gryllus firmus. Anim. Behav. 56: 433-441.

95. Crnokrak, P., and D. A. Roff. 1998. The genetic basis of the trade-off between calling and wing morph in males of the cricket, Gryllus firmus. Evolution 52: 1111-1118.

96. Preziosi, R. F., and D. A. Roff. 1998. Evidence of genetic isolation between sexually monomorphic and sexually dimorphic traits in the water strider Aquarius remigis. Heredity 81: 92-99.

97. Roff, D. A. 1998. The detection and measurement of maternal effects. Maternal Effects as Adaptations. editors T. A. Mousseau and C. W. Fox, 83-96. Oxford: Oxford University Press.

98. Roff, D. A. 1998. Effects of inbreeding on morphological and life history traits of the sand cricket, Gryllus firmus. Heredity 81: 28-37.

99. Roff, D. A. 1998. Evolution of threshold traits: the balance between directional selection, drift and mutation. Heredity 80: 25-32.

100.Roff, D. A. 1998. The maintenance of phenotypic and genetic variation in threshold traits by frequency-dependent selection. Journal of Evolutionary Biology 11: 513-529.

101. Roff, D. A. 1998. Multiple entries in. The Encyclopedia of Ecology & Environmental Management. editor P. Calow. Oxford: Blackwell Science Ltd.

102. Simons, A. M., Y. Carriere, and D. A. Roff. 1998. The quantitative genetics of growth in a field cricket. J. Evol. Biol. 11: 721-734.

103. Weigensberg, I., Y. Carriere, and D. A. Roff. 1998. Effects of male genetic contribution and paternal investment on egg and hatchling size in the cricket Gryllus firmus. J. Evol. Biol. 11: 135-146.

104. Marschall, E. A., D. A. Roff, T. P. Quinn, J. A. Hutchings, N. B. Metcalfe, T. A. Bakke, R. L. Saunders, and L. Poff. 1998. A framework for understanding Atlantic salmon life history. Canadian Journal of Fisheries and Aquatic Sciences 55(suppl. 1): 48-58.

105. Roff, D. A. and M. J. Bradford 1998. The evolution of shape in the wing dimorphic cricket, Allonemobius socius. Heredity 80: 446-455.


106. Fox, C. W., M. E. Czesak, T. A. Mousseau, and D. A. Roff. 1999. The evolutionary genetics of an adaptive maternal effect: egg size plasticity in a seed beetle. Evolution 53: 552-560.

107. Roff, D. A., J. Tucker, G. Stirling, and D. J. Fairbairn. 1999. The evolution of threshold traits: effects of selection on fecundity and correlated response in wing dimorphism in the sand cricket. J. Evol. Biol. 12: 535-546.

108. Roff, D. A., and T. A. Mousseau. 1999. Does natural selection alter genetic architecture? An evaluation of quantitative genetic variation among populations of Allonemobius socius and A. fasciatus. J. Evol. Biol. 12: 361-369.

109. Roff, D. A., T. A. Mousseau, and D. J. Howard. 1999. Variation in genetic architecture of calling song among populations of Allonemobius socius, A. fasciatus and a hybrid population: drift or selection? Evolution 53: 216-224.

110. Stirling, G., D. A. Roff and D. J. Fairbairn. 1999. Four characters in a tradeoff: dissecting their phenotypic and genetic relations. Oecologia 120:492-498.

111. Roff, D. A. and D. J. Fairbairn. 1999. Predicting correlated responses in natural populations: changes in JHE activity in the Bermuda population of the sand cricket. Heredity 83: 440-450.

112. Crnokrak, P. and D. A. Roff. 1999. Inbreeding depression in the wild. Heredity 83: 260-270.

113. Derose, M. A. and D. A. Roff. 1999. A comparison of inbreeding depression in life history and morphological traits in animals. Evolution 53:1288-1292.


114. Stirling, G. and D. A. Roff. 2000. Behavioral plasticity without learning: phenotypic and genetic variation of naive Daphnia in an ecological tradeoff. Animal Behaviour 59: 929-941.

115. Roff, D. A. and M. J. Bradford. 2000. A quantitative genetic analysis of phenotypic plasticity of diapause induction in the cricket Allonemobius socius. Heredity 84: 193-200.

116. Roff, D. A. 2000. The evolution of the G matrix: selection or drift? Heredity 84: 135-142.

117. Crnokrak, P. and D. A. Roff. 2000. The trade-off to macroptery in the cricket Gryllus firmus: a path analysis in males. J. Evol. Biol. 13: 396-408.

118. Roff, D. A. 2000. Trade-offs between growth and reproduction: an analysis of the quantitative genetic evidence. J. Evol. Biol. 13: 434-445.


119. Stirling, G., D. J. Fairbairn, S. Jensen, D. A. Roff. 2001. Does a negative genetic correlation between wing morph and early fecundity imply a functional constraint in Gryllus firmus. Evol. Ecol. Res. 3: 157-177.

120. Roff, D. A. and D. J. Fairbairn. 2001. The genetic basis of migration and its consequences for the evolution of correlated traits. pp191-202 In C Clobert, J. Nichols, J. D. Danchin, and A. Dhondt (editors), Causes, consequences and mechanisms of dispersal at the individual, population and community level, Oxford University Press, Oxford.

121. Roff, D. A. and M. A. DeRose. 2001. The evolution of trade-offs: effects of inbreeding on fecundity relationships in the cricket Gryllus firmus. Evolution 55: 111-121.

122. Begin, M. and D. A. Roff. 2001. An analysis of G matrix variation in two closely related cricket species, Gryllus firmus and G. pennsylvanicus. J. Evol. Biol. 14: 1-13.

123. Roff, D. A. 2001. The threshold model as a general purpose normalizing transformation. Heredity 86: 404-411.


124. Reale, D. and D. A. Roff. 2001. Estimating genetic correlations in natural populations in the absence of pedigree information: accuracy and precision of the Lynch method. Evolution 55:1249-1255.

125. Roff, D. A., S. Mostowy and D. J. Fairbairn. 2002. The evolution of trade-offs: testing predictions on response to selection and environmental variation. Evolution 56:84-95.

126. Roff, D. A. 2002. Inbreeding depression: tests of the overdominance and partial dominance hypotheses. Evolution 56:768-775.

127. Crnokrak, P. and D. A. Roff. 2002. Trade-offs to flight capability in Gryllus firmus: the influence of whole-organism respiration rate on fitness. J. Evol. Biol. 15:388-398.

128. Stirling, D. G., D. Reale, and D. A. Roff. 2002. Selection, structure and the heritability of behaviour. Journal of Evolutionary Biology 15:277-289.

129. Roff, D. A. 2002. Comparing G matrices: a MANOVA method. Evolution 56:1286-1291.

130. Reale, D. and D. A. Roff. 2002. Quantitative genetics of oviposition behaviour and interactions between oviposition traits in the sand cricket. Animal Behaviour 64: 397-406.

131. Begin, M., and D. A. Roff. 2002. The common quantitative genetic basis of wing morphology and diapause occurrence in the cricket Gryllus veletis. Heredity 89:473-479.


132. Reale, D., and D. A. Roff. 2003. Inbreeding, developmental stability and canalization in the sand cricket Gryllus firmus. Evolution, 57: 597-605.

133. Roff, D. A. 2003. The evolution of genetic architecture in M. Pigliucci and K. Preston, eds. The Evolutionary Biology of Complex Phenotypes. Oxford University Press, Oxford.

134. Roff, D. A., and M. B. Gelinas. 2003. Phenotypic plasticity and the evolution of trade-offs: the quantitative genetics of resource allocation in the wing dimorphic cricket, Gryllus firmus. J. Evol. Biol. 16: 55-63

135. Roff, D. A. and R. J. Roff 2003. Of rats and Maoris: A novel method for the analysis of patterns of extinction in the New Zealand avifauna prior to European contact. Evolutionary Ecology Research 5: 1-21.

136. Roff, D. A., P. Crnokrak, and D. J. Fairbairn. 2003. The evolution of trade-offs: geographic variation in call duration and flight ability in the sand cricket, Gryllus firmus. Journal of Evolutionary Biology. 16:744-753

137. Begin, M., and D. A. Roff. 2003. The constancy of the G matrix through species divergence and the effects of quantitative genetic constraints on phenotypic evolution: a case study in crickets. Evolution 57:597-605.

138. Roff, D. A. 2003. Evolutionary quantitative genetics: Are we in danger of throwing out the baby with the bathwater? Ann. Zool. Fennici 40:315-320.

139. Roff, D. A. 2003. Evolutionary danger for rainforest species. Science 301:58-59. (Perspectives section)


141. Roff, D. A. 2004. The evolution of genetic architecture, In: Phenotypic Integration (Pigliucci, M. &Preston, K. ed), pp. 345-365. Oxford University Press, Oxford.

142. Roff, D. A., Mousseau, T., Møller, A. P., Lope, F. d. & Saino, N. 2004. Geographic variation in the G matrices of wild populations of the barn swallow. Heredity 93: 8-14.

143. Roff, D. A. & Reale, D. 2004. The quantitative genetics of fluctuating asymmetry: a comparison of two models. Evolution 58: 47-58.

144. Roff, D. A. & Sokolovska, N. 2004. Extra-nuclear effects on growth and development in the sand cricket, Gryllus firmus. J. Evol. Biol. 17: 663-671.

145. Reznick David, N., Bryant, M. J., Roff, D. A., Ghalambor, C. K. & Ghalambor, D. E. 2004. Effect of extrinsic mortality on the evolution of senescence in guppies. Nature 1095-1099

146. Fox, C. W., Bush, M. L., Roff, D. A. & Wallin, W. G. 2004. The evolutionary genetics of lifespan and mortality rates in two populations of the seed beetle, Callosobruchus maculatus. Heredity 92: 170-181.

147. Begin, M., Roff, D. A. & Debat, V. 2004. The effect of temperature and wing morphology on quantitative genetic variation in the cricket Gryllus firmus, with an appendix examining the statistical properties of the Jackknife-manova method of matrix comparison. J. Evol. Biol. 17: 1255-1267.

148. Begin, M. & Roff, D. A. 2004. From micro- to macroevolution through quantitative genetic variation: Positive evidence from field crickets. Evolution 58: 2287-2304.


149. Nespolo, R. F., Castaneda, L. E. & Roff, D. A. 2005. The effect of fasting on activity and resting metabolism in the sand cricket, Gryllus firmus: a multivariate approach. J. Insect Physiol. 51: 61-66.

150. Davidowitz, G., Roff, D. A. & Nijhout, H. 2005. A physiological perspective on the response of body size and development time to simultaneous directional selection. Integrative and Comparative Biology 45: 525-531

151. Roff, D. A. 2004 Variation and life history evolution. In Variation (ed. B. Hallgrimsson & B. K. Hall), pp. 333-355. New York: Elsevier Academic Press.

152. Rantala, M. J. & Roff, D. A. 2005 (in press). An analysis of trade-offs in immune function, body size and development time in the Mediterranean Field Cricket, Gryllus bimaculatus. Functional Ecology

153 Nespolo, R. F., Castaneda, L. E. & Roff, D. A. 2005 (in press) Dissecting the variance-covariance structure in insect physiology: The multivariate association between metabolism and morphology in the nymphs of the sand cricket (Gryllus firmus). Journal of Insect Physiology.

154. Roff, D. A., Remeš, V. & Martin, G. M. 2005. The evolution of fledging age in songbirds. Journal of Evolutionary Biology 18: 1425-1433.

155. Roff, D. A. & Mousseau, T. A. 2005 The evolution of the phenotypic covariance matrix: Evidence for selection and drift in Melanoplus. Journal of Evolutionary Biology 18, 1104-1114.

156. Roff, D. A. 2006 (in press). Introduction to Computer-Intensive Methods of Data Analyis in Biology. Cambridge University Press, Cambridge.

157. Rantala, M. J. & Roff, D. A. 2005 An analysis of trade-offs in immune function, body size and development time in the Mediterranean Field Cricket, Gryllus bimaculatus. Functional Ecology 19, 323-330.