8. REFERENCES
Balen J
.
1973. A comparative study of the breeding ecology of the Great Tit Parus major in different habitats. Ardea 61: 1–93. Google Scholar
P. T. Boag
&
P. R. Grant
.
1978. Heritability of external morphology in Darwin's Finches. Nature 274: 793–794. Google Scholar
Delden W
,
A. C. Boerema
&
A. Kamping
.
1978. The alcohol-dehydrogenase polymorphism in populations of Drosophila melanogaster. I. Selection in different environments. Genetics 90: 161–191. Google Scholar
A. A. Dhondt
,
R. Eyckerman
&
J. Hublé
.
1979. Will Great Tits become Little Tits? Biol. J. Linn. Soc. 11: 289–294. Google Scholar
Th. Dobzhansky
1970. The genetics of the evolutionary process. Columbia, New York & London. Google Scholar
W. J. Ewens
1977. Population genetics theory in relationto neutralist-selectionist controversy. Adv. Hum. Genet. 8: 67–135. Google Scholar
D. S. Falconer
1960. Introduction to quantitative genetics. Oliver & Boyd, Edinburgh & London. Google Scholar
M. C. Garnett
1976. Some aspects of body size in the Great Tit. Ph. D. Thesis, Oxford. Google Scholar
A. J. W. Hoorn
&
W. Scharloo
.
1979. Selection on enzyme variants in Drosophila. Aquilo Ser. Zool. 20: 41–48. Google Scholar
R. F. Johnston
&
R. K. Selander
.
1964. House Sparrows: rapid evolution of races in North America. Science 144: 548–550. Google Scholar
P. J. Jones
1973. Some aspects of the feeding ecology of the Great Tit Parus major L. Ph. D. Thesis, Oxford. Google Scholar
H. Källander
1974. Advancement of laying of Great Tits by the provision of food. Ibis 116: 365–367. Google Scholar
H. N. Kluyver
1952. Notes on body weight and time of breeding in the Great Tit, Parus major L. Ardea 40: 123–141. Google Scholar
D. Lack
1954a. The evolution of clutch size. In:
J. Huxley
,
A. C. Hardy
&
E. B. Ford
(ed.).
Evolution as a process. Allen & Unwin, London. Google Scholar
D. Lack
1954b. The natural regulation of animal numbers. Clarendon Press, Oxford. Google Scholar
R. C. Lewontin
1974. The genetic basis of evolutionary change. Columbia, New York & London. Google Scholar
M. Ojanen
,
M. Orell
&
R. A. Väisänen
.
1979. Role of heredity in egg size variation in the Great Tit Parus major and the Pied Flycatcher Ficedula hypoleuca. Ornis Scand. 10: 22–28. Google Scholar
C. M. Perrins
&
P. J. Jones
.
1974. The inheritance of clutch size in the Great Tit. Condor 76: 225–229. Google Scholar
C. M. Perrins
&
D. Moss
.
1975. Reproductive rates in the Great Tit. J. Anim. Ecol. 44: 695–706. Google Scholar
A. Robertson
1955. Selection in Animals: synthesis. Cold Spring Harb. Symp. Quant. Biol. 20: 225–229. Google Scholar
J. Roughgarden
1979. Theory of population genetics and evolutionary ecology: an introduction. Macmillan, New York. Google Scholar
J. N. M. Smith
&
R. Zach
.
1979. Heritability of some morphological characters in a Song Sparrow population. Evolution 33: 460–567. Google Scholar
S. Wright
1960. Genetics and twentieth century Darwinism. A review and discussion. Am. J. Hum. Genet. 12: 365–372. Google Scholar