• Publications
  • Influence
Genetic Intrigues. (Book Reviews: Evolution of Social Insect Colonies. Sex Allocation and Kin Selection.)
TLDR
This work focuses on the evolution of colony characteristics in insects and investigates intra-colony conflicts over sex allocation in the context of inclusive fitness and sex allocation. Expand
Sex determination and population biology in the hymenoptera.
  • J. Cook, R. Crozier
  • Biology, Materials Science
  • Trends in ecology & evolution
  • 1 July 1995
The Hymenoptera (ants, bees, wasps and sawflies) display a great variety of social systems and sex ratios and have played a key role in the development and testing of many evolutionary models.Expand
Integrative taxonomy: a multisource approach to exploring biodiversity.
TLDR
A flexible procedure and stopping rule is presented that uses the information from different disciplines separately for integrative taxonomy, finding that rigor in species delimitation can be increased when several disciplines chosen for complementarity are used. Expand
The relationship between population genetic structure and pelagic larval duration in coral reef fishes on the Great Barrier Reef
TLDR
These genetic patterns are consistent with moderate gene flow among well-connected locations and indicate that at this phylogenetic level (i.e., within family) the duration of the pelagic larval phase is unrelated to the patterns of genetic differentiation. Expand
Modes of spontaneous chromosomal mutation and karyotype evolution in ants with reference to the minimum interaction hypothesis.
TLDR
Translocations and Robertsonian polymorphisms are confirmed to be non-randomly distributed among ants, consistent with the minimum interaction hypothesis of Imai et al. (1986), under which translocations are expected to occur most frequently in low-numbered karyotypes. Expand
The cytochrome b region in the mitochondrial DNA of the ant Tetraponera rufoniger: Sequence divergence in hymenoptera may be associated with nucleotide content
TLDR
The high A + T%, the biased codon usage, and the increased PPC divergence of Hymenoptera can in that respect most easily be explained by directional mutation pressure which began in the Upper Carboniferous and still occurs in most members of the order. Expand
Heterozygosity and Sex Determination in Haplo-Diploidy
  • R. Crozier
  • Biology
  • The American Naturalist
  • 1 September 1971
TLDR
Testable predictions for species with many sex loci indicate that prolonged close inbreeding should yield diploid males; that diploids in outbred lines should be extremely rare compared with haploid intersexes; and that feminized borders, due to complementation between different sex alleles, should often occur between genetically different blocks of tissue in gynoid males. Expand
Phylogenetic evidence for a single, ancestral origin of a ‘true’ worker caste in termites
TLDR
A test for correlated evolution which takes phylogenetic structure into account indicates that this pattern is of biological significance and suggests that the variable occurrence of a worker caste in termites has ecological determinants, apparently linked to differences in feeding and nesting habits. Expand
Evolutionary Genetics of the Hymenoptera
The order Hymenoptera is of great size and possesses a number of notable charac­ teristics: wide diversity among life patterns of its members, extraordinary repeated evolution of social forms,Expand
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