R. Snook

Publications76
h-index32
Citations3,398
Highly Influential Citations181
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Sperm in competition: not playing by the numbers.
  • R. Snook
  • Biology, Medicine
  • Trends in ecology & evolution
  • 2005
The outcome of sperm competition is mediated largely by the relative numbers of sperm from competing males. However, substantial variation in features of sperm morphology and behaviour, such as… Expand
  • 553
  • 47
What do we need to know about speciation?
Speciation has been a major focus of evolutionary biology research in recent years, with many important advances. However, some of the traditional organising principles of the subject area no longer… Expand
  • 363
  • 14
  • PDF
PERSPECTIVE: SEXUAL CONFLICT AND SEXUAL SELECTION: CHASING AWAY PARADIGM SHIFTS
  • T. Pizzari, R. Snook
  • Biology, Medicine
  • Evolution; international journal of organic…
  • 1 June 2003
Abstract.— Traditional models of sexual selection propose that partner choice increases both average male and average female fitness in a population. Recent theoretical and empirical work, however,… Expand
  • 161
  • 12
  • PDF
Offsetting effects of Wolbachia infection and heat shock on sperm production in Drosophila simulans: analyses of fecundity, fertility and accessory gland proteins.
Infection in Drosophila simulans with the endocellular symbiont Wolbachia pipientis results in egg lethality caused by failure to properly initiate diploid development (cytoplasmic incompatibility,… Expand
  • 140
  • 6
  • PDF
Male attractiveness, fertility and susceptibility to oxidative stress are influenced by inbreeding in Drosophila simulans
Inbreeding frequently leads to inbreeding depression, a reduction in the trait values of inbred individuals. Inbreeding depression has been documented in sexually selected characters in several taxa,… Expand
  • 58
  • 6
Functional nonequivalence of sperm in Drosophila pseudoobscura.
We report on a form of sperm polymorphism, termed polymegaly, that occurs in species of the Drosophila obscura group. Individual males of species in this group characteristically produce more than… Expand
  • 101
  • 5
  • PDF
Evolutionary Ecology of the Prezygotic Stage
The life cycles of sexually reproducing animals and flowering plants begin with male and female gametes and their fusion to form a zygote. Selection at this earliest stage is crucial for offspring… Expand
  • 148
  • 5
  • PDF
IS THE PRODUCTION OF MULTIPLE SPERM TYPES ADAPTIVE?
  • R. Snook
  • Biology, Medicine
  • Evolution; international journal of organic…
  • 1 June 1997
Males of many species concurrently produce more than one sperm type, now called sperm heteromorphism. In the Drosophila obscura group, all species examined to date produce multiple sperm types that… Expand
  • 69
  • 5
Experimental Removal and Elevation of Sexual Selection: Does Sexual Selection Generate Manipulative Males and Resistant Females?
Sexual conflict over reproduction can occur between males and females. In several naturally promiscuous insect species, experimental evolution studies that have enforced monogamy found evidence for… Expand
  • 90
  • 5
The evolution of polyandry
  • 72
  • 5
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