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Sexual selection and sperm quantity: meta‐analyses of strategic ejaculation
Multiple mating or group spawning leads to post‐copulatory sexual selection, which generally favours ejaculates that are more competitive under sperm competition. In four meta‐analyses we quantifyExpand
Replicating Empirical Research In Behavioral Ecology: How And Why It Should Be Done But Rarely Ever Is
  • Clint D. Kelly
  • Biology, Medicine
  • The Quarterly Review of Biology
  • 1 September 2006
That empirical evidence is replicable is the foundation of science. Ronald Fisher, a founding father of biostatistics, recommended that a null hypothesis be rejected more than once because “noExpand
Geographic variation in multiple paternity within natural populations of the guppy (Poecilia reticulata)
Mating can increase an individual's risk of mortality by predation. In response to predation hazards, males in some species court females less often, but alternatively engage in coerced copulationsExpand
Sexual Selection for Male Mobility in a Giant Insect with Female‐Biased Size Dimorphism
Female‐biased size dimorphism, in which females are larger than males, is prevalent in many animals. Several hypotheses have been developed to explain this pattern of dimorphism. One of theseExpand
Male Mate Choice in the Guppy (Poecilia reticulata): Do Males Prefer Larger Females as Mates?
Although females are the choosier sex in most species, male mate choice is expected to occur under certain conditions. Theoretically, males should prefer larger females as mates in species whereExpand
Geographical variation in male genitalia in Brachyrhaphis episcopi (Poeciliidae): is it sexually or naturally selected?
Male poeciliid fishes inseminate females using an intromittent organ called the gonopodium. Here we report on natural variation in gonopodium size both within and between 12 populations of theExpand
Allometry and sexual selection of male weaponry in Wellington tree weta, Hemideina crassidens
Both male and female Wellington tree weta, Hemideina crassidens, use cavities in trees as diurnal shelters. That these galleries are often limiting in nature offers males the opportunity to increaseExpand
Geographical variation in the male intromittent organ of the Trinidadian guppy (Poecilia reticulata)
Sexual selection may favour the evolution of elaborated genital traits in males, particularly when phenotypic variation in such traits results in corresponding variation in reproductive success amongExpand
The h index and career assessment by numbers.
Growing demand to quantify the research output from public funding has tempted funding agencies, promotion committees and employers to treat numerical indices of research output more seriously. SoExpand
Fighting for harems: assessment strategies during male–male contests in the sexually dimorphic Wellington tree weta
Females often aggregate at particular sites for feeding or shelter, thus giving adult males the opportunity to defend harems and increase male reproductive success. Rival males compete for control ofExpand
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