1996
DOI: 10.1006/bijl.1995.0001
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The genetic effects of competition in seaweed flies

Abstract: Recciwd 2 Lkcembt-r 1994, acccptedfor fibluation 24 F e h t y 1995In spite of abundant evidence that intra-and inter-specific competition occurs in natural communities, there is surprisingly little to suggest it is a major force promoting genetic change. This report assesses the genetic effects of competition in two species of seaweed fly, Coclopajigidu and C. pi&a. In laboratory cultures of C.fngrda the relative survival of heterozygotes at the A& locus, which was being used as a marker for the large ap chrom… Show more

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Cited by 8 publications
(11 citation statements)
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“…3). The nonlinear influence of larval density on female fecundity is a novel finding and indicates potential facilitation between larvae during development, as has been reported in other insect species (e.g., Leggett et al 1996; Fletcher 2009; Ronnas et al 2010).…”
Section: Discussionsupporting
confidence: 60%
“…3). The nonlinear influence of larval density on female fecundity is a novel finding and indicates potential facilitation between larvae during development, as has been reported in other insect species (e.g., Leggett et al 1996; Fletcher 2009; Ronnas et al 2010).…”
Section: Discussionsupporting
confidence: 60%
“…Coelopa frigida favour Laminaria digitata whereas C. pilipes prefer Fucus serratus (Phillips et al ., 1995a). Both trends equate to the material on which the larvae of each species develop optimally, and this behaviour has presumably evolved through inter‐specific larval competition avoidance (see also Phillips et al ., 1995b; Leggett et al ., 1996; Day & Gilburn, 1997). It can therefore be predicted that willingness to mate may be affected by differences in algae species, especially in coelopids with a more vigorous competitor in localities in which favoured algae are relatively rare.…”
Section: Discussionmentioning
confidence: 99%
“…All coelopids are reproductively dependent on clumps of beached marine algae (wrack beds), which form the sole larval food resource (Cullen et al ., 1987; Phillips et al ., 1995a,b; Leggett et al ., 1996). Males and females are attracted strongly to some chemical components of decomposing algae (Kanmiya, 1987), which can result in very high densities of individuals in and around wrack beds (Day & Gilburn, 1997).…”
Section: Introductionmentioning
confidence: 99%
“…As it is currently not possible to identify the inversion genotype of C. frigida before eclosion as an adult, cultures were established that had the same, but unknown, initial proportions of each inversion genotype at the same larval density. To achieve this, the following procedure was adapted from Leggett et al (1996).…”
Section: Methodsmentioning
confidence: 99%