character displacement


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character displacement

[′kar·ik·tər dis′plās·mənt]
(ecology)
An outcome of competition in which two species living in the same area have evolved differences in morphology or other characteristics that lessen competition for food resources.
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Convergent and divergent character displacement. Biol.
Evidencia morfologica de hibridacion entre las subespecies de Ramphocelus flammigerus (Passeriformes: Thraupidae) en Colombia
Ecological character displacement in Plethodon: biomechanical differences found from a geometric morphometric study.
Gluttonous predators: how to estimate prey size when there are too many prey/Predadores glutoes: como estimar o tamanho das presas quando o numero delas e muito grande
3) showed no evidence of reproductive character displacement, manifest as greater incompatibility in sympatry; in fact, the trend suggests the converse pattern.
Comparison of gamete compatibility between two blue mussel species in sympatry and in allopatry
Despite the initial popularity of this concept of "character displacement," the phenomenon and its dual, "character release" (Grant 1972) in areas of allopatry from a competitor, were widely seen for many years as uncommon at best, and alternative explanations for geographic variation are often available (Grant 1972).
CHARACTER DISPLACEMENT AND RELEASE IN THE SMALL INDIAN MONGOOSE, HERPESTES JAVANICUS
Reproductive character displacement was once considered a rare phenomenon (e.g., Littlejohn 1981; Phelan and Baker 1987), however more recent work suggests otherwise.
Reinforcement of stickleback mate preferences: sympatry breeds contempt
The third mechanism is reproductive character displacement (Brown and Wilson 1956) or reinforcement (Dobzhansky 1951), whereby a low fitness of hybrids indirectly favors further divergence in mate preferences.
Body size, natural selection, and speciation in sticklebacks
That quirk achieved textbook status as the only documented example of the theory of convergent character displacement, explain Robert J.
Fading to black doesn't empower fish
3) Do interspecific differences in the timing of daily pollen release provide evidence of character displacement among co-flowering Acacia species?
Partitioning of pollinators during flowering in an African Acacia community
This opens the way for frequency dependent selection, divergence, character displacement and competitive exclusion (MacArthur and Levins 1964).
Generalists, specialists, and the evolution of phenotypic plasticity in sympatric populations of distinct species
The existence of Hutchinsonian ratios has only been weakly supported, but the regularity of size ratios, also referred to as morphological patterning, included under the umbrella of character displacement, has been controversial (Taper 1993).
Character displacement in Australian dasyurid carnivores: size relationships and prey size patterns
First, we investigate how the use of different ancestral reconstruction methods affect our hypothesis that character displacement has occurred.
Testing for unequal amounts of evolution in a continuous character on different branches of a phylogenetic tree using linear and squared-change parsimony: an example using Lesser Antillean Anolis lizards
Natural selection in this case merely favors [TABULAR DATA FOR TABLE 1 OMITTED] the reduction of gametic waste (Butlin's [1987] reproductive character displacement).
Reinforcement: a new perspective on an old controversy

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