Results 191 to 200 of about 2,764 (221)

Batesian mimicry and signal detection theory

Bulletin of Mathematical Biology, 1975
Signal Detection Theory can be used to provide a mathematical model describing the choice of a predator trying to distinguish between a model and a Batesian mimic. The mathematical model yields a number of a deductions, in particular that it may or may not assist the mimic population if mimics more closely resemble their models.
Oaten, A., Pearce, C. E. M., Smyth, M. E. B.   +2 more
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Batesian Mimicry: Selective Advantage of Color Pattern

Science, 1977
Field studies of releases and recaptures of diurnal moths painted with yellow to resemble the edible tiger swallowtail and of black moths that resemble a toxic species of swallowtail produced these results: (i) A greater proportion of the black moths were recaptured; (ii) daily trapping for a week after each release showed that the black moths survived
J G, Sternburg, G P, Waldbauer, M R, Jeffords   +2 more
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Batesian, quasi-Batesian or Müllerian mimicry? Theory and data in mimicry Research

Evolutionary Ecology, 1999
In this paper I argue that the nature of mimetic relationships remains contentious because there are insufficient data to enable full evaluation of theoretical models. There is, however, a growing appreciation of the need to draw together empirical studies to provide foundations for theoretical work.
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Batesian mimicry and masquerade

2018
AbstractThis chapter concerns Batesian mimicry, which is the resemblance of a palatable species to an unpalatable or otherwise unprofitable species. Often these unprofitable models have warning signals, which the mimic has evolved to copy. The chapter also considers another well-known form of deception, namely masquerade, which is the resemblance of a ...
Graeme D. Ruxton, William L. Allen, Thomas N. Sherratt, Michael P. Speed   +3 more
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Plant defence signals and Batesian mimicry

Evolutionary Ecology, 1998
In a game theory context, we investigated conditions for an evolutionarily stable equilibrium of defended, signalling plants, and plants mimicking these signals – that is, conditions for a stable mimicry complex. We modelled this in three steps. First, we analysed conditions for selection for defended, signalling plants, in a population of undefended ...
Magnus Augner, Elizabeth a. Bernays
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Batesian food-source mimicry

2016
AbstractPlants that lack floral rewards can attract pollinators if their flowers sufficiently resemble those of sympatric food-rewarding plants. This is because animals that associate the signals of rewarding flowers with food may also be attracted by similar signals in a deceptive species.
Steven D. Johnson, Florian P. Schiestl
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Evolution of dominance in polymorphic Batesian mimicry

Theoretical Population Biology, 1973
Abstract Models of two simple genetic systems of two alleles segregating at two loci are used to study the evolution of dominance of a Batesian mimic maintained in a population by frequency-dependent selection. The alleles at one locus determine the mimetic patterns, and their dominance is modified by the alleles at the other locus. In the model, the
Peter O'Donald, John A. Barrett
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The evolution and maintenance of Batesian mimicry

2004
AbstractIf an undefended species (the mimic) were to adopt the same warning signal as a defended species (the model), then it might be able to gain protection from predators without investing in defence. This Batesian mimicry may weaken the protection which the signal gives individuals of the defended species, since the predator experiences a less ...
Graeme D. Ruxton, Thomas N. Sherratt, Michael P. Speed   +2 more
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Batesian mimicry without distastefulness?

Nature, 1974
MANY distasteful species are conspicuously coloured1 and this is believed to aid their survival through the formation of ‘avoidance images’2 by predators. It has been suggested that ‘an efficient escape mechanism’ either provided by a jumping response3,4, or a fast escape flight5–7, could be as powerful as distastefulness in influencing a predator's ...
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Theoretical genetics of batesian mimicry III. Evolution of dominance

Journal of Theoretical Biology, 1975
This paper presents the results of simulating two-locus systems with Batesian mimicry, with special reference to the evolution of dominance. Systems with a single model, and with two species of models, and their mimics are considered. With one species of model, it is shown that either dominance or recessivity of an original mimicry gene may evolve ...
D, Charlesworth, B, Charlesworth
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