Results 201 to 210 of about 1,474 (223)

Imperfect Mimicry and the Limits of Natural Selection

open access: yesQuarterly Review of Biology, 2013
Mimicry—when one organism (the mimic) evolves a phenotypic resemblance to another (the model) due to selective benefits—is widely used to illustrate natural selection’s power to generate adaptations. However, many putative mimics resemble their models imprecisely, and such imperfect mimicry represents a specific challenge to mimicry theory and a ...
David W Kikuchi, David W Pfennig
exaly   +5 more sources

Stimulus Salience as an Explanation for Imperfect Mimicry [PDF]

open access: yesCurrent Biology, 2014
The theory of mimicry explains how a mimic species gains advantage by resembling a model species [1-3]. Selection for increased mimic-model similarity should then result in accurate mimicry, yet there are many surprising examples of poor mimicry in the natural world [4-8]. The existence of imperfect mimics remains a major unsolved conundrum. We propose
Baharan Kazemi   +2 more
exaly   +4 more sources

A comparative analysis of the evolution of imperfect mimicry [PDF]

open access: yesNature, 2012
Although exceptional examples of adaptation are frequently celebrated, some outcomes of natural selection seem far from perfect. For example, many hoverflies (Diptera: Syrphidae) are harmless (Batesian1) mimics of stinging Hymenoptera2. However, although some hoverfly species are considered excellent mimics, other species bear only a superficial ...
Heather D Penney   +2 more
exaly   +6 more sources

Frequency dependence shapes the adaptive landscape of imperfect Batesian mimicry [PDF]

open access: yesProceedings of the Royal Society B: Biological Sciences, 2018
Despite more than a century of biological research on the evolution and maintenance of mimetic signals, the relative frequencies of models and mimics necessary to establish and maintain Batesian mimicry in natural populations remain understudied.
Susan D Finkbeiner   +2 more
exaly   +7 more sources

Evolution: The Mystery of Imperfect Mimicry [PDF]

open access: yesCurrent Biology, 2014
Mimicry has long provided some of the most persuasive examples of the power of natural selection. However, some mimics are quite poor. A new study shows that mechanisms by which animals learn might explain how imperfect mimics survive.
Innes C Cuthill
exaly   +5 more sources

Imperfect ant mimicry contributes to local adaptation in a jumping spider

open access: yesIScience, 2023
Putative ant mimicry is a remarkable example of an evolutionary strategy that can be well integrated into the framework of natural selection and adaptation. However, challenges remain in understanding imperfect ant mimicry. Here, we combine trait quantification and behavioral assays to investigate imperfect ant mimicry in the jumping spider Siler ...
Hua Zeng
exaly   +3 more sources

Mimicry in motion and morphology: do information limitation, trade-offs or compensation relax selection for mimetic accuracy?

open access: yesProceedings of the Royal Society B: Biological Sciences, 2021
Many animals mimic dangerous or undesirable prey as a defence from predators. We would expect predators to reliably and exclusively avoid animals that closely resemble dangerous prey, yet imperfect mimics are common.
Donald James Mclean, Marie E Herberstein
exaly   +2 more sources
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Predator Cognition Permits Imperfect Coral Snake Mimicry

American Naturalist, 2010
Batesian mimicry is often imprecise. An underexplored explanation for imperfect mimicry is that predators might not be able to use all dimensions of prey phenotype to distinguish mimics from models and thus permit imperfect mimicry to persist. We conducted a field experiment to test whether or not predators can distinguish deadly coral snakes (Micrurus
David W Kikuchi, David W Pfennig
exaly   +3 more sources

Insincere Flattery? Understanding the Evolution of Imperfect Deceptive Mimicry

Quarterly Review of Biology, 2019
AbstractMimicry is the phenotypic resemblance of one organism to another because the resemblance is favored by selection from a signal receiver who perceives the resemblance.
Donald James Mclean   +2 more
exaly   +2 more sources

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