Postattack deimatic display in the mountain katydid, Acripeza reticulata

Umbers, Kate D. L.; Mappes, Johanna

doi:10.1016/j.anbehav.2014.11.009

Cited by 49 publications

(51 citation statements)

References 43 publications

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“…; Stynoski et al. ; Umbers and Mappes ). If color elements of larval and adult warning coloration are genetically correlated, variation expressed in adult coloration could be maintained not only via direct responses to selection on color traits in adults but also through indirect responses of selection on larval coloration and vice versa.…”

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confidence: 99%

“…Furthermore, it is not known how larval and adult defensive coloration covary genetically. Many aposematic insects and vertebrates express bright warning coloration at the between both larval and adult life stages (Marples et al 1994;Gamberale-Stille and Tullberg 1999;Beltran et al 2007;Lindstedt et al 2008Lindstedt et al , 2011Nokelainen et al 2012;Umbers and Mappes 2015). If color elements of larval and adult warning coloration are genetically correlated, variation expressed in adult coloration could be maintained not only via direct responses to selection on color traits in adults but also through indirect responses of selection on larval coloration and vice versa.…”

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Evolutionary constraints of warning signals: A genetic trade-off between the efficacy of larval and adult warning coloration can maintain variation in signal expression

et al. 2016

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Evolutionary constraints of warning signals : a genetic trade-off between the efficacy of larval and adult warning coloration can maintain variation in signal expression. Evolution, 70 (11), 2562Evolution, 70 (11), -2572Evolution, 70 (11), . doi:10.1111 Final DraftThis article has been accepted for publication and undergone full peer review but has not been through the copyediting, typesetting, pagination and proofreading process, which may lead to differences between this version and the Version of Record. Please cite this article as doi: 10.1111/evo.13066. This article is protected by copyright. All rights reserved.

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Evolutionary constraints of warning signals: A genetic trade-off between the efficacy of larval and adult warning coloration can maintain variation in signal expression

et al. 2016

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“…In orthopterans, the katydid Acripeza reticulata is an interesting example of aposematism. They are normally cryptic, but when physically disturbed (when captured by a predator for example), they perform a deimatic display, revealing an intense red coloration hidden under their wings (Umbers & Mappes, ). The display of this secondary defence positively correlates with an increase in walking speed, but the display only occurs after tactile stimulation.…”

Section: Prey Traitsmentioning

confidence: 99%

A review of escape behaviour in orthopterans

Lagos

2017

Journal of Zoology

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In most situations, escaping from a predator may not be a simple decision to make, mainly because of the number and complexity of factors that might influence escape behaviour. There is rich literature on how different factors affect escape behaviour, and on the mechanisms involved, but to date, very little synthesis exist, with the exception for escape behaviour in vertebrates. Little is known about the general patterns affecting the escape decisions in arthropod taxa, even though vast research exists describing how different variables affect their escape behaviour. Here, I'll summarize the main factors that influence the escape decisions in a particular group of arthropods, the orthopterans. I decided to focus on this taxon because we have a good understanding of the neural bases for their escape response as well as their sensory systems. Thus, my objective is to connect general patterns of the escape decisions with the mechanisms explaining how escape behaviour operates.

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“…Unlike flash displays, where an individual reveals color while in motion (i.e., involves rapid locomotion), deimatic displays often reveal conspicuous coloration while stationary (or with more limited locomotion; Umbers et al., 2017; Umbers, Lehtonen, & Mappes, 2015). The bright abdomens of mountain katydids are a great example (Umbers & Mappes, 2015). When at rest, these katydids are cryptically colored, but when disrupted, they open their wings, revealing a contrasting color pattern (Umbers & Mappes, 2015).…”

Section: Introductionmentioning

confidence: 99%

Leaf‐footed bugs possess multiple hidden contrasting color signals, but only one is associated with increased body size

Emberts

Miller

Skojec

et al. 2020

Ecology and Evolution

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Antipredatory displays that incorporate hidden contrasting coloration are found in a variety of different animals. These displays are seen in organisms that have drab coloration at rest, but when disturbed reveal conspicuous coloration. Examples include the bright abdomens of mountain katydids and the colorful underwings of hawk moths. Such hidden displays can function as secondary defenses, enabling evasion of a pursuant predator. To begin to understand why some species have these displays while others do not, we conducted phylogenetic comparative analyses to investigate factors associated with the evolution of hidden contrasting coloration in leaf‐footed bugs. First, we investigated whether hidden contrasting coloration was associated with body size because these displays are considered to be more effective in larger organisms. We then investigated whether hidden contrasting coloration was associated with an alternative antipredatory defense, in this case rapid autotomy. We found that leaf‐footed bugs with hidden contrasting coloration tended to autotomize more slowly, but this result was not statistically significant. We also found that the presence of a body size association was dependent upon the form of the hidden color display. Leaf‐footed bugs that reveal red/orange coloration were the same size, on average, as species without a hidden color display. However, species that reveal white patches on a black background were significantly larger than species without a hidden color display. These results highlight the diversity of forms that hidden contrasting color signal can take, upon which selection may act differently.

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Postattack deimatic display in the mountain katydid, Acripeza reticulata

Cited by 49 publications

References 43 publications

Evolutionary constraints of warning signals: A genetic trade-off between the efficacy of larval and adult warning coloration can maintain variation in signal expression

Evolutionary constraints of warning signals: A genetic trade-off between the efficacy of larval and adult warning coloration can maintain variation in signal expression

A review of escape behaviour in orthopterans

Leaf‐footed bugs possess multiple hidden contrasting color signals, but only one is associated with increased body size

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