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12 results for “aposematic colour”
Dataset, R code and metadata for Lim et al., Pattern matters in the aposematic colouration of Papilio polytes butterflies
<p>Dataset, R code and metadata for Lim et al., Pattern matters in the aposematic colouration of Papilio polytes butterflies.</p>
Data from: Body size rather than reflectivity explains thermal constraints on colour variation in an aposematic jewel bug
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Defensive colouration is not a reliable indicator of fungal infection in aposematic poison frogs
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FIGURES 14–25 in New species of Ischalia Pascoe, 1860 (Coleoptera: Ischaliidae), with a key to aposematically coloured species from continental Asia, and new notes on their mimicry
FIGURES 14–25. General view of Ischaliidae, Lycidae, Cantharidae and Anthicidae (mimicry complex). 14—Ischalia (s. str.) anhuiensis Kazantsev et Young, 2010; 15—I. (s. str.) lama Kazantsev et Young, 2010; 16—I. (s. str.) martensi Paulus, 1971; 17—I. (s. str.) laosensis sp. nov.; 18— Libnetisia latrunculus (Kazantsev, 2000) (Lycidae); 19—Libnetus piceovittatus Kazantsev, 1992 (Lycidae); 20—Dihammatus brancuccii Kazantsev, 1992 (Lycidae); 21—Plateros suturalis (Pic, 1926) (Lycidae); 22—P. macrosuturalis Kazantsev, 1991 (Lycidae); 23—Lycocerus sp. (Cantharidae) 24—Anthicomorphus himalayanus Telnov, 2010 (Anthicidae); 25—A. pasteuri Pic, 1901 (Anthicidae). Not reproduced to the same scale.
FIGURES 8–13 in New species of Ischalia Pascoe, 1860 (Coleoptera: Ischaliidae), with a key to aposematically coloured species from continental Asia, and new notes on their mimicry
FIGURES 8–13. General view and details of Ischalia spp.: 8—I. (s. str.) holzschuhi sp. nov., holotype female, general view, dorsally, 9—I. (s. str.) martensi Paulus, 1971, male, general view, dorsally, 10—same, invaginated tergite, ventrally, 11—same, aedeagus, ventrally, 12—same, laterally; 13—I. (Eupleurida) sichuanensis Young, 2008, male, aedeagus, ventrally. Scale bars: 1.0 mm.
Data for: Size-dependent colouration balances conspicuous aposematism and camouflage
<p>Colour is an important component of many different defensive strategies, but signal efficacy and detectability will also depend on the size of the coloured structures, and how pattern size interacts with the background. Consequently, size-dependent changes in colouration are common among many different species as juveniles and adults frequently use colour for different purposes in different environmental contexts. A widespread strategy in many species is switching from crypsis to conspicuous aposematic signalling as increasing body size can reduce the efficacy of camouflage, while other antipredator defences may strengthen. Curiously, despite being chemically defended, the gold-striped frog (<i>Lithodytes lineatus</i>, Leptodactylidae) appears to do the opposite, with bright yellow stripes found in smaller individuals whereas larger frogs exhibit dull brown stripes. Here, we investigated whether size-dependent differences in colour support distinct defensive strategies. We first used visual modelling of potential predators to assess how colour contrast varied among frogs of different sizes. We found that contrast peaked in mid-sized individuals while the largest individuals had the least contrasting patterns. We then used two detection experiments with human participants to evaluate how colour and body size affected overall detectability. These experiments revealed that larger body sizes were easier to detect, but that the colours of smaller frogs were more detectable than those of larger frogs. Taken together our data support the hypothesis that the primary defensive strategy changes from conspicuous aposematism to camouflage with increasing size, implying size-dependent differences in the efficacy of defensive colouration. We discuss our data in relation to theories of size-dependent aposematism and evaluate the evidence for and against a possible size-dependent mimicry complex with sympatric poison frogs (Dendrobatidae). </p>
Data for: Size-dependent colouration balances conspicuous aposematism and camouflage
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Data from: An aposematic colour-polymorphic moth seen through the eyes of conspecifics and predators - sensitivity and colour discrimination in a tiger moth
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Data from: Prey with hidden colour defences benefit from their similarity to aposematic signals
<p>Some camouflaged animals hide colour signals and display them only transiently. These hidden colour signals are often conspicuous and are used as a secondary defence to warn or startle predators (deimatic displays) and/or to confuse them (flash displays). The hidden signals used in these displays frequently resemble typical aposematic signals, so it is possible that prey with hidden signals have evolved to employ colour patterns of a form that predators have previously learned to associate with unprofitability. Here, we tested this hypothesis by conducting two experiments that examined the effect of predator avoidance learning on the efficacy of deimatic and flash displays. We found that the survival benefits of both deimatic and flash displays were substantially higher against educated predators than naïve ones. These findings help explain the phenological patterns we found in 1,568 macro-lepidopteran species on three continents: species with hidden signals tend to occur later in the season than species without hidden signals.</p>
Data from: Phylogenetic comparative analysis supports aposematic colouration–body size association in millipede assassins (Hemiptera: Reduviidae: Ectrichodiinae)
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Data from: Prey with hidden colour defences benefit from their similarity to aposematic signals
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FIGURES 1–7 in New species of Ischalia Pascoe, 1860 (Coleoptera: Ischaliidae), with a key to aposematically coloured species from continental Asia, and new notes on their mimicry
FIGURES 1–7. General view and details of Ischalia spp., holotypes males: 1—I. (s. str.) ancora sp. nov., general view, dorsally, 2—same, invaginated tergite, ventrally, 3—same, aedeagus, ventrally, 4—same, laterally; 5—I. (s. str.) laosensis sp. nov., general view, dorsally, 6—same, aedeagus, ventrally, 7—same, laterally. Scale bars: 1.0 mm.
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Allen Brain Atlas
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DANDI Archive for NWB datasets
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International Brain Laboratory public data
The International Brain Laboratory public data releases expose standardized mouse decision-making experiments, including Neuropixels recordings, widefield calcium imaging, behavior, and session metadata accessed through the ONE API.
OpenNeuro
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