Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 8 of 8 for “"Müllerian mimicry"”.
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Behavioural and ecological interactions between Heliconius butterflies, their predators and host plants
Heliconius butterflies exhibit Müllerian mimicry, in which two or more unpalatable species share a mutual advantage from having a common conspicuous colour pattern. These tropical butterflies have impressive visual signals, which are under conflicting selection pressures, as they are used in …
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Mathematical quantification and statistical analysis of bombus (hymenoptera:apidae) dorsal color patterns
Evolution of Müllerian mimicry [similarity in appearance that confers protection to two or more organisms which are unpalatable or hazardous to a common predator (Wickler 1965)] has been an important topic in the study of evolutionary adaptation and visual signaling via color patterns since Fritz …
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The genomic basis of species barriers in Heliconius butterflies
… of neotropical butterfly best know for their Müllerian mimicry. Here I focus on Heliconius cydno and Heliconius melpomene, two hybridising sympatric species with low levels of inter-specific hybridisation that nonetheless results in genome-wide signatures of admixture. I show that hybrids …
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Developmental timing of pupation and analysis of color pattern response to thermal stress in Bombus impatiens (Hymenoptera: Apidae)
… ecological adaptability. As purported members of Müllerian mimicry complexes, the evolution of divergent and convergent color patterns within and among species appears to play an important role in bumble bee speciation. Distantly related species that share a common geographic range sometimes …
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Avian diet and visual perception suggests avian predation selects for color pattern mimicry in bumble bees
Mimicry theory was developed by H. W. Bates and F. Müller based on their observations of similarities among butterflies, and since publication their theories have been used to explain numerous other mimicry systems. Bumble bees can be found in throughout the temperate parts of the word, as well as …
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Developmental Basis of Wing Pattern Diversity in Heliconius Butterflies
… on remarkably similar wing patterns due to Müllerian mimicry. Linkage analysis of wing pattern genes has shown that in both species, there are three genomic loci that are responsible for most of the pattern variation, and that these loci are homologous. One locus, containing the …
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Hiding in plain sight: unveiling cryptic diversity and patterns in bumble bees
… distribution has served as a classic example of Müllerian mimicry. Yet nothing is known about the developmental regulation of these color patterns. As a first step in exploring the developmental regulation of color, I mapped the color patterns across the body of individual species with high …
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Intra and inter-specific communication in Heliconius
… Heliconius son un excelente ejemplo de mimetismo Mülleriano, donde especies filogenéticamente distantes convergen en un fenotipo alar casi idéntico cuando se encuentran en simpatría. Sin embargo, pocos estudios han abordado de manera integral la precisión del mimetismo y la variación que existe en …