Color Change from male-mimic to Gynomorphic: a New Aspect of Signaling Sexual Status in Damselflies (Odonata, Zygoptera)

Huang, Shao-Chang; Reinhard, Judith

doi:10.1093/beheco/ars112

Cited by 22 publications

(33 citation statements)

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“…Signalling sexual maturity through change in colour has been reported in many taxa including insects, amphibians, reptiles and birds (Bell & Zamudio, ; Chan, Stuart‐Fox, & Jessop, ; Corbet, ; Griggio, Devigili, Hoi, & Pilastro, ). Ischnura heterosticta , I. genei, I. elegans and I. senegalensis females change colour during ontogenesis; juvenile females carry fewer eggs and mate less frequently than adult females (Hinnekint, ; Huang & Reinhard, ; Sanmartín‐Villar & Cordero‐Rivera, ; Takahashi & Watanabe, ). In I. elegans , the males also change colour from green to blue, which correlates with spermatogenesis (Henze et al, ; Hinnekint, ).…”

Section: Discussionmentioning

confidence: 99%

“…Intrasexual colour variation is a common phenomenon in odonates either due to genetic variation or because of developmental constraints (Corbet, ). In odonates, genetic and ontogenetic colour variation can occur in both sexes, or it can be limited to either males or females (Huang & Reinhard, ; Sanmartín‐Villar, Zhang, & Cordero‐Rivera, ; Willink, Duryea, Wheat, & Svensson, ). Genetically, determined female polychromatism occurs in sexually mature and immature in Ischnura senegalensis, I. elegans , and I. genei damselflies (Sanmartín‐Villar & Cordero‐Rivera, ; Takahashi & Watanabe, ; Willink et al, ).…”

Section: Introductionmentioning

confidence: 99%

“…Ontogenetic colour change is an irreversible colour change during the development of an organism. The developmental colour forms may signal age (Nicolaus et al, 2007), fitness (Beeching & Pike, 2010), fecundity (Takahashi & Watanabe, 2011) and/or sexual readiness (Huang & Reinhard, 2012;Wilson, Heinsohn, & Wood, 2006). In cases where developmental stages signal sexual maturity, juvenile males are often dull coloured and subordinate to conspicuous dominant males.…”

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Ontogenetic colour change signals sexual maturity in a non‐territorial damselfly

Khan

Herberstein

2019

Ethology

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Conspicuous colouration increases male reproductive success through female preferences and/or male–male competition. Despite the advantages of conspicuous colouration, inconspicuous male morphs can exist simultaneously in a population due to genetic diversity, condition dependence or developmental constraints. We are interested in explaining the male dichromatism in Xanthagrion erythroneurum damselflies. We reared these damselflies in outdoor insectaries under natural conditions and showed that this species undergoes ontogenetic colour changes. The younger males are yellow and change colour to red 6–7 days after their emergence. We took red and yellow male reflectance spectra and found that red males are brighter than yellow males. Next, we aimed to determine whether ontogenetic colour change signals sexual maturity with field observations and laboratory experiments. Our field observational data showed that red males are in higher abundance in the breeding territory, and they have a higher mating frequency than yellow males. We confirmed these field observations by enclosing a red and a yellow male with two females and found that yellow males do not mate in presence of red males. To determine whether colour change signals sexual maturity, we measured mating success of males before and after colour changes by enclosing a single male at different age (day 3‐day 7) and colour (yellow, intermediate and red) with a single female in a mating cage. Males did not mate when yellow but the same male mated after it changed colour to red, suggesting the ontogenetic colour change signals sexual maturity in this species. Our study shows that male dichromatism can be age‐dependent and ontogenetic colour change can signal age and sexual readiness in non‐territorial insects.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Ontogenetic colour change signals sexual maturity in a non‐territorial damselfly

Khan

Herberstein

2019

Ethology

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“…Hence, through judicious incorporation of stimuli-responsive materials into DraBot, it was able to not only sense and adapt to environmental pH changes in water, but also report on such perturbations via observable changes in motion. Second, we mimicked the thermo-responsive color changes in dragonflies (23,24) by encoding DraBot's wings with a thermochromic pigment which changes color in response to temperature changes, wherein the wing color changed smoothly from red to yellow with increase in temperature ( Fig. 4D, and Movie S10).…”

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confidence: 99%

Dragonfly Inspired Smart Soft Robot

Kumar¹,

Zhou

et al. 2020

Preprint

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Recent advancements in soft robotics have led to the development of compliant robots that can exhibit complex motions driven by living cells(1, 2), chemical reactions(3), or electronics(4). Further innovations are however needed to create the next generation of soft robots that can carry out advanced functions beyond locomotion. Here we describe DraBot-a dragonfly-inspired, entirely soft, multifunctional robot that combines longterm locomotion over water surface with sensing, responding, and adaptation capabilities. By integrating soft actuators, stimuli-responsive materials, and microarchitectural features, we created a circuitry of pneumatic and microfluidic logic that enabled the robot to undergo user-and environment-controlled (pH) locomotion, including navigating hazardous (acidic) conditions. DraBot was also engineered to sense additional environmental perturbations (temperature) and detect and clean up chemicals (oil). The design, fabrication, and integration strategies demonstrated here pave a way for developing futuristic soft robots that can acclimatize and adapt to harsh conditions while carrying out complex tasks such as exploration, environmental remediation, and health care in complex environments.

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“…Occurrence of andromorphs in Odonata regarded as an evolutionary response to sexual harassment by mate searching males (Fincke 2004;Miller and Fincke 2004). The functional role of male-mimicking coloration in mature females is known to reduce the sexual harassments by males (Huang and Reinhard 2012). Although, andromorphs would favoured in high population density, as their male like appearance reduces the male disturbance.…”

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confidence: 99%

Andromorphic Crocothemis servilia (Drury) (Odonata: Libellulidae): new records from India

Payra¹

2019

RCHE

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Revista Chilena de Entomología (2019) 45 (4): 699-703. Este es un artículo de acceso abierto distribuido bajo los términos de la licencia Creative Commons License (CC BY NC 4.0) Scientific Note Andromorphic Crocothemis servilia (Drury) (Odonata: Libellulidae): new records from India Odonato andromórfico Crocothemis servilia (Drury) (Odonata: Libellulidae): nuevos registros de la India Abstract. Six new records of andromorphic Crocothemis servilia from Eastern India are described here. Detail comparisons of the andromorphic female with mature male and female of this species are given.Resumen. Se describen cuatro nuevos registros del odonato andromórfico Crocothemis servilia del este de la India. Se dan comparaciones detalladas de la hembra andromórfica con machos y hembras maduras de esta especie.

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Color Change from male-mimic to Gynomorphic: a New Aspect of Signaling Sexual Status in Damselflies (Odonata, Zygoptera)

Cited by 22 publications

References 33 publications

Ontogenetic colour change signals sexual maturity in a non‐territorial damselfly

Ontogenetic colour change signals sexual maturity in a non‐territorial damselfly

Dragonfly Inspired Smart Soft Robot

Andromorphic Crocothemis servilia (Drury) (Odonata: Libellulidae): new records from India

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