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Szrajer S, Gray D, Ylla G. The genome assembly and annotation of the cricket Gryllus longicercus. Sci Data 2024; 11:708. [PMID: 38942791 PMCID: PMC11213874 DOI: 10.1038/s41597-024-03554-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2024] [Accepted: 06/19/2024] [Indexed: 06/30/2024] Open
Abstract
The order Orthoptera includes insects such as grasshoppers, katydids, and crickets, among which there are important species for ecosystem stability and pollination, as well as research organisms in different fields such as neurobiology, ecology, and evolution. Crickets, with more than 2,400 described species, are emerging as novel model research organisms, for their diversity, worldwide distribution, regeneration capacity, and their characteristic acoustic communication. Here we report the assembly and annotation of the first New World cricket, that of Gryllus longicercus Weissman & Gray 2019. The genome assembly, generated by combining 44.54 Gb of long reads from PacBio and 120.44 Gb of short Illumina reads, has a length of 1.85 Gb. The genome annotation yielded 19,715 transcripts from 14,789 gene models.
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Affiliation(s)
- Szymon Szrajer
- Laboratory of Bioinformatics and Genome Biology, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Kraków, 30-387, Poland
| | - David Gray
- Department of Biology, California State University Northridge, Northridge, CA, 91330-8303, USA.
| | - Guillem Ylla
- Laboratory of Bioinformatics and Genome Biology, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Kraków, 30-387, Poland.
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2
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Gray DA. Sexual selection and 'species recognition' revisited: serial processing and order-of-operations in mate choice. Proc Biol Sci 2022; 289:20212687. [PMID: 35317675 PMCID: PMC8941403 DOI: 10.1098/rspb.2021.2687] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Following the modern synthesis, mating signals were thought of principally as species recognition traits, a view later challenged by a burgeoning interest in sexual selection-specifically mate choice. In the 1990s, these different signal functions were proposed to represent a single process driven by the shape of female preference functions across both intra- and interspecific signal space. However, the properties of reliable 'recognition' signals (stereotyped; low intraspecific variation) and informative 'quality' signals (condition dependent; high intraspecific variation) seem at odds, perhaps favouring different signal components for different functions. Surprisingly, the idea that different components of mating signals are evaluated in series, first to recognize generally compatible mates and then to select for quality, has never been explicitly tested. Here I evaluate patterns of (i) intraspecific signal variation, (ii) female preference function shape and (iii) phylogenetic signal for male cricket call components known to be processed in series. The results show that signal components processed first tend to have low variation, closed preference functions and low phylogenetic signal, whereas signal components processed later show the opposite, suggesting that mating signal evaluation follows an 'order-of-operations'. Applicability of this finding to diverse groups of organisms and sensory modalities is discussed.
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Affiliation(s)
- David A Gray
- Department of Biology, California State University Northridge, 18111 Nordhoff Street, Northridge, CA 91330-8303, USA
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3
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Clemens J, Schöneich S, Kostarakos K, Hennig RM, Hedwig B. A small, computationally flexible network produces the phenotypic diversity of song recognition in crickets. eLife 2021; 10:e61475. [PMID: 34761750 PMCID: PMC8635984 DOI: 10.7554/elife.61475] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2020] [Accepted: 11/03/2021] [Indexed: 01/31/2023] Open
Abstract
How neural networks evolved to generate the diversity of species-specific communication signals is unknown. For receivers of the signals, one hypothesis is that novel recognition phenotypes arise from parameter variation in computationally flexible feature detection networks. We test this hypothesis in crickets, where males generate and females recognize the mating songs with a species-specific pulse pattern, by investigating whether the song recognition network in the cricket brain has the computational flexibility to recognize different temporal features. Using electrophysiological recordings from the network that recognizes crucial properties of the pulse pattern on the short timescale in the cricket Gryllus bimaculatus, we built a computational model that reproduces the neuronal and behavioral tuning of that species. An analysis of the model's parameter space reveals that the network can provide all recognition phenotypes for pulse duration and pause known in crickets and even other insects. Phenotypic diversity in the model is consistent with known preference types in crickets and other insects, and arises from computations that likely evolved to increase energy efficiency and robustness of pattern recognition. The model's parameter to phenotype mapping is degenerate - different network parameters can create similar changes in the phenotype - which likely supports evolutionary plasticity. Our study suggests that computationally flexible networks underlie the diverse pattern recognition phenotypes, and we reveal network properties that constrain and support behavioral diversity.
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Affiliation(s)
- Jan Clemens
- European Neuroscience Institute Göttingen – A Joint Initiative of the University Medical Center Göttingen and the Max-Planck SocietyGöttingenGermany
- BCCN GöttingenGöttingenGermany
| | - Stefan Schöneich
- University of Cambridge, Department of ZoologyCambridgeUnited Kingdom
- Friedrich-Schiller-University Jena, Institute for Zoology and Evolutionary ResearchJenaGermany
| | - Konstantinos Kostarakos
- University of Cambridge, Department of ZoologyCambridgeUnited Kingdom
- Institute of Biology, University of GrazUniversitätsplatzAustria
| | - R Matthias Hennig
- Humboldt-Universität zu Berlin, Department of BiologyPhilippstrasseGermany
| | - Berthold Hedwig
- University of Cambridge, Department of ZoologyCambridgeUnited Kingdom
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Dobbs OL, Talavera JB, Rossi SM, Menjivar S, Gray DA. Signaler-receiver-eavesdropper: Risks and rewards of variation in the dominant frequency of male cricket calls. Ecol Evol 2020; 10:12364-12371. [PMID: 33209294 PMCID: PMC7663976 DOI: 10.1002/ece3.6866] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2020] [Revised: 09/01/2020] [Accepted: 09/10/2020] [Indexed: 11/09/2022] Open
Abstract
Signals are important for communication and mating, and while they can benefit an individual, they can also be costly and dangerous. Male field crickets call in order to attract female crickets, but gravid females of a parasitoid fly species, Ormia ochracea, are also attracted to the call and use it to pinpoint male cricket hosts. Conspicuousness of the call can vary with frequency, amplitude, and temporal features. Previous work with this system has only considered temporal variation in cricket calls, both large scale, that is, amount of calling and at what time of evening, and small scale, that is, aspects of chirp rate, pulse rate, and numbers of pulses per chirp. Because auditory perception in both crickets and flies relies on the matching of the peak frequency of the call with the peripheral sensory system, peak frequency may be subject to selection both from female crickets and from female flies. Here, we used field playbacks of four different versions of the same male Gryllus lineaticeps calling song that only differed in peak frequency (3.3, 4.3, 5.3, and 6.3 kHz) to test the relative attractiveness of the calls to female crickets and female flies. Our results clearly show that lower frequency calls enhance male safety from fly parasitism, but that the enhanced safety would come at a cost of reduced attraction of female crickets as potential mates. The results imply that eavesdropper pressure can disrupt the matched coevolution of signalers and receivers such that the common concept of matched male-female signaler-receiver coevolution may actually be better described as male-female-predator signaler-receiver-eavesdropper coevolution.
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Affiliation(s)
- Olivia L. Dobbs
- Department of BiologyCalifornia State University NorthridgeNorthridgeCAUSA
| | | | - Sarina M. Rossi
- Department of BiologyCalifornia State University NorthridgeNorthridgeCAUSA
| | - Stephanie Menjivar
- Department of BiologyCalifornia State University NorthridgeNorthridgeCAUSA
| | - David A. Gray
- Department of BiologyCalifornia State University NorthridgeNorthridgeCAUSA
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5
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Neuroethology of acoustic communication in field crickets - from signal generation to song recognition in an insect brain. Prog Neurobiol 2020; 194:101882. [PMID: 32673695 DOI: 10.1016/j.pneurobio.2020.101882] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2020] [Revised: 06/25/2020] [Accepted: 07/05/2020] [Indexed: 11/22/2022]
Abstract
Field crickets are best known for the loud calling songs produced by males to attract conspecific females. This review aims to summarize the current knowledge of the neurobiological basis underlying the acoustic communication for mate finding in field crickets with emphasis on the recent research progress to understand the neuronal networks for motor pattern generation and auditory pattern recognition of the calling song in Gryllus bimaculatus. Strong scientific interest into the neural mechanisms underlying intraspecific communication has driven persistently advancing research efforts to study the male singing behaviour and female phonotaxis for mate finding in these insects. The growing neurobiological understanding also inspired many studies testing verifiable hypotheses in sensory ecology, bioacoustics and on the genetics and evolution of behaviour. Over last decades, acoustic communication in field crickets served as a very successful neuroethological model system. It has contributed significantly to the scientific process of establishing, reconsidering and refining fundamental concepts in behavioural neurosciences such as command neurons, central motor pattern generation, corollary discharge processing and pattern recognition by sensory feature detection, which are basic building blocks of our modern understanding on how nervous systems control and generate behaviour in all animals.
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Kelly CD, Adam-Granger É. Mating with sexually attractive males provides female Gryllus firmus field crickets with direct but not indirect fitness benefits. Behav Ecol Sociobiol 2020. [DOI: 10.1007/s00265-020-02859-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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7
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Gray DA, Kunerth HD, Zuk M, Cade WH, Balenger SL. Molecular biogeography and host relations of a parasitoid fly. Ecol Evol 2019; 9:11476-11493. [PMID: 31641487 PMCID: PMC6802024 DOI: 10.1002/ece3.5649] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2019] [Revised: 08/05/2019] [Accepted: 08/15/2019] [Indexed: 12/14/2022] Open
Abstract
Successful geographic range expansion by parasites and parasitoids may also require host range expansion. Thus, the evolutionary advantages of host specialization may trade off against the ability to exploit new host species encountered in new geographic regions. Here, we use molecular techniques and confirmed host records to examine biogeography, population divergence, and host flexibility of the parasitoid fly, Ormia ochracea (Bigot). Gravid females of this fly find their cricket hosts acoustically by eavesdropping on male cricket calling songs; these songs vary greatly among the known host species of crickets. Using both nuclear and mitochondrial genetic markers, we (a) describe the geographical distribution and subdivision of genetic variation in O. ochracea from across the continental United States, the Mexican states of Sonora and Oaxaca, and populations introduced to Hawaii; (b) demonstrate that the distribution of genetic variation among fly populations is consistent with a single widespread species with regional host specialization, rather than locally differentiated cryptic species; (c) identify the more-probable source populations for the flies introduced to the Hawaiian islands; (d) examine genetic variation and substructure within Hawaii; (e) show that among-population geographic, genetic, and host song distances are all correlated; and (f) discuss specialization and lability in host-finding behavior in light of the diversity of cricket songs serving as host cues in different geographically separate populations.
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Affiliation(s)
- David A. Gray
- Department of BiologyCalifornia State University NorthridgeNorthridgeCAUSA
| | - Henry D. Kunerth
- Department of Ecology and Evolutionary BiologyCornell UniversityIthacaNYUSA
- Department of Ecology, Evolution, and BehaviorUniversity of MinnesotaSt. PaulMNUSA
| | - Marlene Zuk
- Department of Ecology, Evolution, and BehaviorUniversity of MinnesotaSt. PaulMNUSA
| | - William H. Cade
- Department of Biological SciencesUniversity of LethbridgeLethbridgeABCanada
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Baker CA, Clemens J, Murthy M. Acoustic Pattern Recognition and Courtship Songs: Insights from Insects. Annu Rev Neurosci 2019; 42:129-147. [PMID: 30786225 DOI: 10.1146/annurev-neuro-080317-061839] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Across the animal kingdom, social interactions rely on sound production and perception. From simple cricket chirps to more elaborate bird songs, animals go to great lengths to communicate information critical for reproduction and survival via acoustic signals. Insects produce a wide array of songs to attract a mate, and the intended receivers must differentiate these calls from competing sounds, analyze the quality of the sender from spectrotemporal signal properties, and then determine how to react. Insects use numerically simple nervous systems to analyze and respond to courtship songs, making them ideal model systems for uncovering the neural mechanisms underlying acoustic pattern recognition. We highlight here how the combination of behavioral studies and neural recordings in three groups of insects-crickets, grasshoppers, and fruit flies-reveals common strategies for extracting ethologically relevant information from acoustic patterns and how these findings might translate to other systems.
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Affiliation(s)
- Christa A Baker
- Princeton Neuroscience Institute, Princeton University, Princeton, New Jersey 08544, USA;
| | - Jan Clemens
- University Medical Center Goettingen, Max-Planck-Society, European Neuroscience Institute, D-37077 Goettingen, Germany;
| | - Mala Murthy
- Princeton Neuroscience Institute, Princeton University, Princeton, New Jersey 08544, USA;
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9
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Tanner JC, Garbe LM, Zuk M. When virginity matters: age and mating status affect female responsiveness in crickets. Anim Behav 2019. [DOI: 10.1016/j.anbehav.2018.11.006] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Gray DA, Hormozi S, Libby FR, Cohen RW. Induced expression of a vestigial sexual signal. Biol Lett 2018; 14:20180095. [PMID: 29769298 PMCID: PMC6012708 DOI: 10.1098/rsbl.2018.0095] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2018] [Accepted: 04/23/2018] [Indexed: 11/12/2022] Open
Abstract
Vestigial morphological traits are common and well known in a variety of taxa. Identification of vestigial genes has illustrated the potential for evolutionary reversals and the re-expression of atavistic traits. Here we induce expression of a behavioural sexual signal, male calling song, in a cricket species, Gryllus ovisopis, which lacks a functional calling song. We successfully used acetylcholine injections in the frontal space of the head of male crickets to activate cerebral command neurons for cricket calling, and we recorded calling songs with a temporal chirp pattern similar to that of G. ovisopis' close evolutionary relatives, G. firmus and G. pennsylvanicus, implying that the neural pattern generators that underlie cricket calling behaviour persist in a vestigial state in G. ovisopis To our knowledge, this is the first demonstration of the induced expression of a vestigial behaviour in any organism. The retention of latent neural capacity to express sexual behaviours could have important implications for rapid evolution, trait re-emergence and reproductive isolation.
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Affiliation(s)
- David A Gray
- Department of Biology, California State University, Northridge, 18111 Nordhoff Street, Northridge, CA 91330-8303, USA
| | - Scherezade Hormozi
- Department of Biology, California State University, Northridge, 18111 Nordhoff Street, Northridge, CA 91330-8303, USA
| | - Fritz R Libby
- Department of Biology, California State University, Northridge, 18111 Nordhoff Street, Northridge, CA 91330-8303, USA
| | - Randy W Cohen
- Department of Biology, California State University, Northridge, 18111 Nordhoff Street, Northridge, CA 91330-8303, USA
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11
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Shahandeh MP, Pischedda A, Turner TL. Male mate choice via cuticular hydrocarbon pheromones drives reproductive isolation between Drosophila species. Evolution 2018; 72:123-135. [PMID: 29098691 PMCID: PMC5760347 DOI: 10.1111/evo.13389] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2017] [Revised: 10/16/2017] [Accepted: 10/30/2017] [Indexed: 01/17/2023]
Abstract
Mate discrimination is a key mechanism restricting gene flow between species. While studied extensively with respect to female mate choice, mechanisms of male mate choice between species are far less studied. Thus, we have little knowledge of the relative frequency, importance, or overall contribution of male mate discrimination to reproductive isolation. In the present study, we estimated the relative contributions of male and female choice to reproductive isolation between Drosophila simulans and D. sechellia, and show that male mate discrimination accounts for the majority of the current isolation between these species. We further demonstrate that males discriminate based on female cuticular hydrocarbon pheromones, and collect evidence supporting the hypothesis that male mate discrimination may alleviate the costs associated with heterospecific courtship and mating. Our findings highlight the potentially significant contribution of male mate choice to the formation of reproductive isolating barriers, and thus the speciation process.
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Affiliation(s)
- Michael P. Shahandeh
- Department of Ecology, Evolution, and Marine Biology, University of California Santa Barbara
| | - Alison Pischedda
- Department of Biology, Barnard College, Columbia University, New York NY 10027
| | - Thomas L. Turner
- Department of Ecology, Evolution, and Marine Biology, University of California Santa Barbara
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12
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Gray DA, Gabel E, Blankers T, Hennig RM. Multivariate female preference tests reveal latent perceptual biases. Proc Biol Sci 2017; 283:rspb.2016.1972. [PMID: 27807265 DOI: 10.1098/rspb.2016.1972] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2016] [Accepted: 10/10/2016] [Indexed: 11/12/2022] Open
Abstract
The question of why males of many species produce elaborate mating displays has now been largely resolved: females prefer to mate with males that produce such displays. However, the question of why females prefer such displays has been controversial, with an emerging consensus that such displays often provide information to females about the direct fitness benefits that males provide to females and/or the indirect fitness benefits provided to offspring. Alternative explanations, such as production of arbitrarily attractive sons or innate pre-existing female sensory or perceptual bias, have also received support in certain taxa. Here, we describe multivariate female preference functions for male acoustic traits in two chirping species of field crickets with slow pulse rates; our data reveal cryptic female preferences for long trills that have not previously been observed in other chirping species. The trill preferences are evolutionarily pre-existing in the sense that males have not (yet?) exploited them, and they coexist with chirp preferences as alternative stable states within female song preference space. We discuss escape from neuronal adaptation as a possible mechanism underlying such latent preferences.
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Affiliation(s)
- D A Gray
- Department of Biology, California State University Northridge, Northridge, CA, USA
| | - E Gabel
- Behavioural Physiology, Department of Biology, Humboldt-Universität zu Berlin, Berlin, Germany
| | - T Blankers
- Behavioural Physiology, Department of Biology, Humboldt-Universität zu Berlin, Berlin, Germany.,Museum für Naturkunde Berlin, Leibniz Institute for Evolution and Biodiversity Science, Berlin, Germany
| | - R M Hennig
- Behavioural Physiology, Department of Biology, Humboldt-Universität zu Berlin, Berlin, Germany
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13
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Blankers T, Block R, Hennig RM. Codivergence but Limited Covariance of Wing Shape and Calling Song Structure in Field Crickets (Gryllus). Evol Biol 2017. [DOI: 10.1007/s11692-017-9439-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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14
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Erregger B, Kovac H, Stabentheiner A, Hartbauer M, Römer H, Schmidt AKD. Cranking up the heat: relationships between energetically costly song features and the increase in thorax temperature in male crickets and katydids. J Exp Biol 2017; 220:2635-2644. [PMID: 28495874 PMCID: PMC5873499 DOI: 10.1242/jeb.155846] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2017] [Accepted: 05/08/2017] [Indexed: 11/20/2022]
Abstract
Sexual displays of acoustically signalling insects are used in the context of mate attraction and mate choice. While energetic investment in sound production can increase the reproductive success of the sender, this entails metabolic costs. Resource allocation to sexually selected, reproductive traits can trade off against allocation to naturally selected traits (e.g. growth, immunity) when individuals' energy budgets are limited. Estimating the magnitude of the costs invested in acoustic signalling is necessary to understand this trade-off and its influence on fitness and life history. To compare the costs associated with acoustic signalling for two ensiferan species, we simultaneously took respiratory measurements to record the rate of CO2 production and used infrared thermography to measure the increase in thorax temperature. Furthermore, to identify what combinations of acoustic parameters were energetically costly for the sender, we recorded the calling songs of 22 different cricket and katydid species for a comparative analysis and measured their thorax temperature while they sang. Acoustic signalling was energetically costly for Mecopoda sp. and Anurogryllus muticus, requiring a 12- and 16-fold increase over resting levels in the CO2 production rate. Moreover, calling increased thorax temperature, on average by 7.6 and 5.8°C, respectively. We found that the song intensity and effective calling rate, not simply the chirp/trill duty cycle or the pulse rate alone, were good predictors for the thorax temperature increase in males.
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Affiliation(s)
- Bettina Erregger
- Department of Zoology, University of Graz, Universitaetsplatz 2, Graz 8010, Austria
| | - Helmut Kovac
- Department of Zoology, University of Graz, Universitaetsplatz 2, Graz 8010, Austria
| | - Anton Stabentheiner
- Department of Zoology, University of Graz, Universitaetsplatz 2, Graz 8010, Austria
| | - Manfred Hartbauer
- Department of Zoology, University of Graz, Universitaetsplatz 2, Graz 8010, Austria
| | - Heinrich Römer
- Department of Zoology, University of Graz, Universitaetsplatz 2, Graz 8010, Austria
| | - Arne K D Schmidt
- Department of Zoology, University of Graz, Universitaetsplatz 2, Graz 8010, Austria
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16
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Kilmer JT, Fowler‐Finn KD, Gray DA, Höbel G, Rebar D, Reichert MS, Rodríguez RL. Describing mate preference functions and other function‐valued traits. J Evol Biol 2017; 30:1658-1673. [DOI: 10.1111/jeb.13122] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2017] [Revised: 05/18/2017] [Accepted: 05/22/2017] [Indexed: 12/26/2022]
Affiliation(s)
- J. T. Kilmer
- Behavioral & Molecular Ecology Group Department of Biological Sciences University of Wisconsin–Milwaukee Milwaukee WI USA
| | | | - D. A. Gray
- Department of Biology California State University Northridge Northridge CA USA
| | - G. Höbel
- Behavioral & Molecular Ecology Group Department of Biological Sciences University of Wisconsin–Milwaukee Milwaukee WI USA
| | - D. Rebar
- Department of Zoology University of Cambridge Cambridge UK
| | - M. S. Reichert
- School of Biological, Earth and Environmental Science University College Cork Cork Ireland
| | - R. L. Rodríguez
- Behavioral & Molecular Ecology Group Department of Biological Sciences University of Wisconsin–Milwaukee Milwaukee WI USA
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17
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Multivariate Phenotypic Evolution: Divergent Acoustic Signals and Sexual Selection in Gryllus Field Crickets. Evol Biol 2016. [DOI: 10.1007/s11692-016-9388-1] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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18
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Gabel E, Gray DA, Matthias Hennig R. How females of chirping and trilling field crickets integrate the 'what' and 'where' of male acoustic signals during decision making. J Comp Physiol A Neuroethol Sens Neural Behav Physiol 2016; 202:823-837. [PMID: 27638304 DOI: 10.1007/s00359-016-1124-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2016] [Revised: 09/03/2016] [Accepted: 09/06/2016] [Indexed: 10/21/2022]
Abstract
In crickets acoustic communication serves mate selection. Female crickets have to perceive and integrate male cues relevant for mate choice while confronted with several different signals in an acoustically diverse background. Overall female decisions are based on the attractiveness of the temporal pattern (informative about the 'what') and on signal intensity (informative about the 'where') of male calling songs. Here, we investigated how the relevant cues for mate choice are integrated during the decision process by females of five different species of chirping and trilling field crickets. Using a behavioral design, female preferences in no-choice and choice situations for male calling songs differing in pulse rate, modulation depth, intensities, chirp/trill arrangements and temporal shifts were examined. Sensory processing underlying decisions in female field crickets is rather similar as combined evidence suggested that incoming song patterns were analyzed separately by bilaterally paired networks for pattern attractiveness and pattern intensity. A downstream gain control mechanism leads to a weighting of the intensity cue by pattern attractiveness. While remarkable differences between species were observed with respect to specific processing steps, closely related species exhibited more similar preferences than did more distantly related species.
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Affiliation(s)
- Eileen Gabel
- Department of Biology, Behavioral Physiology, Humboldt-Universität zu Berlin, Invalidenstraße 43, 10115, Berlin, Germany.
| | - David A Gray
- Department of Biology, California State University Northridge, Northridge, CA, USA
| | - R Matthias Hennig
- Department of Biology, Behavioral Physiology, Humboldt-Universität zu Berlin, Invalidenstraße 43, 10115, Berlin, Germany
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