Stridulation in<i>Aphodius</i>dung beetles: Songs and morphology of stridulatory organs in North American<i>Aphodius</i>species (Scarabaeidae)

Kasper, Julia; Hirschberger, Petra

doi:10.1080/00222930310001018877

Cited by 14 publications

(8 citation statements)

References 23 publications

(17 reference statements)

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“…Sound production, particularly by stridulation, has been described in numerous beetle groups (Kasper and Hirschberger 2005;Serrano et al 2003). As described by Lyal and King (1996), in many genera of Baridinae two longitudinal rows of plectra are present on the dorsal surface of the 7 th tergite (Figs 920-927).…”

Section: Legsmentioning

confidence: 84%

Morphology of Baridinae and related groups (Coleoptera, Curculionidae)

Davis¹

2009

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Although the phylogenetic classifi cation of Curculionoidea is still in its infant stages, knowledge of the morphology of this large radiation of beetles also is relatively lacking. Few morphological reviews have been done at the family level, and even fewer have examined the subfamily level and below (beyond description of genital morphology). Morphological studies within the subfamily Baridinae are limited and have mostly been restricted to the study of genital morphology, with a few exceptions. Th is study provides a fairly comprehensive, though by no means exhaustive, review of baridine external and internal morphology to aid future studies on the group, particularly in phylogenetics.

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Section: Legsmentioning

confidence: 84%

Morphology of Baridinae and related groups (Coleoptera, Curculionidae)

Davis¹

2009

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“…For example, stridulation by an individual prior to entering the gallery of a conspecific is a necessity for several scolytine species, including Dendroctonus ponderosae Hopkins (Fleming et al., ), Dendroctonus valens (LeConte) (Lindeman & Yack, ), and Ips confusus (LeConte) (Barr, ). Stridulation is also an important prezygotic barrier in free‐living species, including species within Geotrupidae (Carisio et al., ), Hydrophilidae (Van Tassell, ), Silphidae (Hall et al., ), and Scarabaeidae (Kasper & Hirschberger, ). We predicted therefore that copulation would be attempted either immediately or shortly after either party completed sound‐producing behaviors.…”

Section: Discussionmentioning

confidence: 99%

Influence of light on sound production behaviors in the emerald ash borer, Agrilus planipennis

Silk

Roscoe

Brophy

et al. 2018

Entomologia Exp Applicata

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Recent research has demonstrated that the emerald ash borer, Agrilus planipennis Fairmaire (Coleoptera: Buprestidae), uses visual and chemical cues when locating potential mates and host trees. Here, we present the first evidence of the production of possible acoustic cues generated by adult males and females. We demonstrate for the first time that simultaneous wing opening and head ‘pumping’ in both males and females produce specific and distinct sounds. Acoustic recordings demonstrate that these sounds consist of a phrase comprising a ‘click’ generated by wing opening, followed by two separate chirps corresponding to the outward and subsequent inward movement of the head. Mean primary and secondary chirp durations were 0.332 ± 0.038 and 0.414 ± 0.046 s for males and 0.414 ± 0.046 and 0.389 ± 0.032 s for females, respectively. Overall mean phrase durations were 0.905 ± 0.114 s in males and 1.133 ± 0.133 s in females. Mean maximum phrase frequencies were 8 706.1 ± 141.1 and 7 885.0 ± 499.2 Hz in males and females, respectively. There were no significant differences in sound parameters between males and females. To determine whether these events were related to mating pair formation, we observed the occurrence of these events in adults paired with either another male or female and lone adults, and observed the number of mating pairs in copula formed during or shortly after sound production by either of the mating party. The mean number of sound‐generating events per min was significantly greater in males paired with females (0.75 ± 0.15) and/or other males (0.55 ± 0.23) vs. unpaired males (0.14 ± 0.06). Conversely, the mean number of sound‐producing events for lone females (1.4 ± 0.2) was significantly greater than for females paired with either males (0.49 ± 0.18) or other females (0.38 ± 0.10). No mating pairs in copula were formed during any of our observations. Scanning electron microscopy images showed the presence of possible pars stridens and plectrum structures on the ventral surfaces of the gula and pronotum in both males and females. Furthermore, we observed that the proportion of males and females exhibiting these specific behaviors were significantly greater under both halogen and incandescent light than under darkness, signifying the importance of light source or type on the production of acoustic signals. Although we did not find evidence of these behaviors being related to the courtship sequence, our results indicate the presence of a previously undescribed sound‐generation behavior in A. planipennis that is significantly influenced by light conditions.

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“…Furthermore, sex‐specific signals in dung beetles may not be chemical: acoustic signals have been shown to play a role in aggregation in other Aphodius species (Hirschberger, ; Kasper & Hirschberger, ). However, acoustic signals are unlikely to have contributed to dung choice in this experiment as they are effective only at close range, being received mechanically from within the dung pat (Hirschberger, ).…”

Section: Resultsmentioning

confidence: 99%

Evidence that sex‐specific signals may support mate finding and limit aggregation in the dung beetle Aphodius fossor

Manning

Ford

2016

Ecological Entomology

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1. In temperate climates, dung is often colonised by several species of endocoprid (dwelling) dung beetles which use pats for feeding, shelter, and reproduction. 2. Endocoprid beetles aggregate even when offered patches (dung pats) of consistent age, size, and origin, suggesting that beetles themselves might influence the attractiveness of patches to members of their own species. Both pheromones, and physical changes to the structure of dung pats caused by colonising beetles have been suggested as mechanisms facilitating intraspecific aggregation, but neither of these hypotheses have been empirically tested. 3. Using a common European dung beetle (Aphodius fossor L.), we conducted a simple choice experiment designed to test whether (i) earlier colonisation by conspecifics could alter dung attractiveness and (ii) whether attraction was influenced by sex‐specific signals. 4. We found that female beetles are repelled by dung colonised by conspecific females and are attracted to dung colonised by conspecific males. Male beetles show no evidence of attraction or repellence for dung colonised by either sex. Neither in females nor males was uncolonised dung found to be significantly more or less attractive than predicted by non‐preference. 5. Our results suggest that for A. fossor male‐produced signals may support mate finding in patchy environments, and that female‐produced signals may serve to discourage subsequent colonisation by additional females.

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Stridulation inAphodiusdung beetles: Songs and morphology of stridulatory organs in North AmericanAphodiusspecies (Scarabaeidae)

Cited by 14 publications

References 23 publications

Morphology of Baridinae and related groups (Coleoptera, Curculionidae)

Morphology of Baridinae and related groups (Coleoptera, Curculionidae)

Influence of light on sound production behaviors in the emerald ash borer, Agrilus planipennis

Evidence that sex‐specific signals may support mate finding and limit aggregation in the dung beetle Aphodius fossor

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