Number and size of clutch in <i>Ptomascopus morio</i> (Coleoptera: Silphidae: Nicrophorinae), with comparisons to <i>Nicrophorus</i>

Nagano, Masahiro; Suzuki, Seizi

doi:10.1111/j.1479-8298.2008.00267.x

Cited by 6 publications

(2 citation statements)

References 22 publications

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“…quadripunctatus , which breeds predominantly from April to May and September to October, but it may not have been for Ni. concolor , which breeds predominantly from July to September, with a peak in August (Nagano & Suzuki, 2003b ). Therefore, to evaluate the effect of DMDS and DMTS on the attraction of Nicrophorus beetles, further experiments that consider the breeding season and use actual carcasses supplemented with DMDS and DMTS individually, as in Trumbo and Dicapua ( 2021 ), are needed.…”

Section: Discussionmentioning

confidence: 99%

The effect of pioneer carrion beetles on the emission of volatile organic compounds and carrion insect community assembly

Ito,

Nishigaki,

Hasegawa

2023

Ecology and Evolution

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Mechanisms of carrion insect succession have been interpreted separately from interspecific interactions between early and later colonists or from changes in volatile organic compounds perceived by insects resulting from the progression of decomposition. To link these perspectives, we examined through laboratory and field experiments whether the modification of volatile organic compounds by early colonists could be a mechanism of succession. In the laboratory experiment, we used Necrophila japonica (Coleoptera, Staphylinidae) as an early colonist and examined its effects on the emissions of important volatile attractants for carrion insects, dimethyl disulfide (DMDS) and dimethyl trisulfide (DMTS) from carcasses. We collected DMDS and DMTS, using the static headspace method, under the following conditions: (i) rat carcass, (ii) rat carcass with artificial damage to the abdomen, (iii) rat carcass fed on by 10 Ne. japonica individuals, and (iv) 10 Ne. japonica individuals, and analyzed the collected gases using a gas chromatograph‐mass spectrometer. After 12 and 30 h, carcasses fed on by Ne. japonica emitted higher concentrations of DMDS and DMTS than in other conditions. In the field experiment, we examined the effects of DMDS and DMTS on the attraction of carrion insects using traps baited with a mixture of DMDS and DMTS, hexane (odors unrelated to carcasses), or an empty microtube. Traps baited with DMDS and DMTS attracted more necrophagous species and individuals than traps not baited with this combination. These results showed that accelerated emissions of DMDS and DMTS from carcasses caused by early colonists may contribute to community assembly during carrion insect succession.

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Section: Discussionmentioning

confidence: 99%

The effect of pioneer carrion beetles on the emission of volatile organic compounds and carrion insect community assembly

Ito,

Nishigaki,

Hasegawa

2023

Ecology and Evolution

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“…The authors interpreted this result as consistent with the ‘semelparity hypothesis’, in that iteroparity was associated with lower levels of maternal care. In another study, Nagano and Suzuki () compared maternal investment in future reproduction between two species of Nicrophorine beetles: Nicrophorus quadripunctatus , which displays more elaborate parental care (carcass preparation, offspring attendance and provisioning); and Ptomascopus morio , which displays simpler parental care (offspring attendance only). In contrast to predictions of the ‘semelparity hypothesis’, the authors found that Nicrophorus quadripunctatus can oviposit several times in one breeding season and that they regulate their clutch size more strictly than P. morio .…”

Section: Ecology Life History and Insect Parental Carementioning

confidence: 99%

The evolution of parental care in insects: the roles of ecology, life history and the social environment

Wong

Meunier

Kölliker

2013

Ecological Entomology

138

125

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Parental care increases the fitness of offspring at a cost to the parents in terms of residual reproductive success. This trade‐off may be affected by ecology, life history and the social environment, which raises the question as to how these factors contribute to the evolution of parental care. Here, previous hypotheses concerning the evolution of parental care in insects are summarized and discussed and the underlying empirical evidence is reviewed. Ecological factors such as harsh environments, ephemeral food sources or predation pressure are broadly accepted as evolutionary drivers of parental care. The most consistent evidence supports a role for natural enemies such as predators, microbes and cannibalistic conspecifics. Also, the importance of ecological factors may interact with the life history (parity) of a species, either as a pre‐adaptation facilitating the evolution of parental care or as a consequence of enhanced parental investment under parental care. Yet, only limited experimental research has been carried out to test the combined influence of ecology and life history in the evolution of parental care. Several forms of care can mediate the transition from solitary to family living, which entails the emergence of a novel – social – environment that generates new selection pressures from interactions within and between families. In this context, we review examples of studies on communal breeding, brood parasitism, parent–offspring conflict and co‐adaptation, and discuss how these social interactions may in turn be influenced by ecological factors such as food availability or population density. Insects are uniquely suitable for experimental and comparative research on the complex interplay between ecology, life history, and the social environment.

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Volatiles Emitted by Calling Males of Burying Beetles and Ptomascopus morio (Coleoptera: Silphidae: Nicrophorinae) Are Biogenetically Related

et al. 2017

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In burying beetles, Nicrophorus spp. (Coleoptera: Silphidae: Nicrophorinae) mate finding is mediated by male produced volatile compounds. To date, pheromone components of only two species have been identified. In an attempt to better understand the evolution of male pheromone signaling in burying beetles, we investigated the male released volatiles of ten Nicrophorus species and one closely related nicrophorine species, Ptomascopus mori. Volatiles emitted by calling males were collected in the laboratory by means of solid phase micro extraction and analyzed using gas chromatography coupled with mass spectrometry. Identified volatiles included short chain esters of 4-methylcarboxylic acids, terpenoids, and some other aliphatic compounds. The long-range volatile signals of the burying beetle species included in this study are blends of two to seven components. We found that methyl or ethyl esters of 4-methylheptanoic acid and 4-methyloctanoic acid are produced by eight of the ten investigated Nicrophorus species. These esters may play a key role in chemical communication. Their widespread occurrence suggests that these compounds did not evolve recently, but appeared relatively early in the phylogeny of the genus. Although Ptomascopus is considered the sister genus of Nicrophorus, P. morio males do not produce any of the Nicrophorus compounds, but release 3-methylalkan-2-ones, which are absent in Nicrophorus. A better understanding of the evolution of burying beetle pheromones, however, will only be possible once more species have been studied.

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Number and size of clutch in Ptomascopus morio (Coleoptera: Silphidae: Nicrophorinae), with comparisons to Nicrophorus

Cited by 6 publications

References 22 publications

The effect of pioneer carrion beetles on the emission of volatile organic compounds and carrion insect community assembly

The effect of pioneer carrion beetles on the emission of volatile organic compounds and carrion insect community assembly

The evolution of parental care in insects: the roles of ecology, life history and the social environment

Volatiles Emitted by Calling Males of Burying Beetles and Ptomascopus morio (Coleoptera: Silphidae: Nicrophorinae) Are Biogenetically Related

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