Historical Review of Bruchid Studies in Japan

Yoshida, Toshiharu

doi:10.1007/978-94-009-2005-7_1

Cited by 7 publications

(6 citation statements)

References 90 publications

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“…In the second experiment, females avoided laying eggs on beans with conspecific eggs (Fig. 4a), which confirms previous studies (e.g., Utida 1941;Yoshida et al 1990). In stark contrast, however, when females are provided with clean glass beads with and without conspecific eggs, they preferred to add their eggs onto the beads with eggs (Fig.…”

Section: Discussionsupporting

confidence: 89%

“…The chemical basis of attractive conspecific cues, as well as the information acquired from the resources themselves, is left for future study. Because C. chinensis is a pest species, chemical egg-laying deterrents left by conspecific females have already been identified (Oshima et al 1973;Yamamoto 1990) and constitute a mixture of fatty acids, hydrocarbons and triglycerides secreted from their bodies. Of particular interest is whether these same chemicals would function as an attractant for egg-laying if they were put onto unattractive substrates.…”

Section: Discussionmentioning

confidence: 99%

“…Adult females lay eggs on the surface of host beans or bean pods, and hatched larvae burrow into the bean in which they complete their development into adults. Adult C. chinensis can reproduce without any food supply, which makes this species an ideal model organism in laboratory studies of population and behavioral ecology (Yoshida 1990). We established a new laboratory strain (fkC16) of C. chinensis from at least 10 individuals (including adults and eggs) collected at the farm field of Kyoto University (N35.031294°, E135.787047°) in October 2016.…”

Section: Insectsmentioning

confidence: 99%

“…Because the larvae do not move to other beans, the amount of larval food is predetermined by the decision-making of their mothers. The females avoid laying eggs on beans when there are already conspecific eggs covered with scent-marking chemicals (Oshima et al 1973;Utida 1941;Yamamoto 1990). In addition, their egg-laying decision is based on the odour (D-Catechin, Ueno et al 1990) and curvature (Avidov et al 1965;Ishii 1951) of the potential substrate.…”

Section: Introductionmentioning

confidence: 99%

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Copy if dissatisfied, innovate if not: contrasting egg-laying decision making in an insect

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Dobata

2018

Anim Cogn

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The use of conspecific cues as social information in decision making is widespread among animals; but, because this social information is indirect, it is error-prone. During resource acquisition, conspecific cues also indicate the presence of competitors; therefore, decision makers are expected to utilize direct information from resources and modify their responses to social information accordingly. Here, we show that, in a non-social insect, unattractive egg-laying resources alter the behavioural response to conspecific cues from avoidance to preference, leading to resource sharing. Females of the adzuki bean beetle Callosobruchus chinensis avoid laying eggs onto beans that already have conspecific eggs. However, when we provided females with bean-sized clean glass beads with and without conspecific eggs, the females preferred to add their eggs onto the beads with eggs. The glass beads, once coated with water extracts of adzuki beans, enabled the females to behave as if they were provided with the beans: the females preferred bean-odoured glass beads to clean glass beads and they avoided the substrates with eggs. When females are provided with unattractive egg-laying substrates only, joining behaviour (i.e. copying) might be advantageous, as it takes advantage of information about positive attributes of the substrate that the focal animal might have missed. Our results suggest that given only unsatisfactory options, the benefits of copying outweigh the costs of resource competition. Our study highlights the importance of integrating multiple information sources in animal decision making.

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Section: Discussionsupporting

confidence: 89%

Section: Discussionmentioning

confidence: 99%

Section: Insectsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Copy if dissatisfied, innovate if not: contrasting egg-laying decision making in an insect

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Dobata

2018

Anim Cogn

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“…The ability to use dry beans as a food resource is widespread in this family. In Bruchinae, a derived group within the Bruchidae, many nonpest species do exhibit the ability to use dry seeds (Watanabe 1985; Shimada 1988; Tuda et al ., unpublished) and these may be pre‐adapted to becoming pests of stored beans (Watanabe 1985; Shimada 1990; Yoshida 1990).…”

Section: Introductionmentioning

confidence: 99%

Evolutionary diversification of the bean beetle genus Callosobruchus (Coleoptera: Bruchidae): traits associated with stored‐product pest status

et al. 2006

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Despite the fact that many plant-feeding insects are pests, little effort has been made to identify key evolutionary trait transitions that allow taxa to acquire or lose pest status. A large proportion of species in the genus Callosobruchus are economically important pests of stored, dry postharvest beans of the tribe Phaseoleae. However, the evolution of this feeding habit is poorly understood. Here, we present a reconstruction of the phylogeny of the Asian and African Callosobruchus based on three mitochondrial genes, and assess which traits have been associated with the evolutionary origin or loss of ability to reproduce on dry beans. Our phylogenetic analysis showed that species group into the chinensis and the maculatus clades, which are also supported by genital morphology, and an additional paraphyletic group. Ancestral ability to use dry beans has been lost in the chinensis clade but acquired again in C. chinensis. Dry-bean use and host-plant use were both phylogenetically constrained and transitions in the two were significantly correlated. Host shifts from the subtribe Phaseolinae to Cajaninae were more common than the reverse and were more likely in species using young beans. The ability to use dry beans was more likely gained when using Phaseolinae hosts and promoted habitat shifts from tropical to temperate regions. Adaptation to arid climate was also associated with the ability to reproduce on dry beans and on Phaseolinae. Thus, our analysis suggests that physiological adaptations to an arid climate and to Phaseolinae hosts both render beetles predisposed to become pests of cultivated beans.

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Field infestation of pigeonpea (Cajanus cajan (L.) Millsp.) by Callosobruchus chinensis (L.) in Uganda

Nahdy

Ellis

Silim³

et al. 1998

Journal of Stored Products Research

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Historical Review of Bruchid Studies in Japan

Cited by 7 publications

References 90 publications

Copy if dissatisfied, innovate if not: contrasting egg-laying decision making in an insect

Copy if dissatisfied, innovate if not: contrasting egg-laying decision making in an insect

Evolutionary diversification of the bean beetle genus Callosobruchus (Coleoptera: Bruchidae): traits associated with stored‐product pest status

Field infestation of pigeonpea (Cajanus cajan (L.) Millsp.) by Callosobruchus chinensis (L.) in Uganda

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