Should aphidophagous ladybirds be reluctant to lay eggs in the presence of unsuitable prey?

Fréchette, Bruno; Dixon, A. F. G.; Alauzet, Claude; Boughenou, Naïma; Hemptinne, Jean‐Louis

doi:10.1111/j.1570-7458.2006.00366.x

Cited by 21 publications

(20 citation statements)

References 36 publications

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“…response to pine volatiles in Anatis ocellata: Kesten, 1969); however, strict discrimination of different aphid species is not really necessary. It is noteworthy that studies centred on prey chemical dietary suitability have provided ambiguous and contradictory evidence for any preference-performance link (Blackman, 1967b;Omkar & Mishra, 2005;Fréchette et al, 2006).…”

Section: Discussionmentioning

confidence: 99%

Weighty matters: Body size, diet and specialization in aphidophagous ladybird beetles (Coleoptera: Coccinellidae)

Sloggett¹

2008

Eur. J. Entomol.

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Abstract. Aphidophagous ladybirds exhibit a broad range of body sizes. Until now this has been thought to be a function of the different prey densities that they feed at, with smaller ladybirds feeding at lower prey densities. The size of the prey species they feed on has been considered to have no relationship with ladybird body size. However, these arguments possess a limited capacity to explain observed data from the field. I here demonstrate a more realistic, complex approach incorporating both prey density and the size of prey species. Small ladybirds can feed on small aphids at both low and high densities. However when the aphid species is large they cannot catch the older, bigger, more energy-rich aphid instars due to their small size. They are thus unable to feed on large aphid prey at low densities, although at higher densities numbers of the smaller instars may be sufficient to sustain them. By contrast large ladybirds can feed on large aphids at both low and high densities due to their superior ability to catch the bigger, more energyrich older aphids; however they cannot be sustained by low densities of small aphids due to food limitation consequent on their large size. This more complex association between ladybird size, prey size and prey density possesses a better explanatory power for earlier field data. Because of this relationship, ladybird body size also provides an important trade-off determining dietary breadth and specialization in the aphidophagous Coccinellidae. Dietary specialists more closely match the size of their limited prey species, have higher overall capture efficiencies and can thus continue to reproduce at lower aphid densities for longer. By contrast dietary generalists adopt a one-size-fits-all strategy, are medium-sized and have lower capture efficiencies of individual prey species, thus requiring higher aphid densities. The role of body-size in dietary specialization is supported by data from the British fauna. Rather than trade-offs related to prey chemistry, which have hitherto been the centre of attention, body size trade-offs are the likely most important universal factor underlying dietary specialization in aphidophagous coccinellids.

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Section: Discussionmentioning

confidence: 99%

Weighty matters: Body size, diet and specialization in aphidophagous ladybird beetles (Coleoptera: Coccinellidae)

Sloggett¹

2008

Eur. J. Entomol.

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“…When fed on this prey, all adults died within a week of emergence. Frechette et al ( 2006 ;Table 5.16 ) have more recently confi rmed the toxicity of M. viciae for A. bipunctata . Even the larvae of the polyphagous Har.…”

Section: Aulacorthum Magnoliaementioning

confidence: 99%

“…16 Number of eggs laid by A dalia bipunctata females that oviposited after 8 and 24 hours, and the percentage of mortality after 24 hours in the presence of three aphid species, A cyrthosiphon pisum , A phis fabae and M egoura viciae (modifi ed afterFrechette et al 2006 ) .…”

mentioning

confidence: 99%

Food Relationships

Hodek

Evans

2012

Ecology and Behaviour of the Ladybird Beetles (Coccinellidae)

154

129

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“…To enhance offspring fitness, predators should have the ability to distinguish between them and select optimal oviposition sites. For predators that can exploit a range of prey that vary in quality and availability, prior feeding experiences could help them to select oviposition sites with higher prey quality for their offspring (Fréchette et al ., ). Most studies on such behavioral responses in arthropods have focused on phytophagous insects (e.g., Anderson et al ., ; Zhang & Liu, ), which are more likely to oviposit on patches where they have previous feeding experience (Michaud, ; Hu et al ., ), even when the plant was nutritionally inferior for egg production and adult survival in some species (Coyle et al ., ).…”

Section: Introductionmentioning

confidence: 97%

Effects of mummy consumption on fitness and oviposition site selection on Harmonia axyridis

Yu¹,

Feng²,

Feng³

et al. 2019

Insect Science

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Intraguild predation (IGP) has been commonly reported between predators and parasitoids used as biological control agents as predators consuming parasitoids within their hosts. However, the effect of parasitoid–mummy consumption on the fitness of the predator and subsequent oviposition site selection have not been well studied. In our study, we conducted two laboratory experiments to examine the influence of Aphidius gifuensis Ashmead (Hymenoptera: Braconidae) mummies as prey on fitness and subsequently oviposition site selection of Harmonia axyridis (Pallas) (Coleoptera: Coccinellidae). Results indicate that when H. axyridis was reared on A. gifuensis mummies only, its larval development was prolonged, and body weight of the 4th instar larvae and newly emerged adults, and fecundity decreased. Moreover, H. axyridis did not exhibit oviposition preference on plants infested with unparasitized aphids or aphids parasitized for shorter than 9 days. However, compared with plants with mummies (parasitized ≥9 days), H. axyridis laid more eggs on plants with unparasitized aphids. In contrast, H. axyridis previously fed with A. gifuensis mummies did not show a significant oviposition preference between plants with unparasitized aphids and those with mummies (parasitized ≥9 days). Overall, our results suggest that mummy consumption reduced the fitness of H. axyridis. Although H. axyridis avoided laying eggs on plants with A. gifuensis mummies, prior feeding experience on A. gifuensis mummies could alter the oviposition site preference. Thus, in biological control practice, prior feeding experience of H. axyridis should be carefully considered for reduction of IGP and increase of fitness of H. axyridis on A. gifuensis.

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Should aphidophagous ladybirds be reluctant to lay eggs in the presence of unsuitable prey?

Cited by 21 publications

References 36 publications

Weighty matters: Body size, diet and specialization in aphidophagous ladybird beetles (Coleoptera: Coccinellidae)

Weighty matters: Body size, diet and specialization in aphidophagous ladybird beetles (Coleoptera: Coccinellidae)

Food Relationships

Effects of mummy consumption on fitness and oviposition site selection on Harmonia axyridis

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