Delay, avoidance and protection in oviposition behaviour in response to fine-scale variation in egg parasitism risk

Deas, Joseph B.; Hunter, Martha S.

doi:10.1016/j.anbehav.2013.08.010

Cited by 13 publications

(11 citation statements)

References 62 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…When more time limited, the stacking response is stronger in older females than in younger females. Additionally, we have evidence that prior to stacking eggs, females may decrease oviposition rate and avoid laying on seed pods with parasitized eggs (Deas & Hunter, 2013). The results of that study also suggested that M. amicus is very sensitive to cues indicating parasitism risk; stacks accounted for approximately 25% of ovipositions by 4 h and 60% of ovipositions by 48 h, in response to the presence of parasitized eggs (Deas & Hunter, 2013).…”

Section: Reproductive Costs Associated With Synovigenymentioning

confidence: 63%

“…Female beetles do not generally protect their eggs in the absence of parasitism cues. However, females do protect eggs in the presence of adult parasitoids and parasitized eggs, or parasitized eggs alone (Deas & Hunter, 2013). Although we have not identified the mechanism of the detection of parasitism cues by female beetles, we think they may be exploiting host discrimination cues left behind by parasitoid females.…”

Section: Study Systemmentioning

confidence: 71%

“…Additionally, we have evidence that prior to stacking eggs, females may decrease oviposition rate and avoid laying on seed pods with parasitized eggs (Deas & Hunter, 2013). The results of that study also suggested that M. amicus is very sensitive to cues indicating parasitism risk; stacks accounted for approximately 25% of ovipositions by 4 h and 60% of ovipositions by 48 h, in response to the presence of parasitized eggs (Deas & Hunter, 2013). Taken together, our results suggest that beetles' perceptions of host abundance, quality and nat-ural enemy cues all interact to produce complex patterns of oviposition behaviour.…”

Section: Reproductive Costs Associated With Synovigenymentioning

confidence: 93%

See 2 more Smart Citations

Egg and time limitation mediate an egg protection strategy

Deas

Hunter

2014

J of Evolutionary Biology

View full text Add to dashboard Cite

The number of mature eggs remaining in the ovaries and the time left for oviposition determine the reproductive decisions of the hyperdiverse guild of insects that require discrete and potentially limiting resources for oviposition (such as seeds, fruits or other insects). A female may run out of eggs before all available oviposition sites are used (egg limitation), or die before using all of her eggs (time limitation). Females are predicted to change clutch size depending on whether eggs or time is the limiting resource. We extend this framework and ask whether the same constraints influence a strategy in which females modify eggs into protective shields. In response to egg parasitism cues, female seed beetles (Mimosestes amicus) lay eggs in vertical groups of 2-4, modifying the top 1-3 eggs into shields in order to protect the bottom egg from attack by parasitoids. We made contrasting predictions of how egg and time limitation would influence egg size and the incidence and level of egg protection. By varying access to seed pods, we manipulated the number of remaining eggs a female had at the time she received a parasitism cue. Although egg size was not affected, our results confirm that egg-limited females protected fewer eggs and time-limited females protected more eggs. Female body size explained the number of eggs in a stack rather than host deprivation or the timing of parasitoid exposure. Our results clearly show that host availability relative to female age influences the incidence of egg protection in M. amicus. Furthermore, our study represents a novel use of life history theory to explain patterns in an unusual but compelling defensive behaviour.

show abstract

Section: Reproductive Costs Associated With Synovigenymentioning

confidence: 63%

Section: Study Systemmentioning

confidence: 71%

Section: Reproductive Costs Associated With Synovigenymentioning

confidence: 93%

See 1 more Smart Citation

Egg and time limitation mediate an egg protection strategy

Deas

Hunter

2014

J of Evolutionary Biology

View full text Add to dashboard Cite

show abstract

“…Behavioural shifts are a commonly studied trait responses in arthropods, and are generally the most rapid and reversible. Examples include changes in time spent feeding (Thaler and Griffin, 2008;Jandricic et al, 2016;Ingerslew and Finke, 2017), food source (Schmitz et al, 1997), microhabitat and refuge use (Lucas et al, 2000;Lawson-Balagbo et al, 2007;Penfold et al, 2017), oviposition rate (Deas and Hunter, 2013;Hermann and Thaler, 2018), oviposition site selection (Angelon and Petranka, 2002;Vonesh and Blaustein, 2010;Silberbush and Blaustein, 2011), short-distance escape (Tamaki et al, 1970;Nelson, 2007;Fill et al, 2012) and dispersal (H€ oller et al, 1994;Henry et al, 2010;Welch and Harwood, 2014;Otsuki and Yano, 2014b).…”

Section: Enemy-risk Effects and The Evaluation Of Biological Control mentioning

confidence: 99%

Bugs scaring bugs: enemy‐risk effects in biological control systems

2020

View full text Add to dashboard Cite

Enemy‐risk effects, often referred to as non‐consumptive effects (NCEs), are an important feature of predator–prey ecology, but their significance has had little impact on the conceptual underpinning or practice of biological control. We provide an overview of enemy‐risk effects in predator–prey interactions, discuss ways in which risk effects may impact biocontrol programs and suggest avenues for further integration of natural enemy ecology and integrated pest management. Enemy‐risk effects can have important influences on different stages of biological control programs, including natural enemy selection, efficacy testing and quantification of non‐target impacts. Enemy‐risk effects can also shape the interactions of biological control with other pest management practices. Biocontrol systems also provide community ecologists with some of the richest examples of behaviourally mediated trophic cascades and demonstrations of how enemy‐risk effects play out among species with no shared evolutionary history, important topics for invasion biology and conservation. We conclude that the longstanding use of ecological theory by biocontrol practitioners should be expanded to incorporate enemy‐risk effects, and that community ecologists will find many opportunities to study enemy‐risk effects in biocontrol settings.

show abstract

“…As a result, ovipositing females of these two species utilize both habitat types; however, their habitat use likely varies depending on parasitoid pressure (see also Diamond & Kingsolver 2010). Parasitism cues affect the oviposition strategy of seed beetles Mimosestes amicus; if the distribution of parasitized eggs is relatively high, seed beetles will either stack eggs (reducing parasitism for eggs near the bottom of the stack) or avoid ovipositing altogether, suggesting that insects can effectively shift their oviposition behaviour based on environmental cues (Deas & Hunter 2013).…”

Section: Female Oviposition Preference and Larval Performancementioning

confidence: 99%

Preference and performance of Hypena opulenta on Vincetoxicum rossicum foliage from sun versus shade habitats

Rochette¹

View full text Add to dashboard Cite

Characteristics of individual plants from the same species can differ significantly between habitats based on abiotic factors such as light intensity and temperature. In turn, these differences in plant quality can affect herbivores that feed on the plant. Here, we examined the effects of habitat on leaf characteristics for the invasive vine Vincetoxicum rossicum, as well as the preference and performance of its biological control agent, Hypena opulenta, on sun versus shade foliage. V. rossicum leaves grown in sunny habitats were tougher, thicker, and had lower water content than shade leaves. H. opulenta larvae consumed greater amounts of shaded foliage than sun foliage and were predominately night-active. H. opulenta larval development did not differ between sun and shade foliage diets; however, females preferred to oviposit on sun foliage. The underlying mechanisms of these results are discussed, as well as their implications for the biological control of Vincetoxicum species.iii

show abstract

Delay, avoidance and protection in oviposition behaviour in response to fine-scale variation in egg parasitism risk

Cited by 13 publications

References 62 publications

Egg and time limitation mediate an egg protection strategy

Egg and time limitation mediate an egg protection strategy

Bugs scaring bugs: enemy‐risk effects in biological control systems

Preference and performance of Hypena opulenta on Vincetoxicum rossicum foliage from sun versus shade habitats

Contact Info

Product

Resources

About