Managing nuisance social insects in urban environments: an overview

Dimarco, Romina D.; Masciocchi, Maité; Corley, Juan C.

doi:10.1080/09670874.2017.1329566

Cited by 5 publications

(2 citation statements)

References 148 publications

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“…Despite its pest status, the tools available for population management are still limited. Currently, the toxic baits aimed at workers and manual destruction of nests are the main strategies used worldwide (Dimarco et al ., 2017; Lester and Beggs, 2019).…”

Section: Introductionmentioning

confidence: 99%

Nest-departure behaviour of gynes and drones in the invasive yellowjacket Vespula germanica (Hymenoptera: Vespidae)

Martínez

Rousselot

Corley

et al. 2020

Bull. Entomol. Res.

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Inbreeding costs can be high in haplodiploid hymenopterans due to their particular mechanism of sex determination (i.e., single-locus complementary sex-determination system, sl-CSD), as it can lead to the production of sterile males. Therefore, mechanisms contributing to reduced inbred matings can be beneficial. In this sense, asynchronous nest departure of sibling drones and gynes could reduce kin encounters in social hymenopterans. Using six observation colonies, we determined under field conditions the nest departure behaviour of sibling reproductives of the social wasp Vespula germanica (Hymenoptera: Vespidae). We determined that sexuals leave the nests definitively and detected asynchronous departure not fixed to a particular caste at a seasonal scale in some colonies, as gynes or drones delayed their departure as a function of the departure of the opposite sex, depending on the colony. At a higher temporal resolution (i.e., within a day), we discovered that drones consistently began to leave nests 1 h before gynes and this difference was driven by those individuals that left on the same day as did the opposite-sex kin. Even though other mechanisms such as polyandry and differential dispersal could also be important at reducing inbred matings in the species, the observed departure patterns (i.e., in some colonies actually leave together with the opposite caste, while in others temporal segregation seems to occur) from nests could be complementary to the former and be important at reducing the negative effects of inbreeding in this invasive species.

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Section: Introductionmentioning

confidence: 99%

Nest-departure behaviour of gynes and drones in the invasive yellowjacket Vespula germanica (Hymenoptera: Vespidae)

Martínez

Rousselot

Corley

et al. 2020

Bull. Entomol. Res.

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“…After this, drones die and reproductive females hibernate. The negative impact that V. germanica has on different productive and urban activities is significant, and despite being a pest in many parts of the world, the available management strategies are limited and therefore success is often limited 24 . Currently, toxic baits targeted at workers and mechanical destruction of nests are the main strategies used to control invasive populations 21 .…”

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confidence: 99%

Drone aggregation behavior in the social wasp Vespula germanica (Hymenoptera: Vespidae): Effect of kinship and density

Masciocchi

Angeletti

Corley

et al. 2020

Sci Rep

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Inbreeding can have negative consequences on population viability because of the reduced fitness of the progeny. in general, most species have developed mechanisms to minimize inbreeding such as dispersal and kin avoidance behavior. in the eusocial Hymenoptera, related individuals typically share a common nest and have relatively short mating periods, this could lead to inbreeding, and because of their single-locus complementary sex determination system, it may generate diploid males that could result in infertile triploid progeny representing a cost for the colony. Vespula germanica, is an eusocial wasp that has invaded many parts of the world, despite likely facing a reduced genetic pool during the arrival phases. We ask whether male wasp display specific aggregation behavior that favors genetic diversity, key to reduce inbreeding. Through a set of laboratory experiments, we investigated the effects of drone nestmateship and density on the aggregation behavior of V. germanica drones. We show that drones avoid aggregating with their nestmates at all densities while non-nestmates are avoided only at high densities. this suggests that lek genetic diversity and density could be regulated through drone behavior and in the long run minimize inbreeding favoring invasion success.Inbreeding (i.e., mating with genetically close relatives) can have negative consequences on population viability because of the effects on the fitness of the progeny. Although some species can tolerate and even favor inbreeding, many other tend to avoid it because inbred mating can increase homozygosity and the expression of deleterious alleles which in the long term, increases the population´s susceptibility to fast changing environments 1,2 . In the Hymenoptera, inbreeding may lead to the additional costs associated with the single-locus complementary sex determination system. This is because heterozygous individuals at the sex-determining locus develop into diploid females and hemizygotes develop into haploid males, but when inbred mating occur, males could develop into inviable sterile diploid individuals 3 . It´s important to note that even though diploid males can develop by chance under outbreeding conditions or due to the presence of a more prevalent allele in the population, inbred mating increase the frequency of diploid males 4 . These diploid males may give rise to infertile triploid broods, at a fitness cost for the colony, at the expense of workers and queens 5-7 . In eusocial insects (individuals that live in a colony with only some individuals capable of reproducing), related individuals share a common nest and have relatively short mating periods, thus can potentially suffer from increased probabilities of encounters with relatives, since densities of reproductives may be high near the nests 2,3,8 .Because of the negative impacts of inbreeding, many species have evolved ways to prevent or reduce it 9,10 . Such mechanisms, can occur before or after copulation, and include among others, spatial and temporal segregation of opposi...

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