ESTABLISHMENT AND SPREAD OFVESPULA GERMANICA(F.) (HYMENOPTERA: VESPIDAE) IN NEW SOUTH WALES AND THE INFLUENCE OF RAINFALL ON ITS ABUNDANCE

Horwood, M. A.; Toffolon, R. B.; Brown, G. R.

doi:10.1111/j.1440-6055.1993.tb00581.x

Cited by 14 publications

(14 citation statements)

References 6 publications

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“…Thus, bottlenecks may accompany the invasion of new habitats, resulting in strong genetic drift and, consequently, in genetic differentiation among populations (Chakraborty & Nei 1977). This founder effect may be further exacerbated by the frequent, but largely unexplained, yearly fluctuations in the size of V. germanica populations (Archer 1980; Horwood et al . 1993; Harris & Beggs 1995).…”

Section: Discussionmentioning

confidence: 99%

Hierarchical genetic structure of the introduced wasp Vespula germanica in Australia

2001

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The wasp Vespula germanica is a highly successful invasive pest. This study examined the population genetic structure of V. germanica in its introduced range in Australia. We sampled 1320 workers and 376 males from 141 nests obtained from three widely separated geographical areas on the Australian mainland and one on the island of Tasmania. The genotypes of all wasps were assayed at three polymorphic DNA microsatellite markers. Our analyses uncovered significant allelic differentiation among all four V. germanica populations. Pairwise estimates of genetic divergence between populations agreed with the results of a model-based clustering algorithm which indicated that the Tasmanian population was particularly distinct from the other populations. Within-population analyses revealed that genetic similarity declined with spatial distance, indicating that wasps from nests separated by more than approximately 25 km belonged to separate mating pools. We suggest that the observed genetic patterns resulted from frequent bottlenecks experienced by the V. germanica populations during their colonization of Australia.

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Section: Discussionmentioning

confidence: 99%

Hierarchical genetic structure of the introduced wasp Vespula germanica in Australia

2001

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“…(Fig 1A), while Australian data was obtained from Spradbery & Maywald [37], Horwood et al [40], Philip Spradbery (pers comm.) and Marc Widmer (pers comm.)…”

Section: Methodsmentioning

confidence: 99%

“…Distribution data for Argentina was obtained from Masciocchi & Corley [ 32 ] and Maitè Maschiocchi (pers comm.) ( Fig 1A ), while Australian data was obtained from Spradbery & Maywald [ 37 ], Horwood et al [ 40 ], Philip Spradbery (pers comm.) and Marc Widmer (pers comm.)…”

Section: Methodsmentioning

confidence: 99%

Including irrigation in niche modelling of the invasive wasp Vespula germanica (Fabricius) improves model fit to predict potential for further spread

2017

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The European wasp, Vespula germanica (Fabricius) (Hymenoptera: Vespidae), is of Palaearctic origin, being native to Europe, northern Africa and Asia, and introduced into North America, Chile, Argentina, Iceland, Ascension Island, South Africa, Australia and New Zealand. Due to its polyphagous nature and scavenging behaviour, V. germanica threatens agriculture and silviculture, and negatively affects biodiversity, while its aggressive nature and venomous sting pose a health risk to humans. In areas with warmer winters and longer summers, queens and workers can survive the winter months, leading to the build-up of large nests during the following season; thereby increasing the risk posed by this species. To prevent or prepare for such unwanted impacts it is important to know where the wasp may be able to establish, either through natural spread or through introduction as a result of human transport. Distribution data from Argentina and Australia, and seasonal phenology data from Argentina were used to determine the potential distribution of V. germanica using CLIMEX modelling. In contrast to previous models, the influence of irrigation on its distribution was also investigated. Under a natural rainfall scenario, the model showed similarities to previous models. When irrigation is applied, dry stress is alleviated, leading to larger areas modelled climatically suitable compared with previous models, which provided a better fit with the actual distribution of the species. The main areas at risk of invasion by V. germanica include western USA, Mexico, small areas in Central America and in the north-western region of South America, eastern Brazil, western Russia, north-western China, Japan, the Mediterranean coastal regions of North Africa, and parts of southern and eastern Africa.

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“…(Figure 2), and this might be due to its importance in wasps metabolism (water and nectar), maintenance of nest temperature (water), and nest construction (water). Water is a limiting factor for the development of wasps [43]. On the other hand, nectar is extremely important in adults' diet, and several authors pointed out that it is the most collected material in different periods in the year [17,19,20,29,30,33,44].…”

Section: Environmental Factorsmentioning

confidence: 99%

Environmental Factors Influencing Foraging Activity in the Social WaspPolybia paulista(Hymenoptera: Vespidae: Epiponini)

Canevazzi

Noll

2011

Psyche: A Journal of Entomology

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Foraging behavior in social wasps is important in the development of the colony and reflects an important ecological interaction between the colony and the environment. Although the social traits of the colony play a role in the foraging activities, the conditions that establish the space and time limits are mainly physical. Here, we evaluate colonies of Polybia paulista throughout one year in order to verify the foraging activities and the items collected, as well as the importance of temperature, relative humidity, and solar radiation on motivating foraging. Collection of liquids was always higher than that of solids; preys were collected all year long, and nests showed two annual episodic expansions. The linear mixed effects (LME) model used to analyze which weather factors influence the foraging showed temperature as the most influencing factor on the collection of materials.

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ESTABLISHMENT AND SPREAD OFVESPULA GERMANICA(F.) (HYMENOPTERA: VESPIDAE) IN NEW SOUTH WALES AND THE INFLUENCE OF RAINFALL ON ITS ABUNDANCE

Cited by 14 publications

References 6 publications

Hierarchical genetic structure of the introduced wasp Vespula germanica in Australia

Hierarchical genetic structure of the introduced wasp Vespula germanica in Australia

Including irrigation in niche modelling of the invasive wasp Vespula germanica (Fabricius) improves model fit to predict potential for further spread

Environmental Factors Influencing Foraging Activity in the Social WaspPolybia paulista(Hymenoptera: Vespidae: Epiponini)

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