The social wasp Vespula germanica (Fabricius) (Hymenoptera: Vespidae) population dynamics in England over 39 years.

2018 ◽  
Vol 154 (2) ◽  
pp. 149-155
Author(s):  
Michael Archer
Keyword(s):  
Population Dynamics ◽  
Population Dynamic ◽  
Ecological Factors ◽  
Social Wasp ◽  
Data Sets ◽  
Data Set ◽  
Vespula Germanica ◽  
The Social ◽  
Minimum Number ◽  
Suction Traps

1. Yearly records of worker Vespula germanica (Fabricius) taken in suction traps at Silwood Park (28 years) and at Rothamsted Research (39 years) are examined. 2. Using the autocorrelation function (ACF), a significant negative 1-year lag followed by a lesser non-significant positive 2-year lag was found in all, or parts of, each data set, indicating an underlying population dynamic of a 2-year cycle with a damped waveform. 3. The minimum number of years before the 2-year cycle with damped waveform was shown varied between 17 and 26, or was not found in some data sets. 4. Ecological factors delaying or preventing the occurrence of the 2-year cycle are considered.

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

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Maité Masciocchi ◽  
Bárbara Angeletti ◽  
Juan C. Corley ◽  
Andrés S. Martínez
Keyword(s):  
Social Wasp ◽  
Aggregation Behavior ◽  
Vespula Germanica ◽  
The Social

A simple model for ferret population dynamics and control in semi-arid New Zealand habitats

2001 ◽  
Vol 28 (1) ◽  
pp. 87 ◽  
Author(s):  
N. D. Barlow ◽  
G. L. Norbury
Keyword(s):  
Population Dynamics ◽  
New Zealand ◽  
Current Density ◽  
Average Density ◽  
Intrinsic Rate Of Increase ◽  
Data Sets ◽  
Data Set ◽  
Rate Of Increase ◽  
Semi Arid ◽  
Over Time

Introduced ferrets (Mustela furo) in New Zealand are subject to population control to reduce their threat to native fauna and the incidence of bovine tuberculosis (Tb) in livestock. To help in evaluating control options and to contribute to a multi-species model for Tb dynamics, a simple Ricker model was developed for ferret population dynamics in a semi-arid environment. The model was based on two data sets and suggested an intrinsic rate of increase for ferrets of 1.0–1.3 year–1 and a carrying capacity of 0.5–2.9 km–2. There was evidence for direct density-dependence in both data sets and the effect appeared to act mainly on recruitment. Dependence of the rate of increase of predators on the density of wild rabbits (Oryctolagus cuniculus) was exhibited in one of the two data sets, together with a numerical response relating current density of predators asymptotically to current density of rabbits, their primary prey. Predators in this data set included both cats and ferrets, estimated from spotlight counts, but the other data set demonstrated a direct proportionality between predator (cat and ferret) spotlight counts and minimum ferrets known to be alive by trapping. The model suggested, firstly, that populations are hard to suppress by continuous culling, with at least a 50% removal per year necessary to effect a suppression of 50% in long-term average density. Secondly, if control is episodic rather than continuous, culling in autumn gives a greater degree of suppression over time (280%, accumulated over time) than culling in spring (180%). A differential equation version of the model provides a component for a general Anderson/May bovine Tb/wildlife (possum/deer/ferret) model.

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

2020 ◽  
pp. 1-8
Author(s):  
Andrés S. Martínez ◽  
Natalia Rousselot ◽  
Juan C. Corley ◽  
Maité Masciocchi
Keyword(s):  
Sex Determination ◽  
Social Wasp ◽  
Negative Effects ◽  
Vespula Germanica ◽  
Temporal Segregation ◽  
Complementary Sex Determination ◽  
The Social ◽  
Opposite Sex ◽  
Determination System ◽  
Sex Determination System

Abstract 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.

Field preferences of the Social Wasp Vespula germanica (Hymenoptera: Vespidae) for Protein-rich Baits

2013 ◽  
Vol 26 (5) ◽  
pp. 730-739 ◽  
Author(s):  
Ana Julia Pereira ◽  
Maité Masciocchi ◽  
Octavio Bruzzone ◽  
Juan C. Corley
Keyword(s):  
Social Wasp ◽  
Vespula Germanica ◽  
The Social ◽  
Protein Rich

scholarly journals The Social Wasp Fauna and Biology of Khorezm Region (Hymenoptera, Vespidae: Vespinae, Polistinae)

2019 ◽  
Vol 12 (1) ◽  
pp. 14
Author(s):  
Ulmasbek R. Abdullaev ◽  
Ikram I. Abdullaev ◽  
Oygul O. Masharipova
Keyword(s):  
Species Composition ◽  
Social Wasp ◽  
Composition Distribution ◽  
Vespa Orientalis ◽  
Vespula Germanica ◽  
The Social ◽  
First Time

For the first time in Uzbekistan, there was a research on four species of Poleses dominula (Christ, 1791) and Polistes wattiim (Cameron, 1900), Vespula germanica (Fabricius, 1793), Vespa orientalis (Linnaeus, 1771) in Vespinae, Polistinae 2 subspecies of Vespidae family in Khorezm region species composition, distribution and their biology.

The Distribution of the European or German Wasp, Vespula-Germanica (F) (Hymenoptera, Vespidae), in Australia - Past, Present and Future

1992 ◽  
Vol 40 (5) ◽  
pp. 495 ◽  
Author(s):  
JP Spradbery ◽  
GF Maywald
Keyword(s):  
Social Wasp ◽  
Environmental Damage ◽  
Climate Matching ◽  
Northern India ◽  
Vespula Germanica ◽  
South Wales ◽  
The Social ◽  
And Control ◽  
North And South America ◽  
North And South

The social wasp Vespula germanica (F.) occurs throughout Europe south of latitude 62-degrees-N. Its native distribution extends into northern Africa, the Middle East, northern India, China and Korea. It has been accidentally introduced into several regions, including North and South America, and South Africa. It has also been introduced to Australasia, where it became established in Tasmania in 1959 and at several Australian mainland localities during 1977-78. It is now widespread throughout Victoria, in much of southern and coastal New South Wales, and in some suburbs of Adelaide and Per-th. One nest has been recorded in Maryborough, Queensland. The observed global distribution is used here to determine the potential distribution and relative abundance of V. germanica in Australia using the climate-matching computer program CLIMEX. The results indicate that this pestiferous wasp could potentially colonise most of the eastern seaboard of Australia north to Rockhampton, Queensland. V. germanica is likely to adversely affect human activities, with accompanying environmental damage as it inevitably spreads and consolidates, and prospects for containment and control appear minimal.

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