Introduced Vespa velutina does not replace native Vespa crabro and Vespula species

Alien species invasion could lead to the replacement of native species with similar ecological requirements. Vespa velutina is an invasive hornet recently established in Europe, that is raising concern due to the associated economic and ecological impacts toward managed and wild pollinators besides to the potential competition and replacement of native wasp species. This led to the inclusion of V. velutina in the European list of Invasive Alien Species of Union concern. Nevertheless, V. velutina impacts on the native wasp community is poorly understood. We analysed the influence of V. velutina abundance on the European hornet Vespa crabro in a four-year invaded area in Italy. Moreover, we assessed the impacts of its presence on V. crabro, Vespula vulgaris and Vespula germanica, by comparing the invaded area with an uninvaded one. A Bayesian Generalized Linear Model, implemented to control some relevant environmental confounders, indicate that the relationship between Vespa species was positive at low abundances, while for high values of V. velutina the two species did not covary anymore. The distribution of V. crabro, V. vulgaris and V. germanica showed a considerable overlap between the invaded and uninvaded areas. Overall, the results bring to the conclusion that native Vespidae have probably avoided or minimised a competition pressure, and therefore the presence of V. velutina has not led to an evident replacement of V. crabro and Vespula species. This provides reassurance regarding the conservation status of native European Vespidae following V. velutina invasion.

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Detection and Replication of Moku Virus in Honey Bees and Social Wasps

Viruses ◽

10.3390/v12060607 ◽

2020 ◽

Vol 12 (6) ◽

pp. 607

Author(s):

Andrea Highfield ◽

Jessica Kevill ◽

Gideon Mordecai ◽

Jade Hunt ◽

Summer Henderson ◽

...

Keyword(s):

Honey Bee ◽

Honey Bees ◽

Social Wasp ◽

Vespa Velutina ◽

Vespa Crabro ◽

Vespula Vulgaris ◽

Virus Transfer ◽

Ecological Importance ◽

The Uk ◽

Vespula Pensylvanica

Transmission of honey bee viruses to other insects, and vice versa, has previously been reported and the true ecological importance of this phenomenon is still being realized. Members of the family Vespidae interact with honey bees via predation or through the robbing of brood or honey from colonies, and these activities could result in virus transfer. In this study we screened Vespa velutina and Vespa crabro collected from Europe and China and also honey bees and Vespula vulgaris from the UK for Moku virus (MV), an Iflavirus first discovered in the predatory social wasp Vespula pensylvanica in Hawaii. MV was found in 71% of Vespula vulgaris screened and was also detected in UK Vespa crabro. Only seven percent of Vespa velutina individuals screened were MV-positive and these were exclusively samples from Jersey. Of 69 honey bee colonies screened, 43% tested positive for MV. MV replication was confirmed in Apis mellifera and Vespidae species, being most frequently detected in Vespula vulgaris. MV sequences from the UK were most similar to MV from Vespula pensylvanica compared to MV from Vespa velutina in Belgium. The implications of the transfer of viruses between the Vespidae and honey bees are discussed.

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Different trophic positions among social vespid species revealed by stable isotopes

Royal Society Open Science ◽

10.1098/rsos.210472 ◽

2021 ◽

Vol 8 (5) ◽

pp. 210472

Author(s):

Jyrki Torniainen ◽

Atte Komonen

Keyword(s):

Stable Isotopes ◽

Prey Selection ◽

Social Wasp ◽

Trophic Levels ◽

Generalist Predators ◽

Wasp Species ◽

Vespa Crabro ◽

Vespula Vulgaris ◽

The Social ◽

The Uk

The social vespid wasps are common insect predators and several species behave in unison in the same biotopes. It is commonly accepted that social wasps are mainly opportunistic generalist predators without differences in prey selection and hence they compete for the same food resources. Trophic positions of six vespid wasp species and their potential prey from four sites in Finland and one in the UK were evaluated using carbon and nitrogen stable isotopes (δ 13 C and δ 15 N). The difference in isotope values indicated different trophic positions among species. In general, Dolichovespula spp. showed higher δ 15 N values than Vespula spp., which suggests that Dolichovespula forage on higher trophic levels. Dolichovespula media (Retzius, 1783) showed the highest δ 15 N values, whereas Vespula vulgaris showed the lowest. Dolichovespula media partly expresses apex predator-like δ 15 N values, whereas Vespula species tend to forage on primary consumers. The largest species Vespa crabro (Linnaeus, 1758) showed also similar δ 15 N values as Vespula spp. However, δ 13 C and δ 15 N values of V. vulgaris workers varied slightly during the season. This study offers novel insights about the trophic segregation in the social wasp community, suggesting specialization in diet resource utilization, especially between Dolichovespula and Vespula .

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Hydrocarbon Signatures of the Ectoparasitoid Sphecophaga vesparum Shows Wasp Host Dependency

Insects ◽

10.3390/insects11050268 ◽

2020 ◽

Vol 11 (5) ◽

pp. 268

Author(s):

Cintia Akemi Oi ◽

Robert L. Brown ◽

Ian Stevens ◽

Tom Wenseleers

Keyword(s):

Host Species ◽

Parasitoid Wasp ◽

Hydrocarbon Composition ◽

Chemical Compounds ◽

Wasp Species ◽

Vespula Vulgaris ◽

Vespula Germanica ◽

Main Host ◽

Linear Alkanes ◽

Chemical Profiles

Sphecophaga vesparum often parasitizes nests of vespid wasps such as Vespula vulgaris and Vespula germanica. Inside the colonies, the ectoparasitic larvae feed on the immature forms of the wasps. There are two adult forms of S. vesparum. The large, winged adults emerge from either rigid yellow cocoons or the orange cocoons used for overwintering. The small, brachypterous females emerge from soft, white cocoons. The species is facultative deuterotokous, producing mostly parthenogenic females and infrequently producing males. Here, we describe the production of chemical compounds related to the different developmental forms of the parasitoid S. vesparum (larvae, pupae and adults). We also compare the chemical profiles of the parasitoid wasp adults to those of their two main host species, Vespula vulgaris and Vespula germanica. The results show differences in hydrocarbon composition of larvae, pupae and adults of S. vesparum. Our results also suggest a partial mimicry of each of the two host species, mostly relating to linear alkanes present in both parasitoids and the host vespid wasp species. This matching is likely due to the recycling of the prey’s hydrocarbons, as has been found in other species of parasitoids.

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Social wasp (Hymenoptera: Vespidae) beer trapping in Finland 2008-2012: a German surprise

Entomologica Fennica ◽

10.33338/ef.8983 ◽

2013 ◽

Vol 24 (3) ◽

pp. 156-164 ◽

Cited By ~ 10

Author(s):

Jouni Sorvari

Keyword(s):

Climate Change ◽

Social Wasp ◽

Common Species ◽

Short History ◽

Wasp Species ◽

Vespula Vulgaris ◽

Vespula Germanica ◽

History Of ◽

The Common ◽

Trapping Location

Beer trapping has been carried out annually in the summer in south western Finland (Turku) from 2008 to 2012 inclusive. In 2012, an additional trapping programme was conducted in southern (Helsinki), central (Kuopio) and northern (Kevo) Finland, which also included another trapping location in the south western (Turku) region. The traps were always presented for seven days in each location. While the median wasp Dolichovespula media (Retzius, 1783) was present in all locations, the common wasp Vespula vulgaris Linnaeus, 1758 was found in five out of six locations (20 traps per site). The Kevo individual represents the northernmost record for the median wasp species. The German wasp Vespula germanica (Fabricius, 1793) was surprisingly common in south western and southern Finland. Vespula germanica has a short history of occurrence in Finland and seems to have shifted its range northwards, possibly due to climate change. Some common species of the genus Dolichovespula Rohwer, 1916 were likely underrepresented, because they are not very attracted by beer.

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High predatory efficiency and abundance drive expected ecological impacts of a marine invasive fish

Marine Ecology Progress Series ◽

10.3354/meps13251 ◽

2020 ◽

Vol 637 ◽

pp. 195-208 ◽

Cited By ~ 1

Author(s):

EM DeRoy ◽

R Scott ◽

NE Hussey ◽

HJ MacIsaac

Keyword(s):

Invasive Species ◽

Native Species ◽

Ecological Impact ◽

Marine Species ◽

Ecological Impacts ◽

Negative Effects ◽

Marine Predator ◽

Eastern Gulf Of Mexico ◽

Red Grouper ◽

Per Capita

The ecological impacts of invasive species are highly variable and mediated by many factors, including both habitat and population abundance. Lionfish Pterois volitans are an invasive marine species which have high reported detrimental effects on prey populations, but whose effects relative to native predators are currently unknown for the recently colonized eastern Gulf of Mexico. We used functional response (FR) methodology to assess the ecological impact of lionfish relative to 2 functionally similar native species (red grouper Epinephelus morio and graysby grouper Cephalopholis cruentata) foraging in a heterogeneous environment. We then combined the per capita impact of each species with their field abundance to obtain a Relative Impact Potential (RIP). RIP assesses the broader ecological impact of invasive relative to native predators, the magnitude of which predicts community-level negative effects of invasive species. Lionfish FR and overall consumption rate was intermediate to that of red grouper (higher) and graysby grouper (lower). However, lionfish had the highest capture efficiency of all species, which was invariant of habitat. Much higher field abundance of lionfish resulted in high RIPs relative to both grouper species, demonstrating that the ecological impact of lionfish in this region will be driven mainly by high abundance and high predator efficiency rather than per capita effect. Our comparative study is the first empirical assessment of lionfish per capita impact and RIP in this region and is one of few such studies to quantify the FR of a marine predator.

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An eco-evolutionary rationale to distinguish alien and native status: why the dingo is a native species on mainland Australia

Australian Zoologist ◽

10.7882/az.2021.039 ◽

2021 ◽

Vol 41 (3) ◽

pp. 358-366

Author(s):

Peter B. Banks

Keyword(s):

Alien Species ◽

Introduced Species ◽

Native Species ◽

Genetic Basis ◽

Evolutionary Approach ◽

Range Transport ◽

The Status ◽

Local Species ◽

Natural Range ◽

Native Status

Distinguishing between whether a species is alien or native can be problematic, especially for introduced species that are long-established in new areas outside of their natural range. Transport by humans is the criterion for alien status used by many definitions, whereas arbitrary time since arrival to a location is often used to define native status. Here I propose an eco-evolutionary approach to distinguish between alien and native status and use this to resolve uncertainty in the status of the dingo in Australia. Dingoes were transported to mainland Australia by humans, but more than 4000 years ago, and dingoes now interbreed with feral domestic dogs. Legally, this mix of events has the dingo classified as native in some jurisdictions and alien in others. I suggest that native status for introduced species should be based on (1) whether the species has evolved in their new environment; (2) whether local species recognise and respond to them as they do towards deep endemic native species, and; (3) whether their impacts benchmark against those of a native species or are exaggerated like those of other alien species. Dingoes are behaviourally, reproductively and morphologically different to close ancestors from south-east Asia, and this difference has a genetic basis indicative of evolution in Australia. There is abundant evidence that native prey species on mainland Australia recognise and respond to them as a dangerous predator, which they are. But there is strong evidence that dingo impacts on prey are not exaggerated, with effect sizes from mensurative experiments similar to those of experiments on native predators rather than alien predators. These three lines of evidence suggest dingoes should be considered native to mainland Australia. I suggest this eco-evolutionary approach to defining native status can be helpful in resolving the often-heated debates about when an alien species becomes native.

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Alien Species vs. Native Species: From Community Ecology to Eco-Evolutionary Dynamics

10.20944/preprints201904.0189.v1 ◽

2019 ◽

Author(s):

Andersonn Silveira Prestes

Keyword(s):

Alien Species ◽

Exotic Species ◽

Native Species ◽

Evolutionary Dynamics ◽

Evolutionary Processes ◽

Native Communities ◽

Individualized Approach ◽

History Of ◽

Relationship Of ◽

The Relationship

The establishment and spread of exotic species is a contemporary major concern. Alien species may become invasive in their new habitat, leading to both/either environmental and/or economic impacts. I briefly reviewed the literature in the last decade about the relationship of exotic species and native communities. I identified that professionals usually approach the subject in two main points of view: (1) researchers tend to point out the impacts of alien species on entire communities, evaluating if the relationship is positive, negative or neutral; (2) they focus on the eco-evolutionary processes involved in the introductions, the dynamics of invasion, and individual study cases. When evaluating the response of introductions to entire communities, evidence seems to be ambiguous and may support positive, negative or neutral relationship, especially depending on the scale approached. The unique eco-evolutionary pathways of each introduction may be a great shortcoming in the searching for generalities. On the other hand, advances have been made in understanding the dynamics of invasion on different lineages through a more selective/individualized approach. I suggest that the dynamics of invasion might be studied through a perspective in which different eco-evolutionary processes, levels of organization (from gene to entire communities), the history of the organism(s) and time are taken into account. Individual cases might be compared in attempt to understand how the relationship exotic and native works and in the search for generalities.

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Golden jackal, a natural disperser or an invasive alien species in Slovakia? A summary within European context

Folia Oecologica ◽

10.2478/foecol-2020-0011 ◽

2020 ◽

Vol 47 (2) ◽

pp. 89-99

Author(s):

Peter Urban ◽

Nuno Guimarães ◽

Jozef Bučko

Keyword(s):

Alien Species ◽

Native Species ◽

Central And Eastern Europe ◽

Invasive Alien Species ◽

European Population ◽

Golden Jackal ◽

Game Species ◽

Fast Adaptation ◽

Natural Expansion ◽

Fast Increase

AbstractThis summary provides an overview of the golden jackal (Canis aureus) categorization in Europe with particular focus on its presence in Slovakia. The distribution range of this species in Europe has been expanding in recent decades. Currently, European population is in constant and fast increase, widening their ranges towards Central and Eastern Europe and more recently in some western countries. All over Europe, the categorization of the golden jackal status is discussed with some controversial. A recent genetic study helped to determine that golden jackals do not meet the established three criteria, which categorize a species as an invasive alien species. In Slovakia, golden jackals’ numbers grown considerably in the last decade and with an increasing of their distribution through the country it became a permanent species of the Slovak fauna. The only internal status is the hunting Act no. 274/2009, which classifies it as, game species. The fast adaptation and dispersion through Slovakia can be considered similar to the behaviour of an invasive species, as suggested in previous studies in Hungary. Based on widely accepted definitions, agreed under international legal instruments, it is quite clear that the term ‘Invasive Alien Species’ only encompasses non-native species specifically introduced by humans (intentionally or accidentally). Following this Invasive Alien Species terminology, golden jackals cannot be categorized as such in Slovakia. The natural expansion, the growing ranges, and the increase in numbers of the golden jackal in Slovakia in the last decades points to a need to improve the knowledge of the species.

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Aliens in the Aegean – a sea under siege (ALAS)

Research Ideas and Outcomes ◽

10.3897/rio.6.e53057 ◽

2020 ◽

Vol 6 ◽

Author(s):

Stelios Katsanevakis ◽

Konstantinos Tsirintanis ◽

Maria Sini ◽

Vasilis Gerovasileiou ◽

Nikoletta Koukourouvli

Keyword(s):

Remote Sensing ◽

Invasive Species ◽

High Resolution ◽

Alien Species ◽

Invasive Alien Species ◽

Aegean Sea ◽

Ecological Impacts ◽

Cumulative Impacts ◽

Cumulative Impact ◽

Marine Habitats

ALAS aims to fill knowledge gaps on the impacts of marine alien species in the Aegean Sea, and support marine managers and policy makers in prioritizing mitigation actions. The project will focus on under-studied alien-native interactions, priority and vulnerable habitats (such as shallow forests of canopy algae and underwater caves), and apply a multitude of approaches. It will apply a standardized, quantitative method for mapping Cumulative IMpacts of invasive Alien species on marine ecosystems (CIMPAL), according to which cumulative impact scores are estimated on the basis of the distributions of invasive species and ecosystems, and both the reported magnitude of ecological impacts and the strength of such evidence. Towards that direction, ALAS will improve our knowledge base and compile the needed information to estimate CIMPAL by (1) conducting a series of field experiments and surveys to investigate the impacts of selected invasive alien species on marine habitats, (2) producing high-resolution habitat maps in the coastal zone, refining the results of previous research efforts through fieldwork, remote sensing and satellite imaging, (3) producing species distribution models for all invasive species, based on extensive underwater surveys for the collection of new data and integrating all existing information. ALAS will incorporate skills and analyses in novel ways and provide high-resolution results at a large scale; couple classic and novel tools and follow a trans-disciplinary approach, combining knowledge from the fields of invasion biology, conservation biology, biogeography, fisheries science, marine ecology, remote sensing, statistical modelling; conduct for the first time in the Aegean Sea a comprehensive, high-resolution analysis of cumulative impacts of invasive alien species; and report results in formats appropriate for decision-makers and society, thus transferring research-based knowledge to inform and influence policy decisions.

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New knowledge about species of the genus Chaerophyllum (Apiaceae) in Latvia

Botanica ◽

10.2478/botlit-2018-0011 ◽

2018 ◽

Vol 24 (2) ◽

pp. 115-123

Author(s):

Pēteris Evarts-Bunders ◽

Gunta Evarte-Bundere

Keyword(s):

Alien Species ◽

Native Species ◽

Human Settlements ◽

Herbarium Material ◽

South Eastern ◽

Root Vegetable ◽

New Knowledge ◽

Critical Revision

Abstract Evarts-Bunders P., Evarte-Bundere G., 2018: New knowledge about species of the genus Chaerophyllum (Apiaceae) in Latvia. - Botanica, 24(2): 115-123. The genus Chaerophyllum belongs to the Apiaceae family, which is one of the most complicated and difficult to identify in Latvia. There are five species verified by herbarium materials known in Latvia: Chaerophyllum aromaticum - native species, rather frequent in all regions in forests, parks and shrublands, C. aureum - anthropophyte, known only from one locality in Daugavpils city along the railway, C. bulbosum - anthropophyte, earlier grown as a root vegetable and now found rarely in parks, at roadsides, waste places, along fences and under canopy of trees close to human settlements, C. hirsutum - native species, known from several localities only in south-eastern part of Latvia, mostly in the Daugava valley - forested ravines, slopes of broad-leaved forests, and C. temulum - alien species, known only from few localities - waste places, railway sides and old manor parks in the whole territory of Latvia. The most striking results are related to the distribution of C. hirsutum in Latvia. The literature sources and herbarium material of Anthriscus nitida, previously known and collected in Latvia, after our critical revision are considered as Chaerophyllum hirsutum, whereas Anthriscus nitida at least in the Latvian flora has not been identified yet and has been removed from the flora lists by mistake.

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