Genetic structure of an introduced paper wasp,<i><scp>P</scp>olistes chinensis antennalis</i>(<scp>H</scp>ymenoptera,<scp>V</scp>espidae) in<scp>N</scp>ew<scp>Z</scp>ealand

Tsuchida, Koji; Kudô, Kazuyuki; Ishiguro, Norio

doi:10.1111/mec.12852

Cited by 30 publications

(31 citation statements)

References 116 publications

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“…This suggests that the wasp has sl-CSD, rather than ml-CSD [25]. On islands species often have reduced genetic diversity owing to isolation and founder effects [57–59]. Thus, we expect Hymenoptera with CSD on islands to have relatively high DMP [20].…”

Section: Discussionmentioning

confidence: 99%

Increased fluctuation in a butterfly metapopulation leads to diploid males and decline of a hyperparasitoid

2018

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Climate change can increase spatial synchrony of population dynamics, leading to large-scale fluctuation that destabilizes communities. High trophic level species such as parasitoids are disproportionally affected because they depend on unstable resources. Most parasitoid wasps have complementary sex determination, producing sterile males when inbred, which can theoretically lead to population extinction via the diploid male vortex (DMV). We examined this process empirically using a hyperparasitoid population inhabiting a spatially structured host population in a large fragmented landscape. Over four years of high host butterfly metapopulation fluctuation, diploid male production by the wasp increased, and effective population size declined precipitously. Our multitrophic spatially structured model shows that host population fluctuation can cause local extinctions of the hyperparasitoid because of the DMV. However, regionally it persists because spatial structure allows for efficient local genetic rescue via balancing selection for rare alleles carried by immigrants. This is, to our knowledge, the first empirically based study of the possibility of the DMV in a natural host–parasitoid system.

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Section: Discussionmentioning

confidence: 99%

Increased fluctuation in a butterfly metapopulation leads to diploid males and decline of a hyperparasitoid

2018

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“…2012; Tsuchida et al. 2014). In contrast, the Argentine ant, Linepithema humile , the Eastern Subterranean termite, Reticulitermes flavipes , and the Buff‐tailed bumblebee, Bombus terrestris , experienced drops in allelic richness of 50% or more in their invasive ranges (Tsutsui et al.…”

Section: Discussionmentioning

confidence: 99%

Population genetic structure of the predatory, social wasp Vespula pensylvanica in its native and invasive range

Chau

Hanna

Jenkins

et al. 2015

Ecology and Evolution

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Invasive species cause extensive damage to their introduced ranges. Ocean archipelagos are particularly vulnerable to invasive taxa. In this study, we used polymorphic microsatellite markers to investigate the genetic structure of the social wasp Vespula pensylvanica in its native range of North America and its introduced range in the archipelago of Hawaii. Our goal was to gain a better understanding of the invasion dynamics of social species and the processes affecting biological invasions. We found that V. pensylvanica showed no significant genetic isolation by distance and little genetic structure over a span of 2000 km in its native range. This result suggests that V. pensylvanica can successfully disperse across large distances either through natural‐ or human‐mediated mechanisms. In contrast to the genetic patterns observed in the native range, we found substantial genetic structure in the invasive V. pensylvanica range in Hawaii. The strong patterns of genetic differentiation within and between the Hawaiian Islands may reflect the effects of geographic barriers and invasion history on gene flow. We also found some evidence for gene flow between the different islands of Hawaii which was likely mediated through human activity. Overall, this study provides insight on how geographic barriers, invasion history, and human activity can shape population genetic structure of invasive species.

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“…, Tsuchida et al. ). Invading individuals may represent only a small proportion of phenotypic and genotypic diversity within the population of the native range (Sakai et al.…”

Section: Introductionmentioning

confidence: 98%

Symbiotic bacterial communities in ants are modified by invasion pathway bottlenecks and alter host behavior

Lester

Sébastien

Suarez

et al. 2017

Ecology

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Biological invasions are a threat to global biodiversity and provide unique opportunities to study ecological processes. Population bottlenecks are a common feature of biological invasions and the severity of these bottlenecks is likely to be compounded as an invasive species spreads from initial invasion sites to additional locations. Despite extensive work on the genetic consequences of bottlenecks, we know little about how they influence microbial communities of the invaders themselves. Due to serial bottlenecks, invasive species may lose microbial symbionts including pathogenic taxa (the enemy release hypothesis) and/or may accumulate natural enemies with increasing time after invasion (the pathogen accumulation and invasive decline hypothesis). We tested these alternate hypotheses by surveying bacterial communities of Argentine ants (Linepithema humile). We found evidence for serial symbiont bottlenecks: the bacterial community richness declined over the invasion pathway from Argentina to New Zealand. The abundance of some genera, such as Lactobacillus, also significantly declined over the invasion pathway. Argentine ants from populations in the United States shared the most genera with ants from their native range in Argentina, while New Zealand shared the least (120 vs. 57, respectively). Nine genera were present in all sites around the globe possibly indicating a core group of obligate microbes. In accordance with the pathogen accumulation and invasive decline hypothesis, Argentine ants acquired genera unique to each specific invaded country. The United States had the most unique genera, though even within New Zealand these ants acquired symbionts. In addition to our biogeographic sampling, we administered antibiotics to Argentine ants to determine if changes in the micro-symbiont community could influence behavior and survival in interspecific interactions. Treatment with the antibiotics spectinomycin and kanamycin only slightly increased Argentine ant interspecific aggression, but this increase significantly decreased survival in interspecific interactions. The survival of the native ant species also decreased when the symbiotic microbial community within Argentine ants was modified by antibiotics. Our work offers support for both the enemy release hypothesis and that invasive species accumulate novel microbial taxa within their invaded range. These changes appear likely to influence invader behavior and survival.

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Genetic structure of an introduced paper wasp,Polistes chinensis antennalis(Hymenoptera,Vespidae) inNewZealand

Cited by 30 publications

References 116 publications

Increased fluctuation in a butterfly metapopulation leads to diploid males and decline of a hyperparasitoid

Increased fluctuation in a butterfly metapopulation leads to diploid males and decline of a hyperparasitoid

Population genetic structure of the predatory, social wasp Vespula pensylvanica in its native and invasive range

Symbiotic bacterial communities in ants are modified by invasion pathway bottlenecks and alter host behavior

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