Revision of the tryphonine parasitoids (Hymenoptera: Ichneumonidae) of a beech sawfly, <i>Fagineura crenativora</i> Vikberg &amp; Zinovjev (Hymenoptera: Tenthredinidae: Nematinae)

Watanabe, Kyohei; Taniwaki, Toru; Kasparyan, D.R.

doi:10.1111/ens.12327

Cited by 3 publications

(3 citation statements)

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“…2015) and Tryphoninae ( Cteniscus fagineurae , Eridolius tanzawanus , Exyston elongatus ) (Watanabe et al . 2018). The abundance of these parasitoids ranged from two (1%) on Mt.…”

Section: Resultsmentioning

confidence: 99%

“…In addition, the faunal make‐up of ichneumonid wasps, especially parasitizing the beech sawfly, has been well studied in the Tanzawa Mountains (Taniwaki & Watanabe 2012; Watanabe et al . 2015, 2018; Watanabe & Taniwaki 2018). Although many species of ichneumonid wasps are recorded from Kanagawa Prefecture, including the Tanzawa Mountains (Nagase & Watanabe 2018), no study has investigated the community structure of ichneumonid wasps.…”

Section: Introductionmentioning

confidence: 99%

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Species richness, abundance and diversity of ichneumonid wasps in Japanese beech forests impacted by sika deer and sawfly herbivory

Taniwaki

Tamura

Watanabe

2020

Entomological Science

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We investigated the community structure of ichneumonid wasps inhabiting beech forests at six sites in the Tanzawa Mountains of Japan under different magnitudes of impact by sika deer Cervus nippon and beech sawfly Fagineura crenativora on vegetation. Using yellow flight-interception traps, we captured 2,528 ichneumonid wasps representing 367 species in 23 subfamilies. The number of species at each site ranged from 77 to 136 and approximately 80% of these were low-density species (i.e. only one to two individuals captured per site). The number of individuals at each site ranged from 248 to 897, and the percentage of the beech sawfly parasitoids varied widely from 1% to 57%. The numbers of species in parasitoid groups categorized according to their hosts, that is, sawfly (not including the beech sawfly), Lepidoptera, woodborer, fungivore or the others, did not greatly differ among the study sites. Parasitoids attacking herbivorous insects exceeded others in species richness and abundance at all sites. Six sites were classified into four groups in terms of abundance of the host groups when excluding the parasitoids of the beech sawfly, but into only two groups when including these parasitoids. Species diversity and evenness were the highest at the least impacted site even if the beech sawfly parasitoids were excluded from calculation. We suggested some environmental factors, such as groundcover vegetation, abundance of the beech sawfly and structure and age of forest stands, that could have affected the community structure of ichneumonid wasps in the beech forests.

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“…2015) and Tryphoninae ( Cteniscus fagineurae , Eridolius tanzawanus , Exyston elongatus ) (Watanabe et al . 2018). The abundance of these parasitoids ranged from two (1%) on Mt.…”

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Species richness, abundance and diversity of ichneumonid wasps in Japanese beech forests impacted by sika deer and sawfly herbivory

Taniwaki

Tamura

Watanabe

2020

Entomological Science

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“…Between 1997 and 2010 at Mt. Hinokiboramary (Japan), ~18% of beech trees were killed by the nematine sawfly Fagineura crenativora (Koshiji et al, 2012 in Watanabe et al, 2018). Two years of severe attack by the pine sawfly Neodiprion sertifer caused a 33% volume loss in mature pine trees (Austarå et al, 1987).…”

Section: Introductionmentioning

confidence: 99%

Chemical and visual ecology of the Symphyta

Guignard

Slippers

Allison

2022

Agri and Forest Entomology

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1. The Symphyta is the most basal sub-order of the Hymenoptera and includes the woodwasps, horntails and sawflies, many of which are pests. Adults are generally short-lived and as a result males and females experience strong selection to rapidly find a mate and females to find oviposition sites. Mate-searching typically relies on visual and olfactory stimuli such as sexually dimorphic morphology (i.e., body parts used in signalling) and pheromones.2. Here we review the available literature on the chemical and visual ecology of the Symphyta with potential for use in survey and detection programmes. Stimuli reviewed include but are not limited to sex pheromones, larval defensive compounds, plant kairomones and colour preferences. 3. Sex pheromones are known for 19 species of Symphyta and show shared evolutionary patterns in chemistry, production site and ecological role.4. In general, sex pheromones in the Symphyta are female-produced, oxidized cuticular hydrocarbons and yellow traps capture more individuals than other colours, although exceptions do exist. More work is needed to expand on these and identify new patterns in the visual and chemical ecology of the Symphyta.

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Response of specialist and generalist predators to nonprogressive annual fluctuations in herbivorous insect populations

et al. 2022

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Revision of the tryphonine parasitoids (Hymenoptera: Ichneumonidae) of a beech sawfly, Fagineura crenativora Vikberg & Zinovjev (Hymenoptera: Tenthredinidae: Nematinae)

Cited by 3 publications

References 8 publications

Species richness, abundance and diversity of ichneumonid wasps in Japanese beech forests impacted by sika deer and sawfly herbivory

Species richness, abundance and diversity of ichneumonid wasps in Japanese beech forests impacted by sika deer and sawfly herbivory

Chemical and visual ecology of the Symphyta

Response of specialist and generalist predators to nonprogressive annual fluctuations in herbivorous insect populations

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