Absence of nectar resource partitioning in a community of parasitoid wasps

Myles Menz, Graham Brown, K Dixon, Ryan Phillips

    Research output: Contribution to journalArticleResearchpeer-review

    Abstract

    Parasitoid wasps occur in diverse communities, with the adults of most species sourcing carbohydrates from nectar or honeydew. However, the role of niche partitioning of nectar resources in maintaining diverse communities of parasitoid Hymenoptera is poorly known. To elucidate patterns of nectar resource use and test whether species partition resources, we investigated pollen loads in a community of parasitoid thynnine wasps in the biodiversity hotspot of southwestern Australia. In total, 304 thynnine wasps from 28 species were captured. Eighteen of these species are undescribed, highlighting the high diversity of unrecognized species in southwestern Australia. Pollen loads were detected on 111 individuals representing 19 species. Six pollen types were identified. All species that carried pollen primarily visited two tree species, Agonis flexuosa and Eucalyptus marginata, in the Myrtaceae. The other four pollen types were only recorded from single wasps. There was no evidence of nectar-resource partitioning. This may be due to these Myrtaceae producing abundant, open-faced flowers. Wasp species that were not recorded carrying pollen may utilise other carbohydrate sources, such as homopoteran honeydew. Niche partitioning is predicted to occur during the parasitoid larval phase of the life cycle. This study highlights the importance of nectariferous Myrtaceae in supporting diverse wasp communities. Further, two species of nectar-foraging wasps collected here are involved in the pollination of rare orchid species. Hence, conservation and management of habitats that support floriferous Myrtaceae are important for both the maintenance of diverse wasp communities, and the plants they pollinate. � 2015, Springer International Publishing Switzerland.
    Original languageEnglish
    Pages (from-to)703-711
    Number of pages9
    JournalJournal of Insect Conservation
    Volume19
    Issue number4
    DOIs
    Publication statusPublished - 2015

    Fingerprint

    niche partitioning
    nectar
    wasp
    parasitoid
    Myrtaceae
    pollen
    honeydew
    niches
    carbohydrates
    Eucalyptus marginata
    habitat conservation
    carbohydrate
    Switzerland
    parasitic wasps
    life cycle (organisms)
    pollination
    Hymenoptera
    foraging
    biodiversity
    flowers

    Cite this

    Menz, Myles ; Brown, Graham ; Dixon, K ; Phillips, Ryan. / Absence of nectar resource partitioning in a community of parasitoid wasps. In: Journal of Insect Conservation. 2015 ; Vol. 19, No. 4. pp. 703-711.
    @article{2f3db5c90ed34206bd8bb367b73e3d7e,
    title = "Absence of nectar resource partitioning in a community of parasitoid wasps",
    abstract = "Parasitoid wasps occur in diverse communities, with the adults of most species sourcing carbohydrates from nectar or honeydew. However, the role of niche partitioning of nectar resources in maintaining diverse communities of parasitoid Hymenoptera is poorly known. To elucidate patterns of nectar resource use and test whether species partition resources, we investigated pollen loads in a community of parasitoid thynnine wasps in the biodiversity hotspot of southwestern Australia. In total, 304 thynnine wasps from 28 species were captured. Eighteen of these species are undescribed, highlighting the high diversity of unrecognized species in southwestern Australia. Pollen loads were detected on 111 individuals representing 19 species. Six pollen types were identified. All species that carried pollen primarily visited two tree species, Agonis flexuosa and Eucalyptus marginata, in the Myrtaceae. The other four pollen types were only recorded from single wasps. There was no evidence of nectar-resource partitioning. This may be due to these Myrtaceae producing abundant, open-faced flowers. Wasp species that were not recorded carrying pollen may utilise other carbohydrate sources, such as homopoteran honeydew. Niche partitioning is predicted to occur during the parasitoid larval phase of the life cycle. This study highlights the importance of nectariferous Myrtaceae in supporting diverse wasp communities. Further, two species of nectar-foraging wasps collected here are involved in the pollination of rare orchid species. Hence, conservation and management of habitats that support floriferous Myrtaceae are important for both the maintenance of diverse wasp communities, and the plants they pollinate. � 2015, Springer International Publishing Switzerland.",
    keywords = "community dynamics, foraging behavior, nectar, parasitoid, partitioning, pollination, species conservation, wasp, Agonis flexuosa, Cucumis melo var. inodorus, Eucalyptus marginata, Hymenoptera, Myrtaceae, Thynninae",
    author = "Myles Menz and Graham Brown and K Dixon and Ryan Phillips",
    year = "2015",
    doi = "10.1007/s10841-015-9793-2",
    language = "English",
    volume = "19",
    pages = "703--711",
    journal = "Journal of Insect Conservation",
    issn = "1366-638X",
    publisher = "Springer",
    number = "4",

    }

    Absence of nectar resource partitioning in a community of parasitoid wasps. / Menz, Myles; Brown, Graham; Dixon, K; Phillips, Ryan.

    In: Journal of Insect Conservation, Vol. 19, No. 4, 2015, p. 703-711.

    Research output: Contribution to journalArticleResearchpeer-review

    TY - JOUR

    T1 - Absence of nectar resource partitioning in a community of parasitoid wasps

    AU - Menz, Myles

    AU - Brown, Graham

    AU - Dixon, K

    AU - Phillips, Ryan

    PY - 2015

    Y1 - 2015

    N2 - Parasitoid wasps occur in diverse communities, with the adults of most species sourcing carbohydrates from nectar or honeydew. However, the role of niche partitioning of nectar resources in maintaining diverse communities of parasitoid Hymenoptera is poorly known. To elucidate patterns of nectar resource use and test whether species partition resources, we investigated pollen loads in a community of parasitoid thynnine wasps in the biodiversity hotspot of southwestern Australia. In total, 304 thynnine wasps from 28 species were captured. Eighteen of these species are undescribed, highlighting the high diversity of unrecognized species in southwestern Australia. Pollen loads were detected on 111 individuals representing 19 species. Six pollen types were identified. All species that carried pollen primarily visited two tree species, Agonis flexuosa and Eucalyptus marginata, in the Myrtaceae. The other four pollen types were only recorded from single wasps. There was no evidence of nectar-resource partitioning. This may be due to these Myrtaceae producing abundant, open-faced flowers. Wasp species that were not recorded carrying pollen may utilise other carbohydrate sources, such as homopoteran honeydew. Niche partitioning is predicted to occur during the parasitoid larval phase of the life cycle. This study highlights the importance of nectariferous Myrtaceae in supporting diverse wasp communities. Further, two species of nectar-foraging wasps collected here are involved in the pollination of rare orchid species. Hence, conservation and management of habitats that support floriferous Myrtaceae are important for both the maintenance of diverse wasp communities, and the plants they pollinate. � 2015, Springer International Publishing Switzerland.

    AB - Parasitoid wasps occur in diverse communities, with the adults of most species sourcing carbohydrates from nectar or honeydew. However, the role of niche partitioning of nectar resources in maintaining diverse communities of parasitoid Hymenoptera is poorly known. To elucidate patterns of nectar resource use and test whether species partition resources, we investigated pollen loads in a community of parasitoid thynnine wasps in the biodiversity hotspot of southwestern Australia. In total, 304 thynnine wasps from 28 species were captured. Eighteen of these species are undescribed, highlighting the high diversity of unrecognized species in southwestern Australia. Pollen loads were detected on 111 individuals representing 19 species. Six pollen types were identified. All species that carried pollen primarily visited two tree species, Agonis flexuosa and Eucalyptus marginata, in the Myrtaceae. The other four pollen types were only recorded from single wasps. There was no evidence of nectar-resource partitioning. This may be due to these Myrtaceae producing abundant, open-faced flowers. Wasp species that were not recorded carrying pollen may utilise other carbohydrate sources, such as homopoteran honeydew. Niche partitioning is predicted to occur during the parasitoid larval phase of the life cycle. This study highlights the importance of nectariferous Myrtaceae in supporting diverse wasp communities. Further, two species of nectar-foraging wasps collected here are involved in the pollination of rare orchid species. Hence, conservation and management of habitats that support floriferous Myrtaceae are important for both the maintenance of diverse wasp communities, and the plants they pollinate. � 2015, Springer International Publishing Switzerland.

    KW - community dynamics

    KW - foraging behavior

    KW - nectar

    KW - parasitoid

    KW - partitioning

    KW - pollination

    KW - species conservation

    KW - wasp

    KW - Agonis flexuosa

    KW - Cucumis melo var. inodorus

    KW - Eucalyptus marginata

    KW - Hymenoptera

    KW - Myrtaceae

    KW - Thynninae

    U2 - 10.1007/s10841-015-9793-2

    DO - 10.1007/s10841-015-9793-2

    M3 - Article

    VL - 19

    SP - 703

    EP - 711

    JO - Journal of Insect Conservation

    JF - Journal of Insect Conservation

    SN - 1366-638X

    IS - 4

    ER -