Variation in abundance of nectarivorous birds: does a competitive despot interfere with flower tracking?

Joanne M. Bennett, Rohan H. Clarke, Jim THOMSON, Ralph MAC NALLY

    Research output: Contribution to journalArticle

    19 Citations (Scopus)

    Abstract

    1. Adaptive resource tracking in space and time may be disrupted by the modification of resources and competitors. Major global change drivers (e.g. land-use change) have induced declines in many native species, while facilitating only a few. Given that many resources are predicted to become increasingly scarce under the joint effects of climate and land-use change, disturbance-tolerant species that are able to defend high-value resources may further limit the persistence of disturbance-sensitive species. 2. We sought to determine which nectarivorous birds track variation in flowering and if relationships between nectarivores and flowering are affected by on-transect vegetation structure or the occurrence of a native, hyper-aggressive species, the noisy miner Manorina melanocephala, which has become more prevalent. 3. We measured eucalypt flowering and abundances of nectarivorous birds over the course of a year; we measured vegetation structure on the same forest transects. 4. Nectarivores tracked spatial and some temporal variation in flowering, but this relationship was disrupted by noisy miners. Where present in sufficient numbers, the noisy miner excluded small-bodied nectarivores (
    Original languageEnglish
    Pages (from-to)1531-1541
    Number of pages11
    JournalJournal of Animal Ecology
    Volume83
    DOIs
    Publication statusPublished - 2014

    Fingerprint

    nectar feeding
    flowering
    flower
    bird
    flowers
    birds
    vegetation structure
    resource
    land use change
    disturbance
    global change
    native species
    space and time
    temporal variation
    indigenous species
    persistence
    transect
    climate

    Cite this

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    title = "Variation in abundance of nectarivorous birds: does a competitive despot interfere with flower tracking?",
    abstract = "1. Adaptive resource tracking in space and time may be disrupted by the modification of resources and competitors. Major global change drivers (e.g. land-use change) have induced declines in many native species, while facilitating only a few. Given that many resources are predicted to become increasingly scarce under the joint effects of climate and land-use change, disturbance-tolerant species that are able to defend high-value resources may further limit the persistence of disturbance-sensitive species. 2. We sought to determine which nectarivorous birds track variation in flowering and if relationships between nectarivores and flowering are affected by on-transect vegetation structure or the occurrence of a native, hyper-aggressive species, the noisy miner Manorina melanocephala, which has become more prevalent. 3. We measured eucalypt flowering and abundances of nectarivorous birds over the course of a year; we measured vegetation structure on the same forest transects. 4. Nectarivores tracked spatial and some temporal variation in flowering, but this relationship was disrupted by noisy miners. Where present in sufficient numbers, the noisy miner excluded small-bodied nectarivores (",
    keywords = "eucalyptus, interspecific interactions, nectar, noisy miner, resource tracking, seasonal movements.",
    author = "Bennett, {Joanne M.} and Clarke, {Rohan H.} and Jim THOMSON and {MAC NALLY}, Ralph",
    year = "2014",
    doi = "10.1111/1365-2656.12245",
    language = "English",
    volume = "83",
    pages = "1531--1541",
    journal = "Journal of Animal Ecology",
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    publisher = "Wiley-Blackwell",

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    Variation in abundance of nectarivorous birds: does a competitive despot interfere with flower tracking? / Bennett, Joanne M.; Clarke, Rohan H.; THOMSON, Jim; MAC NALLY, Ralph.

    In: Journal of Animal Ecology, Vol. 83, 2014, p. 1531-1541.

    Research output: Contribution to journalArticle

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    AU - Bennett, Joanne M.

    AU - Clarke, Rohan H.

    AU - THOMSON, Jim

    AU - MAC NALLY, Ralph

    PY - 2014

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    KW - seasonal movements.

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