A novel trap for quantifying the dispersal of seeds by wind

Kay Morris, Elisa Raulings, W. Melbourne, Ralph MAC NALLY, Ross Thompson

    Research output: Contribution to journalArticle

    3 Citations (Scopus)

    Abstract

    Question: Understanding the aerial movement of seed is of great significance to the management of native and invasive plant species, but has proven difficult to measure. Here we examine how a more quantitative approach to measuring the aerial movement of seed can be achieved. Location: SE Australia. Methods: We describe a novel seed trap (the ‘Melbourne trap’), for which the proportion of free-stream airflow through the trap can be measured, allowing a more quantitative approach to measuring aerial seed movement. We assessed airflow through the Melbourne trap in a wind tunnel and describe how this information, along with measurements of wind speed and direction, can now be used to derive seed density per volume of airflow. We compare the seed capture and retention efficiency of the Melbourne trap with two simpler and cheaper trap designs, bucket traps and sticky traps. Results: Melbourne and bucket traps captured significantly more species than sticky traps. Seed catch was dominated numerically by Lachnagrostis filiformis (G. Forst.) Trin. Melbourne traps proved more effective than sticky traps, but not bucket traps, in capturing L. filiformis, based on intake area. For all other seeds, Melbourne traps were more effective than both bucket and sticky traps. Conclusion: The Melbourne trap design is a significant advance in quantifying seed dispersal by wind. Melbourne traps will improve the capacity and accuracy of studies that seek to: (i) quantify seed fluxes across landscapes boundaries; (ii) assess directionality of dispersal; (iii) understand processes controlling seed release; and (iv) compare dispersal in wind and water.
    Original languageEnglish
    Pages (from-to)807-817
    Number of pages11
    JournalJournal of Vegetation Science
    Volume22
    DOIs
    Publication statusPublished - 2011

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    seed dispersal
    traps
    seed
    seeds
    buckets
    sticky traps
    airflow
    air flow
    wind tunnel
    wind direction
    wind tunnels
    wind velocity
    wind speed

    Cite this

    Morris, Kay ; Raulings, Elisa ; Melbourne, W. ; MAC NALLY, Ralph ; Thompson, Ross. / A novel trap for quantifying the dispersal of seeds by wind. In: Journal of Vegetation Science. 2011 ; Vol. 22. pp. 807-817.
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    abstract = "Question: Understanding the aerial movement of seed is of great significance to the management of native and invasive plant species, but has proven difficult to measure. Here we examine how a more quantitative approach to measuring the aerial movement of seed can be achieved. Location: SE Australia. Methods: We describe a novel seed trap (the ‘Melbourne trap’), for which the proportion of free-stream airflow through the trap can be measured, allowing a more quantitative approach to measuring aerial seed movement. We assessed airflow through the Melbourne trap in a wind tunnel and describe how this information, along with measurements of wind speed and direction, can now be used to derive seed density per volume of airflow. We compare the seed capture and retention efficiency of the Melbourne trap with two simpler and cheaper trap designs, bucket traps and sticky traps. Results: Melbourne and bucket traps captured significantly more species than sticky traps. Seed catch was dominated numerically by Lachnagrostis filiformis (G. Forst.) Trin. Melbourne traps proved more effective than sticky traps, but not bucket traps, in capturing L. filiformis, based on intake area. For all other seeds, Melbourne traps were more effective than both bucket and sticky traps. Conclusion: The Melbourne trap design is a significant advance in quantifying seed dispersal by wind. Melbourne traps will improve the capacity and accuracy of studies that seek to: (i) quantify seed fluxes across landscapes boundaries; (ii) assess directionality of dispersal; (iii) understand processes controlling seed release; and (iv) compare dispersal in wind and water.",
    keywords = "Australia, Connectivity, Lachnagrostis, filiformis, Seed dispersal, Seed traps, Wetland, plants",
    author = "Kay Morris and Elisa Raulings and W. Melbourne and {MAC NALLY}, Ralph and Ross Thompson",
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    A novel trap for quantifying the dispersal of seeds by wind. / Morris, Kay; Raulings, Elisa; Melbourne, W.; MAC NALLY, Ralph; Thompson, Ross.

    In: Journal of Vegetation Science, Vol. 22, 2011, p. 807-817.

    Research output: Contribution to journalArticle

    TY - JOUR

    T1 - A novel trap for quantifying the dispersal of seeds by wind

    AU - Morris, Kay

    AU - Raulings, Elisa

    AU - Melbourne, W.

    AU - MAC NALLY, Ralph

    AU - Thompson, Ross

    PY - 2011

    Y1 - 2011

    N2 - Question: Understanding the aerial movement of seed is of great significance to the management of native and invasive plant species, but has proven difficult to measure. Here we examine how a more quantitative approach to measuring the aerial movement of seed can be achieved. Location: SE Australia. Methods: We describe a novel seed trap (the ‘Melbourne trap’), for which the proportion of free-stream airflow through the trap can be measured, allowing a more quantitative approach to measuring aerial seed movement. We assessed airflow through the Melbourne trap in a wind tunnel and describe how this information, along with measurements of wind speed and direction, can now be used to derive seed density per volume of airflow. We compare the seed capture and retention efficiency of the Melbourne trap with two simpler and cheaper trap designs, bucket traps and sticky traps. Results: Melbourne and bucket traps captured significantly more species than sticky traps. Seed catch was dominated numerically by Lachnagrostis filiformis (G. Forst.) Trin. Melbourne traps proved more effective than sticky traps, but not bucket traps, in capturing L. filiformis, based on intake area. For all other seeds, Melbourne traps were more effective than both bucket and sticky traps. Conclusion: The Melbourne trap design is a significant advance in quantifying seed dispersal by wind. Melbourne traps will improve the capacity and accuracy of studies that seek to: (i) quantify seed fluxes across landscapes boundaries; (ii) assess directionality of dispersal; (iii) understand processes controlling seed release; and (iv) compare dispersal in wind and water.

    AB - Question: Understanding the aerial movement of seed is of great significance to the management of native and invasive plant species, but has proven difficult to measure. Here we examine how a more quantitative approach to measuring the aerial movement of seed can be achieved. Location: SE Australia. Methods: We describe a novel seed trap (the ‘Melbourne trap’), for which the proportion of free-stream airflow through the trap can be measured, allowing a more quantitative approach to measuring aerial seed movement. We assessed airflow through the Melbourne trap in a wind tunnel and describe how this information, along with measurements of wind speed and direction, can now be used to derive seed density per volume of airflow. We compare the seed capture and retention efficiency of the Melbourne trap with two simpler and cheaper trap designs, bucket traps and sticky traps. Results: Melbourne and bucket traps captured significantly more species than sticky traps. Seed catch was dominated numerically by Lachnagrostis filiformis (G. Forst.) Trin. Melbourne traps proved more effective than sticky traps, but not bucket traps, in capturing L. filiformis, based on intake area. For all other seeds, Melbourne traps were more effective than both bucket and sticky traps. Conclusion: The Melbourne trap design is a significant advance in quantifying seed dispersal by wind. Melbourne traps will improve the capacity and accuracy of studies that seek to: (i) quantify seed fluxes across landscapes boundaries; (ii) assess directionality of dispersal; (iii) understand processes controlling seed release; and (iv) compare dispersal in wind and water.

    KW - Australia

    KW - Connectivity

    KW - Lachnagrostis

    KW - filiformis

    KW - Seed dispersal

    KW - Seed traps

    KW - Wetland

    KW - plants

    U2 - 10.1111/j.1654-1103.2011.01290.x

    DO - 10.1111/j.1654-1103.2011.01290.x

    M3 - Article

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    EP - 817

    JO - Journal of Vegetation Science

    JF - Journal of Vegetation Science

    SN - 1100-9233

    ER -