Linking habitat structure and orientation in an arboreal species Gehyra variegata (Gekkonidae)

B. Gruber, K. Henle

    Research output: Contribution to journalArticle

    24 Citations (Scopus)

    Abstract

    Understanding how organisms move through landscapes is important for predicting the effects of landscape structure on the population dynamics and spatial distribution of organisms. Despite the accepted importance, the ability to orientate when moving is a poorly studied phenomenon. In this study we report on a translocation experiment in which we used fluorescent powder to study the ability of the arboreal gecko Gehyra variegata to orientate successfully between trees. The relocation experiment demonstrated the ability of translocated geckos to return to the tree of initial capture. Further, we investigated the set of rules geckos employ, when travelling through their structured habitat. Computer simulations relating capture-mark-recapture data to structural components of the habitat revealed that movement rules taking vision into account showed the best fit to the empirical data. The movement rule: "move randomly to one of the three next neighbouring trees that are visible" described the observed movement best. This movement rule connects all trees in the habitat and lowers the predation risk during movement.
    Original languageUndefined
    Pages (from-to)406-414
    Number of pages9
    JournalOIKOS
    Volume107
    Issue number2
    DOIs
    Publication statusPublished - 2004

    Cite this

    @article{8063806ec6074593825e257f90657114,
    title = "Linking habitat structure and orientation in an arboreal species Gehyra variegata (Gekkonidae)",
    abstract = "Understanding how organisms move through landscapes is important for predicting the effects of landscape structure on the population dynamics and spatial distribution of organisms. Despite the accepted importance, the ability to orientate when moving is a poorly studied phenomenon. In this study we report on a translocation experiment in which we used fluorescent powder to study the ability of the arboreal gecko Gehyra variegata to orientate successfully between trees. The relocation experiment demonstrated the ability of translocated geckos to return to the tree of initial capture. Further, we investigated the set of rules geckos employ, when travelling through their structured habitat. Computer simulations relating capture-mark-recapture data to structural components of the habitat revealed that movement rules taking vision into account showed the best fit to the empirical data. The movement rule: {"}move randomly to one of the three next neighbouring trees that are visible{"} described the observed movement best. This movement rule connects all trees in the habitat and lowers the predation risk during movement.",
    author = "B. Gruber and K. Henle",
    note = "cited By 20",
    year = "2004",
    doi = "10.1111/j.0030-1299.2004.12901.x",
    language = "Undefined",
    volume = "107",
    pages = "406--414",
    journal = "Oikos (Malden)",
    issn = "0030-1299",
    publisher = "Wiley-Blackwell",
    number = "2",

    }

    Linking habitat structure and orientation in an arboreal species Gehyra variegata (Gekkonidae). / Gruber, B.; Henle, K.

    In: OIKOS, Vol. 107, No. 2, 2004, p. 406-414.

    Research output: Contribution to journalArticle

    TY - JOUR

    T1 - Linking habitat structure and orientation in an arboreal species Gehyra variegata (Gekkonidae)

    AU - Gruber, B.

    AU - Henle, K.

    N1 - cited By 20

    PY - 2004

    Y1 - 2004

    N2 - Understanding how organisms move through landscapes is important for predicting the effects of landscape structure on the population dynamics and spatial distribution of organisms. Despite the accepted importance, the ability to orientate when moving is a poorly studied phenomenon. In this study we report on a translocation experiment in which we used fluorescent powder to study the ability of the arboreal gecko Gehyra variegata to orientate successfully between trees. The relocation experiment demonstrated the ability of translocated geckos to return to the tree of initial capture. Further, we investigated the set of rules geckos employ, when travelling through their structured habitat. Computer simulations relating capture-mark-recapture data to structural components of the habitat revealed that movement rules taking vision into account showed the best fit to the empirical data. The movement rule: "move randomly to one of the three next neighbouring trees that are visible" described the observed movement best. This movement rule connects all trees in the habitat and lowers the predation risk during movement.

    AB - Understanding how organisms move through landscapes is important for predicting the effects of landscape structure on the population dynamics and spatial distribution of organisms. Despite the accepted importance, the ability to orientate when moving is a poorly studied phenomenon. In this study we report on a translocation experiment in which we used fluorescent powder to study the ability of the arboreal gecko Gehyra variegata to orientate successfully between trees. The relocation experiment demonstrated the ability of translocated geckos to return to the tree of initial capture. Further, we investigated the set of rules geckos employ, when travelling through their structured habitat. Computer simulations relating capture-mark-recapture data to structural components of the habitat revealed that movement rules taking vision into account showed the best fit to the empirical data. The movement rule: "move randomly to one of the three next neighbouring trees that are visible" described the observed movement best. This movement rule connects all trees in the habitat and lowers the predation risk during movement.

    U2 - 10.1111/j.0030-1299.2004.12901.x

    DO - 10.1111/j.0030-1299.2004.12901.x

    M3 - Article

    VL - 107

    SP - 406

    EP - 414

    JO - Oikos (Malden)

    JF - Oikos (Malden)

    SN - 0030-1299

    IS - 2

    ER -