Relationships among non-native plants, diversity of plants and butterflies, and adequacy of spatial sampling

Erica Fleishman, R. Mac Nally, Danielle Murphy

    Research output: Contribution to journalArticle

    26 Citations (Scopus)

    Abstract

    Non-native invasive species are altering ecosystems in undesirable ways, often leading to biotic homogenization and rapid reduction of evolutionary potential. However, lack of money and time hampers attempts to monitor the outcome of restoration efforts. Hence, it is useful to determine whether relatively limited sampling can provide valid inferences about biological responses to pattern-based and process-based variables that are affected by restoration actions. In the Mojave Desert, invasion of salt-cedar (Tamarix ramosissima) has altered vegetational communities and some measures of faunal diversity. We tested whether six vegetation-based predictor variables affected species richness of butterflies in the Muddy River drainage (Nevada, USA). We also explored whether similar conclusions about relationships between vegetation and butterflies could have been obtained by using data from a subset of the 85 locations included in the study. We found that the effect of non-native plants on species richness of butterflies was negligible. Availability of nectar had the greatest independent explanatory power on species richness of butterflies, followed by species richness of plants. In comparison with the full data set, subsamples including 10, 25 and 50% of sites yielded similar conclusions. Our results suggest that relatively limited data sets may allow us to draw reliable inferences for adaptive management in the context of ecological restoration and rehabilitation.
    Original languageEnglish
    Pages (from-to)157-166
    Number of pages10
    JournalBiological Journal of the Linnean Society
    Volume85
    Issue number2
    DOIs
    Publication statusPublished - 2005

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    butterfly
    butterflies
    species richness
    species diversity
    ecological restoration
    sampling
    Tamarix ramosissima
    Mojave Desert
    Tamarix
    vegetation
    adaptive management
    nectar
    homogenization
    invasive species
    drainage
    desert
    salt
    rivers
    ecosystems
    ecosystem

    Cite this

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    title = "Relationships among non-native plants, diversity of plants and butterflies, and adequacy of spatial sampling",
    abstract = "Non-native invasive species are altering ecosystems in undesirable ways, often leading to biotic homogenization and rapid reduction of evolutionary potential. However, lack of money and time hampers attempts to monitor the outcome of restoration efforts. Hence, it is useful to determine whether relatively limited sampling can provide valid inferences about biological responses to pattern-based and process-based variables that are affected by restoration actions. In the Mojave Desert, invasion of salt-cedar (Tamarix ramosissima) has altered vegetational communities and some measures of faunal diversity. We tested whether six vegetation-based predictor variables affected species richness of butterflies in the Muddy River drainage (Nevada, USA). We also explored whether similar conclusions about relationships between vegetation and butterflies could have been obtained by using data from a subset of the 85 locations included in the study. We found that the effect of non-native plants on species richness of butterflies was negligible. Availability of nectar had the greatest independent explanatory power on species richness of butterflies, followed by species richness of plants. In comparison with the full data set, subsamples including 10, 25 and 50{\%} of sites yielded similar conclusions. Our results suggest that relatively limited data sets may allow us to draw reliable inferences for adaptive management in the context of ecological restoration and rehabilitation.",
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    Relationships among non-native plants, diversity of plants and butterflies, and adequacy of spatial sampling. / Fleishman, Erica; Mac Nally, R.; Murphy, Danielle.

    In: Biological Journal of the Linnean Society, Vol. 85, No. 2, 2005, p. 157-166.

    Research output: Contribution to journalArticle

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