Threat or invasive status in legumes is related to opposite extremes of the same ecological and life-history attributes

Corey Bradshaw, X Giam, H Tan, B BROOK, N K SODHI

    Research output: Contribution to journalArticleResearchpeer-review

    Abstract

    1. The urgency and scale of the global biodiversity crisis requires the application of generalized predictors of a species' likelihood of going extinct or becoming invasive in non-native areas. A common approach is to correlate species' ecological and life-history characteristics (attributes, traits) with the probability of becoming either threatened (responding negatively to human activity), or invasive (responding positively). The limitation of previous studies is that the fates of becoming threatened or invasive have generally been treated in isolation. 2. Here we consider the problem of threat and invasiveness in unison based on analysis of one of the largest-ever species attributes data bases (8906 species) compiled for a single plant family (Fabaceae). We used generalized linear mixed-effects models (using taxonomic grouping to control for within-family phylogenetic relationships) to correlate species' life-history and ecological traits to three response variables: probability of being (i) threatened or not, (ii) invasive or not, and (iii) threatened or invasive. 3. We found that tall, annual, range-restricted species with tree-like growth forms, inhabiting closed-forest and lowland sites are more likely to be threatened. Conversely, climbing and herbaceous species that naturally span multiple floristic kingdoms and habitat types are more likely to become invasive. 4. Synthesis. These results support the idea that at least for one of the richest plant families, species' life-history and ecological traits correlate with a fate response to anthropogenic global change. Our results show that species do demonstrate particular susceptibility to either fate based on their evolved traits, and that traits generally correlated with invasiveness are also those that correlate with a reduced probability of becoming threatened. � 2008 The Authors.
    Original languageEnglish
    Pages (from-to)869-883
    Number of pages15
    JournalJournal of Ecology
    Volume96
    Issue number5
    Publication statusPublished - 2008

    Fingerprint

    life history
    legumes
    global change
    Fabaceae
    lowlands
    invasiveness
    biodiversity
    synthesis
    phylogeny
    phytogeographical region
    habitats
    attribute
    growth form
    habitat type
    human activity
    phylogenetics
    family

    Cite this

    Bradshaw, Corey ; Giam, X ; Tan, H ; BROOK, B ; SODHI, N K. / Threat or invasive status in legumes is related to opposite extremes of the same ecological and life-history attributes. In: Journal of Ecology. 2008 ; Vol. 96, No. 5. pp. 869-883.
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    Threat or invasive status in legumes is related to opposite extremes of the same ecological and life-history attributes. / Bradshaw, Corey; Giam, X; Tan, H; BROOK, B; SODHI, N K.

    In: Journal of Ecology, Vol. 96, No. 5, 2008, p. 869-883.

    Research output: Contribution to journalArticleResearchpeer-review

    TY - JOUR

    T1 - Threat or invasive status in legumes is related to opposite extremes of the same ecological and life-history attributes

    AU - Bradshaw, Corey

    AU - Giam, X

    AU - Tan, H

    AU - BROOK, B

    AU - SODHI, N K

    PY - 2008

    Y1 - 2008

    N2 - 1. The urgency and scale of the global biodiversity crisis requires the application of generalized predictors of a species' likelihood of going extinct or becoming invasive in non-native areas. A common approach is to correlate species' ecological and life-history characteristics (attributes, traits) with the probability of becoming either threatened (responding negatively to human activity), or invasive (responding positively). The limitation of previous studies is that the fates of becoming threatened or invasive have generally been treated in isolation. 2. Here we consider the problem of threat and invasiveness in unison based on analysis of one of the largest-ever species attributes data bases (8906 species) compiled for a single plant family (Fabaceae). We used generalized linear mixed-effects models (using taxonomic grouping to control for within-family phylogenetic relationships) to correlate species' life-history and ecological traits to three response variables: probability of being (i) threatened or not, (ii) invasive or not, and (iii) threatened or invasive. 3. We found that tall, annual, range-restricted species with tree-like growth forms, inhabiting closed-forest and lowland sites are more likely to be threatened. Conversely, climbing and herbaceous species that naturally span multiple floristic kingdoms and habitat types are more likely to become invasive. 4. Synthesis. These results support the idea that at least for one of the richest plant families, species' life-history and ecological traits correlate with a fate response to anthropogenic global change. Our results show that species do demonstrate particular susceptibility to either fate based on their evolved traits, and that traits generally correlated with invasiveness are also those that correlate with a reduced probability of becoming threatened. � 2008 The Authors.

    AB - 1. The urgency and scale of the global biodiversity crisis requires the application of generalized predictors of a species' likelihood of going extinct or becoming invasive in non-native areas. A common approach is to correlate species' ecological and life-history characteristics (attributes, traits) with the probability of becoming either threatened (responding negatively to human activity), or invasive (responding positively). The limitation of previous studies is that the fates of becoming threatened or invasive have generally been treated in isolation. 2. Here we consider the problem of threat and invasiveness in unison based on analysis of one of the largest-ever species attributes data bases (8906 species) compiled for a single plant family (Fabaceae). We used generalized linear mixed-effects models (using taxonomic grouping to control for within-family phylogenetic relationships) to correlate species' life-history and ecological traits to three response variables: probability of being (i) threatened or not, (ii) invasive or not, and (iii) threatened or invasive. 3. We found that tall, annual, range-restricted species with tree-like growth forms, inhabiting closed-forest and lowland sites are more likely to be threatened. Conversely, climbing and herbaceous species that naturally span multiple floristic kingdoms and habitat types are more likely to become invasive. 4. Synthesis. These results support the idea that at least for one of the richest plant families, species' life-history and ecological traits correlate with a fate response to anthropogenic global change. Our results show that species do demonstrate particular susceptibility to either fate based on their evolved traits, and that traits generally correlated with invasiveness are also those that correlate with a reduced probability of becoming threatened. � 2008 The Authors.

    KW - anthropogenic effect

    KW - biological invasion

    KW - climbing plant

    KW - endangered species

    KW - evolution

    KW - extinction

    KW - floristics

    KW - human activity

    KW - invasive species

    KW - legume

    KW - life history trait

    KW - Red List

    KW - Fabaceae

    M3 - Article

    VL - 96

    SP - 869

    EP - 883

    JO - Journal of Ecology

    JF - Journal of Ecology

    SN - 0022-0477

    IS - 5

    ER -