Species level traits determine positive and negative population impacts of invasive cane toads on native squamates

Verfasser / Beitragende:
[Benjamin Feit, Mike Letnic]
Ort, Verlag, Jahr:
2015
Enthalten in:
Biodiversity and Conservation, 24/5(2015-05-01), 1017-1029
Format:
Artikel (online)
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024 7 0 |a 10.1007/s10531-014-0850-z  |2 doi 
035 |a (NATIONALLICENCE)springer-10.1007/s10531-014-0850-z 
245 0 0 |a Species level traits determine positive and negative population impacts of invasive cane toads on native squamates  |h [Elektronische Daten]  |c [Benjamin Feit, Mike Letnic] 
520 3 |a The novel interactions posed by invasive species can have complex effects on ecosystems owing to both their direct and indirect effects on other species. Consequently, the effects of invasive species can be hard to forecast owing to the diversity of interaction-pathways and number of species they can potentially affect. Ultimately, the strength and direction of an invader's inter-specific effects will be determined by both the traits of the invader and the species they interact with. The cane toad (Rhinella marina) is a highly successful invasive species that poses a serious threat to ecosystem integrity in tropical Australia. Reptilian predators have been particularly affected by the invasion of cane toads because toads possess toxins that are novel to native Australian predators. We used a meta-regression approach to explore how cane toads' impacts on Australian squamates are modulated by their phylogenetic, behavioural and morphological traits. Species primarily foraging in riparian and terrestrial habitats tended to decline in abundance while population sizes of arboreal squamates might have increased following toad arrival. The negative impact of cane toads on anurophagous squamates scaled with gape size and body mass. Squamate species with smaller heads or body mass tended to increase in abundance while species with larger heads or body mass tended to decline. Our study provides insight into the complexity of impacts that invasive species can have on native species assemblages and highlights how morphological and behavioural factors can mediate the impact of invasive on native species. 
540 |a Springer Science+Business Media Dordrecht, 2014 
690 7 |a Behavioral traits  |2 nationallicence 
690 7 |a Invasive species  |2 nationallicence 
690 7 |a Meta-regression analysis  |2 nationallicence 
690 7 |a Morphological traits  |2 nationallicence 
690 7 |a Rhinella marina  |2 nationallicence 
700 1 |a Feit  |D Benjamin  |u Hawkesbury Institute for the Environment, University of Western Sydney, Locked Bag 1791, 2751, Penrith, NSW, Australia  |4 aut 
700 1 |a Letnic  |D Mike  |u Centre for Ecosystem Science, University of New South Wales, 2052, Sydney, NSW, Australia  |4 aut 
773 0 |t Biodiversity and Conservation  |d Springer Netherlands  |g 24/5(2015-05-01), 1017-1029  |x 0960-3115  |q 24:5<1017  |1 2015  |2 24  |o 10531 
856 4 0 |u https://doi.org/10.1007/s10531-014-0850-z  |q text/html  |z Onlinezugriff via DOI 
898 |a BK010053  |b XK010053  |c XK010000 
900 7 |a Metadata rights reserved  |b Springer special CC-BY-NC licence  |2 nationallicence 
908 |D 1  |a review-article  |2 jats 
949 |B NATIONALLICENCE  |F NATIONALLICENCE  |b NL-springer 
950 |B NATIONALLICENCE  |P 856  |E 40  |u https://doi.org/10.1007/s10531-014-0850-z  |q text/html  |z Onlinezugriff via DOI 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Feit  |D Benjamin  |u Hawkesbury Institute for the Environment, University of Western Sydney, Locked Bag 1791, 2751, Penrith, NSW, Australia  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Letnic  |D Mike  |u Centre for Ecosystem Science, University of New South Wales, 2052, Sydney, NSW, Australia  |4 aut 
950 |B NATIONALLICENCE  |P 773  |E 0-  |t Biodiversity and Conservation  |d Springer Netherlands  |g 24/5(2015-05-01), 1017-1029  |x 0960-3115  |q 24:5<1017  |1 2015  |2 24  |o 10531