Ongoing invasions of the African clawed frog, Xenopus laevis: a global review

Measey, John; Rödder, Dennis; Green, S. L.; Kobayashi, Ryota; Lillo, Francesco; Lobos, Gabriel; Rebelo, Rui; Thirion, Jean‐Marc

doi:10.1007/s10530-012-0227-8

Cited by 118 publications

(165 citation statements)

References 72 publications

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“…The use of X. laevis as a model system in developmental and cellular biology (Gurdon and Hopwood, 2000) has resulted in the presence of this species in laboratories world-wide. Invasive populations of X. laevis have since become established globally as a result of accidental as well as voluntary releases from research facilities and through the release of animals from the pet trade (Measey et al, 2012). Despite a growing body of literature on the invasion range and the impacts of this species on autochthonous ecosystems (Lafferty and Page, 1997;Lillo et al, 2005Lillo et al, , 2011Lobos and Jaksic, 2005;Eggert and Fouquet, 2006;Fouquet and Measey, 2006;Robert et al, 2007;Faraone et al, 2008;Rebelo et al, 2010;Measey et al, 2012;De Busschere et al, 2016), this species has never been used to test the predictions of dispersal models.…”

Section: Introductionmentioning

confidence: 99%

Differences in mobility at the range edge of an expanding invasive population of Xenopus laevis in the west of France

Louppe¹,

Courant²,

Herrel³

2017

Journal of Experimental Biology

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Theoretical models predict that spatial sorting at the range edge of expanding populations should favor individuals with increased mobility relative to individuals at the center of the range. Despite the fact that empirical evidence for the evolution of locomotor performance at the range edge is rare, data on cane toads support this model. However, whether this can be generalized to other species remains largely unknown. Here, we provide data on locomotor stamina and limb morphology in individuals from two sites: one from the center and one from the periphery of an expanding population of the clawed frog Xenopus laevis in France where it was introduced about 30 years ago. Additionally, we provide data on the morphology of frogs from two additional sites to test whether the observed differences can be generalized across the range of this species in France. Given the known sexual size dimorphism in this species, we also test for differences between the sexes in locomotor performance and morphology. Our results show significant sexual dimorphism in stamina and morphology, with males having longer legs and greater stamina than females. Moreover, in accordance with the predictions from theoretical models, individuals from the range edge had a greater stamina. This difference in locomotor performance is likely to be driven by the significantly longer limb segments observed in animals in both sites sampled in different areas along the range edge. Our data have implications for conservation because spatial sorting on the range edge may lead to an accelerated increase in the spread of this invasive species in France.

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Section: Introductionmentioning

confidence: 99%

Differences in mobility at the range edge of an expanding invasive population of Xenopus laevis in the west of France

Louppe¹,

Courant²,

Herrel³

2017

Journal of Experimental Biology

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“…This has resulted in invasive populations on four continents (Measey et al, 2012) and the suggestion that climate-change may increase invasion success in Europe (Ihlow et al, 2016). Surprisingly, the ecology of X. laevis is better studied in invasive populations than in their native range, and this lack of ecological data from the native range is problematic as it stymies interpretation of invasive studies.…”

Section: Introductionmentioning

confidence: 99%

Overland movement in African clawed frogs (Xenopus laevis): a systematic review

Measey

2016

PeerJ

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African clawed frogs (Xenopus laevis) are often referred to as ‘purely aquatic’ but there are many publications which suggest extensive overland movements. Previous reviews which considered the topic have not answered the following questions: (1) is there evidence for overland dispersal in native and invasive ranges; (2) what is the range of distances moved overland; (3) when does overland movement occur; and (4) is there evidence of breeding migratory behaviour? A systematic review was chosen to synthesise and critically analyse all literature on the overland movement in Xenopus laevis. Database searches resulted in 57 documents which revealed a paucity of empirical studies, with 28 containing no data, and 19 having anecdotal content. Overwhelming evidence shows that both native and invasive populations of X. laevis move overland, with well documented examples for several other members of the genus (X. borealis, X. gilli, X. muelleri, X. fraseriand X. tropicalis). Reports of distances moved overland were from 40 m to 2 km, with no apparent difference between native and invasive ranges. Overland movements are not confined to wet seasons or conditions, but the literature suggests that moving overland does not occur in the middle of the day. Migrations to temporary water-bodies for breeding have been suggested, but without any corroborating data.

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“…Areas above the MTP were referred as suitable, whereas areas above TP10 were considered optimal for B . carambolae [41]. …”

Section: Methodsmentioning

confidence: 99%

Global Potential Distribution of Bactrocera carambolae and the Risks for Fruit Production in Brazil

Marchioro

2016

PLoS ONE

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The carambola fruit fly, Bactrocera carambolae, is a tephritid native to Asia that has invaded South America through small-scale trade of fruits from Indonesia. The economic losses associated with biological invasions of other fruit flies around the world and the polyphagous behaviour of B. carambolae have prompted much concern among government agencies and farmers with the potential spread of this pest. Here, ecological niche models were employed to identify suitable environments available to B. carambolae in a global scale and assess the extent of the fruit acreage that may be at risk of attack in Brazil. Overall, 30 MaxEnt models built with different combinations of environmental predictors and settings were evaluated for predicting the potential distribution of the carambola fruit fly. The best model was selected based on threshold-independent and threshold-dependent metrics. Climatically suitable areas were identified in tropical and subtropical regions of Central and South America, Sub-Saharan Africa, west and east coast of India and northern Australia. The suitability map of B. carambola was intersected against maps of fruit acreage in Brazil. The acreage under potential risk of attack varied widely among fruit species, which is expected because the production areas are concentrated in different regions of the country. The production of cashew is the one that is at higher risk, with almost 90% of its acreage within the suitable range of B. carambolae, followed by papaya (78%), tangerine (51%), guava (38%), lemon (30%), orange (29%), mango (24%) and avocado (20%). This study provides an important contribution to the knowledge of the ecology of B. carambolae, and the information generated here can be used by government agencies as a decision-making tool to prevent the carambola fruit fly spread across the world.

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Ongoing invasions of the African clawed frog, Xenopus laevis: a global review

Cited by 118 publications

References 72 publications

Differences in mobility at the range edge of an expanding invasive population of Xenopus laevis in the west of France

Differences in mobility at the range edge of an expanding invasive population of Xenopus laevis in the west of France

Overland movement in African clawed frogs (Xenopus laevis): a systematic review

Global Potential Distribution of Bactrocera carambolae and the Risks for Fruit Production in Brazil

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