Rhinella marina (=Bufo marinus) (amphibien)

Écologie Distribution Gestion Impacts Références et liens Contacts

Étude de cas sur les impacts Hispaniola Is. (Atlantic Ocean)   Prédation: Bufo marinus are implicated in the decline of Hispaniola's amphibians. Maningrida (Australia)   Autre: There is concern that the predation of Bufo marinus on native species may affect the ability of the indigenous Aboriginal people to collect traditional food sources. Prédation: Bufo marinus preys upon native animal species. Northern Territory (Australia)   Réduction de la biodiversité indigène: Doody et al (2006) provided evidence of the direct impact of cane toads on the yellow-spotted monitor lizard (Varanus panoptes) and indirect impact on nest predation of the pig-nosed turtle (see Carettochelys insculpta in IUCN Red List of Threatened Species) eggs. The yellow-spotted monitor lizard and cane toads were surveyed for five years at two sites along the Daly River, Northern Territory, before and after the arrival of cane toads. Pig-nosed turtle nest predation was also surveyed for three years before, and one year after, the arrival of the toads. The authors conclude, "Collectively, our data and observations, combined with unpublished reports, indicate that: (1) cane toads arrived at our study sites during the wet seasons of 2003–04 and 2004–05; (2) the lizard V. panoptes readily succumbs to cane toad toxins; (3) V. panoptes has experienced a marked decline in relative population numbers coincident with the arrival of the toads at the site; and (4) V. panoptes has been reduced to such low numbers that it is currently no longer a significant predator of pig-nosed turtle (C. insculpta) eggs". Gordonvale (Australia)   Prédation: Bufo marinus preys upon native animal species. Bermuda   Menace pour les espèces en danger: Bufo marinus is implicated in decline of the 'Critically Endangered (CR)' Bermudian Skink (see Eumeces longirostris in IUCN Red List of Threatened Species) (Davenport et al., 2001 in Varnham, 2006). Nuisance pour les personnes: Bufo marinus create nusiance by drowning in domestic water tanks and polluting water supply (Varnham, 2006). 'Living Museum' Nature Reserve (Bermuda)   Menace pour les espèces en danger: Bufo marinus have been implicated in the decline of the endemic Bermuda skink (see Eumeces longirostris in IUCN Red List of Threatened Species). Dominican Republic   Prédation: Bufo marinuss are implicated in the decline of Hispaniola's amphibians. Viwa Is. (Fiji)   Compétition: The abundant Bufo marinus is likely to compete with the native Fijian ground frog (see Platymantis vitiana in IUCN Red List of Threatened species) for food. Prédation: Bufo marinus is also likely to prey on juvenile and adult Fijian ground frogs. Grenada   Transmission de maladie: Bufo marinus have been implicated as being reservoirs for the bacteria Leptospira interrogans, which causes Weil's disease (infectious jaundice) in humans. Guam   Réduction de la biodiversité indigène: Bufo marinus have been implicated in the decline of populations of monitor lizards in Guam (Jackson 1962, Dryden 1965 in SPREP, 2000). Chichi-jima Is. (Japan)   Altération d'habitat: Pollution of the freshwater supply by Bufo marinus eggs and tadpoles. Prédation: Predation upon the indigenous terrestrial fauna. Iriomotejima Is. (Japan)   Autre: Iriomote cats (Prionailurus iriomotensis) may possibly be poisoned when trying to eat Bufo marinus. Montserrat   Réduction de la biodiversité indigène: Bufo marinus may compete with, predate or poison native frog (possesses numerous poison glands). It is also likely to heavily predate upon native invertebrates (Daltry et al., undated in Varnham, 2006). Buka Is. (PNG) (Papua New Guinea)   Autre: Indigenous predators (snakes and the water monitor) are poisoned when trying to eat Bufo marinus. Philippines   Prédation: Villadolid (1956) found rats and mice in stomachs of Bufo marinus in the Philippine Islands. Gavutu Is. (Solomon Islands)   Autre: Indigenous predators (snakes and the water monitor) are poisoned when trying to eat Bufo marinus. Guadalcanal Is. (Solomon Islands)   Autre: Indigenous predators (snakes and the water monitor) are poisoned when trying to eat Bufo marinus. Malaita Is. (Solomon Islands)   Autre: Indigenous predators (snakes and the water monitor) are poisoned when trying to eat Bufo marinus. Banika Is. (Solomon Islands)   Autre: Indigenous predators (snakes and the water monitor) are poisoned when trying to eat Bufo marinus. Vanikoro Is. (Solomon Islands)   Autre: Indigenous predators (snakes and the water monitor) are poisoned when trying to eat Bufo marinus.