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         Étude de cas sur les impacts
    British Virgin Islands English 
    Prédation: The small Indian mongoose has caused the near-extinction of the ground-nesting quail dove (Geotrygon mystacea) in the British Virgin Islands. A study by Small (1982) in the Virgin Islands National Park, showed that 23% of the eggs and hatchlings of 'Critically Endangered (CR)' hawkesbill turtles (Eretmochelys imbricata) were destroyed by mongooses (SPREP, 2000).
    Viti Levu Is. (Fiji) English 
    Prédation: Mongooses are believed to be largely responsible for the extirpation of the two largest skink, Emoia nigra and E. trossula from two of the largest Fijian islands, Viti Levu and Vanua levu. The species which are still to be found on mongoose free islands, disappeared from these islands a few years after the arrival of the mongoose (Hays and Conant 2007). There is circumstantial evidence for implicating the small Indian mongooses in the decline of several species of ground-dwelling birds (Pernetta and Watling 1978); four birds, the 'Least Concern (LC)' buff-banded rail (Gallirallus philippensis), the 'Least Concern (LC)' Spotless crake (Porzana tabuensis), white-browed rail Poliolimnas cinereus and the purple swamp hen (Porphyrio porphyrio which are present on mongoose free islands were extirpated from Fijian islands where mongoose are present (Hays and Conant 2007).
    Fiji English 
    Prédation: Small Indian mongooses are believed to be largely responsible for the extirpation of the two largest skinks, Emoia nigra and E. trossula from two of the largest Fijian islands, Viti Levu and Vanua levu. The species which are still to be found on mongoose free islands, disappeared from these islands a few years after the arrival of the mongoose (Hays and Conant 2007).
    Grenada English 
    Prédation: Chapter III of the 'Inventory and status of the natural and cultural resource base of the The National Parks and Protected Areas System Plan' reports that Garman's ground lizard - Ameiva ameiva or zaggada, a handsome blue coloured lizard, (male) now found only in Grenada and the Grenadines was almost brought to extinction by the mongoose. The red-humped agouti (Dasyprocta liporina) is extinct on the Island due to overhunting and the aggressive mongoose (Beresford Wilcox, Pers. Comm.)
    Guadeloupe français  English 
    Réduction de la biodiversité indigène: La mangouste aurait contribué à la disparition de la chouette des terriers (Speotyto cunicularia), à l’extinction du lézard Ameiva juliae et à la forte régression de deux espèces de couleuvres (Liophis juliae) et Alsophis antillensis) et du scinque mabuya (Mabuya mabuya) (Lorvelec et al., 2004).

    Transmission de maladie: La Mangouste est par ailleurs réservoir et vecteur de formes pathogènes de la bactérie Leptospira interrogans responsable de la leptospirose maladie dont le taux de prévalence en Martinique et Guadeloupe est quarante fois supérieur à celui de la France métropolitaine (Lorvelec et al., 2004).
    Fajou Is. (Guadeloupe) English 
    Prédation: The small Indian mongoose eradication and the sharp decline in the ship rat population, ended the destruction of the 'Critically Endangered (CR)' hawksbill turtle nests (Eretmochelys imbricata), and led to a re-colinisation of the dryer parts of the island by the clapper rail (Rallus longirostris), which had been strictly confined to the mangroves. The abundance indicies of the clapper rail and the terresrial crab Cardisoma guanhumi increased. More data is required to test the actual relationship between these increases and the reduction in alien mammal populations (Lorvelec et al. 2004).
    Amami Is. (Japan) English 
    Agricole: The small Indian mongoose has a large impact on crops (taro, sweet potato, melon, watermelon, loquat, etc.) and poultry in farmland. The economic cost of the damage rapidly in-creased in 1994 (USD7000), 1995 (USD32,000), 1996 (USD64,000), 1997 (USD110,000), 1998 (USD100,000) and 1999 (USD80,000).

    Prédation: The small Indian mongoose has had a predatory impact on native animals in the mountainous areas of the island where it has spread since 1986. Threatened native species that have been recorded in the diet of the mongoose include: the 'Endangered (EN)' Ryukyu rat (Diplothrix legatus); the 'Endangered (EN)' Ryukyu spiny rat (Tokudaia osimensis); the 'Endangered (EN)' Amami rabbit (Pentalagus furnessi); the 'Endangered (EN)' Ryukyu woodcock (Scolopax mira; the 'Vulnerable (VU)' Amami jay (Garrulus lidthi); the 'Near threatened' (NT) Ryukyu robin (Erithacus komadori); reptiles Japalura polygonata, Barbour's Eyelid Skink (Eumeces barbouri), Calliophis japonicus japonicus, Cyclophiops semicarinatus; and the mammal Crocidura horsfieldii watasei (Yamada, 2002).
    Martinique français  English 
    Menace pour les espèces en danger: L’introduction de la mangouste est notamment évoquée comme la source de raréfaction de certaines espèces de l'herpétofaune et d’oiseaux nichant au sol ou à proximité du sol comme le moqueur gorge blanche classé en danger par l’UICN (voir Ramphocinclus brachyurus dans la Liste rouge de l'UICN des espèces menacées).

    Transmission de maladie: La Mangouste est par ailleurs réservoir et vecteur de formes pathogènes de la bactérie Leptospira interrogans responsable de la leptospirose maladie dont le taux de prévalence en Martinique et Guadeloupe est quarante fois supérieur à celui de la France métropolitaine (Lorvelec et al., 2004).
    Hawaii (United States (USA)) English 
    Menace pour les espèces en danger: Small Indian mongooses are known to eat the young of the now 'Extinct in the Wild (EW)' Hawaiian crow (see Corvus hawaiiensis) (Giffen 1983 in Stone 1984) and both eggs and incubating females of the 'Vulnerable (VU)' Nene goose (Branta sandvicensis) (Banko 1982). Mongooses have had severe negative impacts on the the US Endangered Hawaiian Dark-rumped Petrel (Pterodroma phaeopygia sandwichensis) (Baldwin et al 1952) (SPREP, 2000).
    The Draft Revised Recovery Plan for Hawaiian Forest Birds by U.S. Fish and Wildlife Service reports that 21 taxa of endemic birds are threatened in Hawaii. Predation is one of the causes and the mongoose is listed as one of the several predators.
    Virgin Islands, USA English 
    Prédation: Small Indian mongooses caused the near-extinction of the ground-nesting quail dove (Geotrygon mystacea). A study by Small (1982) in the Virgin Islands National Park, showed that 23% of the eggs and hatchlings of 'Critically Endangered (CR)' hawkesbill turtles (Eretmochelys imbricata) were destroyed by mongooses (SPREP, 2000).



ISSG Landcare Research NBII IUCN University of Auckland