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   Rattus norvegicus (mammal)
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    Details of this species in Sao Tome and Principe
    Status: Alien
    Invasiveness: Uncertain
    Occurrence: Reported
    Source: Dutton,1994
    Arrival Date: after 1700
    Introduction:
    Species Notes for this Location:
    Rattus norvegicus would have reached Sao Tome and Principe sometime after 1700.
    Management Notes for this Location:
    Location Notes:
    Impacts:
    Predation: The Guinea Lidless Skink (see Afroablepharus africana) is classified as 'Vulnerable (VU)' in the IUCN Red List of Threatened Species. It is restricted to three location on the islands of Sâo Tomé, Principé, and Rolas in the Gulf of Guinea. The main threats to this species are suspected to be loss of habitat through deforestation and predation by introduced mammals. Introduced mammals on these islands include the African civet (Civettictis civetta), Norway rat (Rattus norvegicus), ship rat (Rattus rattus), house mouse (Mus musculus), Mona monkey (Cercopithecus mona) and weasel (Mustela nivalis) (Ineich 2010).
    Predation: Declining populations of three endemic and 'Critically Endangered (CR)' birds the Sao Tome Ibis (see Bostrychia bocagei); the Sao Tome Canary (see Neospiza concolor) and the Sao Tome Fiscal (see Lanius newtoni) are under threat of loss of habitat and potential predation by introduced mammals that include the African civet (Civettictis civetta), ship rat (Rattus rattus), house mouse (Mus musculus), Mona monkey (Cercopithecus mona) and weasel (Mustela nivalis) (BirdLife International 2009; BirdLife International 2010; BirdLife International 2011). Feral pigs are also present and could be a threat (BirdLife International 2010).
    Last Modified: 25/08/2006 2:33:00 p.m.


ISSG Landcare Research NBII IUCN University of Auckland