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   Rhinella marina (=Bufo marinus) (兩棲動物) English 
生態 分佈 管理 影響 參考資料 聯繫


    此物種詳細資訊 Northern Territory
    狀態: 外來
    入侵:
    出現紀錄: ????????
    來源: Lever, 2001
    到達日期: 1982-1983
    簡介: 自然移入
    此地點的物種說明:
    Cane toads self-introduced to the Northern Territory from neighbouring Queensland. They have continued to expand their range.
    此地點的管理資訊:
    地點註解:
    影響:
    降低本地生物多樣性: 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 The authors conclude, "Collectively, our data and observations, combined with unpublished reports, indicate that: (1) cane toads arrived at our study sites during the wet seasons of 2003–04 and 2004–05; (2) the lizard V. panoptes readily succumbs to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".
    最後修改 : 13/10/2003 10:28:26 a.m.


ISSG Landcare Research NBII IUCN University of Auckland