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   Paspalum vaginatum (草) English   
生态 分布 管理 影响 参考数据 联系


         一般影响

    海雀稗(Paspalum vaginatum)会经由许多方式改变生态系统。它会在咸淡水沼泽和河口,形成致密的单种地面植被,改变本地物种的组成。这可能导致无脊椎动物族群的变化,例如在加拉帕戈斯,它使无脊椎动物族群,从水生族群移向陆生族群(Siemens, 2005),而这反过来又会影响水鸟的觅食地和食物来源。此外,入侵的海雀稗(P. vaginatum)会增加沉积物累积,改变纽西兰河口的水文环境(Shaw and Allen, 2003;格雷姆, 2005a,b)。



         地点特有的影响:
    Galapagos Islands (Ecuador) English 
    栖地改变: Siemens (2005) suggested that high densities of seashore paspalum (Paspalum vaginatum) may exclude fiddler crabs (Uca galapagensis) from lagoon shoreline habitats in the Galapagos Islands.

    生态系统变化: Siemens (2005) showed that in the Galapagos Islands, an invasion of seashore paspalum (Paspalum vaginatum) is associated with a shift from an aquatic to a more terrestrial invertebrate community, and potentially degrades foraging habitat and food resources for waterbirds.
    Isabela Is. (Ecuador) (Ecuador) English 
    生态系统变化: Seashore paspalum (Paspalum vaginatum) appears to dominate in some wetland areas outside the urban perimeter of Puerto Villamil (Isabela Island, Galapagos), affecting water movement and soil moisture content (Guezou et al. 2007).
    New Zealand English 
    生态系统变化: Seashore paspalum (Paspalum vaginatum) has ecological effects similar to cord grass (Spartina spp.) in New Zealand estuaries, but on a much smaller scale. It alters the composition of indigenous vegetation, reduces habitat for shorebirds and fish, and changes sediment accumulation and estuarine hydrology (Shaw and Allen, 2003). Please follow these links to view complete profiles of Spartina alterniflora and Spartina anglica, including management information.
    Coromandel Estuary (New Zealand) English 
    降低本地生物多样性: Seashore paspalum (Paspalum vaginatum) forms dense swards at estuaries in the Waikato (New Zealand) region, displacing native vegetation (Hauraki Gulf Forum, 2004).
    Kawhia Harbour (New Zealand) English 
    生态系统变化: Seashore paspalum (Paspalum vaginatum) acts to trap sediment in Waikato (New Zealand) estuaries, greatly increasing the infilling rate of harbours (Graeme, 2005a).
    Manaia Estuary (New Zealand) English 
    降低本地生物多样性: Seashore paspalum (Paspalum vaginatum) forms dense swards at estuaries in the Waikato (New Zealand) region, displacing native vegetation (Hauraki Gulf Forum, 2004).
    Otahu Estuary (New Zealand) English 
    降低本地生物多样性: Seashore paspalum (Paspalum vaginatum) forms dense swards at estuaries in the Waikato (New Zealand) region, displacing native vegetation (Hauraki Gulf Forum, 2004).
    Port Waikato (New Zealand) English 
    生态系统变化: Seashore paspalum (Paspalum vaginatum) acts to trap sediment in Waikato (New Zealand) estuaries, greatly increasing the infilling rate of harbours (Graeme, 2005a).
    Tairua Estuary (New Zealand) English 
    降低本地生物多样性: Seashore paspalum (Paspalum vaginatum) forms dense swards at estuaries in the Waikato (New Zealand) region, displacing native vegetation (Hauraki Gulf Forum, 2004).
    Whangamata Estuary (New Zealand) English 
    降低本地生物多样性: Seashore paspalum (Paspalum vaginatum) forms dense swards at estuaries in the Waikato (New Zealand) region, displacing native vegetation (Hauraki Gulf Forum, 2004).
    Whangapoua Estuary (New Zealand) English 
    降低本地生物多样性: Seashore paspalum (Paspalum vaginatum) forms dense swards at estuaries in the Waikato (New Zealand) region, displacing native vegetation (Hauraki Gulf Forum, 2004).
    Whitianga Estuary (New Zealand) English 
    降低本地生物多样性: Seashore paspalum (Paspalum vaginatum) forms dense swards at estuaries in the Waikato (New Zealand) region, displacing native vegetation (Hauraki Gulf Forum, 2004).
    Parc National des Oiseaux du Djoudj (Senegal) English 
    生态系统变化: Large areas of previously open water at Djoudj wetlands (Senegal) have become infested with seashore paspalum (Paspalum vaginatum) and Pistia stratiotes.
    The park is internationally important for breeding, staging and wintering waterbirds. The Wetlands International African Waterbird Census has recorded more than 200,000 waterbirds in January every year since 1992 (except 1996), with peaks of over 400,000 in 1992 and 1997. Around 95% of these numbers (i.e. 170,000 or more in most years) are migrant Palearctic wildfowl (Anatidae) (BirdLife International 2007).
    Jozani-Chwaka Bay Proposed National Park (Tanzania, United Republic of) English 
    降低本地生物多样性: Seashore paspalum (Paspalum vaginatum) forms a dense cover to the exclusion of other grasses and herbs in salt marsh swamp grassland in Jozani-Chwaka Bay proposed National Park (Zanzibar, Tanzania) (Nahonyo et al. 2002).
    Hawaii (United States (USA)) English 
    生态系统变化: Seashore paspalum (Paspalum vaginatum) often forms a dense, deep, monodominant groundcover in brackish marshes and along seashores around stream mouths in Hawaii (Englund et al. 2001).



ISSG Landcare Research NBII IUCN University of Auckland