Acacia mearnsii De Wilde (black wattle) is native to Australia, and is listed as being among ‘‘100 of the world’s worst invasive alien species” by the World Conservation Union (Lowe et al. Website developed by The University of Georgia - Center for Invasive Species and Ecosystem Health and the National Park Service Dennill GB, Donnelly D, Stewart K, Impson FAC (1999) Insect agents used for the biological control of Australian Acacia species and Paraserianthes lophanta (Willd.) Invasive Listing Sources. A. mearnsii De Wild. Acacia mearnsii has been shown to contain less than 0.02% alkaloids. invasive Wagner, Warren L./Herbst, Derral R./Sohmer, S. H. (1999) (pp. 2000; Luque et al. The World Conservation Union has included this species in their list of 100 of the world's worst invasive species, one of only 32 terrestrial species so singled out. Nielsen (Fabaceae) in South Africa. Global Invasive Species Database (2012) Acacia mearnsii. The species has already been dissemi-nated globally for more than 150 years owing to its multiple uses (e.g., leather, res- ... Black Wattle (Acacia mearnsii) has become naturalized in Hawaii and California. Invasive But Native: the paradox of managing native species as weeds. The total area invaded, including those of localized and widespread species, although difficult to estimate, could be up to 350 000 ha. Acacia mearnsii black wattle This plant can be weedy or invasive according to the authoritative sources noted below.This plant may be known by one or more common names in … 2014). Invasion of native South African woodlands by introduced Acacia mearnsii is becoming a serious problem. Acacia mearnsii de Wildeman. Acacia mearnsii is a vigorous, nitrogen fixing species that has precocious and prolific seed production, with a high density and accumulation of long-lived seeds in the soil, and a variety of potential dispersal mechanisms including water, mammals and possibly birds. A. pycnantha Bentham A. pycnantha Bentham A. karrooHayne 1. Parallels have been drawn with the use of potentially invasive exotic plantation species. A. mearnsii De Wild. About This Subject; View Images Details ... For more information, visit www.eddmaps.org. 642-643) State of Hawaii Hawaiian Islands Moloka‘i Island introduced invasive Hughes, Guy D'Oyly (1995) (p. 5) Voucher cited: Hughes 51 (US) Rapidly spreading, forming monotypic stands, and displacing native species, below 850 m elevation. For example, fast-growing exotic Acacia species are being planted outside their native ranges for pulp and biomass production. Jil M. Swearingen, Survey of invasive plants occurring on National Park Service lands, 2000-2007 John Randall, The Nature Conservancy, Survey of TNC Preserves, 1995. Posted on September 7, 2020 by Biodiversity Conservation Blog Over 30 years ago the wattle (specifically Acacia pycnantha ) was declared the official Australian national floral emblem. Based on the two most invasive tree species, Pinus patula and Acacia mearnsii, the invaded or potentially invadable area in Zimbabwe is about 200 000 ha, most of which is in the eastern highlands of Zimbabwe. State of Hawaii African Entomology: Memoir no.1: 45-54.
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