By Carla M. D’Antonio (auth.), James O. Luken, John W. Thieret (eds.)
Biological invasion of local plant groups is a high-priority challenge within the box of environmental administration. source managers, biologists, and all these concerned with plant groups needs to contemplate ecological interactions while assessing either the consequences of plant invasion and the long term results of administration. Sections of the ebook hide human perceptions of invading vegetation, evaluate of ecological interactions, direct administration, and law and advocacy. it's also an appendix with descriptive facts for plenty of of the worst weeds.
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Extra info for Assessment and Management of Plant Invasions
Likewise, development of an ecological value threshold can guide research programs by generating testable hypotheses concerning present and future ecological roles and values of NI plants across Charles E. Williams systems. , Brown 1995). The Paradox of Ecological Value: Variation Within and Across Systems Harty (1993) pointed out that most NI plants deliberately introduced into North America and other continents have been promoted for a narrow, utilitarian suite of functions including enhancing wildlife food and cover, landscaping urban and suburban areas, producing wood and fiber, controlling erosion, and improving forage production.
Use of a commonly understood word such as weed or pest to refer to plants troublesome in parks, preserves, and other natural areas may have the added benefit of helping to dispel the all-tao-common belief that these areas are unmanaged. Much of the public is unaware that natural-area management requires more than posting fences, keeping out poachers, and leading tours. 1. Definitions of weed and related terms. a. Definitions of weed A plant not wanted and therefore to be destroyed (Bailey and Bailey 1941).
There are some suites of invasive congeners, however. In North America, for example, several Eurasian thistles (Cirsium) and knapweeds and star-thistles (Centaurea) are now established pests. Plants in the melastome family (Melastomataceae) are so notoriously invasive on islands in the tropical Pacific that the import of any member of this family into Hawaii is now prohibited by law. Adaptive Management of N atural-Area Weeds Determining which plants, if any, should be controlled and setting priorities so that limited time and labor available to do so are used efficiently require a sound management strategy.