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Bachelor Thesis from the year 2019 in the subject Biology - Botany, grade: A, , course: Biology, language: English, abstract: This study reviews the utilization of alien plant invaders in Nigeria, with a view to recommending these plants to Nigerians considering their utilization potential. The overall aim of this research project is reflected in the following research questions: How does educational awareness have impact on the utilization of plant invaders? What was the utilization of alien plants invasions? How does climate change and variability aid the invasion of alien species? How do alien plant invaders affect the economic, recreational and environmental uses? Invasive alien species have been introduced to Nigeria from different parts of the world both intentionally and unintentionally and they are affecting indigenous plants and animal communities. The intentional spread has been a result of ongoing and increasing human redistribution of species to support agriculture, forestry, mariculture, horticulture and recreation. This supplies a continuous pool of species from which invasive aliens are recruited. The invasive alien species were also introduced as commercial plants or ornamental garden plants. Invasions also occurred countrywide as a result of seed introductions, of tree and shrub clearing for pasture and grazing infestations. The unintentional introductions of IAPs include disease organisms, agricultural weeds and insect pests. However, they were broughtwithout their natural enemies, which results in these plants reproducing copiously.
Invasive alien species are a major threat to biodiversity and ecosystems throughout the world. In India, a country with four of the world's most important 'biodiversity hotspots', the invasion of alien plants means risking a national ecological disaster with major social and economic consequences. Currently, there is insufficient information about invasive alien plants; their distribution, rate of spread and adaptability to new environments. This book reveals existing and potential invaders, evaluates the level of risk they pose to native species and suggests steps to manage spread and limit damage. Invaluable to policy-makers, this book is also required reading for researchers of invasive plants worldwide.
INVASIVE ALIEN SPECIES Invasive Alien Species: Observations and Issues from Around the World Volume 1: Issues and Invasions in Africa Invasive alien species are spreading into new ecosystems each year. The impacts caused by these invaders can be swift and devastating. The topic of invasive alien species is large, complex, and globally significant at various scales, exacerbated by the globalization of world economies and increased trade and commerce that has overcome natural barriers to species movement. Invasive alien species threaten global food supplies, water quality and availability, and energy production and delivery. With the added risks associated with global climate change, the global homogenization of plants, animals, and microbes is a major factor in the decline in ecosystem health and ecosystem services worldwide. To counter this trend, there is a critical need to unify governments, cultures, and programs to improve cross-boundary coordination to effectively address the wide range of invasive alien species threats to the environment, economies, and to plant and animal health; particularly human health. This 4-volume work is the first to compile a set of useful material for key topics, to provide a better understanding of the overall global threat of invasive alien species and the diverse array of problems faced around the world, and assemble material that includes potential replicable solutions to overcome these threats. The books also highlight the threat posed by invasive alien species in terms of a global ‘call to action’. Since invasive species know no boundaries, it is our hope that by compiling material from different scientific and social perspectives around the world, and sharing knowledge and examples of a diverse array of associated topics, we can advance global awareness and improve unified national responses to the threat posed by invasive alien species.
The Alien Plant Working Group of the Plant Conservation Alliance, located in Washington, D.C., offers fact sheets about the impact and threat of herbs that are alien plants to the natural ecosystems of the United States. The fact sheets include a description of the native range, habitat, and ecological threat of alien herbs, as well as a discussion of their distribution and management approaches in the United States.
"Invasive Species in a Changing World provides readers with the background and knowledge they need to begin developing strategies to combat the invasive species problem, and it is essential reading for anyone concerned with the impact of invasive species on ecosystem health and functioning."--BOOK JACKET.
‘The story of “invasive species” is really the story of human history, and Eatherley tells it with great verve ... Fascinating’ Daily Telegraph A unique history of plant and animal invaders of the British isles spanning thousands of years of arrivals and escapes, as well as defences mounted and a look to the future.
A practical guide to the protection and management of ecosystems against invasions by non-indigenous plant species. The authors seek to offer an accessible account of the subject and how to protect natural habitats. The majority of countries suffer from invasive plants and there are case studies from North America, Europe, Australia, South and South East Asia and the Pacific and Atlantic islands. There is also a list of invasive species, with their countries of origin and regions of introduction.
Based on a selection of papers presented at the Norway/UN Conference on Alien Species, Trondheim, Norway