"Climate change has negatively – and irreversibly, in some cases – affected ecosystems around the globe. Sadly, though, it is not the only phenomenon that’s altering our natural world.
In 2019, the Intergovernmental Science Policy Platform on Biodiversity and Ecosystem Services (IPBES) Global Assessment Report confirmed invasive alien species as one of the five most important direct drivers of biodiversity loss. The others were climate change, land and sea use, direct exploitation of species, and pollution.
Established in 2012, has 144 member countries. Its major objective is to strengthen the interface between science and policy to conserve and sustainably use biodiversity.
The 2019 assessment found that more than 37 000 alien species had been introduced by many human activities to regions and biomes around the world, most in the past 100 years. A new report by the organisation, focused on alien invasive species, suggests this number is rising fast, with new alien species being recorded at an unprecedented rate of about 200 annually. It also reveals that the global economic cost of invasive alien species exceeded US$423 billion (about R8 057bn) annually. Costs have at least quadrupled every decade since 1970.
But the new report doesn’t just concentrate on problems; it outlines key responses and policy options that governments may take for prevention, early detection and effective control of invasive alien species. Doing so will help to safeguard nature and its contributions to people. This will ensure a better quality of life for all.
I am an invasion biologist whose research focuses on the ecology and management of invasive aquatic plants. Here, I elaborate on the four key messages highlighted by the report that African countries should heed if the continent is to successfully tackle the threats posed by invasive species.
この記事は Farmer's Weekly の October 13, 2023 版に掲載されています。
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この記事は Farmer's Weekly の October 13, 2023 版に掲載されています。
7 日間の Magzter GOLD 無料トライアルを開始して、何千もの厳選されたプレミアム ストーリー、9,000 以上の雑誌や新聞にアクセスしてください。
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More funding needed to flood-proof Olifants River
Western Cape Minister of Agriculture, Economic Development and Tourism Dr Ivan Meyer recently handed over R14,98 million to the Citrusdal Water Users’ Association.
Zambia, Burundi agree to maximise agri potential
In a bid to capitalise on the livestock and arable land in Zambia and Burundi, the two countries have agreed in principle to review the existing bilateral trade agreement in agricultural products under memoranda of understanding (MoUs) and to bolster foreign exchange earnings.
Expanded market brings avocado season success
The South African avocado industry is making headway in India after gaining market access earlier this year. Supported by the World Avocado Organization (WAO), consumers and food businesses in India are being educated about the health benefits of regular avocado consumption and how best to use this fruit in Indian cuisine.
Plan needed to enhance competitiveness of SA's deciduous fruit canning industry
Dr Heinrich Jantjies, group risk, safety and security director at Tiger Brands, says the deciduous fruit canning industry has been on a decline in South Africa since 2016. He suggests implementing a Deciduous Fruit Canning Industry Recovery and Competitive Plan to turn the industry around.
Kruger's memory lingers in his Boekenhoutfontein farmhouses
Lucille Davie visits Kedar Heritage Lodge in North West to see the farmhouses Paul Kruger owned.
From street art to feats of engineering, Bristol has it all
Brian Berkman visits the vibrant UK port city of Bristol and says two days are not enough to explore renowned graffiti artist Banksy's hometown and pop in at all the historical taverns.
Managing broodmares and foals profitably and safely
Broodmares and their foals are at high risk of stress, diseases and injuries if their management is suboptimal, says Dr Mac.
Double cab's leisure features find favour
The GWM P500 2.0T HEV 4x4 Super Luxury AT has launched in South Africa, and the bakkie takes aim at the more premium, leisure-focused offerings from rival brands. Car Magazine's Marius Boonzaier writes.
More fungal diseases that can infect beans
Bill Kerr explains the symptoms of angular leaf spot and anthracnose and how to avoid infection in your fields.
Keeping invasive insects at bay
Featuring an array of delicious fruit from peaches to cherries, stone fruit is attractive to a variety of bugs that can be effectively controlled with integrated pest management, writes Zunel van Eeden.
