Being mycorrhizal is important for the persistence and spread of alien plants
Canadian poplar (Populus Canadensis) was one of the alien tree species considered in the study. (Photo credit: Wikimedia Creative Commons)

Being mycorrhizal is important for the persistence and spread of alien plants

A “mycorrhiza” is a relationship between a fungus and the roots of a plant. The fungus lives inside the plant roots, and increases the roots’ efficiency in absorbing nutrients from the soil. In such a relationship, both the plants and the fungi, are said to be mycorrhizal and this relationship between plant roots and its associated fungi (“mycorrhizal fungi”) is, amongst other things, important for plant growth.

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Africa’s first armoured catfish invasion
A juvenile vermiculated sailfin catfish sampled from the Nseleni River.

Africa’s first armoured catfish invasion

The South American armoured catfish family Loricariidae includes more than 700 nominal species. Some are popular aquarium fishes in the global pet trade. Releases by aquarists and escape from fish farms have resulted in several armoured catfish invasions in Central and North America, Asia and now, Africa.

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