Read more about the article Preying on alien species
The alien invasive Mediterranean mussel (Mytilus Galloprovincialis) was first recorded in the late 1970s and has now invaded more than 2000 km of the South African coastline. (Photo credit: Sophia Turner)

Preying on alien species

When we consider how invasive alien species affect native species, we mainly think of alien predators preying on native species. However, there are examples of native species that prey on alien species - which leads ecologists to the question “what are the effects of alien prey on predatory-prey relationships?”

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Read more about the article Native predators avoid eating an invading alien barnacle
A dense settlement of the alien barnacle Balanus glandula on a rocky shore near Elands Bay. (Photo credit: Tammy Robinson)

Native predators avoid eating an invading alien barnacle

The alien barnacle Balanus glandula has been rapidly spreading down the South African west coast and recently moved east around Cape Point. This left researchers wondering how it is able to spread so far and why it is spreading so fast.

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