Final answer:
When the comb jelly, Mnemiopsis leidyi, was introduced into the Black Sea, it led to a decline in native species population and overall biodiversity. Similarly, the introduction of feral pigs and water hyacinth as invasive species can disrupt ecosystems and decrease biodiversity.
Step-by-step explanation:
When the comb jelly, Mnemiopsis leidyi, was accidentally introduced into the Black Sea, it had a significant impact on the ecosystem. The comb jelly had no natural predators in the Black Sea, allowing it to reproduce rapidly and consume large amounts of plankton. This led to a decline in the population of native species, especially fish larvae, which had a direct impact on the food chain and overall biodiversity of the Black Sea.
Similarly, the introduction of a feral pig can also have negative consequences on an ecosystem. Feral pigs are known to dig up soil, uproot vegetation, and eat the eggs of ground-nesting birds and reptiles. They also compete with native wildlife for food and disrupt natural ecosystem processes. Likewise, the water hyacinth, an invasive aquatic plant, can form dense mats on the surface of water bodies, blocking sunlight and oxygen from reaching other organisms in the water. This can lead to a decrease in biodiversity and disrupt the balance of the ecosystem.
Learn more about impact of invasive species on ecosystems