If the beetle were removed from the web, there would likely be an increase in the population of algae. This is because the beetle is a predator of the algae, feeding on them as a source of food. Without the beetle preying on them, the algae would be able to reproduce and grow more rapidly, potentially leading to an overgrowth of algae in the ecosystem. This could then have ripple effects on other organisms within the food web, as the excess algae could disrupt the balance of the ecosystem and potentially harm other species that rely on the algae for food or habitat.
