What might allow an invasive species to outcompete a native species?
a
They use the same shelter or space.
b
They have no predators, so they can spread rapidly.
c
They are introduced by humans at high rates.
d
They eat the same food resources.
e
They have a higher reproductive rate.
The correct answer is a combination of all the options you provided. All of these factors can contribute to the success of an invasive species in outcompeting a native species. Here's how each factor plays a role:
a) Shared shelter or space: If both the invasive and native species rely on the same limited resources for finding shelter or space, competition for these resources can give the invasive species an advantage. It may be better adapted or more efficient at utilizing the resources, allowing it to outcompete the native species.
b) Lack of predators: Invasive species often lack natural predators in their new environment, which allows them to spread rapidly. Without predators to keep their population in check, they can reproduce and grow unchecked, leading to dominance over native species.
c) Human introduction: Many invasive species are introduced to new areas by humans, intentionally or unintentionally. Human activities, such as global trade and travel, can result in the unintentional transport of invasive species to new environments. When these species are introduced at high rates, they can quickly establish themselves and outcompete native species.
d) Same food resources: If both the invasive and native species rely on the same limited food resources, competition for food can give the invasive species an advantage. It may have adaptations that make it more efficient at obtaining or utilizing the food, allowing it to outcompete the native species.
Understanding these factors helps us comprehend why invasive species can outcompete native species. It's important to study and manage invasive species to prevent potential ecological damage and protect native biodiversity.