The IUCN did acknowledge, however, that the mourning dove's population is decreasing. "The species' population in ... the impact of hunters and invasive human activities will be even more pronounced.

However, when a non-native species is introduced to an ecosystem, it has the potential to become invasive: there are no natural predators or other guardrails keeping it from outcompeting the ...

An invasive species is an organism that is "non-native (or alien) to the ecosystem under consideration," and whose introduction "causes or is likely to cause economic or environmental harm or harm ...