What is 'extinction by dilution?

Extinction by dilution refers to the phenomenon where the genetic diversity of a population decreases due to the introduction of individuals from outside populations, often leading to the dilution of unique genetic traits. This process can occur in both natural ecosystems and in captive breeding programs. As a result, the original population's ability to adapt to environmental changes may be compromised, potentially increasing the risk of extinction. Ultimately, it highlights the importance of maintaining genetic integrity in conservation efforts.