
New research published in the journal Nature reveals alarming trends in genetic diversity among animal and plant populations. The study, which analyzed data for 628 species over a span of 34 years, found that two-thirds of these populations are experiencing a decline in genetic variation. This decrease in genetic diversity poses significant challenges for species to adapt to environmental changes.
Genetic diversity plays a crucial role in a species' ability to withstand threats such as diseases and climate change. When a population becomes smaller and fragmented, the pool of potential mates shrinks, leading to reduced genetic mixing. This vulnerability makes species more susceptible to future challenges.