Genetic Resilience of African Elephants Amid Alarming Decline

A genomic study reveals that African elephants, despite declining numbers, are in good genetic health. However, isolated populations show signs of inbreeding and genetic mutations, particularly due to human activity. Interbreeding between savanna and forest elephants enhances genetic diversity, yet poses risks of negative traits introduction.

A groundbreaking genomic study focusing on African elephants, the largest land mammals, indicates that despite alarming population decreases, both savanna and forest species maintain generally good genetic health. The study, encompassing genome data from 232 elephants across multiple African countries, identified troubling signs of inbreeding in isolated populations.

The research highlights that wide-ranging southern African elephant groups benefit from genetic exchange, whereas populations in restricted areas face genetic risks due to human-induced isolation. Factors such as urban expansion and infrastructure development have curtailed natural elephant movements, leading to increased inbreeding and reduced genetic diversity.

Interestingly, savanna elephants in West Africa maintain genetic diversity through interbreeding with forest elephants. Yet, this hybridization could introduce adverse genetic traits. The study underscores the crucial ecological roles elephants play and calls for strengthened conservation measures to protect these iconic species from further decline.

(With inputs from agencies.)