Human Activities Drive Extinction of Entire Genera, Threatening the ‘Tree of Life’

A recent study warns of a looming sixth mass extinction, attributing the loss of entire branches of the “Tree of Life” to human activities. Unlike previous studies that focused on individual species, this unique research delves into the extinction of entire genera. Researchers liken the extinction crisis to the gravity of climate change, emphasizing its underappreciated severity.

The study reveals that 73 genera, out of 5,400, have become extinct in the last 500 years, primarily within the last two centuries. This starkly contrasts with the expected rate based on the fossil record. The loss of one genus can have cascading effects on ecosystems.

What are the primary human activities contributing to the extinction of genera?

Habitat destruction, overfishing, hunting, and more are driving these extinctions, with potential consequences that ripple through entire ecosystems.

What does the study’s comparison with the fossil record reveal about the current rate of extinction?

The study shows that the rate of extinction is far higher than expected based on historical data, raising concerns about the accelerated loss of biodiversity.

How does the loss of a single genus affect ecosystems?

Removing a genus can disrupt ecosystems as each species plays a unique role; this analogy highlights the fragility of ecosystems when key components are lost.

What defines a mass extinction?

Mass extinctions entail a 75% loss of species over a short period. While it hasn’t officially started, experts warn that the current trend could lead to a potential sixth mass extinction.

What is the recommended course of action to address the extinction crisis?

Halting habitat destruction and restoring lost habitats are key priorities to save genera and preserve biodiversity, with urgency stressed given the current rate of extinction.

Month: Current Affairs - September, 2023

Category: Environment Current Affairs