How can changes in climate affect the biodiversity?
Changes in climate act as a major threat that reduces biodiversity. When conditions change, organisms must rely on small differences to adapt and survive. If they cannot adapt, they may disappear.
The disappearance of one species triggers a chain reaction; others that depend on it may also decline in number and eventually disappear. This breaks the vital interconnections that keep nature stable. Additionally, losing biodiversity removes the natural barriers that protect ecosystems against challenges like diseases and extreme weather.
Explanation
The textbook context explains that climate change is a human activity directly reducing biodiversity. It notes that small differences among individuals help them adapt to changed conditions, implying that failure to adapt leads to extinction. Furthermore, it highlights the interconnectedness of life; when one species disappears, dependent species also decline. Finally, a loss of biodiversity means losing the natural physical, biological, and chemical barriers that protect ecosystems.