The concept of 'environmental resilience' has gained traction in ecological studies, referring to an ecosystem's capacity to absorb disturbances while maintaining its fundamental structure and functions. Recent research suggests that resilience is not a static property but a dynamic process influenced by biodiversity, nutrient cycling, and external stressors such as climate change. For instance, coral reefs with higher species diversity exhibit greater recovery rates after bleaching events, as different species fulfill complementary roles in reef regeneration. However, human activities, including overfishing and pollution, can erode this resilience by simplifying food webs and reducing genetic variability. Consequently, conservation strategies now emphasize protecting not just individual species but the interactions and feedback loops that sustain ecosystem stability over time. Understanding these mechanisms is crucial for predicting long-term ecological outcomes in an era of rapid environmental change.
❓ Theo đoạn văn, yếu tố then chốt nào giúp tăng cường khả năng phục hồi của hệ sinh thái sau các xáo trộn?
A. A. Mức độ cao của các yếu tố gây căng thẳng bên ngoài như biến đổi khí hậu
B. B. Giảm sự đa dạng di truyền trong loài
C. C. Đa dạng sinh học cao hơn và vai trò bổ trợ của các loài
D. D. Lưới thức ăn bị đơn giản hóa do đánh bắt quá mức
✅ 正确答案
C. Greater biodiversity and complementary species roles
IELTS Reading Tips
Skim the questions first, underline keywords, then locate in the passage
Watch for paraphrasing; correct answers are often reworded
Be wary of absolute statements (all, always, never) — usually wrong
Pay attention to content after transition words (however, but, yet)
Manage time: about 20 minutes per passage; skip difficult questions first