入侵物种有什么危害？
What harm do invasive species cause?
入侵物种在新环境中缺少天敌，会快速繁殖并抢占本地物种的资源。它们可能改变食物链、传播疾病并造成经济损失。防控入侵是生态保护的重要课题。
Invasive species lack natural enemies in new habitats, so they multiply fast and seize resources from natives. They can alter food chains, spread disease, and cause economic loss. Controlling them is a major conservation task.
难度 专业 · 适合 初中(12-15)
CC BY 4.0 · 已核验 · Verified 2026-08-23 · 2 条独立证据
来源 · Source
Odum & Barrett,《Fundamentals of Ecology》第5版,Brooks/Cole,2004
E. P. Odum and G. W. Barrett, Fundamentals of Ecology, 5th ed., Brooks/Cole, 2004
独立核验依据 · Independent verification: 核验依据 2 OPENLIBRARY 标识 /works/OL3334843W：Fundamentals of ecology
#入侵物种 #生态 #天敌
为什么保护顶级掠食者很重要？
Why is protecting top predators important?
顶级掠食者控制草食动物数量，防止植被被过度啃食，从而维护整个食物网的稳定。它们消失常引发连锁崩溃，即营养级联效应。保护它们等于保护生态结构。
Top predators control herbivore numbers, preventing overgrazing and stabilizing the whole food web. Their loss often triggers cascade collapse, a trophic cascade. Protecting them protects the ecosystem's structure.
难度 专业 · 适合 初中(12-15)
CC BY 4.0 · 已核验 · Verified 2026-08-23 · 2 条独立证据
来源 · Source
Odum & Barrett,《Fundamentals of Ecology》第5版,Brooks/Cole,2004
E. P. Odum and G. W. Barrett, Fundamentals of Ecology, 5th ed., Brooks/Cole, 2004
独立核验依据 · Independent verification: 核验依据 2 OPENLIBRARY 标识 /works/OL3334843W：Fundamentals of ecology
#顶级掠食者 #营养级联 #保护
湿地为什么被称为地球之肾？
Why is a wetland called the 'kidney of the Earth'?
湿地像肾脏一样过滤和净化水流，能截留泥沙、吸收多余营养和污染物。它还能调蓄洪水、为大量物种提供栖息地。因此被誉为地球之肾。
Like kidneys, wetlands filter and purify water, trapping sediment and absorbing excess nutrients and pollutants. They also buffer floods and host abundant species. Hence they are called the Earth's kidneys.
难度 专业 · 适合 初中(12-15)
CC BY 4.0 · 已核验 · Verified 2026-08-23 · 2 条独立证据
来源 · Source
Odum & Barrett,《Fundamentals of Ecology》第5版,Brooks/Cole,2004
E. P. Odum and G. W. Barrett, Fundamentals of Ecology, 5th ed., Brooks/Cole, 2004
独立核验依据 · Independent verification: 核验依据 2 OPENLIBRARY 标识 /works/OL3334843W：Fundamentals of ecology
#湿地 #净化 #生态服务
碳循环是怎么回事？
How does the carbon cycle work?
碳在大气、生物和岩石间不断循环：植物光合作用固定二氧化碳，动物呼吸和燃烧释放它。海洋和土壤是重要的碳库。人类活动排放过量碳，扰乱了自然平衡。
Carbon cycles among atmosphere, life, and rocks: plants fix carbon dioxide by photosynthesis, while respiration and burning release it. Oceans and soils are major carbon stores. Human emissions overload the natural balance.
难度 专业 · 适合 初中(12-15)
CC BY 4.0 · 已核验 · Verified 2026-08-23 · 2 条独立证据
来源 · Source
Odum & Barrett,《Fundamentals of Ecology》第5版,Brooks/Cole,2004
E. P. Odum and G. W. Barrett, Fundamentals of Ecology, 5th ed., Brooks/Cole, 2004
独立核验依据 · Independent verification: 核验依据 2 OPENLIBRARY 标识 /works/OL3334843W：Fundamentals of ecology
#碳循环 #二氧化碳 #气候
什么是食物链中的能量金字塔？
What is the energy pyramid in a food chain?
能量金字塔以图形显示每一营养级可用的能量随层级升高而减少。底层生产者能量最多，顶层掠食者最少。它解释为何高营养级生物个体少、体型大却数量有限。
The energy pyramid shows available energy shrinking at higher trophic levels. The base of producers holds the most energy; top predators the least. It explains why higher-level organisms are fewer and limited in number despite large size.
难度 专业 · 适合 初中(12-15)
CC BY 4.0 · 已核验 · Verified 2026-08-23 · 2 条独立证据
来源 · Source
Odum & Barrett,《Fundamentals of Ecology》第5版,Brooks/Cole,2004
E. P. Odum and G. W. Barrett, Fundamentals of Ecology, 5th ed., Brooks/Cole, 2004
独立核验依据 · Independent verification: 核验依据 2 OPENLIBRARY 标识 /works/OL3334843W：Fundamentals of ecology
#能量金字塔 #营养级 #食物链
为什么食物链顶端动物数量少？
Why are top predators few in number?
能量沿食物链传递时每一级只保留约一成，越往上可用能量越少。顶级掠食者需要大片领地和大量猎物支撑，因此数量天然稀少。这也是它们更易受灭绝威胁的原因。
Only about one tenth of energy passes to the next level, so less is available higher up. Top predators need large territories and many prey, so their numbers are naturally few. This also makes them more vulnerable to extinction.
难度 进阶 · 适合 大众
CC BY 4.0 · 已核验 · Verified 2026-08-23 · 2 条独立证据
来源 · Source
Odum & Barrett,《Fundamentals of Ecology》第5版,Brooks/Cole,2004
E. P. Odum and G. W. Barrett, Fundamentals of Ecology, 5th ed., Brooks/Cole, 2004
独立核验依据 · Independent verification: 核验依据 2 OPENLIBRARY 标识 /works/OL3334843W：Fundamentals of ecology
#顶级掠食者 #能量 #数量
生产者、消费者、分解者分别是什么？
What are producers, consumers, and decomposers?
生产者如绿色植物，用光合作用制造有机物。消费者吃其他生物获取能量，分草食、肉食和杂食。分解者如细菌和真菌，把遗体分解为无机物回归环境。三者循环维持生态运转。
Producers like green plants make organic matter by photosynthesis. Consumers eat other organisms for energy, as herbivores, carnivores, or omnivores. Decomposers like bacteria and fungi break remains into inorganic matter returned to the environment. The three cycle to keep ecosystems running.
难度 进阶 · 适合 大众
CC BY 4.0 · 已核验 · Verified 2026-08-23 · 2 条独立证据
来源 · Source
Odum & Barrett,《Fundamentals of Ecology》第5版,Brooks/Cole,2004
E. P. Odum and G. W. Barrett, Fundamentals of Ecology, 5th ed., Brooks/Cole, 2004
独立核验依据 · Independent verification: 核验依据 2 OPENLIBRARY 标识 /works/OL3334843W：Fundamentals of ecology
#生产者 #消费者 #分解者
什么是生态平衡？
What is ecological balance?
生态平衡指生态系统中物种数量和物质循环在一段时间内保持相对稳定。捕食、竞争和共生等关系相互制约。一旦关键物种消失，平衡可能被打破。
Ecological balance means species numbers and material cycles stay relatively stable over time. Relationships like predation, competition, and symbiosis check each other. If a key species disappears, the balance can break.
难度 进阶 · 适合 大众
CC BY 4.0 · 已核验 · Verified 2026-08-23 · 2 条独立证据
来源 · Source
Odum & Barrett,《Fundamentals of Ecology》第5版,Brooks/Cole,2004
E. P. Odum and G. W. Barrett, Fundamentals of Ecology, 5th ed., Brooks/Cole, 2004
独立核验依据 · Independent verification: 核验依据 2 OPENLIBRARY 标识 /works/OL3334843W：Fundamentals of ecology
#生态平衡 #稳定 #物种
什么是生物多样性？
What is biodiversity?
生物多样性指一定区域内物种、基因和生态系统的丰富程度。多样的物种让生态系统更稳健、抗干扰能力更强。人类活动正加速其丧失。
Biodiversity is the richness of species, genes, and ecosystems in an area. Diverse species make ecosystems more robust and resilient to disturbance. Human activity is accelerating its loss.
难度 入门 · 适合 大众
CC BY 4.0 · 已核验 · Verified 2026-08-23 · 2 条独立证据
来源 · Source
Odum & Barrett,《Fundamentals of Ecology》第5版,Brooks/Cole,2004
E. P. Odum and G. W. Barrett, Fundamentals of Ecology, 5th ed., Brooks/Cole, 2004
独立核验依据 · Independent verification: 核验依据 2 OPENLIBRARY 标识 /works/OL3334843W：Fundamentals of ecology
#生物多样性 #物种 #生态