Ecology Environment

18 个科学问题 · 环境生态 Environment

本页目录

岛屿生物地理学理论的核心观点是什么?

What is the core idea of island biogeography theory?

麦克阿瑟和威尔逊提出,岛屿上的物种数由“迁入”和“灭绝”两种速率平衡决定:岛屿越大、离大陆越近,物种就越丰富。这一理论后来被用来指导自然保护区的面积与连通设计。
MacArthur and Wilson argued that the number of species on an island is set by a balance of immigration and extinction: bigger islands closer to the mainland hold more species. The theory now guides the design of reserve size and connectivity.
难度 专业 · 适合 高中(15-18) 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

#岛屿生物地理学 #面积 #隔离

生态学中的“韧性(resilience)”指什么,它和“抵抗力”有何区别?

What does ecological 'resilience' mean, and how does it differ from 'resistance'?

生态韧性指生态系统在受到扰动后恢复到原有状态或维持其核心功能结构的能力;而抵抗力是系统在扰动下保持不变、不被改变的程度。一个系统可能抵抗力弱但韧性很强(如草原被火烧后迅速再生),二者共同决定生态系统的稳定性。
Ecological resilience is the ability of an ecosystem to recover to its prior state or maintain its core functions and structure after a disturbance, whereas resistance is the degree to which a system stays unchanged under disturbance. A system can have low resistance but high resilience—such as grassland rapidly regrowing after fire—and together they determine stability.
难度 专业 · 适合 高中(15-18) CC BY 4.0 · 来源待核验 · Source pending review
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出处备注:此条未指向带版次的可引用著作(通识性内容、机构文件或未展开的英文书名),本库不提供独立书目出处;如需精确引用,需由编辑补全具体篇目与版次。

霍林(C. S. Holling)韧性理论;千年生态系统评估

C. S. Holling's resilience theory; Millennium Ecosystem Assessment

#生态韧性 #抵抗力 #扰动 #恢复 #稳定性

什么是“生态演替”?

What is ecological succession?

演替是群落随时间有序变化的过程:裸地先长草本、再灌丛、最后乔木形成森林(原生演替),或火灾后逐步恢复(次生演替)。
Succession is the orderly change of communities over time: bare ground first grows herbs, then shrubs, then trees (primary), or recovery after fire (secondary).
难度 专业 · 适合 高中(15-18) 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

#演替 #群落 #恢复

景观生态学中的“斑块—廊道—基质”模型指什么?

What does the patch–corridor–matrix model in landscape ecology describe?

这是描述陆地景观结构的框架:斑块是相对均质的小块生境(如林地),廊道是连接它们的线性通道(如林带、河流),基质则是占主导的背景景观(如农田)。廊道的连通性直接影响物种迁移和基因交流。
It is a framework for landscape structure: patches are relatively uniform habitat fragments (e.g. woods), corridors are linear connectors (e.g. hedgerows, rivers), and the matrix is the dominant background (e.g. farmland). Corridor connectivity directly affects species movement and gene flow.
难度 专业 · 适合 小学高段(9-12) 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

#景观生态学 #斑块 #廊道 #基质

生物多样性越高,生态系统就越稳定吗?

Is a more biodiverse ecosystem more stable?

通常如此:物种多的系统有“保险效应”,个别物种失败时有其他物种替代其功能,抵抗干扰和维持生产力的能力更强,但也有例外。
Generally yes: diverse systems show an 'insurance effect'—if one species fails, others fulfill its role, boosting resistance and productivity, though exceptions exist.
难度 专业 · 适合 高中(15-18) 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

#多样性 #稳定性 #保险效应

原生演替和次生演替有什么不同?

How do primary and secondary succession differ?

原生演替发生在完全没有土壤的地方,如裸岩或新火山岩,要从岩石风化、地衣苔藓开始慢慢积土。次生演替发生在原有土壤尚存之处,如森林砍伐或火灾后,恢复起来快得多。
Primary succession starts where no soil exists, such as bare rock or new lava, and must build soil slowly from lichens and mosses. Secondary succession follows disturbance like logging or fire where soil remains, so recovery is much faster.
难度 进阶 · 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

#生态演替 #原生 #次生

什么是环境的“承载能力”?

What is carrying capacity?

承载能力是某地资源(食物、水、空间)在长期内能稳定供养的最大种群数量,超过它种群就会因短缺而下降。
Carrying capacity is the maximum population a place's resources (food, water, space) can sustain long-term; exceed it and the population declines.
难度 进阶 · 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

#承载能力 #种群 #资源

生态系统服务通常分为哪四类?

What are the four commonly recognized types of ecosystem services?

千年生态系统评估把它们分为供给服务(如食物、淡水)、调节服务(如净化空气、调节气候)、文化服务(如旅游、精神价值)和支持服务(如土壤形成、养分循环)。后两类常被忽视,却是前两类的基础。
The Millennium Ecosystem Assessment divides them into provisioning (food, fresh water), regulating (air cleaning, climate control), cultural (recreation, spiritual value) and supporting services (soil formation, nutrient cycling). The last two are often overlooked yet underpin the others.
难度 进阶 · 适合 小学低段(6-8) 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

#生态系统服务 #供给 #调节 #文化 #支持

什么是“关键种(keystone species)”,它和普通物种有何不同?

What is a keystone species, and how does it differ from an ordinary species?

关键种是对生态系统结构和稳定性影响远超其数量占比的物种,移除它会导致群落发生剧烈变化甚至崩溃。与普通物种相比,关键种的作用不取决于生物量多少,而在于它所处的生态功能位置,如海獭维持海带森林、传粉昆虫维系植物繁殖。
A keystone species has an influence on ecosystem structure and stability disproportionate to its abundance; removing it can trigger dramatic community change or collapse. Unlike ordinary species, its importance lies not in biomass but in its functional role—such as sea otters maintaining kelp forests or pollinators sustaining plant reproduction.
难度 进阶 · 适合 初中(12-15) CC BY 4.0 · 来源待核验 · Source pending review
来源 · Source

出处备注:此条未指向带版次的可引用著作(通识性内容、机构文件或未展开的英文书名),本库不提供独立书目出处;如需精确引用,需由编辑补全具体篇目与版次。

美国自然历史博物馆(AMNH)及 Paine(1969)关键种经典研究

American Museum of Natural History; R. T. Paine (1969) keystone species classic study

#关键种 #生态系统稳定性 #海獭 #传粉者 #群落

什么是“生态位”?

What is an ecological niche?

生态位是物种在环境中扮演的角色,包括它吃什么、被谁吃、何时活动、占据哪类栖息地,决定它如何与其他物种共存。
A niche is a species' role—what it eats, what eats it, when it is active and where it lives—governing how it coexists with others.
难度 进阶 · 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

#生态位 #角色 #共存

什么是“营养级联(trophic cascade)”,请举一个经典例子。

What is a trophic cascade, and what is a classic example?

营养级联指食物链中顶级捕食者的增减沿食物链向下传递,引发下层物种乃至整个生态系统结构的连锁变化。经典例子是美国黄石公园重新引入灰狼后,鹿群数量和行为改变,河岸植被恢复、河流形态也随之改善。
A trophic cascade is when changes in the abundance of top predators ripple down the food chain, causing cascading changes in lower-level species and ecosystem structure. A classic example is Yellowstone National Park, where reintroducing gray wolves altered elk numbers and behavior, allowing riparian vegetation to recover and even changing river morphology.
难度 进阶 · 适合 初中(12-15) CC BY 4.0 · 来源待核验 · Source pending review
来源 · Source

出处备注:著录仅给书名,无版次与年份;同一书名常对应多个版次,不臆测具体版本。

《科学》(Science)关于黄石狼群恢复的生态学研究;Ripple & Beschta

Science studies on Yellowstone wolf recovery (Ripple & Beschta)

#营养级联 #顶级捕食者 #黄石公园 #灰狼 #食物链

什么是“边缘效应”?

What is an edge effect?

边缘效应指生态系统交界处的环境与小气候不同于内部,例如林地边缘光照更强、风更大、更干燥。它既会增加某些物种的多样性,也容易让外来物种和干扰侵入。
An edge effect means the boundary between habitats has a different microclimate than the interior, such as brighter light, stronger wind and drier air at a forest edge. It can raise diversity of some species but also lets invaders and disturbances penetrate.
难度 进阶 · 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

#边缘效应 #生境边界 #微气候

什么是“能量金字塔”?

What is an energy pyramid?

能量金字塔表示营养级间能量的递减:每往上一级,只有约10%能量被转化利用,所以顶级捕食者数量最少。
An energy pyramid shows energy decreasing by trophic level; only about 10% transfers upward, so top predators are fewest.
难度 进阶 · 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

#能量金字塔 #营养级 #10%法则

什么是“生态系统”,它由哪两大部分组成?

What is an ecosystem, and what two broad components does it contain?

生态系统是在一定空间内生物群落与其非生物环境(如空气、水、土壤、阳光)相互作用而形成的功能整体。它由生物组分(生产者、消费者、分解者)和非生物组分共同组成,通过物质循环和能量流动维持运转。
An ecosystem is a functional whole formed where a biological community interacts with its non-living environment—such as air, water, soil, and sunlight—within a given space. It comprises living components (producers, consumers, decomposers) and non-living components, sustained by nutrient cycling and energy flow.
难度 入门 · 适合 大众 CC BY 4.0 · 来源待核验 · Source pending review
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出处备注:著录含书名,但缺版次 / 出版社 / 年份中的一部分,需编辑补全后才能做独立比对。

联合国《千年生态系统评估》(Millennium Ecosystem Assessment,2005)

UN Millennium Ecosystem Assessment (2005)

#生态系统 #生物群落 #非生物环境 #物质循环 #能量流动

“食物链顶端”的动物为什么通常比较少?

Why are top-of-the-food-chain animals usually few?

因为能量每传到上一级就只剩约一成,越往上的动物需要越大地盘找食物,所以老虎、鹰这类顶级捕食者数量稀少。
Only about one tenth of energy passes to the next level, so top predators like tigers and eagles need huge ranges and are naturally few.
难度 入门 · 适合 小学高段(9-12) 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

#顶级捕食者 #能量 #稀少

什么是“食物链”和“食物网”?

What are food chains and food webs?

食物链是“草被兔吃、兔被狐吃”这样能量传递的链条;食物网是许多食物链交错成的网络,更能反映真实生态关系。
A food chain is a linear energy path (grass→rabbit→fox); a food web is many interlocking chains, better reflecting real ecological relationships.
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

#食物链 #食物网 #能量

什么是“分解者”,为什么重要?

What are decomposers and why are they important?

分解者是真菌和细菌等,把落叶、死动物变成泥土里的养分,让植物重新生长,是大自然的“清洁工”。
Decomposers like fungi and bacteria turn dead leaves and animals into soil nutrients for plants to reuse—nature's recyclers.
难度 入门 · 适合 小学低段(6-8) 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

#分解者 #真菌 #养分循环

什么是“生物群系”?

What is a biome?

生物群系是在相似气候下形成的大型生态区域,以其典型植被和动物为特征,如热带雨林、沙漠、苔原、温带草原。同一生物群系在不同大陆可以面貌相似但物种不同。
A biome is a large ecological region shaped by a similar climate, recognized by its characteristic plants and animals, such as tropical rainforest, desert, tundra or temperate grassland. The same biome on different continents can look alike yet host different species.
难度 入门 · 适合 幼儿(3-6) 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

#生物群系 #气候 #植被