在英语四级的学习中，词汇的积累与掌握扮演着至关重要的角色。丰富的词汇量不仅有助于我们构建清晰、准确的表达，更是提升听、说、读、写各项技能的关键。为了更好地帮助考生们备考，以下是小编精心整理的英语四级词汇短语分类之一：生物数量常用词汇短语，希望能为大家的英语学习之路添砖加瓦。
1.biodiversity - n. 生物多样性
例句: Protecting biodiversity is crucial for maintaining the health of our ecosystems.
例句含义: 保护生物多样性对于维护我们生态系统的健康至关重要。
2.population density - n. 人口密度
例句: The population density of this city is much higher than that of rural areas.
例句含义: 这座城市的人口密度远高于农村地区。
3.species richness - n. 物种丰富度
例句: The rainforest is renowned for its high species richness, supporting thousands of unique plant and animal species.
例句含义: 热带雨林因其高物种丰富度而闻名，支持着数千种独特的动植物种类。
4.abundance - n. 丰富，大量
例句: The ocean's abundance of fish species has declined significantly due to overfishing.
例句含义: 由于过度捕捞，海洋中的鱼类物种丰富度已大幅下降。
5.scarcity - n. 稀缺，不足
例句: The scarcity of clean water in some regions is a major concern for global health.
例句含义: 一些地区清洁水的稀缺是全球健康的主要关注点。
6.habitat - n. 栖息地
例句: The destruction of natural habitats threatens the survival of many endangered species.
例句含义: 自然栖息地的破坏威胁着许多濒危物种的生存。
7.migration - n. 迁徙
例句: Many bird species undertake long migrations each year in search of food and warmer climates.
例句含义: 许多鸟类每年进行长途迁徙，以寻找食物和更温暖的气候。
8.ecological niche - n. 生态位
例句: Each species has a unique ecological niche within its environment, allowing it to coexist with others.
例句含义: 每个物种在其环境中都有一个独特的生态位，使其能够与其他物种共存。
9.census - n. 人口普查
例句: The government conducts a census every ten years to determine the country's population growth.
例句含义: 政府每十年进行一次人口普查，以确定国家的人口增长情况。
10.population explosion - n. 人口爆炸
例句: The population explosion in developing countries poses a significant challenge for food security.
例句含义: 发展中国家的人口爆炸对粮食安全构成了重大挑战。
11.conservation - n. 保护，保存
例句: Wildlife conservation efforts are aimed at preserving endangered species and their habitats.
例句含义: 野生动植物保护工作的目的是保护濒危物种及其栖息地。
12.prey - n. 猎物；v. 捕食
例句 (n.): The lion stalked its prey across the savanna.
例句含义: 狮子在热带草原上悄悄跟踪它的猎物。
例句 (v.): Hawks prey on small animals for food.
例句含义: 鹰捕食小动物为食。
13.predator-prey relationship - n. 捕食者与猎物的关系
例句: The predator-prey relationship in the food chain is a fundamental aspect of ecosystems.
例句含义: 捕食者与猎物的关系在食物链中是生态系统的一个基本方面。
14.reproduction rate - n. 繁殖率
例句: The reproduction rate of this species is high, allowing it to quickly rebound from population declines.
例句含义: 这种物种的繁殖率很高，使其能够迅速从数量下降中恢复。
15.endangered species - n. 濒危物种
例句: Governments and conservation organizations work together to protect endangered species from extinction.
例句含义: 政府和保护组织共同努力保护濒危物种免于灭绝。
16.sustainability - n. 可持续性
例句: Sustainable fishing practices are essential for maintaining healthy fish populations over time.
例句含义: 可持续的捕鱼做法对于长时间保持鱼类种群健康至关重要。
17.carrying capacity - n. 环境容纳量
例句: The carrying capacity of an ecosystem depends on its resources and the ability of its inhabitants to adapt.
例句含义: 一个生态系统的环境容纳量取决于其资源和居民适应的能力。
18.population dynamics - n. 种群动态
例句: Studying population dynamics helps scientists understand how species numbers change over time.
例句含义: 研究种群动态有助于科学家了解物种数量如何随时间变化。
19.overpopulation - n. 人口过剩
例句: Overpopulation in some cities has led to severe housing shortages and traffic congestion.
例句含义: 一些城市的人口过剩导致了严重的住房短缺和交通拥堵。
20.ecological balance - n. 生态平衡
例句: Maintaining ecological balance is essential for ensuring the long-term health of our planet.
例句含义: 维持生态平衡对于确保我们星球的长期健康至关重要。
以上便是英语四级词汇：生物数量常用词汇短语的相关内容，通过学习和记忆这些词汇及其例句，相信大家在备考英语四级时能够更加得心应手，取得优异的成绩。
