共用题干
Ants Have Big Impact on Environment as“Ecosystem Engineers”
Research by the University of Exeter has revealed that ants have a big impact on their local environment as a result of their activity as“ecosystem engineers”and predators.The study,published in the Journal of Animal Ecology,found that ants have two distinct effects on their local environment.
Firstly,through moving of soil by nest building activity and by collecting food they af-fect the level of nutrients in the soil.This can indirectly impact the local populations of many animal groups,from decomposers to species much higher up the food chain.
Secondly,they prey on a wide range of other animals,including larger prey which can be attacked by vast numbers of ant workers.
Dirk Sanders,an author of the study from the university"s Centre for Ecology and Con-servation,said:“Ants are very effective predators which thrive in huge numbers. They"re al-so very territorial and very aggressive,defending their resources and territory against other predators. All of this means they have a strong influence on their surrounding area.”
“In this research,we studied for the first time how big this impact is and the subtleties of it.What we found is that despite being predators,their presence can also lead to an in-crease in density and diversity of other animal groups. They genuinely play a key role in the local environment,having a big influence on the grassland food web,”Sanders said.
The study,carried out in Germany,studied the impact of the presence of different com-binations and densities of black garden ants and common red ants,both species which can be found across Europe,including in the UK.It found that a low density of ants in an area in-creased the diversity and density of other animals in the local area,particularly the density of herbivores and decomposers. At higher densities ants had no or the opposite effect,showing that predation is counteracting the positive influence.
Dr Frank van Veen,another author on the study,said:“What we find is that the impact of ants on soil nutrient levels has a positive effect on animal groups at low levels,but as the number of ants increases,their predatory impacts have the bigger effect一thereby counter-acting the positive influence via ecosystem engineering.”
Ants are important components of ecosystems not only because they constitute a great part of the animal biomass but also because they act as ecosystem engineers.Ant biodiversity is incredibly high and these organisms are highly responsive to human impact,which obvi-ously reduces its richness. However,it is not clear how such disturbance damages the main-tenance of ant services to the ecosystem. Ants are important in below ground processes through the alteration of the physical and chemical environment and through their effects on plants,microorganisms,and other soil organisms.
As predators,ants______.
Aprey on small as well as large animals
Bcollect nutritious food from the soil
Ccollect food as decomposers
Dprey on species much higher up the food chain
相似试题
-
材料题
共用题干Ants Have Big Impact on Environment as“Ecosystem Engineers”Research by the University of Exeter has revealed that ants have a big impact on their local environment as a result of their activity as“ecosystem engineers”and predators.The study,published in the Journal of Animal Ecology,found that ants have two distinct effects on their local environment.Firstly,through moving of soil by nest building activity and by collecting food they af-fect the level of nutrients in the soil.This can indire
-
材料题
共用题干Ants Have Big Impact on Environment as“Ecosystem Engineers”Research by the University of Exeter has revealed that ants have a big impact on their local environment as a result of their activity as“ecosystem engineers”and predators.The study,published in the Journal of Animal Ecology,found that ants have two distinct effects on their local environment.Firstly,through moving of soil by nest building activity and by collecting food they af-fect the level of nutrients in the soil.This can indire
-
材料题
共用题干Ants Have Big Impact on Environment as“Ecosystem Engineers”Research by the University of Exeter has revealed that ants have a big impact on their local environment as a result of their activity as“ecosystem engineers”and predators.The study,published in the Journal of Animal Ecology,found that ants have two distinct effects on their local environment.Firstly,through moving of soil by nest building activity and by collecting food they af-fect the level of nutrients in the soil.This can indire
-
材料题
共用题干Ants Have Big Impact on Environment as“Ecosystem Engineers”Research by the University of Exeter has revealed that ants have a big impact on their local environment as a result of their activity as“ecosystem engineers”and predators.The study,published in the Journal of Animal Ecology,found that ants have two distinct effects on their local environment.Firstly,through moving of soil by nest building activity and by collecting food they af-fect the level of nutrients in the soil.This can indire
-
材料题
共用题干第三篇Milk That Paid a Medical BillOne day,a poor boy who was selling goods from door to door to pay his way through school found he had only one thin dime(10分钱)left,and he was hungry.He decided he would ask for a meal at the next house.However,he lost his nerve when a lovely young woman opened the door.Instead of a meal he asked for a drink of water.She thought he looked hungry so she brought him a large glass of milk.He drank it slowly,and then asked,How much do I owe you?You dont owe me anyt
热门题库
- 标准员题库
- 成考(高起点)题库
- 安全员题库
- BIM工程师题库
- 中式面点师题库
- 农业技术员题库
- 保育员题库
- 会计从业资格考试题库
- 二级注册建筑师题库
- 园林绿化工题库
- 环境影响评价工程师题库
- 注册会计师题库
- 钳工题库
- 导游资格证题库
- 证券投资顾问题库
- Y大型游乐设施题库
- 二级建造师题库
- 架子工题库
- 高级会计题库
- 公用设备工程师题库
- 中级会计职称题库
- 消防设施操作员题库
- 安全工程师题库
- 房地产经纪人题库
- 高校教师资格证题库
- 机械员题库
- 仓库管理员题库
- 自考(医学)题库
- 理工类题库
- 新安全生产法题库
- 制冷工题库
- 基金从业资格题库
- 安全员(三类人员)题库
- 餐厅服务员题库
- 煤矿特种作业人员题库
- 危险化学品安全作业题库
- D压力管道作业题库
- 电子商务师题库
- 会计从业题库
- 动物检疫检验员题库
- (初级)银行从业资格题库
- 执业药师题库
- 美容师题库
- 理财规划师题库
- 注册结构工程师题库
- 心理咨询师题库
- 房地产估价师题库
- 陕西省-社区专职工作人员招聘题库
- 特种设备焊接作业题库
- 注册消防工程师题库
- 保卫管理员题库
- 监管人员执法题库
- G锅炉作业题库
- 美发师题库
- 制油工题库
- 岩土工程师题库
- 建筑特殊工种题库
- 农产品食品检验员题库
- 房地产经纪协理题库
- 车工题库
- 三支一扶题库
- 国家电网招聘题库
- 金属非金属矿山安全作业题库
- R压力容器作业题库
- 证券分析师题库
- 制冷与空调作业题库
- 健康管理师题库
- 眼镜验光员题库
- 期货从业资格题库
- 资产评估师题库
- P气瓶作业题库
- 装饰美工题库
- 电工作业题库
- 教师资格题库
- 砌筑工题库
- 植物检疫检验员题库
- 汽车驾驶员题库
- 焊工作业题库
- 园艺工题库
- 咨询工程师题库
- A特种设备安全管理题库
- 主要负责人题库
- 初级会计职称题库
- 注册环保工程师题库
- 设备监理师题库
- 中级安全工程师题库
- 投资银行业务-保荐代表人题库
- 中式烹调师题库
- 企业人力资源管理师题库
- 工业机器人操作员题库
- 汽车修理工题库
- 驾考科一、科四题库
- 卫生类题库
- 煤矿主要负责人题库
- 药学类题库
- 省公务员-行测题库
- 初级管理会计师题库
- (中级)经济师题库
- 卫生招聘考试题库
- 石油天然气安全作业题库
- 招标师题库
- 煤矿类从业人员题库
- 土地登记代理人题库
- 茶艺师题库
- 审计师题库
- 土木工程师(水利水电)题库
- 注册电气工程师题库
- 形象设计师题库
- 中药学类题库
- 报检员题库
- (中级)银行从业资格题库
- 法律职业资格(原司法考试)题库
- 注册城乡规划师题库
- 质量工程师题库
- 证劵从业(旧版)题库
- 电工题库
- 资料员题库
- (高级)经济师题库
- 一级注册建筑师题库
- 证劵从业(新版)题库
- 安全管理人员题库
- 营养师题库
- 网络与信息安全管理员题库
- 施工员题库
- 汽车发动机题库
- 统计师题库
- 医药商品购销员题库
- T电梯作业题库
- Q起重机械作业题库
- 消防工程师题库
- 注册测绘师题库
- 西式面点师题库
- 演出经纪人题库
- 煤矿安全管理人员题库
- 试验检测师(含助理)题库
- 烟花爆竹安全作业题库
- 同等学力申硕题库
- (初级)经济师题库
- 军队文职人员招聘题库
- 物流服务师题库
- 冶金(有色)生产安全作业题库
- 医师类题库
- 网络安全管理员题库
- 税务考试题库题库
- 家政服务员题库
- 主治类题库
- 事业单位公开招聘题库
- 缝纫工题库
- 高处作业题库
- 道路运输题库
- 质量员题库
- 养老护理员题库
- 教师招聘题库
- 护理类题库
- 检验类题库
- 铣床题库
- 计算机及外部设备装配调试员题库
- 监理工程师题库
- 职业道德题库
- 综合类题库
- 公安政法干警题库
- 报关员题库
- 无人机驾驶员题库
- 煤矿班组长题库
- 软件水平考试题库
- 育婴员题库
- N厂内专用机动车辆作业题库
- 国家公务员题库
- 家畜饲养员题库
- F安全阀校验题库
- 投资项目管理师题库
- 材料员题库
- 轨道交通信号工题库
- 二级造价工程师题库
- 健康管理师题库
- 税务师题库
- 物业管理师题库
- 成考(专升本)题库
- 工业机器人运维员题库
- 劳务员题库
- 焊工题库
- 社会工作者题库
- 一级建造师题库
- 一级造价工程师题库
- 工程测量员题库
- 银行招聘考试题库
- 钢筋工题库
- 研究生入学题库
- 公共营养师题库