发布求助
文献互助 智能选刊 最新文献

Ecology: A Very Short Introduction最新文献

筛选
英文 中文
3. Populations 3.人口
Ecology: A Very Short Introduction Pub Date : 2020-08-20 DOI: 10.1093/actrade/9780198831013.003.0003
J. Ghazoul
{"title":"3. Populations","authors":"J. Ghazoul","doi":"10.1093/actrade/9780198831013.003.0003","DOIUrl":"https://doi.org/10.1093/actrade/9780198831013.003.0003","url":null,"abstract":"‘Populations’ considers the factors behind animal, plant, and insect population outbreaks. Influenced by weather and food, population outbreaks fast exceed available resources and populations crash. It is difficult to determine whether predators control the prey population or vice versa. Competition is a more persuasive argument for population control, acting through density-dependent processes. Carrying capacity is the population size that can be maintained given available resources, which might well be affected by environmental factors. Ecologists define two types of species—r species which reproduce early and produce many offspring, and k species which inhabit more tranquil environments. The picture is complicated by life trade-offs between two variables, such as reproduction and growth or survival.","PeriodicalId":122319,"journal":{"name":"Ecology: A Very Short Introduction","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-08-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114718550","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
4. Communities 4. 社区
Ecology: A Very Short Introduction Pub Date : 2002-12-01 DOI: 10.1093/actrade/9780198831013.003.0004
J. Ghazoul
{"title":"4. Communities","authors":"J. Ghazoul","doi":"10.1093/actrade/9780198831013.003.0004","DOIUrl":"https://doi.org/10.1093/actrade/9780198831013.003.0004","url":null,"abstract":"‘Communities’ begins by looking at mutualisms, collaborative interactions between species, and goes on to explore ecosystem structure and change. True mutualism is rare, and cooperative relationships easily become exploitative. Entire communities can depend on a ‘keystone’ species, the loss of which has impacts that cascade across the biological system. Succession is the sequential development of increasingly complex ecological communities. Raymond Lindeman’s great insight was to interpret complex ecosystems as flows of energy and matter between living and non-living system components. Successional processes, ecosystem structures, and energy transfers all arise from the myriad of antagonistic and mutualistic interactions among individual organisms.","PeriodicalId":122319,"journal":{"name":"Ecology: A Very Short Introduction","volume":"70 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131844944","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整，为了账户安全，请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们：info@booksci.cn Book学术提供免费学术资源搜索服务，方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号：604180095
Book学术官方微信
小红书