Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1073/pnas.1719889115 |
Levy flight movements prevent extinctions and maximize population abundances in fragile Lotka-Volterra systems | |
Dannemann, Teodoro1,2,3,4; Boyer, Denis4,5; Miramontes, Octavio4,5,6 | |
2018-04-10 | |
发表期刊 | PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
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ISSN | 0027-8424 |
出版年 | 2018 |
卷号 | 115期号:15页码:3794-3799 |
文章类型 | Article |
语种 | 英语 |
国家 | Chile; Mexico; Spain |
英文摘要 | Multiple-scale mobility is ubiquitous in nature and has become instrumental for understanding and modeling animal foraging behavior. However, the impact of individual movements on the long-term stability of populations remains largely unexplored. We analyze deterministic and stochastic Lotka-Volterra systems, where mobile predators consume scarce resources (prey) confined in patches. In fragile systems (that is, those unfavorable to species coexistence), the predator species has a maximized abundance and is resilient to degraded prey conditions when individual mobility is multiple scaled. Within the Levy flight model, highly superdiffusive foragers rarely encounter prey patches and go extinct, whereas normally diffusing foragers tend to proliferate within patches, causing extinctions by overexploitation. Levy flights of intermediate index allow a sustainable balance between patch exploitation and regeneration over wide ranges of demographic rates. Our analytical and simulated results can explain field observations and suggest that scale-free random movements are an important mechanism by which entire populations adapt to scarcity in fragmented ecosystems. |
英文关键词 | Lotka-Volterra foraging Levy flights ecological modeling metapopulations |
领域 | 地球科学 ; 气候变化 ; 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000429540300047 |
WOS关键词 | FORAGING SUCCESS ; DYNAMICS ; BEHAVIOR ; DISPERSAL ; PATTERNS ; WALKS ; COMPETITION ; MODELS |
WOS类目 | Multidisciplinary Sciences |
WOS研究方向 | Science & Technology - Other Topics |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/204895 |
专题 | 地球科学 资源环境科学 气候变化 |
作者单位 | 1.Univ Austral Chile, Fac Ciencias Forestales & Recursos Nat, Inst Conservac Biodiversidad & Terr, Lab Ecoinformat, Valdivia 5110566, Chile; 2.Pontificia Univ Catolica Chile, Fac Ciencias Biol, Dept Ecol, Santiago 6513677, Chile; 3.Inst Ecol & Biodiversidad, Santiago 7800003, Chile; 4.Univ Nacl Autonoma Mexico, Inst Fis, Mexico City 04510, DF, Mexico; 5.Univ Nacl Autonoma Mexico, Ctr Ciencias Complejidad, Mexico City 04510, DF, Mexico; 6.Univ Politecn Madrid, Escuela Tecn Super Ingn Aeronaut & Espacio, Dept Matemat Aplicadas, E-28040 Madrid, Spain |
推荐引用方式 GB/T 7714 | Dannemann, Teodoro,Boyer, Denis,Miramontes, Octavio. Levy flight movements prevent extinctions and maximize population abundances in fragile Lotka-Volterra systems[J]. PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,2018,115(15):3794-3799. |
APA | Dannemann, Teodoro,Boyer, Denis,&Miramontes, Octavio.(2018).Levy flight movements prevent extinctions and maximize population abundances in fragile Lotka-Volterra systems.PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,115(15),3794-3799. |
MLA | Dannemann, Teodoro,et al."Levy flight movements prevent extinctions and maximize population abundances in fragile Lotka-Volterra systems".PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA 115.15(2018):3794-3799. |
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