Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1111/ele.12866 |
High mortality and enhanced recovery: modelling the countervailing effects of disturbance on population dynamics | |
McMullen, Laura E.1; De Leenheer, Patrick1,2; Tonkin, Jonathan D.1; Lytle, David A.1 | |
2017-12-01 | |
发表期刊 | ECOLOGY LETTERS |
ISSN | 1461-023X |
EISSN | 1461-0248 |
出版年 | 2017 |
卷号 | 20期号:12 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | Disturbances cause high mortality in populations while simultaneously enhancing population growth by improving habitats. These countervailing effects make it difficult to predict population dynamics following disturbance events. To address this challenge, we derived a novel form of the logistic growth equation that permits time-varying carrying capacity and growth rate. We combined this equation with concepts drawn from disturbance ecology to create a general model for population dynamics in disturbance-prone systems. A river flooding example using three insect species (a fast life-cycle mayfly, a slow life-cycle dragonfly and an ostracod) found optimal trade-offs between disturbance frequency vs. magnitude and a close fit to empirical data in 62% of cases. A savanna fire analysis identified fire frequencies of 3-4 years that maximised population size of a perennial grass. The model shows promise for predicting population dynamics after multiple disturbance events and for management of river flows and fire regimes. |
英文关键词 | Disturbance ecology invertebrate population dynamics resilience resistance |
领域 | 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000414938000008 |
WOS关键词 | SONORAN DESERT STREAM ; FLOW REGIMES ; ANDROPOGON-SEMIBERBIS ; WATER-MANAGEMENT ; AQUATIC INSECTS ; SAVANNA GRASS ; FIRE ; COMMUNITIES ; RIVER ; RESISTANCE |
WOS类目 | Ecology |
WOS研究方向 | Environmental Sciences & Ecology |
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/31364 |
专题 | 资源环境科学 |
作者单位 | 1.Oregon State Univ, Dept Integrat Biol, 3029 Cordley Hall, Corvallis, OR 97331 USA; 2.Oregon State Univ, Dept Math, 368 Kidder Hall, Corvallis, OR 97331 USA |
推荐引用方式 GB/T 7714 | McMullen, Laura E.,De Leenheer, Patrick,Tonkin, Jonathan D.,et al. High mortality and enhanced recovery: modelling the countervailing effects of disturbance on population dynamics[J]. ECOLOGY LETTERS,2017,20(12). |
APA | McMullen, Laura E.,De Leenheer, Patrick,Tonkin, Jonathan D.,&Lytle, David A..(2017).High mortality and enhanced recovery: modelling the countervailing effects of disturbance on population dynamics.ECOLOGY LETTERS,20(12). |
MLA | McMullen, Laura E.,et al."High mortality and enhanced recovery: modelling the countervailing effects of disturbance on population dynamics".ECOLOGY LETTERS 20.12(2017). |
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