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Diel vertical migration of zooplankton following optimal food intake under predation | |
Liu, SH; Sun, S; Han, BP | |
2003-09-01 | |
发表期刊 | JOURNAL OF PLANKTON RESEARCH |
ISSN | 0142-7873 |
卷号 | 25期号:9页码:1069-1077 |
文章类型 | Article |
摘要 | A model is developed to investigate the trade-offs between benefits and costs involved in zooplanktonic diel vertical migration (DVM) strategies. The 'venturous revenue' (VR) is used as the criterion for optimal trade-offs. It is a function of environmental factors and the age of zooplankter. During vertical migration, animals are assumed to check instantaneously the variations of environmental parameters and thereby select the optimal behavioral strategy to maximize the value of VR, i.e. taking up as much food as possible with a certain risk of mortality. The model is run on a diel time scale (24 h) in four possible scenarios during the animal's life history. The results show that zooplankton can perform normal DVM balancing optimal food intake against predation risk, with the profile of DVM largely modified by the age of zooplankter.; A model is developed to investigate the trade-offs between benefits and costs involved in zooplanktonic diel vertical migration (DVM) strategies. The 'venturous revenue' (VR) is used as the criterion for optimal trade-offs. It is a function of environmental factors and the age of zooplankter. During vertical migration, animals are assumed to check instantaneously the variations of environmental parameters and thereby select the optimal behavioral strategy to maximize the value of VR, i.e. taking up as much food as possible with a certain risk of mortality. The model is run on a diel time scale (24 h) in four possible scenarios during the animal's life history. The results show that zooplankton can perform normal DVM balancing optimal food intake against predation risk, with the profile of DVM largely modified by the age of zooplankter. |
关键词 | Planktonic Copepod Calanus-pacificus Dynamic Optimization Population-dynamics Marine Copepod Acartia Availability Finmarchicus Environments Patterns |
学科领域 | Marine & Freshwater Biology ; Oceanography |
收录类别 | SCI |
语种 | 英语 |
WOS记录号 | WOS:000185148600006 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://ir.qdio.ac.cn/handle/337002/2786 |
专题 | 海洋生态与环境科学重点实验室 |
作者单位 | 1.Chinese Acad Sci, Inst Oceanog, Dept Marine Ecol, Qingdao 266071, Peoples R China 2.Jinan Univ, Inst Hydrobiol, Guangzhou 510632, Peoples R China |
推荐引用方式 GB/T 7714 | Liu, SH,Sun, S,Han, BP. Diel vertical migration of zooplankton following optimal food intake under predation[J]. JOURNAL OF PLANKTON RESEARCH,2003,25(9):1069-1077. |
APA | Liu, SH,Sun, S,&Han, BP.(2003).Diel vertical migration of zooplankton following optimal food intake under predation.JOURNAL OF PLANKTON RESEARCH,25(9),1069-1077. |
MLA | Liu, SH,et al."Diel vertical migration of zooplankton following optimal food intake under predation".JOURNAL OF PLANKTON RESEARCH 25.9(2003):1069-1077. |
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