globalchange  > 气候变化与战略
DOI: 10.1111/ele.13532
论文题名:
Trophic control changes with season and nutrient loading in lakes
作者: Rogers T.L.; Munch S.B.; Stewart S.D.; Palkovacs E.P.; Giron-Nava A.; Matsuzaki S.-I.S.; Symons C.C.
刊名: Ecology Letters
ISSN: 1461023X
出版年: 2020
卷: 23, 期:8
起始页码: 1287
结束页码: 1297
语种: 英语
中文关键词: consumer control ; empirical dynamic modelling ; nutrients ; resource control ; species interactions ; temperature ; time series
英文关键词: animal ; ecosystem ; lake ; phytoplankton ; season ; zooplankton ; Animals ; Ecosystem ; Lakes ; Nutrients ; Phytoplankton ; Seasons ; Zooplankton
英文摘要: Experiments have revealed much about top-down and bottom-up control in ecosystems, but manipulative experiments are limited in spatial and temporal scale. To obtain a more nuanced understanding of trophic control over large scales, we explored long-term time-series data from 13 globally distributed lakes and used empirical dynamic modelling to quantify interaction strengths between zooplankton and phytoplankton over time within and across lakes. Across all lakes, top-down effects were associated with nutrients, switching from negative in mesotrophic lakes to positive in oligotrophic lakes. This result suggests that zooplankton nutrient recycling exceeds grazing pressure in nutrient-limited systems. Within individual lakes, results were consistent with a ‘seasonal reset’ hypothesis in which top-down and bottom-up interactions varied seasonally and were both strongest at the beginning of the growing season. Thus, trophic control is not static, but varies with abiotic conditions – dynamics that only become evident when observing changes over large spatial and temporal scales. © 2020 The Authors. Ecology Letters published by CNRS and John Wiley & Sons Ltd
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/166702
Appears in Collections:气候变化与战略

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作者单位: Southwest Fisheries Science Center, National Marine Fisheries Service, National Oceanic and Atmospheric Administration, Santa Cruz, CA 95060, United States; Cawthron Institute, Nelson, New Zealand; Department of Ecology and Evolutionary Biology, University of California, Santa Cruz, Santa Cruz, CA 95060, United States; National Center for Ecological Analysis and Synthesis, University of California, Santa Barbara, Santa Barbara, CA 93101, United States; Center for Environmental Biology and Ecosystem Studies, National Institute for Environmental Studies, 16-2 Onogawa, Tsukuba, Ibaraki 305-8506, Japan; Department of Ecology and Evolutionary Biology, University of California, Irvine, Irvine, CA 92697, United States

Recommended Citation:
Rogers T.L.,Munch S.B.,Stewart S.D.,et al. Trophic control changes with season and nutrient loading in lakes[J]. Ecology Letters,2020-01-01,23(8)
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