DOI: 10.1111/ele.13853
论文题名: Stabilising role of seed banks and the maintenance of bacterial diversity
作者: Wisnoski N.I. ; Lennon J.T.
刊名: Ecology Letters
ISSN: 1461023X
出版年: 2021
语种: 英语
中文关键词: bacterioplankton
; community dynamics
; dormancy
; negative frequency dependence
; seasonality
英文摘要: Coexisting species often exhibit negative frequency dependence due to mechanisms that promote population growth and persistence when rare. These stabilising mechanisms can maintain diversity through interspecific niche differences, but also through life-history strategies like dormancy that buffer populations in fluctuating environments. However, there are few tests demonstrating how seed banks contribute to long-term community dynamics and the maintenance of diversity. Using a multi-year, high-frequency time series of bacterial community data from a north temperate lake, we documented patterns consistent with stabilising coexistence. Bacterial taxa exhibited differential responses to seasonal environmental conditions, while seed bank dynamics helped maintain diversity over less-favourable winter periods. Strong negative frequency dependence in rare, but metabolically active, taxa suggested a role for biotic interactions in promoting coexistence. Together, our results provide field-based evidence that niche differences and seed banks contribute to recurring community dynamics and the long-term maintenance of diversity in nature. © 2021 John Wiley & Sons Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/166954
Appears in Collections: 气候变化与战略
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作者单位: Department of Biology, Indiana University, Bloomington, IN, United States; Wyoming Geographic Information Science Center, University of Wyoming, Laramie, WY 82071, United States
Recommended Citation:
Wisnoski N.I.,Lennon J.T.. Stabilising role of seed banks and the maintenance of bacterial diversity[J]. Ecology Letters,2021-01-01