DOI: 10.1016/j.foreco.2014.08.005
Scopus记录号: 2-s2.0-85027937994
论文题名: Responses to canopy loss and debris deposition in a tropical forest ecosystem: Synthesis from an experimental manipulation simulating effects of hurricane disturbance
作者: Shiels A.B. ; González G. ; Willig M.R.
刊名: Forest Ecology and Management
ISSN: 0378-1127
出版年: 2014
卷: 332 起始页码: 124
结束页码: 133
语种: 英语
英文关键词: Canopy Trimming Experiment
; Detritus
; Long-term Ecological Research (LTER)
; Resistance-resilience
; Tropical forest succession
; Understory light
英文摘要: Hurricanes, cyclones, or typhoons are intense and broad-scale disturbances that affect many island and coastal ecosystems throughout the world. We summarize the findings of the articles that compose this special issue of Forest Ecology and Management, which focuses on a manipulative experiment (the Canopy Trimming Experiment, CTE) that simulates two key aspects of hurricane effects in a wet tropical forest. Although previous studies of tropical and subtropical forests have documented changes resulting from hurricanes, it is not clear which of the two simultaneously occurring direct effects of hurricanes-canopy openness or debris deposition-most influence responses. In the Luquillo Experimental Forest (LEF) of Puerto Rico, a multi-disciplinary team of scientists used replicated factorial manipulations to determine the independent and interactive effects of canopy openness and debris deposition on structural and functional characteristics of the forest. The majority of responses were primarily driven by canopy openness rather than by debris deposition. Canopy openness resulted in significant increases in densities of and compositional changes in woody plants, ferns, and some litter arthropods, and significant decreases in coqui frog abundances, leaf decomposition, and litterfall. Debris deposition significantly increased tree basal area and microbial diversity on leaf litter, but these increases were relatively small and ephemeral. Several interactive effects of canopy openness and debris addition emerged, including those involving understory herbivory, canopy arthropod structure, terrestrial gastropod abundances and composition, and soil solution chemistry. Arguably, hurricanes are the most important natural disturbance that affect the LEF, and most characteristics that were measured in the CTE showed evidence of resistance or resilience. By identifying the causal factors affecting secondary successional trajectories of diverse taxa ranging from microbes to vertebrates, biogeochemical attributes, microclimatic characteristics, and measures of ecosystem processes following hurricane disturbance, we better understand tropical forest dynamics resulting from past hurricanes and are better able to predict mechanisms of change related to future hurricanes. © 2014. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/65724
Appears in Collections: 影响、适应和脆弱性
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作者单位: USDA, National Wildlife Research Center, Hawaii Field Station, P.O. Box 10880, Hilo, HI, United States; International Institute of Tropical Forestry, USDA Forest Service, Jardín Botánico Sur, 1201 Calle Ceiba, Río Piedras, PR, United States; Center for Environmental Sciences and Engineering, Department of Ecology and Evolutionary Biology, University of Connecticut, Storrs, CT, United States
Recommended Citation:
Shiels A.B.,González G.,Willig M.R.. Responses to canopy loss and debris deposition in a tropical forest ecosystem: Synthesis from an experimental manipulation simulating effects of hurricane disturbance[J]. Forest Ecology and Management,2014-01-01,332