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DOI | 10.1038/s41561-019-0395-6 |
Carbon stocks in central African forests enhanced by elephant disturbance | |
Berzaghi, Fabio1,2,3; Longo, Marcos4,5; Ciais, Philippe2; Blake, Stephen6,7; Bretagnolle, Francois3; Vieira, Simone8; Scaranello, Marcos4; Scarascia-Mugnozza, Giuseppe1; Doughty, Christopher E.9 | |
2019-09-01 | |
发表期刊 | NATURE GEOSCIENCE |
ISSN | 1752-0894 |
EISSN | 1752-0908 |
出版年 | 2019 |
卷号 | 12期号:9页码:725-+ |
文章类型 | Article |
语种 | 英语 |
国家 | Italy; France; Brazil; USA |
英文摘要 | Large herbivores, such as elephants, can have important effects on ecosystems and biogeochemical cycles. Yet, the influence of elephants on the structure, productivity and carbon stocks in Africa's rainforests remain largely unknown. Here, we quantify those effects by incorporating elephant disturbance in the Ecosystem Demography model, and verify the modelled effects by comparing them with forest inventory data from two lowland primary forests in Africa. We find that the reduction of forest stem density due to the presence of elephants leads to changes in the competition for light, water and space among trees. These changes favour the emergence of fewer and larger trees with higher wood density. Such a shift in African's rainforest structure and species composition increases the long-term equilibrium of aboveground biomass. The shift also reduces the forest net primary productivity, given the trade-off between productivity and wood density. At a typical density of 0.5 to 1 animals per km(2), elephant disturbances increase aboveground biomass by 26-60 t ha(-1). Conversely, the extinction of forest elephants would result in a 7% decrease in the aboveground biomass in central African rainforests. These modelled results are confirmed by field inventory data. We speculate that the presence of forest elephants may have shaped the structure of Africa's rainforests, which probably plays an important role in differentiating them from Amazonian rainforests. |
领域 | 地球科学 ; 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000484058100012 |
WOS关键词 | LOPE RESERVE ; BIOMASS ; MEGAFAUNA ; PLEISTOCENE ; EXTINCTIONS ; MORTALITY ; IMPACTS ; MAMMALS ; TRAITS ; TRADE |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
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/186882 |
专题 | 地球科学 气候变化 |
作者单位 | 1.Univ Tuscia, Dipartimento Innovaz Nei Sistemi Biol Agroaliment, Viterbo, Italy; 2.IPSL LSCE CEA CNRS UVSQ, Lab Sci Climat & Environm, Gif Sur Yvette, France; 3.Univ Bourgogne Franche Comte, Biogeosci, UMR 6282, CNRS, Dijon, France; 4.Embrapa Agr Informat, Campinas, SP, Brazil; 5.CALTECH, NASA, Jet Prop Lab, Pasadena, CA 91125 USA; 6.St Louis Univ, Dept Biol, St Louis, MO 63103 USA; 7.Wildlife Conservat Soc, New York, NY USA; 8.Univ Estadual Campinas, Nucleo Estudos & Pesquisas Ambientais, Campinas, SP, Brazil; 9.No Arizona Univ, Sch Informat Comp & Cyber Syst, Flagstaff, AZ 86011 USA |
推荐引用方式 GB/T 7714 | Berzaghi, Fabio,Longo, Marcos,Ciais, Philippe,et al. Carbon stocks in central African forests enhanced by elephant disturbance[J]. NATURE GEOSCIENCE,2019,12(9):725-+. |
APA | Berzaghi, Fabio.,Longo, Marcos.,Ciais, Philippe.,Blake, Stephen.,Bretagnolle, Francois.,...&Doughty, Christopher E..(2019).Carbon stocks in central African forests enhanced by elephant disturbance.NATURE GEOSCIENCE,12(9),725-+. |
MLA | Berzaghi, Fabio,et al."Carbon stocks in central African forests enhanced by elephant disturbance".NATURE GEOSCIENCE 12.9(2019):725-+. |
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