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| 1 | Tree species diversity predicts aboveground carbon storage through functional diversity and functional dominance in the dry evergreen Afromontane forest of Hararghe highland, Southeast Ethiopia显示文摘Background:Regarding the most important ecological challenges,scientists are increasingly debating the relationship between biodiversity and ecosystem function.Despite this,several experimental and theoretical researches have shown inconsistencies in biodiversity and ecosystem function relationships,supporting either the niche complementarity or selection effect hypothesis.The relationship between species diversity,functional diversity,and aboveground biomass carbon was investigated in this study employing standing aboveground carbon(AGC)stock as a proxy measure for ecosystem function.We hypothesized that(i)effects of diversity on AGC can be transmitted through functional diversity and functional dominance;(ii)effects of diversity on AGC would be greater for functional dominance than functional diversity;and(iii)effects of functional diversity and functional dominance on carbon stock varied with metrics and functional traits.Community-weighted means(CWM)of functional traits(wood density,specific leaf area,and maximum plant height)were calculated to assess functional dominance(selection effects).As for functional diversity(complementarity effects),multi-trait functional diversity(selection effects)indices were computed.We tested the first hypothesis using structural equation modeling.For the second hypothesis,the effects of environmental variables such as slope,aspect,and elevation were tested first,and separate linear mixed-effects models were fitted afterward for functional diversity,functional dominance,and the two together.Results:Results revealed that slope had a significant effect on aboveground carbon storage.Functional diversity and functional dominance were significant predictors of the aboveground carbon storage(22.4%)in the dry evergreen Afromontane forest.The effects of species richness on aboveground carbon storage were mediated by functional diversity and functional dominance of species.This shows that both the selection effects and the niche complementarity are important for aboveground carbon storage prediction.However,the functional diversity effects(niche complementarity)were greater than functional dominance effects(selection effects).Conclusions:Linking diversity and biodiversity components to aboveground carbon provides better insights into the mechanisms that explain variation in aboveground carbon storage in natural forests,which may help improve the prediction of ecosystem functions. | Mengistu Teshome Wondimu Zebene Asfaw Nigussie Muktar Mohammed Yusuf | 2021 | Ecological Processes2021，10，1： | 2 |
| 2 | Oral Pulsed Dexamethasone Therapy in Early Rheumatoid Arthritis显示文摘 | ERIC‐JAN A.KROOT A. MARGRIETHUISMAN JENDéVAN ZEBEN JACQUES M.G.W.WOUTERS HENK C.VAN PAASSEN | 2006 | Annals of the New York Academy of Sciences2006，，1： | 1 |
| 3 | Randomised comparison of combined step-down prednisolone, methotrexate and sulphasalazine with sulphasalazine alone in early rheumatoid arthritis显示文摘 | Maarten Boers Arco C Verhoeven Harry M Markusse Mart AFJ van de Laar Rene Westhovens J Christiaan van Denderen Derkjen van Zeben Ben AC Dijkmans Andre J Peeters Piet Jacobs Hans R van den Brink Hubert JA Schouten Désirée MFM van der Heijde Annelies Boonen | 1997 | The Lancet1997，，9074： | 1 |
| 4 | Association of HLA-DR4 with a more Progressive disease course in Patients with rheumatoid arthritis显示文摘 | Van Zeben D Hazes JM Zwinderman AH | 1991 | Arthritis Rheum1991，34，7： | 1 |
| 5 | Oral pulsed dexamethasone therapy in early rheumatoid arthritis:a pilot study显示文摘 | Kroot E J Huisman AM Van Zeben J | 2006 | Ann N Y Acad Sci2006，1069，： | 1 |
| 6 | Long- term course and outcome of functional capacity in rheumatoid arthritis; the effect of disease activity and radiologic damage o- ver time显示文摘 | Drossaers-Bakker KW de Buck M van Zeben D | 1999 | Arthritis Rheum1999，42，： | 1 |
| 7 | Factors predict- ing outcome of rheumatoid arthritis : results of a follow-up study 显示文摘 | van Zeben D Hazes JMW Zwinderman AFI | 1993 | J Rheumatol1993，20，： | 1 |
| 8 | Long- term course and outcome of functional capacity in rheumatoid ar- thritis: the effect of disease activity and radiologic damage over time显示文摘 | Drossaers-Bakker KW de Buck M van Zeben D | 1999 | Arthritis Rheum1999，42，9： | 1 |
| 9 | Association of cardiovascular risk factors with carotid In-tima media thickness in patients with rheumatoid arthritiswith low disease activity compared to controls: A cross-sec-tional Study显示文摘 | van Breukelen-van der Stoep DF van Zeben D Klop B etal | 2015 | PLoS One2015，10，： | 1 |
| 10 | : Factors predicting outcome of rheumatoid arthritis: results of a followup study显示文摘 | Van Zeben D Hazes JMW Zwinderman AH | 1993 | Rheumatol1993，20，： | 1 |
| 11 | Association of HLA-DR4 with a more progressive disease course in patients with rheumatoid arthritis 显示文摘 | van Zeben D Hazes JM Zwinderman AH | 1991 | Arthritis Rheum1991，34，7： | 1 |
| 12 | Association of HLA- dr4 with a more progressive diseases course in patients with RA 显示文摘 | Zeben DV Hazes JW ZwinderMan AH | 1991 | Arthritis Rheum1991，34，7： | 1 |
| 13 | Evaluation of microcytosis using serum ferritin and red blood cell distribution width显示文摘 | Van Zeben D Bieger R Van Wermeskerrken RK | | 0，，02： | 1 |
| 14 | Evaluation of mi- crocytosis using serum ferritin and red blood cell distribution width 显示文摘 | van Zeben D Bieger R van Wermeskerken RK | 1990 | Eur J Haematol1990，44，2： | 1 |
| 15 | Forest cover change and its driving forces in Fagita Lekoma District,Ethiopia显示文摘This study investigated forest cover change and the driving forces behind it in Fagita Lekoma District of Ethiopia that resulted in increased forest cover,which might be uncommon outside this case study area.The LULC change analysis was made from 2003 to 2017 based on Landsat images.Socioeconomic analysis was carried out to identify the major driving forces that resulted in LULC change.A questionnaire survey,focused group discussion,key informant interviews and field observation were employed to analyze the link between LULC change and the driving forces.The 15-year period(2003–2017)image analysis revealed that the coverage of forest lands,built-up areas and grassland has increased by 256%,100%and 96%,respectively,at the expense of cultivated lands and wetlands.The increased forest cover is due to the woodlots expansion of Acacia decurrens Willd,which are designed for sustainable livelihoods and a land revitalization strategy in the study area.Rapid population growth,an increasing demand for charcoal and subsequent market opportunities,preferred qualities of A.decurrens or black wattle to halt land degradation as well as to improve land productivity,have been identified as the major driving forces of forest cover change.Chi squared analysis revealed that:a comparative cash income from the sale of A.decurrens;a dependency on natural forests;the distance from the district administrative center;the size of the active labor force,and the area of land owned have significantly affected the cover change.The major forest cover change is due to the expansion of A.decurrens plantations that have socioeconomic and environmental implications to improve rural livelihoods and revitalize the land.Thus,the positive experiences identified in this study should be scaled-up and applied in other similar settings. | Yigez Belayneh Guo Ru Awoke Guadie Zebene Lakew Teffera Mengesha Tsega | 2020 | Journal of Forestry Research2020，31，5： | 1 |
| 16 | Evaluation of microcytosis using serum ferritin and red blood cell distribution width显示文摘 | van Zeben D Bieger R van Wermeskerken RK | 1990 | Eur J Haematol1990，44，： | 1 |
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