| Fauna access outweighs litter mixture effect during leaf litter decomposition | |
Njoroge, Denis Mburu1,3,4; Dossa, Gbadamassi G. O.; Ye, Luping1; Lin, Xiaoyuan1,3; Schaefer, Douglas5; Tomlinson, Kyle6 ; Zuo, Juan1,2; Cornelissen, Johannes H. C.
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| 2023 | |
| Source Publication | SCIENCE OF THE TOTAL ENVIRONMENT
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| ISSN | 0048-9697 |
| Volume | 860Issue:xPages:- |
| Abstract | Decomposition rates of litter mixtures reflect the combined effects of litter species diversity, litter quality, decom-posers, their interactions with each other and with the environment. The outcomes of those interactions remain am-biguous and past studies have reported conflicting results (e.g., litter mixture richness effects). To date, how litter diversity and soil fauna interactions shape litter mixture decomposition remains poorly understood. Through a sixteen month long common garden litter decomposition experiment, we tested these interaction effects using litterbags of three mesh sizes (micromesh, mesomesh, and macromesh) to disentangle the contributions of different fauna groups categorized by their size at Wuhan botanical garden (subtropical climate). We examined the decomposition of five single commonly available species litters and their full 26 mixtures combination spanning from 2 to 5 species. In total, 2325 litterbags were incubated at the setup of the experiment and partly harvested after 1, 3, 6, 9, and 16 months after exposure to evaluate the mass loss and the combined effects of soil fauna and litter diversity. We predicted that litter mixture effects should increase with increased litter quality dissimilarity, and soil fauna should enhance litter (both single species litter and litter mixtures) decomposition rate. Litter mass loss ranged from 26.9 % to 87.3 %. Soil fauna access to litterbags accelerated mass loss by 29.8 % on average. The contribution of soil mesofauna did not differ from that of soil meso-and macrofauna. Incubation duration and its interactions with litter quality dissimilarities together with soil fauna determined the litter mixture effect. Furthermore, the litter mixture effect weakened as the decomposition progresses. Faunal contribution was broadly additive to the positive mixture effect irrespective of litter species richness or litter dissimilarity. This implies that combining the dissimilarity of mixture species and contribu-tions of different soil fauna provides a more comprehensive understanding of mixed litter decomposition. |
| Keyword | Biodiversity effects Decomposers Ecosystem function Functional diversity Functional traits Litter quality |
| Subject Area | Environmental Sciences |
| DOI | 10.1016/j.scitotenv.2022.160190 |
| Indexed By | SCI |
| WOS ID | WOS:000926945000001 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | https://ir.xtbg.ac.cn/handle/353005/13407 |
| Collection | 2012年后新成立研究组 |
| Affiliation | 1.[Njoroge, Denis Mburu; Dossa, Gbadamassi G. O.] Chinese Acad Sci, CAS Key Lab Trop Forest Ecol, Xishuangbanna Trop Bot Garden, Menglun 666303, Yunnan, Peoples R China 2.Chinese Acad Sci, CAS Key Lab Aquat Bot & Watershed Ecol, Wuhan Bot Garden, Wuhan 430074, Peoples R China 3.Chinese Acad Sci, Ctr Plant Ecol, Core Bot Gardens, Wuhan 430074, Peoples R China 4.Univ Chinese Acad Sci UCAS, Beijing 100049, Peoples R China 5.Chinese Acad Sci, Sino Africa Joint Res Ctr, Wuhan 430074, Peoples R China 6.Chinese Acad Sci, Kunming Inst Bot, Ctr Mt Futures, Kunming 650201, Yunnan, Peoples R China 7.Chinese Acad Sci, Ctr Integrat Conservat, Xishuangbanna Trop Bot Garden, Menglun 666303, Yunnan, Peoples R China 8.Cornelissen, Johannes H. C.] Vrije Univ Amsterdam, Fac Sci, Syst Ecol, A LIFE, De Boelelaan 1085, NL-1081 HV Amsterdam, Netherlands |
| Recommended Citation GB/T 7714 | Njoroge, Denis Mburu,Dossa, Gbadamassi G. O.,Ye, Luping,et al. Fauna access outweighs litter mixture effect during leaf litter decomposition[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2023,860(x):-. |
| APA | Njoroge, Denis Mburu.,Dossa, Gbadamassi G. O..,Ye, Luping.,Lin, Xiaoyuan.,Schaefer, Douglas.,...&Cornelissen, Johannes H. C..(2023).Fauna access outweighs litter mixture effect during leaf litter decomposition.SCIENCE OF THE TOTAL ENVIRONMENT,860(x),-. |
| MLA | Njoroge, Denis Mburu,et al."Fauna access outweighs litter mixture effect during leaf litter decomposition".SCIENCE OF THE TOTAL ENVIRONMENT 860.x(2023):-. |
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