Loading...
Nitrogen addition enhances the bottom-up effects in the detrital food web
Liu, Shengjie Behm, Jocelyn E. Meng, Yuanyuan Zhang, Wei Xia, Shangwen Yang, Xiaodong Fu, Shenglei
Liu, Shengjie
Behm, Jocelyn E.
Meng, Yuanyuan
Zhang, Wei
Xia, Shangwen
Yang, Xiaodong
Fu, Shenglei
Citations
Altmetric:
Genre
Journal article
Date
2022-10-01
Advisor
Committee member
Department
Biology
Permanent link to this record
Collections
Research Projects
Organizational Units
Journal Issue
DOI
http://dx.doi.org/10.1016/j.gecco.2022.e02299
Abstract
Bottom-up forces play a critical role in structuring communities and trophic interactions in detritus-based food webs, yet the impact of global change factors on these forces has been seldom explored. Here, we investigated the bottom-up effects of N-addition concentrations and methods (canopy and understory addition of N) on the trophic structure of detrital food webs comprising three trophic levels (saprotrophic fungi, Collembola and spiders) in a temperate and subtropical forest. At both forests, we found that high N concentrations significantly increased the concentration of litter N and saprotrophic fungi, and also increased Isotomidae collembolan density, but did not cascade up to the spider predator level. In contrast, the N addition methods had no significant impact on any component of trophic structure at either forest. In conclusion, N concentration significantly influenced trophic structure by bottom-up effects.
Description
Citation
Shengjie Liu, Jocelyn E. Behm, Yuanyuan Meng, Wei Zhang, Shangwen Xia, Xiaodong Yang, Shenglei Fu, Nitrogen addition enhances the bottom-up effects in the detrital food web, Global Ecology and Conservation, Volume 39, 2022, e02299, ISSN 2351-9894, https://doi.org/10.1016/j.gecco.2022.e02299.
Citation to related work
Elsevier
Has part
Global Ecology and Conservation, Vol. 39
ADA compliance
For Americans with Disabilities Act (ADA) accommodation, including help with reading this content, please contact scholarshare@temple.edu