Nematode biomass changes along an elevational gradient are trophic group dependent but independent of body size

© 2023 The Authors. Global Change Biology published by John Wiley & Sons Ltd.

Bibliographische Detailangaben
Veröffentlicht in:Global change biology. - 1999. - 29(2023), 17 vom: 04. Sept., Seite 4898-4909
1. Verfasser: Li, Guixin (VerfasserIn)
Weitere Verfasser: Wilschut, Rutger A, Luo, Shuaiwei, Chen, Han, Wang, Xiangtai, Du, Guozhen, Geisen, Stefan
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2023
Zugriff auf das übergeordnete Werk:Global change biology
Schlagworte:Journal Article Tibetan grasslands biotic and abiotic factors climate change community-weighted mean nematode biomass trophic sensitivity Soil Water 059QF0KO0R
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520 |a Aboveground, large and higher trophic-level organisms often respond more strongly to environmental changes than small and lower trophic-level organisms. However, whether this trophic or size-dependent sensitivity also applies to the most abundant animals, microscopic soil-borne nematodes, remains largely unknown. Here, we sampled an altitudinal transect across the Tibetan Plateau and applied a community-weighted mean (CWM) approach to test how differences in climatic and edaphic properties affect nematode CWM biomass at the level of community, trophic group and taxon mean biomass within trophic groups. We found that climatic and edaphic properties, particularly soil water-related properties, positively affected nematode CWM biomass, with no overall impact of altitude on nematode CWM biomass. Higher trophic-level omnivorous and predatory nematodes responded more strongly to climatic and edaphic properties, particularly to temperature, soil pH, and soil water content than lower trophic-level bacterivorous and fungivorous nematodes. However, these differences were likely not (only) driven by size, as we did not observe significant interactions between climatic and edaphic properties and mean biomasses within trophic groups. Together, our research implies a stronger, size-independent trophic sensitivity of higher trophic-level nematodes compared with lower trophic-level ones. Therefore, our findings provide new insights into the mechanisms underlying nematode body size structure in alpine grasslands and highlight that traits independent of size need to be found to explain increased sensitivity of higher trophic-level nematodes to climatic and edaphic properties, which might affect soil functioning 
650 4 |a Journal Article 
650 4 |a Tibetan grasslands 
650 4 |a biotic and abiotic factors 
650 4 |a climate change 
650 4 |a community-weighted mean 
650 4 |a nematode biomass 
650 4 |a trophic sensitivity 
650 7 |a Soil  |2 NLM 
650 7 |a Water  |2 NLM 
650 7 |a 059QF0KO0R  |2 NLM 
700 1 |a Wilschut, Rutger A  |e verfasserin  |4 aut 
700 1 |a Luo, Shuaiwei  |e verfasserin  |4 aut 
700 1 |a Chen, Han  |e verfasserin  |4 aut 
700 1 |a Wang, Xiangtai  |e verfasserin  |4 aut 
700 1 |a Du, Guozhen  |e verfasserin  |4 aut 
700 1 |a Geisen, Stefan  |e verfasserin  |4 aut 
773 0 8 |i Enthalten in  |t Global change biology  |d 1999  |g 29(2023), 17 vom: 04. Sept., Seite 4898-4909  |w (DE-627)NLM098239996  |x 1365-2486  |7 nnns 
773 1 8 |g volume:29  |g year:2023  |g number:17  |g day:04  |g month:09  |g pages:4898-4909 
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