Ambient and substrate energy influence decomposer diversity differentially across trophic levels.

Kriegel, Peter; Vogel, Sebastian; Angeleri, Romain; Baldrian, Petr; Borken, Werner; Bouget, Christophe; Brin, Antoine; Bussler, Heinz; Cocciufa, Cristiana; Feldmann, Benedikt; Gossner, Martin M; Haeler, Elena; Hagge, Jonas; Hardersen, Sönke; Hartmann, Henrik; Hjältén, Joakim; Kotowska, Martyna M; Lachat, Thibault; Larrieu, Laurent; Leverkus, Alexandro B; ... (2023). Ambient and substrate energy influence decomposer diversity differentially across trophic levels. Ecology letters, 26(7), pp. 1157-1173. Wiley 10.1111/ele.14227

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The species-energy hypothesis predicts increasing biodiversity with increasing energy in ecosystems. Proxies for energy availability are often grouped into ambient energy (i.e., solar radiation) and substrate energy (i.e., non-structural carbohydrates or nutritional content). The relative importance of substrate energy is thought to decrease with increasing trophic level from primary consumers to predators, with reciprocal effects of ambient energy. Yet, empirical tests are lacking. We compiled data on 332,557 deadwood-inhabiting beetles of 901 species reared from wood of 49 tree species across Europe. Using host-phylogeny-controlled models, we show that the relative importance of substrate energy versus ambient energy decreases with increasing trophic levels: the diversity of zoophagous and mycetophagous beetles was determined by ambient energy, while non-structural carbohydrate content in woody tissues determined that of xylophagous beetles. Our study thus overall supports the species-energy hypothesis and specifies that the relative importance of ambient temperature increases with increasing trophic level with opposite effects for substrate energy.

Item Type:

Journal Article (Original Article)

Division/Institute:

08 Faculty of Science > Department of Biology > Institute of Ecology and Evolution (IEE)
08 Faculty of Science > Department of Biology > Institute of Ecology and Evolution (IEE) > Conservation Biology

UniBE Contributor:

Angeleri, Romain

Subjects:

500 Science > 570 Life sciences; biology

ISSN:

1461-0248

Publisher:

Wiley

Language:

English

Submitter:

Pubmed Import

Date Deposited:

09 May 2023 12:48

Last Modified:

24 Jun 2023 00:14

Publisher DOI:

10.1111/ele.14227

PubMed ID:

37156097

Uncontrolled Keywords:

Europe biodiversity coleoptera deadwood saproxylic species-energy hypothesis trophic guild

BORIS DOI:

10.48350/182403

URI:

https://boris.unibe.ch/id/eprint/182403

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