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. 2023 Jul;26(7):1157-1173.
doi: 10.1111/ele.14227. Epub 2023 May 8.

Ambient and substrate energy influence decomposer diversity differentially across trophic levels

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Free article

Ambient and substrate energy influence decomposer diversity differentially across trophic levels

Peter Kriegel et al. Ecol Lett. 2023 Jul.
Free article

Abstract

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.

Keywords: Europe; biodiversity; coleoptera; deadwood; saproxylic; species-energy hypothesis; trophic guild.

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References

REFERENCES

    1. Archibald, S.B., Bossert, W.H., Greenwood, D.R. & Farrell, B.D. (2010) Seasonality, the latitudinal gradient of diversity, and Eocene insects. Paleobiology, 36, 374-398.
    1. Arita, L.H., Furutani, S.C., Fukada, M.T. & Nakayama, T.R. (1993) Feeding response of the Chinese rose beetle (Coleoptera: Scarabaeidae) to nonstructural carbohydrates in plants. Journal of Economic Entomology, 86, 1416-1419.
    1. BayFORKLIM. (1996) Klimaatlas von Bayern. München: Bayrischer Klimaforschungsbund, c/o Metereologisches Institut der Universität München.
    1. Benbow, M.E., Barton, P.S., Ulyshen, M.D., Beasley, J.C., DeVault, T.L., Strickland, M.S. et al. (2019) Necrobiome framework for bridging decomposition ecology of autotrophically and heterotrophically derived organic matter. Ecological Monographs, 89, 1-29.
    1. Bouget, C., Brin, A. & Brustel, H. (2011) Exploring the “last biotic frontier”: are temperate forest canopies special for saproxylic beetles? Forest Ecology and Management, 261, 211-220.

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