The multiple-mechanisms hypothesis of biodiversity–stability relationships

Eisenhauer, Nico; Mueller, Kevin; Ebeling, Anne; Gleixner, Gerd; Huang, Yuanyuan; Madaj, Anna-Maria; Roscher, Christiane; Weigelt, Alexandra; Bahn, Michael; Bonkowski, Michael; Brose, Ulrich; Cesarz, Simone; Feilhauer, Hannes; Guimaraes-Steinicke, Claudia; Heintz-Buschart, Anna; Hines, Jes; Lange, Markus; Meyer, Sebastian T.; Mohanbabu, Neha; Mommer, Liesje; Neuhauser, Sigrid; Oelmann, Yvonne; Rahmanian, Soroor; Sasaki, Takehiro; Scheu, Stefan; Schielzeth, Holger; Schmid, Bernhard; Schloter, Michael; Schulz, Stefanie; Unsicker, Sybille B.; Vogel, Cordula; Weisser, Wolfgang W.; Isbell, Forest

doi:10.1016/j.baae.2024.07.004

Cited by 4 publications

References 123 publications

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Summer primary production of Arctic kelp communities is more affected by duration than magnitude of simulated marine heatwaves

Miller,

Gazeau,

Lebrun

et al. 2024

Ecology and Evolution

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Fjord systems in the Norwegian Arctic are experiencing an increasing frequency and magnitude of marine heatwaves. These episodic heat stress events can have varying degrees of acute impacts on primary production and nutrient uptake of mixed kelp communities, as well as modifying the biogeochemical cycling in nearshore systems where vast areas of kelp create structural habitat. To assess the impact of future marine heatwaves on kelp communities, we conducted a 23 day mesocosm experiment exposing mixed kelp communities to warming and heatwave scenarios projected for the year 2100. Three treatments were considered: a constant warming (+1.8°C from the control), a medium magnitude and long duration heatwave event (+2.8°C from the control for 13 days), and two short‐term, more intense, heatwaves(5 day long scenarios with temperature peaks at +3.9°C from the control). The results show that both marine heatwave treatments reduced net community production, whereas the constant warm temperature treatment displayed no difference from the control. The long marine heatwave scenario resulted in reduced accumulated net community production, indicating that prolonged exposure had a greater severity than two high magnitude, short‐term heatwave events. We estimated an 11°C temperature threshold at which negative effects to primary production appeared present. We highlight that marine heatwaves can induce sublethal effects on kelp communities by depressing net community production. These results are placed in the context of potential physiological resilience of kelp communities and implications of reduced net community production to future Arctic fjord environmental conditions.

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Summer primary production of Arctic kelp communities is more affected by duration than magnitude of simulated marine heatwaves

Miller,

Gazeau,

Lebrun

et al. 2024

Ecology and Evolution

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Supraglacial and subglacial ecosystems contribute differently towards proglacial ecosystem communities in Kuoqionggangri Glacier, Tibetan Plateau

Zhang,

Liu,

Liu

et al. 2024

Commun Earth Environ

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Selection strengthens the relationship between plant diversity and the metabolic profile ofPlantago lanceolata

Medina-van Berkum,

De Giorgi,

Rothe

et al. 2024

Preprint

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Plants growing in biodiverse communities often increase productivity, but how plant diversity impacts the metabolome and the underlying ecological and evolutionary processes remains unclear. This study investigated how plant species diversity and selection for growing in different diversity environments affects the leaf metabolome of Plantago lanceolata. We compared the metabolites of plants derived from those that had been selected in the Jena Experiment for 17 years in plant communities with differing plant diversity with the metabolites of naive plants not subjected to this selection. The metabolic profiles of selected P. lanceolata phytometers were also compared after growing in experimental environments varying in plant species richness, soil history, and community plant history. Results showed volatile compound diversity in P. lanceolata decreased with plant species richness, primarily due to phenotypic plasticity rather than selection. Soil history further strengthened this relationship. Conversely, non-volatile compound diversity increased with plant species richness, but only in phytometers subjected diversity-driven selection. These effects were more pronounced when plants shared soil-plant history with their community. In summary, our study revealed that both plastic and adaptative responses shape the metabolome of P. lanceolata in relation to plant diversity with these effects becoming stronger as plant and soil communities mature.

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The multiple-mechanisms hypothesis of biodiversity–stability relationships

Cited by 4 publications

References 123 publications

Summer primary production of Arctic kelp communities is more affected by duration than magnitude of simulated marine heatwaves

Summer primary production of Arctic kelp communities is more affected by duration than magnitude of simulated marine heatwaves

Supraglacial and subglacial ecosystems contribute differently towards proglacial ecosystem communities in Kuoqionggangri Glacier, Tibetan Plateau

Selection strengthens the relationship between plant diversity and the metabolic profile ofPlantago lanceolata

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