Temperature and nutrient effects on the relative importance of brown and green pathways for stream ecosystem functioning: A mesocosm approach

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To cite this version:

Gossiaux, Alice and Rollin, Marc and Guérold, François and Felten,

Vincent and Laviale, Martin and Bachelet, Quentin and Poupin,

Pascal and Chauvet, Eric and Bec, Alexandre and Danger, Michael

Temperature and nutrient effects on the relative importance of

brown and green pathways for stream ecosystem functioning: A

mesocosm approach. (2020) Freshwater Biology, 65 (7). 1239-1255.

ISSN 0046-5070

Open Archive Toulouse Archive Ouverte

Official URL :

https://doi.org/10.1111/fwb.13474

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4

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1 France 2 3 5 6 France

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|

an upstream downstream

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c.

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3– 3– 3– 3– 3 2 3– 3 3– 3– 2 3

|

(b)

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Corylus avellana Alnus glutinosa Fagus sylvatica 2

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initial k 0

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2 g

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a

2

–1

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Sericostoma personatum and Odontocerum

albi-corne , Gammarus fossarum

Epeorus sylvicola

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SD p 3– 3– 3– 3– 3– p p > 0.05; p p p –1_day–1 –1 day–1 –1_day–1 p = 0. p p Flagellospora curvula Tetrachaetum elegans Clavariopsis aquatica Lunulospora

cur-vula Anguillospora crassa Articulospora

tetracladia Alatospora acuminata Alatospora pulchella Tricladium chaetocladium Tetracladium marchalianum Tripospermum myrti Anguillospora longissima Heliscella stellata Triscelophorus mono-sporum Heliscus lugdunensis

Flagellospora curvula

p Flagellospora curvula remained

n n 4+ – 4 SD SD SD SD SD SD a _1.33 _19.09 a a _1.22 b b a b b Note: p

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Lunulospora curvula

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p p p 2 p a 2 2 p p a/cm2 n SD SE

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p 2 p p

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–1_{in low}

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p p –1 – 1 p –1 p –1 2 p p

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p ω ω ω3 and 20:5ω p _ω p ω3 nor on 20:5ω

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Gammarus fossarum SD: SD –1 –1 SD k on k

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p SD

Gammarus fossarum Epeorus

Odontocerum Sericostoma

|

N N N N ω3 20:5_ω3 22:6ω3 Note: SD n

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a a b b

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|

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ω 20:5ω

ω

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Michael Danger

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Global warming of 1.5°C. An IPCC Special Report on the impacts of global warming of 1.5°C above pre-industrial levels and related global greenhouse gas emission pathways, in the context of strengthening the global response to the threat of climate change, sustainable development, and efforts to eradicate poverty

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