Reduced feeding activity of soil detritivores under warmer and drier conditions.
Reduced feeding activity of soil detritivores under warmer and drier conditions.
复制标题
在温暖和较干燥的条件下,土壤下降的饲喂活性降低。
DOI:
10.1038/s41558-017-0032-6
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发表时间:
2018-01
影响因子:
30.7
通讯作者:
Eisenhauer N
中科院分区:
文献类型:
--
作者:
Thakur MP;Reich PB;Hobbie SE;Stefanski A;Rich R;Rice KE;Eddy WC;Eisenhauer N
Anthropogenic warming is projected to trigger positive feedbacks to climate by enhancing carbon losses from the soil. While such losses are, in part, owing to increased decomposition of organic matter by invertebrate detritivores, it is unknown how detritivore feeding activity will change with warming, especially under drought conditions. Here, using four year manipulation experiments in two North American boreal forests, we investigate how temperature (ambient, +1.7 °C, +3.4 °C) and rainfall (ambient, -40% summer precipitation) perturbations influence detritivore feeding activity. In contrast to general expectations, warming had negligible net effects on detritivore feeding activity at ambient precipitation. However, when combined with precipitation reductions, warming decreased feeding activity by ~14%. As across all plots and dates, detritivore feeding activity was positively associated to bulk soil microbial respiration, our results suggest slower rates of decomposition of soil organic matter, and thus reduced positive feedbacks to climate under anthropogenic climate change.
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影响因子:
4.6
作者:
Eisenhauer N;Stefanski A;Fisichelli NA;Rice K;Rich R;Reich PB
通讯作者:
Reich PB
影响因子:
30.7
作者:
Hagerty, Shannon B.;van Groenigen, Kees Jan;Dijkstra, Paul
通讯作者:
Dijkstra, Paul
影响因子:
4.8
作者:
Eisenhauer, Nico;Wirsch, Daniela;Steinauer, Katja
通讯作者:
Steinauer, Katja
影响因子:
11.6
作者:
Allison, Steven D.;Treseder, Kathleen K.
通讯作者:
Treseder, Kathleen K.
影响因子:
64.8
作者:
Bond-Lamberty, Ben;Thomson, Allison
通讯作者:
Thomson, Allison