The contribution of insects to global forest deadwood decomposition

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388971%3A_____%2F21%3A00546764" target="_blank" >RIV/61388971:_____/21:00546764 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.nature.com/articles/s41586-021-03740-8" target="_blank" >https://www.nature.com/articles/s41586-021-03740-8</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1038/s41586-021-03740-8" target="_blank" >10.1038/s41586-021-03740-8</a>

Jazyk výsledku

angličtina

Název v původním jazyce

The contribution of insects to global forest deadwood decomposition

Popis výsledku v původním jazyce

The amount of carbon stored in deadwood is equivalent to about 8 per cent of the global forest carbon stocks(1). The decomposition of deadwood is largely governed by climate(2-5) with decomposer groups-such as microorganisms and insects-contributing to variations in the decomposition rates(2,6,7). At the global scale, the contribution of insects to the decomposition of deadwood and carbon release remains poorly understood(7). Here we present a field experiment of wood decomposition across 55 forest sites and 6 continents. We find that the deadwood decomposition rates increase with temperature, and the strongest temperature effect is found at high precipitation levels. Precipitation affects the decomposition rates negatively at low temperatures and positively at high temperatures. As a net effect-including the direct consumption by insects and indirect effects through interactions with microorganisms-insects accelerate the decomposition in tropical forests (3.9% median mass loss per year). In temperate and boreal forests, we find weak positive and negative effects with a median mass loss of 0.9 per cent and0.1 per cent per year, respectively. Furthermore, we apply the experimentally derived decomposition function to a global map of deadwood carbon synthesized from empirical and remote-sensing data, obtaining an estimate of 10.9 +/- 3.2 petagram of carbon per year released from deadwood globally, with 93 per cent originating from tropical forests. Globally, the net effect of insects may account for 29 per cent of the carbon flux from deadwood, which suggests a functional importance of insects in the decomposition of deadwood and the carbon cycle.

Název v anglickém jazyce

The contribution of insects to global forest deadwood decomposition

Popis výsledku anglicky

The amount of carbon stored in deadwood is equivalent to about 8 per cent of the global forest carbon stocks(1). The decomposition of deadwood is largely governed by climate(2-5) with decomposer groups-such as microorganisms and insects-contributing to variations in the decomposition rates(2,6,7). At the global scale, the contribution of insects to the decomposition of deadwood and carbon release remains poorly understood(7). Here we present a field experiment of wood decomposition across 55 forest sites and 6 continents. We find that the deadwood decomposition rates increase with temperature, and the strongest temperature effect is found at high precipitation levels. Precipitation affects the decomposition rates negatively at low temperatures and positively at high temperatures. As a net effect-including the direct consumption by insects and indirect effects through interactions with microorganisms-insects accelerate the decomposition in tropical forests (3.9% median mass loss per year). In temperate and boreal forests, we find weak positive and negative effects with a median mass loss of 0.9 per cent and0.1 per cent per year, respectively. Furthermore, we apply the experimentally derived decomposition function to a global map of deadwood carbon synthesized from empirical and remote-sensing data, obtaining an estimate of 10.9 +/- 3.2 petagram of carbon per year released from deadwood globally, with 93 per cent originating from tropical forests. Globally, the net effect of insects may account for 29 per cent of the carbon flux from deadwood, which suggests a functional importance of insects in the decomposition of deadwood and the carbon cycle.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10606 - Microbiology

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2021

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Nature

ISSN

0028-0836

e-ISSN

1476-4687

Svazek periodika

597

Číslo periodika v rámci svazku

7874

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

8

Strana od-do

77-84

Kód UT WoS článku

000692498300016

EID výsledku v databázi Scopus

2-s2.0-85114145419