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Changes in Biomass and Diversity of Soil Macrofauna along a Climatic Gradient in European Boreal Forests

Kozlov, Mikhail V. and Zverev, Vitali and Gusarov, Vladimir I. and Korobushkin, Daniil I. and Krivosheina, Nina P. and Mattila, Jaakko and Mutanen, Marko and Popova, Anna and Prosvirov, Alexander S. and Punttila, Pekka and Soderman, Guy and Stanska, Marzena and Taylor, Astrid and Vahtera, Varpu and Zubrii, Natalia A. and Zvereva, Elena L. (2022). Changes in Biomass and Diversity of Soil Macrofauna along a Climatic Gradient in European Boreal Forests. Insects. 13 :1 , 94
[Research article]

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Abstract

Simple Summary We used a 1000 km long latitudinal gradient in north-western Russia to study the potential impacts of a changing climate on soil invertebrates visible by a naked eye (insects, spiders, earthworms etc.). We extracted these animals from soil, weighed them and identified them to the species level. We found that the diversity of soil invertebrates decreased towards the north, whereas the latitudinal pattern in biomass depended on the animal's feeding habit. The biomass of species feeding on live plant roots and fungal mycelia decreased towards the north, whereas the biomass of species feeding on dead plant tissues and live invertebrates showed no significant latitudinal changes. The discovery of this variation in latitudinal biomass patterns suggests that soil invertebrates from different feeding guilds may respond differently to climate change. As a result, the biomass ratio between consumers and their food resources (e.g., herbivores and plants, predators and prey) may change. We poorly understood how this change will affect the future structure and functions of boreal forest ecosystems. Latitudinal gradients allow insights into the factors that shape ecosystem structure and delimit ecosystem processes, particularly climate. We asked whether the biomass and diversity of soil macrofauna in boreal forests change systematically along a latitudinal gradient spanning from 60 degrees N to 69 degrees N. Invertebrates (3697 individuals) were extracted from 400 soil samples (20 x 20 cm, 30 cm depth) collected at ten sites in 2015-2016 and then weighed and identified. We discovered 265 species living in soil and on the soil surface; their average density was 0.486 g d center dot w center dot m(-2). The species-level diversity decreased from low to high latitudes. The biomass of soil macrofauna showed no latitudinal changes in early summer but decreased towards the north in late summer. This variation among study sites was associated with the decrease in mean annual temperature by ca 5 degrees C and with variation in fine root biomass. The biomass of herbivores and fungivores decreased towards the north, whereas the biomass of detritivores and predators showed no significant latitudinal changes. This variation in latitudinal biomass patterns among the soil macrofauna feeding guilds suggests that these guilds may respond differently to climate change, with poorly understood consequences for ecosystem structure and functions.

Authors/Creators:Kozlov, Mikhail V. and Zverev, Vitali and Gusarov, Vladimir I. and Korobushkin, Daniil I. and Krivosheina, Nina P. and Mattila, Jaakko and Mutanen, Marko and Popova, Anna and Prosvirov, Alexander S. and Punttila, Pekka and Soderman, Guy and Stanska, Marzena and Taylor, Astrid and Vahtera, Varpu and Zubrii, Natalia A. and Zvereva, Elena L.
Title:Changes in Biomass and Diversity of Soil Macrofauna along a Climatic Gradient in European Boreal Forests
Series Name/Journal:Insects
Year of publishing :2022
Volume:13
Number:1
Article number:94
Number of Pages:13
Publisher:MDPI
ISSN:2075-4450
Language:English
Publication Type:Research article
Article category:Scientific peer reviewed
Version:Published version
Copyright:Creative Commons: Attribution 4.0
Full Text Status:Public
Subjects:(A) Swedish standard research categories 2011 > 1 Natural sciences > 106 Biological Sciences (Medical to be 3 and Agricultural to be 4) > Ecology
(A) Swedish standard research categories 2011 > 1 Natural sciences > 106 Biological Sciences (Medical to be 3 and Agricultural to be 4) > Zoology
(A) Swedish standard research categories 2011 > 1 Natural sciences > 105 Earth and Related Environmental Sciences > Climate Research
Keywords:climate change, biomass, biotic interactions, diversity, environmental gradient, feeding guilds, latitudinal variation, macroecology, macrofauna
URN:NBN:urn:nbn:se:slu:epsilon-p-115864
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-p-115864
Additional ID:
Type of IDID
DOI10.3390/insects13010094
Web of Science (WoS)000746283900001
ID Code:27209
Faculty:NJ - Fakulteten för naturresurser och jordbruksvetenskap
Department:(NL, NJ) > Dept. of Ecology
(S) > Dept. of Ecology
Deposited By: SLUpub Connector
Deposited On:25 Feb 2022 11:25
Metadata Last Modified:12 Sep 2022 08:20

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