Below‐ground responses to insect herbivory in ecosystems with woody plant canopies: A meta‐analysis
Abstract Insect herbivory can have important consequences for the functioning of terrestrial ecosystems. Despite a growing recognition of the role of herbivores in above‐ground–below‐ground interactions, our current understanding is mainly restricted to studies of vertebrates in grassland and tundra...
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crwiley:10.1111/1365-2745.13319 2024-09-15T18:39:52+00:00 Below‐ground responses to insect herbivory in ecosystems with woody plant canopies: A meta‐analysis Kristensen, Jeppe Å. Rousk, Johannes Metcalfe, Daniel B. Kardol, Paul European Research Council Vetenskapsrådet 2019 http://dx.doi.org/10.1111/1365-2745.13319 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2F1365-2745.13319 https://onlinelibrary.wiley.com/doi/pdf/10.1111/1365-2745.13319 https://onlinelibrary.wiley.com/doi/full-xml/10.1111/1365-2745.13319 https://besjournals.onlinelibrary.wiley.com/doi/pdf/10.1111/1365-2745.13319 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Journal of Ecology volume 108, issue 3, page 917-930 ISSN 0022-0477 1365-2745 journal-article 2019 crwiley https://doi.org/10.1111/1365-2745.13319 2024-08-06T04:13:36Z Abstract Insect herbivory can have important consequences for the functioning of terrestrial ecosystems. Despite a growing recognition of the role of herbivores in above‐ground–below‐ground interactions, our current understanding is mainly restricted to studies of vertebrates in grassland and tundra ecosystems, while ecosystems with tree‐like canopies (termed forests below) and invertebrates remain understudied. Here, we assess the current state of knowledge of one key aspect of plant–herbivore interactions by conducting a meta‐analysis of the peer‐reviewed literature on the below‐ground consequences of above‐ground insect herbivory in forest ecosystems. Main results are reported as aggregated relative effect sizes (Cohen's d ). We find that above‐ground insect herbivory reduced below‐ground carbon (C) allocation by plants to roots (−0.56) and root exudation (−0.85), causing shifts in root–symbiont communities, for example, a decrease (−0.67) in the abundance of ectomycorrhizal fungi. Microbial decomposer abundances showed no significant responses, while soil faunal abundances increased (0.50). C and nitrogen (N) mineralization rates (C: 0.48, N: 0.48) along with nutrient leaching (C: 0.30, N: 0.77) increased, with a stronger response to outbreak relative to background insect densities. The negative responses increased in strength in colder and dryer biomes while positive responses were reinforced in warmer and wetter biomes, thus extending previously shown effects for vertebrate herbivores to also include insect herbivory. The positive response by soil fauna to insect herbivory was the notable exception. This may be associated with the limited physical soil disturbance caused by insects compared to ungulates. Furthermore, we identified an under‐representation in the literature of large areas of boreal and tropical biomes calling for research priorities to fill these knowledge gaps. We present three recommendations for future research: addressing (a) biological drivers of biogeochemistry and response pathways, ... Article in Journal/Newspaper Tundra Wiley Online Library Journal of Ecology 108 3 917 930 |
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Wiley Online Library |
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crwiley |
language |
English |
description |
Abstract Insect herbivory can have important consequences for the functioning of terrestrial ecosystems. Despite a growing recognition of the role of herbivores in above‐ground–below‐ground interactions, our current understanding is mainly restricted to studies of vertebrates in grassland and tundra ecosystems, while ecosystems with tree‐like canopies (termed forests below) and invertebrates remain understudied. Here, we assess the current state of knowledge of one key aspect of plant–herbivore interactions by conducting a meta‐analysis of the peer‐reviewed literature on the below‐ground consequences of above‐ground insect herbivory in forest ecosystems. Main results are reported as aggregated relative effect sizes (Cohen's d ). We find that above‐ground insect herbivory reduced below‐ground carbon (C) allocation by plants to roots (−0.56) and root exudation (−0.85), causing shifts in root–symbiont communities, for example, a decrease (−0.67) in the abundance of ectomycorrhizal fungi. Microbial decomposer abundances showed no significant responses, while soil faunal abundances increased (0.50). C and nitrogen (N) mineralization rates (C: 0.48, N: 0.48) along with nutrient leaching (C: 0.30, N: 0.77) increased, with a stronger response to outbreak relative to background insect densities. The negative responses increased in strength in colder and dryer biomes while positive responses were reinforced in warmer and wetter biomes, thus extending previously shown effects for vertebrate herbivores to also include insect herbivory. The positive response by soil fauna to insect herbivory was the notable exception. This may be associated with the limited physical soil disturbance caused by insects compared to ungulates. Furthermore, we identified an under‐representation in the literature of large areas of boreal and tropical biomes calling for research priorities to fill these knowledge gaps. We present three recommendations for future research: addressing (a) biological drivers of biogeochemistry and response pathways, ... |
author2 |
Kardol, Paul European Research Council Vetenskapsrådet |
format |
Article in Journal/Newspaper |
author |
Kristensen, Jeppe Å. Rousk, Johannes Metcalfe, Daniel B. |
spellingShingle |
Kristensen, Jeppe Å. Rousk, Johannes Metcalfe, Daniel B. Below‐ground responses to insect herbivory in ecosystems with woody plant canopies: A meta‐analysis |
author_facet |
Kristensen, Jeppe Å. Rousk, Johannes Metcalfe, Daniel B. |
author_sort |
Kristensen, Jeppe Å. |
title |
Below‐ground responses to insect herbivory in ecosystems with woody plant canopies: A meta‐analysis |
title_short |
Below‐ground responses to insect herbivory in ecosystems with woody plant canopies: A meta‐analysis |
title_full |
Below‐ground responses to insect herbivory in ecosystems with woody plant canopies: A meta‐analysis |
title_fullStr |
Below‐ground responses to insect herbivory in ecosystems with woody plant canopies: A meta‐analysis |
title_full_unstemmed |
Below‐ground responses to insect herbivory in ecosystems with woody plant canopies: A meta‐analysis |
title_sort |
below‐ground responses to insect herbivory in ecosystems with woody plant canopies: a meta‐analysis |
publisher |
Wiley |
publishDate |
2019 |
url |
http://dx.doi.org/10.1111/1365-2745.13319 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2F1365-2745.13319 https://onlinelibrary.wiley.com/doi/pdf/10.1111/1365-2745.13319 https://onlinelibrary.wiley.com/doi/full-xml/10.1111/1365-2745.13319 https://besjournals.onlinelibrary.wiley.com/doi/pdf/10.1111/1365-2745.13319 |
genre |
Tundra |
genre_facet |
Tundra |
op_source |
Journal of Ecology volume 108, issue 3, page 917-930 ISSN 0022-0477 1365-2745 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/1365-2745.13319 |
container_title |
Journal of Ecology |
container_volume |
108 |
container_issue |
3 |
container_start_page |
917 |
op_container_end_page |
930 |
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1810484202259349504 |