Soil eutrophication shaped the composition of pollinator assemblages during the past century

Atmospheric nitrogen deposition and other sources of environmental eutrophication have increased substantially over the past century worldwide, notwithstanding the recent declining trends in Europe. Despite the recognized susceptibility of plants to eutrophication, few studies evaluated how impacts...

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Main Authors: Carvalheiro, L, Biesmeijer, J, Franzén, M, Aguirre‐Gutiérrez, J, Garibaldi, L, Helm, A, Michez, D, Pöyry, J, Reemer, M, Schweiger, O, Leon Van Den, B, Wallisdevries, M, Kunin, W
Format: Journal article
Language:English
Published: Wiley 2019
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author Carvalheiro, L
Biesmeijer, J
Franzén, M
Aguirre‐Gutiérrez, J
Garibaldi, L
Helm, A
Michez, D
Pöyry, J
Reemer, M
Schweiger, O
Leon Van Den, B
Wallisdevries, M
Kunin, W
author_facet Carvalheiro, L
Biesmeijer, J
Franzén, M
Aguirre‐Gutiérrez, J
Garibaldi, L
Helm, A
Michez, D
Pöyry, J
Reemer, M
Schweiger, O
Leon Van Den, B
Wallisdevries, M
Kunin, W
author_sort Carvalheiro, L
collection OXFORD
description Atmospheric nitrogen deposition and other sources of environmental eutrophication have increased substantially over the past century worldwide, notwithstanding the recent declining trends in Europe. Despite the recognized susceptibility of plants to eutrophication, few studies evaluated how impacts propagate to consumers, such as pollinators. Here we aim to test if soil eutrophication contributes to the temporal dynamics of pollinators and their larval resources. We used a temporally and spatially explicit historical dataset with information on species occurrences to test if soil eutrophication, and more specifically nitrogen deposition, contributes to the patterns of change of plant and pollinator richness in the Netherlands over an 80 yr period. We focus on bees and butterflies, two groups for which we have good knowledge of larval resources that allowed us to define groups of species with different nitrogen related diet preferences. For each group we estimated richness changes between different 20‐yr periods at local, regional and national scale, using analytical methods developed for analyzing richness changes based on collection data. Our findings suggest that the impacts of soil eutrophication on plant communities propagate to higher trophic levels, but with a time‐lag. Pollinators with nitrogen‐related diet preferences were particularly affected, in turn potentially impairing the performance of pollinator‐dependent plants. Pollinator declines continued even after their focal plants started to recover. In addition, our results suggest that current levels of nitrogen deposition still have a negative impact on most groups here analyzed, constraining richness recoveries and accentuating declines. Our results indicate that the global increase in nitrogen availability plays an important role in the ongoing pollinator decline. Consequently, species tolerances to soil nitrogen levels should be considered across all trophic levels in management plans that aim to halt biodiversity loss and enhance ecosystems services worldwide.
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spelling oxford-uuid:a80d2e74-ca42-4185-ae10-c69e89ac83132022-03-27T02:58:45ZSoil eutrophication shaped the composition of pollinator assemblages during the past centuryJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:a80d2e74-ca42-4185-ae10-c69e89ac8313EnglishSymplectic Elements at OxfordWiley2019Carvalheiro, LBiesmeijer, JFranzén, MAguirre‐Gutiérrez, JGaribaldi, LHelm, AMichez, DPöyry, JReemer, MSchweiger, OLeon Van Den, BWallisdevries, MKunin, WAtmospheric nitrogen deposition and other sources of environmental eutrophication have increased substantially over the past century worldwide, notwithstanding the recent declining trends in Europe. Despite the recognized susceptibility of plants to eutrophication, few studies evaluated how impacts propagate to consumers, such as pollinators. Here we aim to test if soil eutrophication contributes to the temporal dynamics of pollinators and their larval resources. We used a temporally and spatially explicit historical dataset with information on species occurrences to test if soil eutrophication, and more specifically nitrogen deposition, contributes to the patterns of change of plant and pollinator richness in the Netherlands over an 80 yr period. We focus on bees and butterflies, two groups for which we have good knowledge of larval resources that allowed us to define groups of species with different nitrogen related diet preferences. For each group we estimated richness changes between different 20‐yr periods at local, regional and national scale, using analytical methods developed for analyzing richness changes based on collection data. Our findings suggest that the impacts of soil eutrophication on plant communities propagate to higher trophic levels, but with a time‐lag. Pollinators with nitrogen‐related diet preferences were particularly affected, in turn potentially impairing the performance of pollinator‐dependent plants. Pollinator declines continued even after their focal plants started to recover. In addition, our results suggest that current levels of nitrogen deposition still have a negative impact on most groups here analyzed, constraining richness recoveries and accentuating declines. Our results indicate that the global increase in nitrogen availability plays an important role in the ongoing pollinator decline. Consequently, species tolerances to soil nitrogen levels should be considered across all trophic levels in management plans that aim to halt biodiversity loss and enhance ecosystems services worldwide.
spellingShingle Carvalheiro, L
Biesmeijer, J
Franzén, M
Aguirre‐Gutiérrez, J
Garibaldi, L
Helm, A
Michez, D
Pöyry, J
Reemer, M
Schweiger, O
Leon Van Den, B
Wallisdevries, M
Kunin, W
Soil eutrophication shaped the composition of pollinator assemblages during the past century
title Soil eutrophication shaped the composition of pollinator assemblages during the past century
title_full Soil eutrophication shaped the composition of pollinator assemblages during the past century
title_fullStr Soil eutrophication shaped the composition of pollinator assemblages during the past century
title_full_unstemmed Soil eutrophication shaped the composition of pollinator assemblages during the past century
title_short Soil eutrophication shaped the composition of pollinator assemblages during the past century
title_sort soil eutrophication shaped the composition of pollinator assemblages during the past century
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