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A heterogeneous landscape does not guarantee high crop pollination
The expansion of pollinator-dependent crops, especially in the developing world, together with reports of worldwide pollinator declines, raises concern of possible yield gaps. Farmers directly reliant on pollination services for food supply often live in regions where our knowledge of pollination se...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
The Royal Society
2016
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5031663/ https://www.ncbi.nlm.nih.gov/pubmed/27629036 http://dx.doi.org/10.1098/rspb.2016.1472 |
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author | Samnegård, Ulrika Hambäck, Peter A. Lemessa, Debissa Nemomissa, Sileshi Hylander, Kristoffer |
author_facet | Samnegård, Ulrika Hambäck, Peter A. Lemessa, Debissa Nemomissa, Sileshi Hylander, Kristoffer |
author_sort | Samnegård, Ulrika |
collection | PubMed |
description | The expansion of pollinator-dependent crops, especially in the developing world, together with reports of worldwide pollinator declines, raises concern of possible yield gaps. Farmers directly reliant on pollination services for food supply often live in regions where our knowledge of pollination services is poor. In a manipulative experiment replicated at 23 sites across an Ethiopian agricultural landscape, we found poor pollination services and severe pollen limitation in a common oil crop. With supplementary pollination, the yield increased on average by 91%. Despite the heterogeneous agricultural matrix, we found a low bee abundance, which may explain poor pollination services. The variation in pollen limitation was unrelated to surrounding forest cover, local bee richness and bee abundance. While practices that commonly increase pollinators (restricted pesticide use, flower strips) are an integral part of the landscape, these elements are apparently insufficient. Management to increase pollination services is therefore in need of urgent investigation. |
format | Online Article Text |
id | pubmed-5031663 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2016 |
publisher | The Royal Society |
record_format | MEDLINE/PubMed |
spelling | pubmed-50316632016-09-22 A heterogeneous landscape does not guarantee high crop pollination Samnegård, Ulrika Hambäck, Peter A. Lemessa, Debissa Nemomissa, Sileshi Hylander, Kristoffer Proc Biol Sci Research Articles The expansion of pollinator-dependent crops, especially in the developing world, together with reports of worldwide pollinator declines, raises concern of possible yield gaps. Farmers directly reliant on pollination services for food supply often live in regions where our knowledge of pollination services is poor. In a manipulative experiment replicated at 23 sites across an Ethiopian agricultural landscape, we found poor pollination services and severe pollen limitation in a common oil crop. With supplementary pollination, the yield increased on average by 91%. Despite the heterogeneous agricultural matrix, we found a low bee abundance, which may explain poor pollination services. The variation in pollen limitation was unrelated to surrounding forest cover, local bee richness and bee abundance. While practices that commonly increase pollinators (restricted pesticide use, flower strips) are an integral part of the landscape, these elements are apparently insufficient. Management to increase pollination services is therefore in need of urgent investigation. The Royal Society 2016-09-14 /pmc/articles/PMC5031663/ /pubmed/27629036 http://dx.doi.org/10.1098/rspb.2016.1472 Text en © 2016 The Authors. http://creativecommons.org/licenses/by/4.0/ Published by the Royal Society under the terms of the Creative Commons Attribution License http://creativecommons.org/licenses/by/4.0/, which permits unrestricted use, provided the original author and source are credited. |
spellingShingle | Research Articles Samnegård, Ulrika Hambäck, Peter A. Lemessa, Debissa Nemomissa, Sileshi Hylander, Kristoffer A heterogeneous landscape does not guarantee high crop pollination |
title | A heterogeneous landscape does not guarantee high crop pollination |
title_full | A heterogeneous landscape does not guarantee high crop pollination |
title_fullStr | A heterogeneous landscape does not guarantee high crop pollination |
title_full_unstemmed | A heterogeneous landscape does not guarantee high crop pollination |
title_short | A heterogeneous landscape does not guarantee high crop pollination |
title_sort | heterogeneous landscape does not guarantee high crop pollination |
topic | Research Articles |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5031663/ https://www.ncbi.nlm.nih.gov/pubmed/27629036 http://dx.doi.org/10.1098/rspb.2016.1472 |
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