Quantifying services and disservices provided by insects and vertebrates in cacao agroforestry landscapes
Animals provide services such as pollination and pest control in cacao agro- forestry systems, but also disservices. Yet, their combined contributions to crop yield and fruit loss are mostly unclear. In a full-factorial field exper- iment in northwestern Peru, we excluded flying insects, ants, birds and bats from cacao trees and assessed several productivity indicators. We quan- tified the contribution of each group to fruit set, fruit loss and marketable yield and evaluated how forest distance and canopy closure affected pro- ductivity. Fruit set dropped (from 1.7% to 0.3%) when flying insects were excluded and tripled at intermediate (40%) compared to high (greater than 80%) canopy cover in the non-exclusion treatment. Fruit set also dropped with bird and bat exclusion, potentially due to increased abundances of arthropods preying on pollinators or flower herbivores. Overall, cacao yields more than doubled when birds and bats had access to trees. Ants were generally associated with fruit loss, but also with yield increases in agroforests close to forest. We also evidenced disservices generated by squir- rels, leading to significant fruit losses. Our findings show that several functional groups contribute to high cacao yield, while trade-offs between services and disservices need to be integrated in local and landscape-scale sustainable cacao agroforestry management
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Format: | Journal Article biblioteca |
Language: | English |
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Royal Society
2022-09-14
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Subjects: | pollination, vertebrates, arthropoda, ecosystem services, cover plants, cocoa, agroforestry, polinización, vertebrados, |
Online Access: | https://hdl.handle.net/10568/121948 https://doi.org/10.1098/rspb.2022.1309 |
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dig-cgspace-10568-1219482023-12-08T19:36:04Z Quantifying services and disservices provided by insects and vertebrates in cacao agroforestry landscapes Vansynghel, Justine Ocampo-ariza, Carolina Maas, Bea Martin, Emily A. Thomas, Evert Hanf-dressler, Tara Schumacher, Nils-Christian Ulloque-samatelo, Carlos Yovera, Fredy F. Tscharntke, Teja Steffan-dewenter, Ingolf pollination vertebrates arthropoda ecosystem services cover plants cocoa agroforestry polinización vertebrados Animals provide services such as pollination and pest control in cacao agro- forestry systems, but also disservices. Yet, their combined contributions to crop yield and fruit loss are mostly unclear. In a full-factorial field exper- iment in northwestern Peru, we excluded flying insects, ants, birds and bats from cacao trees and assessed several productivity indicators. We quan- tified the contribution of each group to fruit set, fruit loss and marketable yield and evaluated how forest distance and canopy closure affected pro- ductivity. Fruit set dropped (from 1.7% to 0.3%) when flying insects were excluded and tripled at intermediate (40%) compared to high (greater than 80%) canopy cover in the non-exclusion treatment. Fruit set also dropped with bird and bat exclusion, potentially due to increased abundances of arthropods preying on pollinators or flower herbivores. Overall, cacao yields more than doubled when birds and bats had access to trees. Ants were generally associated with fruit loss, but also with yield increases in agroforests close to forest. We also evidenced disservices generated by squir- rels, leading to significant fruit losses. Our findings show that several functional groups contribute to high cacao yield, while trade-offs between services and disservices need to be integrated in local and landscape-scale sustainable cacao agroforestry management 2022-09-14 2022-09-27T12:52:39Z 2022-09-27T12:52:39Z Journal Article Vansynghel, J.; Ocampo-ariza, C.; Maas, B.; Martin, E.A.; Thomas, .; Hanf-dressler, T.; Schumacher, N.C.; Ulloque-samatelo, C.; Yovera, F.F.; Tscharntke, T.; Steffan-dewenter, I. (2022) Quantifying services and disservices provided by insects and vertebrates in cacao agroforestry landscapes. Proceedings of the Royal Society B: Biological Sciences 289: 20221309. 9 p. ISSN: 0962-8452 0962-8452 https://hdl.handle.net/10568/121948 https://doi.org/10.1098/rspb.2022.1309 en CC-BY-4.0 Open Access 9 p. application/pdf Royal Society Proceedings of the Royal Society B: Biological Sciences |
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pollination vertebrates arthropoda ecosystem services cover plants cocoa agroforestry polinización vertebrados pollination vertebrates arthropoda ecosystem services cover plants cocoa agroforestry polinización vertebrados |
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pollination vertebrates arthropoda ecosystem services cover plants cocoa agroforestry polinización vertebrados pollination vertebrates arthropoda ecosystem services cover plants cocoa agroforestry polinización vertebrados Vansynghel, Justine Ocampo-ariza, Carolina Maas, Bea Martin, Emily A. Thomas, Evert Hanf-dressler, Tara Schumacher, Nils-Christian Ulloque-samatelo, Carlos Yovera, Fredy F. Tscharntke, Teja Steffan-dewenter, Ingolf Quantifying services and disservices provided by insects and vertebrates in cacao agroforestry landscapes |
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Animals provide services such as pollination and pest control in cacao agro- forestry systems, but also disservices. Yet, their combined contributions to crop yield and fruit loss are mostly unclear. In a full-factorial field exper- iment in northwestern Peru, we excluded flying insects, ants, birds and bats from cacao trees and assessed several productivity indicators. We quan- tified the contribution of each group to fruit set, fruit loss and marketable yield and evaluated how forest distance and canopy closure affected pro- ductivity. Fruit set dropped (from 1.7% to 0.3%) when flying insects were excluded and tripled at intermediate (40%) compared to high (greater than 80%) canopy cover in the non-exclusion treatment. Fruit set also dropped with bird and bat exclusion, potentially due to increased abundances of arthropods preying on pollinators or flower herbivores. Overall, cacao yields more than doubled when birds and bats had access to trees. Ants were generally associated with fruit loss, but also with yield increases in agroforests close to forest. We also evidenced disservices generated by squir- rels, leading to significant fruit losses. Our findings show that several functional groups contribute to high cacao yield, while trade-offs between services and disservices need to be integrated in local and landscape-scale sustainable cacao agroforestry management |
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Journal Article |
topic_facet |
pollination vertebrates arthropoda ecosystem services cover plants cocoa agroforestry polinización vertebrados |
author |
Vansynghel, Justine Ocampo-ariza, Carolina Maas, Bea Martin, Emily A. Thomas, Evert Hanf-dressler, Tara Schumacher, Nils-Christian Ulloque-samatelo, Carlos Yovera, Fredy F. Tscharntke, Teja Steffan-dewenter, Ingolf |
author_facet |
Vansynghel, Justine Ocampo-ariza, Carolina Maas, Bea Martin, Emily A. Thomas, Evert Hanf-dressler, Tara Schumacher, Nils-Christian Ulloque-samatelo, Carlos Yovera, Fredy F. Tscharntke, Teja Steffan-dewenter, Ingolf |
author_sort |
Vansynghel, Justine |
title |
Quantifying services and disservices provided by insects and vertebrates in cacao agroforestry landscapes |
title_short |
Quantifying services and disservices provided by insects and vertebrates in cacao agroforestry landscapes |
title_full |
Quantifying services and disservices provided by insects and vertebrates in cacao agroforestry landscapes |
title_fullStr |
Quantifying services and disservices provided by insects and vertebrates in cacao agroforestry landscapes |
title_full_unstemmed |
Quantifying services and disservices provided by insects and vertebrates in cacao agroforestry landscapes |
title_sort |
quantifying services and disservices provided by insects and vertebrates in cacao agroforestry landscapes |
publisher |
Royal Society |
publishDate |
2022-09-14 |
url |
https://hdl.handle.net/10568/121948 https://doi.org/10.1098/rspb.2022.1309 |
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