Biodiversity mediates top-down control in eelgrass ecosystems: a global comparative-experimental approach
Autor(a) principal: | |
---|---|
Data de Publicação: | 2015 |
Outros Autores: | , , , , , , , , , , , , , , , , , , , , , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10400.1/11449 |
Resumo: | Nutrient pollution and reduced grazing each can stimulate algal blooms as shown by numerous experiments. But because experiments rarely incorporate natural variation in environmental factors and biodiversity, conditions determining the relative strength of bottom-up and top-down forcing remain unresolved. We factorially added nutrients and reduced grazing at 15 sites across the range of the marine foundation species eelgrass (Zostera marina) to quantify how top-down and bottom-up control interact with natural gradients in biodiversity and environmental forcing. Experiments confirmed modest top-down control of algae, whereas fertilisation had no general effect. Unexpectedly, grazer and algal biomass were better predicted by cross-site variation in grazer and eelgrass diversity than by global environmental gradients. Moreover, these large-scale patterns corresponded strikingly with prior small-scale experiments. Our results link global and local evidence that biodiversity and top-down control strongly influence functioning of threatened seagrass ecosystems, and suggest that biodiversity is comparably important to global change stressors. |
id |
RCAP_dcd959829908619c7bf8ebc09bce495a |
---|---|
oai_identifier_str |
oai:sapientia.ualg.pt:10400.1/11449 |
network_acronym_str |
RCAP |
network_name_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository_id_str |
7160 |
spelling |
Biodiversity mediates top-down control in eelgrass ecosystems: a global comparative-experimental approachZostera-MarinaTrophic interactionsNutrient enrichmentMicrosatellite LociSeagrass ecosystemFunctional-roleDiversityCommunityEutrophicationPopulationsNutrient pollution and reduced grazing each can stimulate algal blooms as shown by numerous experiments. But because experiments rarely incorporate natural variation in environmental factors and biodiversity, conditions determining the relative strength of bottom-up and top-down forcing remain unresolved. We factorially added nutrients and reduced grazing at 15 sites across the range of the marine foundation species eelgrass (Zostera marina) to quantify how top-down and bottom-up control interact with natural gradients in biodiversity and environmental forcing. Experiments confirmed modest top-down control of algae, whereas fertilisation had no general effect. Unexpectedly, grazer and algal biomass were better predicted by cross-site variation in grazer and eelgrass diversity than by global environmental gradients. Moreover, these large-scale patterns corresponded strikingly with prior small-scale experiments. Our results link global and local evidence that biodiversity and top-down control strongly influence functioning of threatened seagrass ecosystems, and suggest that biodiversity is comparably important to global change stressors.National Science Foundation [OCE-1031061]Wiley-BlackwellSapientiaDuffy, J. EmmettReynolds, Pamela L.Bostroem, ChristofferCoyer, James A.Cusson, MathieuDonadi, SerenaDouglass, James G.Ekloef, Johan S.Engelen, Aschwin H.Eriksson, Britas KlemensFredriksen, SteinGamfeldt, LarsGustafsson, CamillaHoarau, GaliceHori, MasakazuHovel, KevinIken, KatrinLefcheck, Jonathan S.Moksnes, Per-OlavNakaoka, MasahiroO'Connor, Mary I.Olsen, Jeanine L.Richardson, J. PaulRuesink, Jennifer L.Sotka, Erik E.Thormar, JonasWhalen, Matthew A.Stachowicz, John J.2018-12-07T14:53:18Z2015-072015-07-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.1/11449eng1461-023X10.1111/ele.12448info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-07-24T10:23:15Zoai:sapientia.ualg.pt:10400.1/11449Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T20:02:57.442293Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
Biodiversity mediates top-down control in eelgrass ecosystems: a global comparative-experimental approach |
title |
Biodiversity mediates top-down control in eelgrass ecosystems: a global comparative-experimental approach |
spellingShingle |
Biodiversity mediates top-down control in eelgrass ecosystems: a global comparative-experimental approach Duffy, J. Emmett Zostera-Marina Trophic interactions Nutrient enrichment Microsatellite Loci Seagrass ecosystem Functional-role Diversity Community Eutrophication Populations |
title_short |
Biodiversity mediates top-down control in eelgrass ecosystems: a global comparative-experimental approach |
title_full |
Biodiversity mediates top-down control in eelgrass ecosystems: a global comparative-experimental approach |
title_fullStr |
Biodiversity mediates top-down control in eelgrass ecosystems: a global comparative-experimental approach |
title_full_unstemmed |
Biodiversity mediates top-down control in eelgrass ecosystems: a global comparative-experimental approach |
title_sort |
Biodiversity mediates top-down control in eelgrass ecosystems: a global comparative-experimental approach |
author |
Duffy, J. Emmett |
author_facet |
Duffy, J. Emmett Reynolds, Pamela L. Bostroem, Christoffer Coyer, James A. Cusson, Mathieu Donadi, Serena Douglass, James G. Ekloef, Johan S. Engelen, Aschwin H. Eriksson, Britas Klemens Fredriksen, Stein Gamfeldt, Lars Gustafsson, Camilla Hoarau, Galice Hori, Masakazu Hovel, Kevin Iken, Katrin Lefcheck, Jonathan S. Moksnes, Per-Olav Nakaoka, Masahiro O'Connor, Mary I. Olsen, Jeanine L. Richardson, J. Paul Ruesink, Jennifer L. Sotka, Erik E. Thormar, Jonas Whalen, Matthew A. Stachowicz, John J. |
author_role |
author |
author2 |
Reynolds, Pamela L. Bostroem, Christoffer Coyer, James A. Cusson, Mathieu Donadi, Serena Douglass, James G. Ekloef, Johan S. Engelen, Aschwin H. Eriksson, Britas Klemens Fredriksen, Stein Gamfeldt, Lars Gustafsson, Camilla Hoarau, Galice Hori, Masakazu Hovel, Kevin Iken, Katrin Lefcheck, Jonathan S. Moksnes, Per-Olav Nakaoka, Masahiro O'Connor, Mary I. Olsen, Jeanine L. Richardson, J. Paul Ruesink, Jennifer L. Sotka, Erik E. Thormar, Jonas Whalen, Matthew A. Stachowicz, John J. |
author2_role |
author author author author author author author author author author author author author author author author author author author author author author author author author author author |
dc.contributor.none.fl_str_mv |
Sapientia |
dc.contributor.author.fl_str_mv |
Duffy, J. Emmett Reynolds, Pamela L. Bostroem, Christoffer Coyer, James A. Cusson, Mathieu Donadi, Serena Douglass, James G. Ekloef, Johan S. Engelen, Aschwin H. Eriksson, Britas Klemens Fredriksen, Stein Gamfeldt, Lars Gustafsson, Camilla Hoarau, Galice Hori, Masakazu Hovel, Kevin Iken, Katrin Lefcheck, Jonathan S. Moksnes, Per-Olav Nakaoka, Masahiro O'Connor, Mary I. Olsen, Jeanine L. Richardson, J. Paul Ruesink, Jennifer L. Sotka, Erik E. Thormar, Jonas Whalen, Matthew A. Stachowicz, John J. |
dc.subject.por.fl_str_mv |
Zostera-Marina Trophic interactions Nutrient enrichment Microsatellite Loci Seagrass ecosystem Functional-role Diversity Community Eutrophication Populations |
topic |
Zostera-Marina Trophic interactions Nutrient enrichment Microsatellite Loci Seagrass ecosystem Functional-role Diversity Community Eutrophication Populations |
description |
Nutrient pollution and reduced grazing each can stimulate algal blooms as shown by numerous experiments. But because experiments rarely incorporate natural variation in environmental factors and biodiversity, conditions determining the relative strength of bottom-up and top-down forcing remain unresolved. We factorially added nutrients and reduced grazing at 15 sites across the range of the marine foundation species eelgrass (Zostera marina) to quantify how top-down and bottom-up control interact with natural gradients in biodiversity and environmental forcing. Experiments confirmed modest top-down control of algae, whereas fertilisation had no general effect. Unexpectedly, grazer and algal biomass were better predicted by cross-site variation in grazer and eelgrass diversity than by global environmental gradients. Moreover, these large-scale patterns corresponded strikingly with prior small-scale experiments. Our results link global and local evidence that biodiversity and top-down control strongly influence functioning of threatened seagrass ecosystems, and suggest that biodiversity is comparably important to global change stressors. |
publishDate |
2015 |
dc.date.none.fl_str_mv |
2015-07 2015-07-01T00:00:00Z 2018-12-07T14:53:18Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10400.1/11449 |
url |
http://hdl.handle.net/10400.1/11449 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
1461-023X 10.1111/ele.12448 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Wiley-Blackwell |
publisher.none.fl_str_mv |
Wiley-Blackwell |
dc.source.none.fl_str_mv |
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
instname_str |
Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
instacron_str |
RCAAP |
institution |
RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
collection |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository.name.fl_str_mv |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
repository.mail.fl_str_mv |
|
_version_ |
1799133263516663808 |