Functional diversity mediates macroecological variation in plant-hummingbird interaction networks

Pietro Kiyoshi Maruyama; Jesper Sonne; Jeferson Vizentin-bugoni; Ana M. Martín González; Thais B. Zanata; Stefan Abrahamczyk; Ruben Alarcón; Andréa C. Araujo; Francielle P. Araújo; Andrea C. Baquero; Edgar Chávez-gonzález; Aline G. Coelho; Peter A. Cotton; D. Matthias Dehling; Erich Fischer; Glauco Kohler; Carlos Lara; Flor Maria G. Las-casas; Adriana O. Machado; Caio G. Machado; María A. Maglianesi; Tiago S. Malucelli; Oscar Humberto Marín-gómez; Paulo E. Oliveira; Juan Francisco Ornelas; Raul Ortiz-pulido; Mónica B. Ramírez-burbano; Márcia A. Rocca; Licléia C. Rodrigues; Liliana Rosero-lasprilla; Ana M. Rui; Brody Sandel; Jens-christian Svenning; Boris A. Tinoco; Isabela G. Varassin; Stella Watts; Carsten Rahbek; Marlies Sazima; Matthias Schleuning; Bo Dalsgaard

doi:10.1111/geb.v27.10

Functional diversity mediates macroecological variation in plant-hummingbird interaction networks

Pietro Kiyoshi Maruyama, Jesper Sonne, Jeferson Vizentin-bugoni, Ana M. Martín González, Thais B. Zanata, Stefan Abrahamczyk, Ruben Alarcón, Andréa C. Araujo, Francielle P. Araújo, Andrea C. Baquero, Edgar Chávez-gonzález, Aline G. Coelho, Peter A. Cotton, D. Matthias Dehling, Erich Fischer, Glauco Kohler, Carlos Lara, Flor Maria G. Las-casas, Adriana O. Machado, Caio G. MachadoMaría A. Maglianesi, Tiago S. Malucelli, Oscar Humberto Marín-gómez, Paulo E. Oliveira, Juan Francisco Ornelas, Raul Ortiz-pulido, Mónica B. Ramírez-burbano, Márcia A. Rocca, Licléia C. Rodrigues, Liliana Rosero-lasprilla, Ana M. Rui, Brody Sandel, Jens-christian Svenning, Boris A. Tinoco, Isabela G. Varassin, Stella Watts, Carsten Rahbek, Marlies Sazima, Matthias Schleuning, Bo Dalsgaard

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Abstract

Aim: Species interaction networks are known to vary in structure over large spatial scales. We investigated the hypothesis that environmental factors affect interaction network structure by influencing the functional diversity of ecological communities. Notably, we expect more functionally diverse communities to form interaction networks with a higher degree of niche partitioning. Location:: Americas. Time period:: Current. Major taxa studied:: Hummingbirds and their nectar plants. Methods: We used a large dataset comprising 74 quantitative plant–hummingbird interaction networks distributed across the Americas, along with morphological trait data for 158 hummingbird species. First, we used a model selection approach to evaluate associations between the environment (climate, topography and insularity), species richness and hummingbird functional diversity as predictors of network structure (niche partitioning, i.e., complementary specialization and modularity). Second, we used structural equation models (SEMs) to ask whether environmental predictors and species richness affect network structure directly and/or indirectly through their influence on hummingbird functional diversity. For a subset of 28 networks, we additionally evaluated whether plant functional diversity was associated with hummingbird functional diversity and network structure. Results: Precipitation, insularity and plant richness, together with hummingbird functional diversity (specifically, functional dispersion), were consistently strong predictors of niche partitioning in plant–hummingbird networks. Moreover, SEMs showed that environmental predictors and plant richness affected network structure both directly and indirectly through their effects on hummingbird functional diversity. Plant functional diversity, however, was unrelated to hummingbird functional diversity and network structure. Main conclusions:: We reveal the importance of hummingbird functional diversity for niche partitioning in plant–hummingbird interaction networks. The lack of support for similar effects for plant functional diversity potentially indicates that consumer functional diversity might be more important for structuring interaction networks than resource functional diversity. Changes in pollinator functional diversity are therefore likely to alter the structure of interaction networks and associated ecosystem functions.

Original language	English
Journal	Global Ecology and Biogeography
Volume	27
Issue number	10
Pages (from-to)	1186-1199
ISSN	1466-822X
DOIs	https://doi.org/10.1111/geb.v27.10
Publication status	Published - 1 Oct 2018

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Maruyama et al. FD ms GEB FinalAccepted author manuscript, 1.73 MB

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Maruyama, P. K., Sonne, J., Vizentin-bugoni, J., Martín González, A. M., Zanata, T. B., Abrahamczyk, S., Alarcón, R., Araujo, A. C., Araújo, F. P., Baquero, A. C., Chávez-gonzález, E., Coelho, A. G., Cotton, P. A., Dehling, D. M., Fischer, E., Kohler, G., Lara, C., Las-casas, F. M. G., Machado, A. O., ... Dalsgaard, B. (2018). Functional diversity mediates macroecological variation in plant-hummingbird interaction networks. Global Ecology and Biogeography, 27(10), 1186-1199. https://doi.org/10.1111/geb.v27.10

Maruyama, PK, Sonne, J, Vizentin-bugoni, J, Martín González, AM, Zanata, TB, Abrahamczyk, S, Alarcón, R, Araujo, AC, Araújo, FP, Baquero, AC, Chávez-gonzález, E, Coelho, AG, Cotton, PA, Dehling, DM, Fischer, E, Kohler, G, Lara, C, Las-casas, FMG, Machado, AO, Machado, CG, Maglianesi, MA, Malucelli, TS, Marín-gómez, OH, Oliveira, PE, Ornelas, JF, Ortiz-pulido, R, Ramírez-burbano, MB, Rocca, MA, Rodrigues, LC, Rosero-lasprilla, L, Rui, AM, Sandel, B, Svenning, J, Tinoco, BA, Varassin, IG, Watts, S, Rahbek, C, Sazima, M, Schleuning, M & Dalsgaard, B 2018, 'Functional diversity mediates macroecological variation in plant-hummingbird interaction networks', Global Ecology and Biogeography, vol. 27, no. 10, pp. 1186-1199. https://doi.org/10.1111/geb.v27.10

@article{76a06d240626405b845f4b02c718d3d2,

title = "Functional diversity mediates macroecological variation in plant-hummingbird interaction networks",

abstract = "Aim: Species interaction networks are known to vary in structure over large spatial scales. We investigated the hypothesis that environmental factors affect interaction network structure by influencing the functional diversity of ecological communities. Notably, we expect more functionally diverse communities to form interaction networks with a higher degree of niche partitioning. Location:: Americas. Time period:: Current. Major taxa studied:: Hummingbirds and their nectar plants. Methods: We used a large dataset comprising 74 quantitative plant–hummingbird interaction networks distributed across the Americas, along with morphological trait data for 158 hummingbird species. First, we used a model selection approach to evaluate associations between the environment (climate, topography and insularity), species richness and hummingbird functional diversity as predictors of network structure (niche partitioning, i.e., complementary specialization and modularity). Second, we used structural equation models (SEMs) to ask whether environmental predictors and species richness affect network structure directly and/or indirectly through their influence on hummingbird functional diversity. For a subset of 28 networks, we additionally evaluated whether plant functional diversity was associated with hummingbird functional diversity and network structure. Results: Precipitation, insularity and plant richness, together with hummingbird functional diversity (specifically, functional dispersion), were consistently strong predictors of niche partitioning in plant–hummingbird networks. Moreover, SEMs showed that environmental predictors and plant richness affected network structure both directly and indirectly through their effects on hummingbird functional diversity. Plant functional diversity, however, was unrelated to hummingbird functional diversity and network structure. Main conclusions:: We reveal the importance of hummingbird functional diversity for niche partitioning in plant–hummingbird interaction networks. The lack of support for similar effects for plant functional diversity potentially indicates that consumer functional diversity might be more important for structuring interaction networks than resource functional diversity. Changes in pollinator functional diversity are therefore likely to alter the structure of interaction networks and associated ecosystem functions.",

author = "Maruyama, {Pietro Kiyoshi} and Jesper Sonne and Jeferson Vizentin-bugoni and {Mart{\'i}n Gonz{\'a}lez}, {Ana M.} and Zanata, {Thais B.} and Stefan Abrahamczyk and Ruben Alarc{\'o}n and Araujo, {Andr{\'e}a C.} and Ara{\'u}jo, {Francielle P.} and Baquero, {Andrea C.} and Edgar Ch{\'a}vez-gonz{\'a}lez and Coelho, {Aline G.} and Cotton, {Peter A.} and Dehling, {D. Matthias} and Erich Fischer and Glauco Kohler and Carlos Lara and Las-casas, {Flor Maria G.} and Machado, {Adriana O.} and Machado, {Caio G.} and Maglianesi, {Mar{\'i}a A.} and Malucelli, {Tiago S.} and Mar{\'i}n-g{\'o}mez, {Oscar Humberto} and Oliveira, {Paulo E.} and Ornelas, {Juan Francisco} and Raul Ortiz-pulido and Ram{\'i}rez-burbano, {M{\'o}nica B.} and Rocca, {M{\'a}rcia A.} and Rodrigues, {Licl{\'e}ia C.} and Liliana Rosero-lasprilla and Rui, {Ana M.} and Brody Sandel and Jens-christian Svenning and Tinoco, {Boris A.} and Varassin, {Isabela G.} and Stella Watts and Carsten Rahbek and Marlies Sazima and Matthias Schleuning and Bo Dalsgaard",

year = "2018",

month = oct,

day = "1",

doi = "10.1111/geb.v27.10",

language = "English",

volume = "27",

pages = "1186--1199",

journal = "Global Ecology and Biogeography",

issn = "1466-822X",

publisher = "Wiley-Blackwell",

number = "10",

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TY - JOUR

T1 - Functional diversity mediates macroecological variation in plant-hummingbird interaction networks

AU - Maruyama, Pietro Kiyoshi

AU - Sonne, Jesper

AU - Vizentin-bugoni, Jeferson

AU - Martín González, Ana M.

AU - Zanata, Thais B.

AU - Abrahamczyk, Stefan

AU - Alarcón, Ruben

AU - Araujo, Andréa C.

AU - Araújo, Francielle P.

AU - Baquero, Andrea C.

AU - Chávez-gonzález, Edgar

AU - Coelho, Aline G.

AU - Cotton, Peter A.

AU - Dehling, D. Matthias

AU - Fischer, Erich

AU - Kohler, Glauco

AU - Lara, Carlos

AU - Las-casas, Flor Maria G.

AU - Machado, Adriana O.

AU - Machado, Caio G.

AU - Maglianesi, María A.

AU - Malucelli, Tiago S.

AU - Marín-gómez, Oscar Humberto

AU - Oliveira, Paulo E.

AU - Ornelas, Juan Francisco

AU - Ortiz-pulido, Raul

AU - Ramírez-burbano, Mónica B.

AU - Rocca, Márcia A.

AU - Rodrigues, Licléia C.

AU - Rosero-lasprilla, Liliana

AU - Rui, Ana M.

AU - Sandel, Brody

AU - Svenning, Jens-christian

AU - Tinoco, Boris A.

AU - Varassin, Isabela G.

AU - Watts, Stella

AU - Rahbek, Carsten

AU - Sazima, Marlies

AU - Schleuning, Matthias

AU - Dalsgaard, Bo

PY - 2018/10/1

Y1 - 2018/10/1

N2 - Aim: Species interaction networks are known to vary in structure over large spatial scales. We investigated the hypothesis that environmental factors affect interaction network structure by influencing the functional diversity of ecological communities. Notably, we expect more functionally diverse communities to form interaction networks with a higher degree of niche partitioning. Location:: Americas. Time period:: Current. Major taxa studied:: Hummingbirds and their nectar plants. Methods: We used a large dataset comprising 74 quantitative plant–hummingbird interaction networks distributed across the Americas, along with morphological trait data for 158 hummingbird species. First, we used a model selection approach to evaluate associations between the environment (climate, topography and insularity), species richness and hummingbird functional diversity as predictors of network structure (niche partitioning, i.e., complementary specialization and modularity). Second, we used structural equation models (SEMs) to ask whether environmental predictors and species richness affect network structure directly and/or indirectly through their influence on hummingbird functional diversity. For a subset of 28 networks, we additionally evaluated whether plant functional diversity was associated with hummingbird functional diversity and network structure. Results: Precipitation, insularity and plant richness, together with hummingbird functional diversity (specifically, functional dispersion), were consistently strong predictors of niche partitioning in plant–hummingbird networks. Moreover, SEMs showed that environmental predictors and plant richness affected network structure both directly and indirectly through their effects on hummingbird functional diversity. Plant functional diversity, however, was unrelated to hummingbird functional diversity and network structure. Main conclusions:: We reveal the importance of hummingbird functional diversity for niche partitioning in plant–hummingbird interaction networks. The lack of support for similar effects for plant functional diversity potentially indicates that consumer functional diversity might be more important for structuring interaction networks than resource functional diversity. Changes in pollinator functional diversity are therefore likely to alter the structure of interaction networks and associated ecosystem functions.

AB - Aim: Species interaction networks are known to vary in structure over large spatial scales. We investigated the hypothesis that environmental factors affect interaction network structure by influencing the functional diversity of ecological communities. Notably, we expect more functionally diverse communities to form interaction networks with a higher degree of niche partitioning. Location:: Americas. Time period:: Current. Major taxa studied:: Hummingbirds and their nectar plants. Methods: We used a large dataset comprising 74 quantitative plant–hummingbird interaction networks distributed across the Americas, along with morphological trait data for 158 hummingbird species. First, we used a model selection approach to evaluate associations between the environment (climate, topography and insularity), species richness and hummingbird functional diversity as predictors of network structure (niche partitioning, i.e., complementary specialization and modularity). Second, we used structural equation models (SEMs) to ask whether environmental predictors and species richness affect network structure directly and/or indirectly through their influence on hummingbird functional diversity. For a subset of 28 networks, we additionally evaluated whether plant functional diversity was associated with hummingbird functional diversity and network structure. Results: Precipitation, insularity and plant richness, together with hummingbird functional diversity (specifically, functional dispersion), were consistently strong predictors of niche partitioning in plant–hummingbird networks. Moreover, SEMs showed that environmental predictors and plant richness affected network structure both directly and indirectly through their effects on hummingbird functional diversity. Plant functional diversity, however, was unrelated to hummingbird functional diversity and network structure. Main conclusions:: We reveal the importance of hummingbird functional diversity for niche partitioning in plant–hummingbird interaction networks. The lack of support for similar effects for plant functional diversity potentially indicates that consumer functional diversity might be more important for structuring interaction networks than resource functional diversity. Changes in pollinator functional diversity are therefore likely to alter the structure of interaction networks and associated ecosystem functions.

U2 - 10.1111/geb.v27.10

DO - 10.1111/geb.v27.10

M3 - Journal article

SN - 1466-822X

VL - 27

SP - 1186

EP - 1199

JO - Global Ecology and Biogeography

JF - Global Ecology and Biogeography

IS - 10

ER -

Functional diversity mediates macroecological variation in plant-hummingbird interaction networks

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