Species functional traits and abundance as drivers of multiplex ecological networks: first empirical quantification of inter-layer edge weights
Many vertebrate species act as both plant pollinators and seed-dispersers, thus interconnecting these processes, particularly on islands. Ecological multilayer networks are a powerful tool to explore interdependencies between processes; however, quantifying the links between species engaging in different types of interactions (i.e. inter-layer edges) remains a great challenge. Here, we empirically measured inter-layer edge weights by quantifying the role of individually marked birds as both pollinators and seed-dispersers of Galápagos plant species over an entire year. Although most species (80%) engaged in both functions, we show that only a small proportion of individuals actually linked the two processes, highlighting the need to further consider intra-specific variability in individuals' functional roles. Furthermore, we found a high variation among species in linking both processes, i.e. some species contribute more than others to the modular organization of the multilayer network. Small and abundant species are particularly important for the cohesion of pollinator seed-dispersal networks, demonstrating the interplay between species traits and neutral processes structuring natural communities.
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Format: | artículo biblioteca |
Language: | English |
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Royal Society (Great Britain)
2020-11-25
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Subjects: | Species abundance, Body size, Multilayer networks, Galápagos, Pollination, Seed-dispersal, |
Online Access: | http://hdl.handle.net/10261/223631 http://dx.doi.org/10.13039/501100003329 |
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dig-ipna-es-10261-2236312021-12-27T16:37:31Z Species functional traits and abundance as drivers of multiplex ecological networks: first empirical quantification of inter-layer edge weights Hervías-Parejo, Sandra Tur, Cristina Heleno, Rubén H. Nogales, Manuel Timóteo, Sérgio Traveset, Anna Ministerio de Economía y Competitividad (España) Foundation for Science and Technology Species abundance Body size Multilayer networks Galápagos Pollination Seed-dispersal Many vertebrate species act as both plant pollinators and seed-dispersers, thus interconnecting these processes, particularly on islands. Ecological multilayer networks are a powerful tool to explore interdependencies between processes; however, quantifying the links between species engaging in different types of interactions (i.e. inter-layer edges) remains a great challenge. Here, we empirically measured inter-layer edge weights by quantifying the role of individually marked birds as both pollinators and seed-dispersers of Galápagos plant species over an entire year. Although most species (80%) engaged in both functions, we show that only a small proportion of individuals actually linked the two processes, highlighting the need to further consider intra-specific variability in individuals' functional roles. Furthermore, we found a high variation among species in linking both processes, i.e. some species contribute more than others to the modular organization of the multilayer network. Small and abundant species are particularly important for the cohesion of pollinator seed-dispersal networks, demonstrating the interplay between species traits and neutral processes structuring natural communities. This research was undertaken within projects CGL2015-67865-P and CGL2017-88122-P funded by the Ministerio de Economía y Competitividad, Spain. R.H. and S.T. were financed by the Portuguese Foundation for Science and Technology (FCT) contracts: UID/BIA/04004/2019 and CEECIND/00135/2017, respectively. The manuscript was edited by Guido Jones, currently funded by the Cabildo de Tenerife, under the TFinnova Programme supported by MEDI and FDCAN funds Peer reviewed 2020-11-25T11:24:08Z 2020-11-25T11:24:08Z 2020-11-25 artículo http://purl.org/coar/resource_type/c_6501 Proceedings of the Royal Society B: Biological Sciences 287(1939): 20202127(2020) 0962-8452 http://hdl.handle.net/10261/223631 10.1098/rspb.2020.2127 1471-2954 http://dx.doi.org/10.13039/501100003329 33234084 en #PLACEHOLDER_PARENT_METADATA_VALUE# #PLACEHOLDER_PARENT_METADATA_VALUE# MINECO/CGL2015/67865-P MINECO/CGL2017/88122-P Postprint https://doi.org/10.1098/rspb.2020.2127 Sí open Royal Society (Great Britain) |
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Species abundance Body size Multilayer networks Galápagos Pollination Seed-dispersal Species abundance Body size Multilayer networks Galápagos Pollination Seed-dispersal |
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Species abundance Body size Multilayer networks Galápagos Pollination Seed-dispersal Species abundance Body size Multilayer networks Galápagos Pollination Seed-dispersal Hervías-Parejo, Sandra Tur, Cristina Heleno, Rubén H. Nogales, Manuel Timóteo, Sérgio Traveset, Anna Species functional traits and abundance as drivers of multiplex ecological networks: first empirical quantification of inter-layer edge weights |
description |
Many vertebrate species act as both plant pollinators and seed-dispersers, thus interconnecting these processes, particularly on islands. Ecological multilayer networks are a powerful tool to explore interdependencies between processes; however, quantifying the links between species engaging in different types of interactions (i.e. inter-layer edges) remains a great challenge. Here, we empirically measured inter-layer edge weights by quantifying the role of individually marked birds as both pollinators and seed-dispersers of Galápagos plant species over an entire year. Although most species (80%) engaged in both functions, we show that only a small proportion of individuals actually linked the two processes, highlighting the need to further consider intra-specific variability in individuals' functional roles. Furthermore, we found a high variation among species in linking both processes, i.e. some species contribute more than others to the modular organization of the multilayer network. Small and abundant species are particularly important for the cohesion of pollinator seed-dispersal networks, demonstrating the interplay between species traits and neutral processes structuring natural communities. |
author2 |
Ministerio de Economía y Competitividad (España) |
author_facet |
Ministerio de Economía y Competitividad (España) Hervías-Parejo, Sandra Tur, Cristina Heleno, Rubén H. Nogales, Manuel Timóteo, Sérgio Traveset, Anna |
format |
artículo |
topic_facet |
Species abundance Body size Multilayer networks Galápagos Pollination Seed-dispersal |
author |
Hervías-Parejo, Sandra Tur, Cristina Heleno, Rubén H. Nogales, Manuel Timóteo, Sérgio Traveset, Anna |
author_sort |
Hervías-Parejo, Sandra |
title |
Species functional traits and abundance as drivers of multiplex ecological networks: first empirical quantification of inter-layer edge weights |
title_short |
Species functional traits and abundance as drivers of multiplex ecological networks: first empirical quantification of inter-layer edge weights |
title_full |
Species functional traits and abundance as drivers of multiplex ecological networks: first empirical quantification of inter-layer edge weights |
title_fullStr |
Species functional traits and abundance as drivers of multiplex ecological networks: first empirical quantification of inter-layer edge weights |
title_full_unstemmed |
Species functional traits and abundance as drivers of multiplex ecological networks: first empirical quantification of inter-layer edge weights |
title_sort |
species functional traits and abundance as drivers of multiplex ecological networks: first empirical quantification of inter-layer edge weights |
publisher |
Royal Society (Great Britain) |
publishDate |
2020-11-25 |
url |
http://hdl.handle.net/10261/223631 http://dx.doi.org/10.13039/501100003329 |
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