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Temporal switching of species roles in a plant-pollinator network

View ORCID ProfileVincent Miele, View ORCID ProfileRodrigo Ramos-Jiliberto, Diego P. Vazquez
doi: https://doi.org/10.1101/543637
Vincent Miele
LBBE - CNRS;
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  • ORCID record for Vincent Miele
  • For correspondence: vincent.miele@univ-lyon1.fr
Rodrigo Ramos-Jiliberto
Universidad Mayor, Santiago, Chile;
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  • For correspondence: ramos.jiliberto@gmail.com
Diego P. Vazquez
CONICET / Freiburg Institute for Advanced Studies / National University of Cuyo, Mendoza
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  • For correspondence: dvazquez@mendoza-conicet.gob.ar
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Abstract

Mutualistic networks are highly dynamic, characterized by high temporal turnover of species and interactions. Yet, we have a limited understanding of how the internal structure of these networks and the roles species play in them vary through time. We used six years of observation data and a novel statistical method (dynamic stochastic block models) to assess how network structure and species roles change across time in a quantitative plant-pollinator network from a dryland ecosystem in Argentina. Our analyses revealed a core-periphery structure persistent through seasons and years. Yet, species roles as core or peripheral were highly dynamic: virtually all species that played a core role in some seasons were also peripheral in other seasons, while many other species remained always peripheral. Our results illuminate our understanding of the dynamics of ecological networks and have important implications for ecosystem management and conservation.

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  • One author's last name was misspelled. Now corrected.

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The copyright holder for this preprint is the author/funder, who has granted bioRxiv a license to display the preprint in perpetuity. It is made available under a CC-BY-NC-ND 4.0 International license.
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Posted February 12, 2019.
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Temporal switching of species roles in a plant-pollinator network
Vincent Miele, Rodrigo Ramos-Jiliberto, Diego P. Vazquez
bioRxiv 543637; doi: https://doi.org/10.1101/543637
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Temporal switching of species roles in a plant-pollinator network
Vincent Miele, Rodrigo Ramos-Jiliberto, Diego P. Vazquez
bioRxiv 543637; doi: https://doi.org/10.1101/543637

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