Constructing more informative plant-pollinator networks: visitation and pollen deposition networks in a heathland plant community

Proceedings. Biological Sciences
G BallantyneP G Willmer

Abstract

Interaction networks are widely used as tools to understand plant-pollinator communities, and to examine potential threats to plant diversity and food security if the ecosystem service provided by pollinating animals declines. However, most networks to date are based on recording visits to flowers, rather than recording clearly defined effective pollination events. Here we provide the first networks that explicitly incorporate measures of pollinator effectiveness (PE) from pollen deposition on stigmas per visit, and pollinator importance (PI) as the product of PE and visit frequency. These more informative networks, here produced for a low diversity heathland habitat, reveal that plant-pollinator interactions are more specialized than shown in most previous studies. At the studied site, the specialization index [Formula: see text] was lower for the visitation network than the PE network, which was in turn lower than [Formula: see text] for the PI network. Our study shows that collecting PE data is feasible for community-level studies in low diversity communities and that including information about PE can change the structure of interaction networks. This could have important consequences for our understanding of threats to pol...Continue Reading

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Citations

Sep 15, 2015·Global Change Biology·Eva Knop
Jun 19, 2016·Journal of Comparative Physiology. A, Neuroethology, Sensory, Neural, and Behavioral Physiology·Adrian G DyerBob B M Wong
Dec 6, 2017·Scientific Reports·André PornonNathalie Escaravage
Jul 4, 2018·Ecology Letters·T M KnightJ A Steets
Jan 13, 2018·Proceedings. Biological Sciences·Keng-Lou James HungJoshua R Kohn
Feb 15, 2019·The New Phytologist·Javier ValverdeJosé María Gómez
Nov 24, 2019·Scientific Reports·Alistair John CampbellTereza Cristina Giannini
Feb 20, 2020·Physical Review. E·Yu MengYing-Cheng Lai
Jun 20, 2020·Emerging Topics in Life Sciences·Daniel P CariveauGabriella L Pardee
Aug 18, 2020·The New Phytologist·Susanne DunkerTiffany M Knight
Mar 4, 2021·Plant Biology·S NaghilooZ Esmaillou
Aug 31, 2021·American Journal of Botany·Gerard X SmithRachel B Spigler
Oct 9, 2021·American Journal of Botany·Maureen L PageNeal M Williams

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Methods Mentioned

BETA
light microscopy

Software Mentioned

WNODF

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