Plants grow in communities where they interact with other plants and with other living organisms such as pollinators. On the one hand, studies of plant-plant interactions rarely consider how plants interact with other trophic levels such as pollinators. On the other, studies of plant-animal interactions rarely deal with interactions within trophic levels such as plant-plant competition and facilitation. Thus, to what degree plant interactions affect biodiversity and ecological networks across trophic levels is poorly understood. We manipulated plant communities driven by foundation species facilitation and sampled plant-pollinator networks at fine spatial scale in a field experiment in Sierra Nevada, Spain. We found that plant-plant facilitation shaped pollinator diversity and structured pollination networks. Nonadditive effects of plant interactions on pollinator diversity and interaction diversity were synergistic in one foundation species networks while they were additive in another foundation species. Nonadditive effects of plant interactions were due to rewiring of pollination interactions. In addition, plant facilitation had negative effects on the structure of pollination networks likely due to increase in plant competition for pollination. Our results empirically demonstrate how different network types are coupled, revealing pervasive consequences of interaction chains in diverse communities.

Plant interactions shape pollination networks via nonadditive effects / G. Losapio, M.A. Fortuna, J. Bascompte, B. Schmid, R. Michalet, R. Neumeyer, L. Castro, P. Cerretti, C. Germann, J. Haenni, S. Klopfstein, J. Ortiz, A. Pont, P. Rousse, J. Schmid, D. Sommaggio, C. Schöb. - In: ECOLOGY. - ISSN 1939-9170. - 100:3(2019), pp. e02619.1-e02619.9. [10.1002/ecy.2619]

Plant interactions shape pollination networks via nonadditive effects

G. Losapio
Primo
;
2019

Abstract

Plants grow in communities where they interact with other plants and with other living organisms such as pollinators. On the one hand, studies of plant-plant interactions rarely consider how plants interact with other trophic levels such as pollinators. On the other, studies of plant-animal interactions rarely deal with interactions within trophic levels such as plant-plant competition and facilitation. Thus, to what degree plant interactions affect biodiversity and ecological networks across trophic levels is poorly understood. We manipulated plant communities driven by foundation species facilitation and sampled plant-pollinator networks at fine spatial scale in a field experiment in Sierra Nevada, Spain. We found that plant-plant facilitation shaped pollinator diversity and structured pollination networks. Nonadditive effects of plant interactions on pollinator diversity and interaction diversity were synergistic in one foundation species networks while they were additive in another foundation species. Nonadditive effects of plant interactions were due to rewiring of pollination interactions. In addition, plant facilitation had negative effects on the structure of pollination networks likely due to increase in plant competition for pollination. Our results empirically demonstrate how different network types are coupled, revealing pervasive consequences of interaction chains in diverse communities.
biodiversity; competition; ecological networks; ecosystem functioning; facilitation; foundation species; interaction chains; interaction diversity; nestedness; pollination
Settore BIO/03 - Botanica Ambientale e Applicata
Settore BIO/02 - Botanica Sistematica
Settore BIO/05 - Zoologia
Settore BIO/07 - Ecologia
Article (author)
File in questo prodotto:
File Dimensione Formato  
Losapio_et_al-2019-Ecology.pdf

accesso riservato

Tipologia: Publisher's version/PDF
Dimensione 943.67 kB
Formato Adobe PDF
943.67 kB Adobe PDF   Visualizza/Apri   Richiedi una copia
Pubblicazioni consigliate

Caricamento pubblicazioni consigliate

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/2434/899257
Citazioni
  • ???jsp.display-item.citation.pmc??? 2
  • Scopus 22
  • ???jsp.display-item.citation.isi??? 22
social impact