The structure and ecological function of the interactions between plants and arbuscular mycorrhizal fungi through multilayer networks
Metadatos
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Wiley
Materia
Arbuscular mycorrhizal fungi Ecological function Interaction networks Multilayer networks Mutualistic interactions Plant community Plant recruitment
Date
2023-05Referencia bibliográfica
J. L., Alcántara, J. M., López-García, Á., Ozuna, C. V., Perea, A. J., Prieto, J., Rincón, A., & Azcón-Aguilar, C. (2023). The structure and ecological function of the interactions between plants and arbuscular mycorrhizal fungi through multilayer networks. Functional Ecology, 00, 1–14. https://doi.org/10.1111/1365-2435.14378
Patrocinador
Ministerio de Ciencia e Innovación, Grant/ Award Number: CGL2015-69118- C2- 2- P and PGC2018-100966- B- I00Résumé
Arbuscular mycorrhizas are one of the most frequent mutualisms in terrestrial
ecosystems. Although studies on plant mutualistic interaction networks suggest
that they may leave their imprint on plant community structure and dynamics,
this has not been explicitly assessed. Thus, in the context of plant-fungi
interactions,
studies explicitly linking plant-mycorrhizal
fungi interaction networks with
key ecological functions of plant communities, such as recruitment, are lacking.
2. In this study, we analyse, in two Mediterranean forest communities of southern
Iberian Peninsula, how plant-arbuscular
mycorrhizal fungi (AMF) networks
modulate plant-plant
recruitment interaction networks. We use a new approach
integrating plant-AMF
and plant recruitment networks into a single multilayer
structure. We also develop a new metric (Interlayer Node Neighbourhood
Integration, INNI) to explore the impact of a given node on the structure across
layers.
3. The similarity of plant species in their AMF communities is positively related to
the observed frequency of recruitment interactions in the field. Results reveal
that properties of plant-AMF
networks, such as plant degree and centrality, can
explain about the properties of plant recruitment network, such as in-and
out-degree
(i.e. sapling bank and canopy service) and its modular structure. However,
these relationships differed between the two forest communities. Finally, we
identify particular AMF that contribute to integrate the neighbourhood of recruitment
interactions between plants.
4. This multilayer network approach is useful to explore the role of plant-AMF
interactions
on recruitment, a key ecosystem function enhanced by fungi. Results
provide evidence that the complex structure of plant-AMF
interactions impacts
functional and structurally plant-plant
interactions, which in turn may potentially