RT Journal Article
T1 Coexistence of nestedness and modularity in host–pathogen infection networks.
A1 Valverde, Sergi
A1 Vidiella, Blai
A1 Montañez, Raúl
A1 Fraile, Aurora
A1 Sacristán, Soledad
A1 García-Arenal, Fernando
K1 Relaciones huesped bacteria
K1 Parásitos de las plantas - Evolución
AB The long-term coevolution of hosts and pathogens in their environment forms a complex web of multi-scale interactions. Understanding how environmental heterogeneity affects the structure of host–pathogen networks is a prerequisite for predicting disease dynamics and emergence. Although nestedness is common in ecological networks, and theory suggests that nested ecosystems are less prone to dynamic instability, why nestedness varies in time and space is not fully understood. Many studies have been limited by a focus on single habitats and the absence of a link between spatial variation and structural heterogeneity such as nestedness and modularity. Here we propose a neutral model for the evolution of host–pathogen networks in multiple habitats. In contrast to previous studies, our study proposes that local modularity can coexist with global nestedness, and shows that real ecosystems are found in a continuum between nested-modular and nested networks driven by intraspecific competition. Nestedness depends on neutral mechanisms of community assembly, whereas modularity is contingent on local adaptation and competition. The structural pattern may change spatially and temporally but remains stable over evolutionary timescales. We validate our theoretical predictions with a longitudinal study of plant–virus interactions in a heterogeneous agricultural landscape.
PB Springer Nature
YR 2020
FD 2020
LK https://hdl.handle.net/10630/32316
UL https://hdl.handle.net/10630/32316
LA eng
NO Política de acceso abierto tomada de: https://v2.sherpa.ac.uk/id/publication/32646?template=romeo
NO This work was supported by the Spanish Ministry of Economy and Competitiveness, grant FIS2016-77447-R MINEICO/AEI/FEDER and the European Union (to S.V.), and by grant RTI2018-094302-B-I00, Plan Estatal de I+D+i, Spanish Ministry of Economy and Competitiveness (to F.G.-A.). R.M. were funded by the PR01018-EC-H2020-FET-Open MADONNA project.
DS RIUMA. Repositorio Institucional de la Universidad de Málaga
RD 24 ene 2026