Observatorio de I+D+i UPM

Memorias de investigación
Research Publications in journals:
The architecture of weighted mutualistic networks
Year:2012
Research Areas
  • Physics chemical and mathematical
Information
Abstract
Several ecosystem services directly depend on mutualistic interactions. In species rich communities, these interactions can be studied using network theory. Current knowledge of mutualistic networks is based mainly on binary links; however, little is known about the role played by the weights of the interactions between species. What new information can be extracted by analyzing weighted mutualistic networks? In performing an exhaustive analysis of the topological properties of 29 weighted mutualistic networks, our results show that the generalist species, defined as those with a larger number of interactions in a network, also have the strongest interactions. Though most interactions of generalists are with specialists, the strongest interactions occur between generalists. As a result and by defining binary and weighted clustering coefficients for bipartite networks, we demonstrate that generalists form strongly-interconnected groups of species. The existence of these strong clusters reinforces the idea that generalist species govern the coevolution of the whole community.
International
Si
JCR
Si
Title
Oikos
ISBN
0030-1299
Impact factor JCR
3,061
Impact info
Volume
121
10.1111/j.1600-0706.2011.19592.x
Journal number
7
From page
1154
To page
1162
Month
JULIO
Ranking
Participants
  • Autor: Luis J. Gilarranz (CSIC)
  • Autor: Juan Manuel Pastor Ruiz (UPM)
  • Autor: Javier Ricardo Galeano Prieto (UPM)
Research Group, Departaments and Institutes related
  • Creador: Grupo de Investigación: Grupo de Sistemas Complejos
S2i 2019 Observatorio de investigación @ UPM con la colaboración del Consejo Social UPM
Cofinanciación del MINECO en el marco del Programa INNCIDE 2011 (OTR-2011-0236)
Cofinanciación del MINECO en el marco del Programa INNPACTO (IPT-020000-2010-22)