Toward a spatial perspective of plant-based indirect interaction webs: Scaling up trait-mediated indirect interactions

2015 ◽  
Vol 17 (6) ◽  
pp. 500-509 ◽  
Author(s):  
Takayuki Ohgushi ◽  
Peter A. Hambäck
Keyword(s):  
Scaling Up ◽  
Indirect Interactions ◽  
Indirect Interaction ◽  
Spatial Perspective ◽  
Interaction Webs

Indirect interaction webs: an introduction

2009 ◽  
pp. 3-16 ◽  
Author(s):  
Takayuki Ohgushi ◽  
Timothy P. Craig ◽  
Peter W. Price
Keyword(s):  
Indirect Interaction ◽  
Interaction Webs

scholarly journals Niche and neutral processes leave distinct structural imprints on indirect interactions in mutualistic networks

2020 ◽  
Author(s):  
Benno I. Simmons ◽  
Andrew P. Beckerman ◽  
Katrine Hansen ◽  
Pietro K. Maruyama ◽  
Constantinos Televantos ◽  
...  
Keyword(s):  
Detailed Analysis ◽  
Evolutionary Dynamics ◽  
Flowering Plants ◽  
Indirect Interactions ◽  
Indirect Interaction ◽  
Interaction Patterns ◽  
Bipartite Networks ◽  
Hummingbird Pollination ◽  
Generate Plant ◽  
Network Metrics

AbstractIndirect interactions are central to ecological and evolutionary dynamics in pollination communities, yet we have little understanding about the processes determining patterns of indirect interactions, such as those between pollinators through shared flowering plants. Instead, research has concentrated on the processes responsible for direct interactions and whole-network structures. This is partly due to a lack of appropriate tools for characterising indirect interaction structures, because traditional network metrics discard much of this information. The recent development of tools for counting motifs (subnetworks depicting interactions between a small number of species) in bipartite networks enable detailed analysis of indirect interaction patterns. Here we generate plant-hummingbird pollination networks based on three major assembly processes – neutral effects (species interacting in proportion to abundance), morphological matching and phenological overlap – and evaluate the motifs associated with each one. We find that different processes produce networks with significantly different patterns of indirect interactions. Neutral effects tend to produce densely-connected motifs, with short indirect interaction chains, and motifs where many specialists interact indirectly through a single generalist. Conversely, niche-based processes (morphology and phenology) produced motifs with a core of interacting generalists, supported by peripheral specialists. These results have important implications for understanding the processes determining indirect interaction structures.

Sign in / Sign up

Export Citation Format

Share Document