Despite many books on plant invasions, none has focused on the role of species interactions. This book is a comprehensive overview of how plant invasions are mediated by varied species interactions and how such invasions influence this important component of biodiversity which involves the interactions (the 'glue') among a community's species. Besides highlighting relevant findings, the book digs deeply into new methodologies to understand species interactions in plant invasions and how this can improve management of invaded communities. The book covers: - Main theories/hypotheses in plant invasion ecology that invoke species interactions - Plant invasions promoted by mutualistic interactions and release from enemies - Antagonistic interactions preventing or hindering plant invasions - Consequences of plant invasions on native species interactions and ecosystem functioning - The interaction network approach to understanding plant invasions - Importance of considering species interactions in managing plant invasions Future avenues of research are highlighted in a final chapter.

Table of contents

• • Part I: Background
• Chapter 1: Plant invasions: the role of biotic interactions – An overview
• Chapter 2: The role of biotic interactions in invasion ecology: theories and hypotheses
• • Part II: Positive and negative interactions in the soil
• Chapter 3: Soil biota and non-native plant invasions
• • Part III: Mutualistic interactions that promote plant invasions
• Chapter 4: Pollination interactions promoting plant invasions-
• Chapter 5: Seed dispersal interactions promoting plant invasions
• Chapter 6: Ungulates as dispersal vectors of non-native plants
• Chapter 7: The role of plant-plant facilitation in non-native plant invasions
• Chapter 8: How direct and indirect non-native interactions can promote plant invasions, lead to invasional meltdown, and inform management decisions
• • Part IV: Antagonistic interactions that hinder plant invasions
• Chapter 9: Biotic resistance to plant invasions
• Chapter 10: EICA 2.0: A general model of enemy release and defence in plant and animal invasions
• Chapter 11: The role of pathogens in plant invasions
• Chapter 12: Direct and indirect effects of herbivores influencing plant invasions
• • Part V: Consequences of plant invasions for biotic interactions among native species
• Chapter 13: Impacts of non-native plants on plant-pollinator interactions
• Chapter 14: The effect of non-native plant invasions on seed dispersal of native plants
• Chapter 15: Allelopathic disruptions of biotic interactions due to non-native plants
• Chapter 16: Competition between native and non-native plants
• Chapter 17: Indirect biotic interactions between non-native plants and native plants and animals
• • Part VI: Novel techniques and experimental approaches in the study of plant invasions
• Chapter 18: How a network approach has advanced the field of plant invasion ecology
• Chapter 19: Molecular ecology of plant-microbial interactions during invasions: progress and challenges
• • Part VII: Biotic interactions and the management of ecosystems invaded by non-native plants
• Chapter 20: How can progress in the understanding of antagonistic interactions be applied to improve biological control of plant invasions?
• Chapter 21: Restoration of pollination interactions in communities invaded by non-native plants
• Chapter 22: Restoration of seed dispersal interactions in communities invaded by non-native plants
• Chapter 23: Multiple feedbacks due to biotic interactions across trophic levels can lead to persistent novel conditions that hinder restoration