@incollection{fdi:010070476, title = {{I}mpacts of invasive species on food webs : a review of empirical data}, author = {{D}avid, {P}. and {T}hebault, {E}. and {A}nneville, {O} . and {D}uyck, {P}.{F}. and {C}hapuis, {E}lodie and {L}oeuille, {N}.}, editor = {}, language = {{ENG}}, abstract = {{W}e review empirical studies on how bioinvasions alter food webs and how a food-web perspective may change their prediction and management. {P}redation is found to underlie the most spectacular damage in invaded systems, sometimes cascading down to primary producers. {I}ndirect trophic effects (exploitative and apparent competition) also affect native species, but rarely provoke extinctions, while invaders often have positive bottom-up effects on higher trophic levels. {A}s a result of these trophic interactions, and of nontrophic ones such as mutualisms or ecosystem engineering, invasions can profoundly modify the structure of the entire food web. {W}hile few studies have been undertaken at this scale, those that have highlight how network properties such as species richness, phenotypic diversity, and functional diversity, limit the likelihood and impacts of invasions by saturating niche space. {V}ulnerable communities have unsaturated niche space mainly because of evolutionary history in isolation (islands), dispersal limitation, or anthropogenic disturbance. {E}volution also modulates the insertion of invaders into a food web. {E}xotics and natives are evolutionarily new to one another, and invasion tends to retain alien species that happen to have advantage over residents in trophic interactions. {R}esident species, therefore, often rapidly evolve traits to better tolerate or exploit invaders—a process that may eventually restore more balanced food webs and prevent extinctions. {W}e discuss how network-based principles might guide management policies to better live with invaders, rather than to undertake the daunting (and often illusory) task of eradicating them one by one.}, keywords = {}, booktitle = {{N}etworks of invasion : a synthesis of concepts}, numero = {56}, pages = {1--60}, address = {{L}ondres}, publisher = {{E}lsevier}, series = {{A}dvances in {B}otanical {R}esearch}, year = {2017}, DOI = {10.1016/bs.aecr.2016.10.001}, ISBN = {978-0-12-804331-8}, ISSN = {0065-2504}, URL = {https://www.documentation.ird.fr/hor/fdi:010070476}, }