@article{fdi:010072073, title = {{T}he invasive {R}ed-vented bulbul ({P}ycnonotus cafer) outcompetes native birds in a tropical biodiversity hotspot}, author = {{T}hibault, {M}. and {V}idal, {E}ric and {P}otter, {M}. {A}. and {S}anchez, {T}. and {B}rescia, {F}.}, editor = {}, language = {{ENG}}, abstract = {{I}nvasive alien species are a major cause of biodiversity loss globally, but especially on islands where high species richness and levels of endemism accentuate their impacts. {T}he {R}ed vented bulbul ({P}ycnonotus cafer), a tropical passerine bird that has been introduced widely across locations of high conservation value, is considered an extreme pest. {I}t is currently expanding its range in {N}ew {C}aledonia, one of the world's biodiversity hotspots. {D}ecisive recommendations on management strategies are required urgently to inform local managers and policy makers, but they should be based on quantitative local evidence, not just on expert opinion. {T}he {R}ed-vented bulbul is widely blamed for its impacts on biodiversity, especially through competition. {W}e used data from 2,472 point counts to explore the abundance relationships between the {R}ed-vented bulbul and 14 other species of bird. {O}ur results revealed a negative relationship between the occurrence of the bulbul and the mean abundance of nine species, all native (or endemic, n = 3) to the {N}ew {C}aledonia archipelago. {I}n contrast, the abundance of other introduced species such as {A}cridotheres tristis ({C}ommon myna), {P}asser domesticus ({H}ouse sparrow) and {S}pilopelia chinensis ({S}potted dove) were not affected by the {R}ed-vented bulbul. {M}oreover, temporal trends in the abundance of impacted species suggest that the {R}ed-vented bulbul may cause niche contractions rather than mortality for native species in man-modified habitats. {M}onitoring and control of the {R}ed-vented bulbul is recommended to prevent on-going impacts on native bird communities throughout {N}ew {C}aledonia, and its impact on native bird communities elsewhere should be quantified.}, keywords = {{NOUVELLE} {CALEDONIE}}, booktitle = {}, journal = {{PL}o{S} {O}ne}, volume = {13}, numero = {2}, pages = {e0192249 [18 p.]}, ISSN = {1932-6203}, year = {2018}, DOI = {10.1371/journal.pone.0192249}, URL = {https://www.documentation.ird.fr/hor/fdi:010072073}, }