@article{fdi:010054166, title = {{E}fficiency of a new reverse-bait trigger snap trap for invasive rats and a new standardised abundance index}, author = {{T}heuerkauf, {J}. and {R}ouys, {S}. and {J}ourdan, {H}erv{\'e} and {G}ula, {R}.}, editor = {}, language = {{ENG}}, abstract = {{W}e compared trapping and kill efficiency, and by-catch rate of a new reverse-bait trigger rat trap ({K}a {M}ate) with conventional snap traps ({E}zeset and {V}ictor), and assessed methods for calculating abundance indices, over 2879 trap nights on {W}allis & {F}utuna and {N}ew {C}aledonia. {K}a {M}ate traps were most effective at killing larger (> 100 g) rats whereas {E}zeset traps had the best capture rates of smaller (< 100 g) rodents. {V}ictor mouse traps caught rodents up to 50 g, but were no more efficient than rat traps. {P}roportions of live captures were similar for {K}a {M}ate and {E}zeset traps, but the mass threshold for live rats in {E}zeset traps was much lower than that of the {K}a {M}ate traps. {K}a {M}ate traps had much lower non-target by-catch rates than {E}zeset traps in habitats free of land crabs. {W}e developed a new rodent abundance index to standardise results of different trap systems.}, keywords = {}, booktitle = {}, journal = {{A}nnales {Z}oologici {F}ennici}, volume = {48}, numero = {5}, pages = {308--318}, ISSN = {0003-455{X}}, year = {2011}, URL = {https://www.documentation.ird.fr/hor/fdi:010054166}, }