@article{fdi:010070033,
  title = {{T}ectus ({T}rochus) niloticus search for suitable habitats can cause equivocal benefits of protection in village-based marine reserves},
  author = {{D}umas, {P}ascal and {H}am, {J}. and {K}aku, {R}. and {W}illiam, {A}. and {K}altavara, {J}. and {G}ereva, {S}. and {L}{\'e}opold, {M}arc},
  editor = {},
  language = {{ENG}},
  abstract = {{I}n the {P}acific, the protection of coral reef resources is often achieved through the implementation of village-based marine reserves ({VBMR}s). {W}hile substantial fisheries benefits are often reported, results of quantitative approaches are controversial for benthic macroinvertebrates, whose life history traits may cause low congruence with protective measures implemented at non-ecologically relevant scales. {T}his study investigated the structural and behavioral responses of the exploited topshell {T}ectus niloticus within a very small (0.2 km(2)) {VBMR} in {V}anuatu, south {P}acific. {T}he results of underwater surveys and a nine-month tagging experiment emphasized contrasted, scale-dependent responses. {A}t the reserve scale, our results failed to demonstrate any positive effect of protection after three years of closure. {I}n contrast, abundance, density and biomass increased more than ten-fold in the southern part of the reserve, along with significantly larger |(25%) individual sizes. {T}he dispersal of tagged specimens was also consistently lower after 2, 4 and 9 months in the latter zone. {A}nalyses of 17 substratum variables revealed a marked small-scale patchiness delineating contrasted benthic microhabitats, the distribution of which closely matched that of trochus. {W}e advocate that i) {VBMR}s have inherently unequal ecological potentials for protecting and managing highly habitat-dependent species such as trochus; ii) 'success' or 'failure' is to a certain extent pre-determined by the trajectory of species-specific microhabitats, which may outreach protection effects. {T}his has strong implications in the {P}acific where the location and size of reserves primarily depends upon marine tenure, and communities have little flexibility in setting reserve boundaries.},
  keywords = {{PACIFIQUE} {SUD} ; {VANUATU}},
  booktitle = {},
  journal = {{P}los {O}ne},
  volume = {12},
  numero = {5},
  pages = {e0176922 [16 p.]},
  ISSN = {1932-6203},
  year = {2017},
  DOI = {10.1371/journal.pone.0176922},
  URL = {https://www.documentation.ird.fr/hor/fdi:010070033},
}