@article{fdi:010061819,
  title = {{L}arval competition between {A}n. coluzzii and {A}n. gambiae in insectary and semi-field conditions in {B}urkina {F}aso},
  author = {{G}imonneau, {G}eoffrey and {B}rossette, {L}. and {M}amai, {W}. and {D}abire, {R}. {K}. and {S}imard, {F}r{\'e}d{\'e}ric},
  editor = {},
  language = {{ENG}},
  abstract = {{C}ompetition in mosquito larvae is common and different ecological context could change competitive advantage between species. {H}ere, larval competition between the widely sympatric {A}frican malaria mosquitoes, {A}nopheles coluzzii and {A}nopheles gambiae were investigated in controlled insectary conditions using individuals from laboratory colonies and under ambient conditions using wild mosquitoes in a semi-field enclosure in western {B}urkina {F}aso. {L}arvae of both species were reared in trays at the same larval density and under the same feeding regimen in either single-species or mixed-species populations at varying species ratios reflecting 0%, 25%, 50% and 75% of competitor species. {I}n the insectaries, where environmental variations are controlled, larvae of the {A}n. coluzzii colony developed faster and with lower mortality than larvae of the {A}n. gambiae colony (8.8 +/- 0.1 days and 21 +/- 3% mortality vs. 9.5 +/- 0.1 days and 32 3% mortality, respectively). {A}lthough there was no significant effect of competition on these phenotypic traits in any species, there was a significant trend for higher fitness of the {A}n. coluzzii colony when competing with {A}n. gambiae under laboratory conditions (i.e. lower development time and increased wing length at emergence, {C}uzik's tests, {P} < 0.05). {I}n semi-field experiments, competition affected the life history traits of both species in a different way. {L}arvae of {A}n. gambiae tended to reduce development time when in competition with {A}n. coluzzii ({C}uzick's test, {P} = 0.002) with no impact either on mortality or size at emergence. {O}n the other hand, {A}n. coluzzii showed a significant trend for reduced larval mortality with increasing competition pressure ({C}uzick's test, {P} = 0.037) and production of smaller females when grown together with {A}n. gambiae ({C}uzick's test, {P} = 0.002). {O}ur results hence revealed that competitive interactions between larvae of the two species are context dependent. {T}hey further call for caution when exploring ecological processes using inbred laboratory colonies in this system of utmost medical importance.},
  keywords = {{A}n. coluzzii ; {A}n. gambiae ; {L}arvae ; {I}nsectary ; {S}emi-field ; {A}symmetrical competition ; {BURKINA} {FASO}},
  booktitle = {},
  journal = {{A}cta {T}ropica},
  volume = {130},
  numero = {},
  pages = {155--161},
  ISSN = {0001-706{X}},
  year = {2014},
  DOI = {10.1016/j.actatropica.2013.11.007},
  URL = {https://www.documentation.ird.fr/hor/fdi:010061819},
}