@article{fdi:010061864, title = {{B}ehavioural divergence of sympatric {A}nopheles funestus populations in {B}urkina {F}aso}, author = {{G}uelbeogo, {W}. {M}. and {S}agnon, {N}. and {L}iu, {F}. and {B}esansky, {N}. {J}. and {C}ostantini, {C}arlo}, editor = {}, language = {{ENG}}, abstract = {{B}ackground: {I}n {B}urkina {F}aso, two chromosomal forms of the malaria vector {A}nopheles funestus, {F}olonzo and {K}iribina, are distinguished by contrasting frequencies of shared polymorphic chromosomal inversions. {S}ympatric and synchronous populations of {F}olonzo and {K}iribina mate assortatively, as indicated by a significant deficit of heterokaryotypes, and genetic associations among inversions on independently segregating chromosome arms. {T}he present study aimed to assess, by intensive longitudinal sampling, whether sympatric {F}olonzo and {K}iribina populations are characterized by behavioural differences in key malaria vectorial parameters. {M}ethods: {T}he study was conducted in two adjacent villages near {O}uagadougou, in the dry savanna of central {B}urkina {F}aso. {M}osquito adult resting behaviour of both forms was compared based on parallel indoor/outdoor collections across six breeding seasons; 8,235 fully karyotyped samples of half-gravid females were analysed in total. {A}dditionally, indoor/outdoor human biting behaviour, host selection, and {P}lasmodium falciparum sporozoite rate was assessed and compared between chromosomal forms. {R}esults: {T}he {K}iribina form was numerically predominant in the area. {H}owever, the {F}olonzo form was significantly over-represented in indoor resting collections and showed stronger post-prandial endophily, while {K}iribina predominated outdoors. {N}either form was statistically distinguishable in human biting behaviour, and both were more likely to seek (> 89% and > 8%, respectively). {C}onclusions: {B}oth {K}iribina and {F}olonzo chromosomal forms are formidable malaria vectors in {B}urkina {F}aso. {H}owever, the significantly greater tendency for the {K}iribina form to rest outdoors despite its pronounced anthropophily suggests that uniform exposure of the overall {A}n. funestus population to indoor-based vector control tools cannot be expected; {K}iribina is more likely to evade indoor interventions and escape unharmed outdoors, reducing the efficacy of malaria control. {A}ccordingly, more efficient methods to detect {K}iribina and {F}olonzo, and a more complete understanding of their distribution and behaviour in {A}frica are advocated.}, keywords = {{A}nopheles funestus ; {A}nthropophily ; {B}ehavioural divergence ; {C}hromosomal forms ; {E}xophily ; {F}olonzo ; {K}iribina ; {M}alaria vector ; {W}est {A}frica ; {BURKINA} {FASO}}, booktitle = {}, journal = {{M}alaria {J}ournal}, volume = {13}, numero = {}, pages = {art. 65 [8 ]}, ISSN = {1475-2875}, year = {2014}, DOI = {10.1186/1475-2875-13-65}, URL = {https://www.documentation.ird.fr/hor/fdi:010061864}, }