@article{fdi:010075230, title = {{F}ield evaluation of seasonal trends in relative population sizes and dispersal pattern of {A}edes albopictus males in support of the design of a sterile male release strategy}, author = {{L}e {G}off, {G}ilbert and {D}amiens, {D}avid and {R}uttee, {A}. {H}. and {P}ayet, {L}. and {L}ebon, {C}. and {D}ehecq, {J}. {S}. and {G}ouagna, {L}ouis-{C}l{\'e}ment}, editor = {}, language = {{ENG}}, abstract = {{B}ackground{T}o develop an efficient sterile insect technique ({SIT}) programme, the number of sterile males to release, along with the spatial and temporal pattern of their release, has to be determined. {S}uch parameters could be estimated from a reliable estimation of the wild population density (and its temporal variation) in the area to treat. {H}ere, a series of mark-release-recapture experiments using laboratory-reared and field-derived {A}edes albopictus males were carried out in {D}uparc, a selected pilot site for the future application of {SIT} in the north of {L}a {R}eunion {I}sland.{M}ethods{T}he dispersal, longevity of marked males and seasonal fluctuations in the population size of native mosquitoes were determined from the ratio of marked to unmarked males caught in mice-baited {BG}-{S}entinel traps. {T}he study was conducted during periods of declining population abundance ({A}pril), lowest abundance ({S}eptember) and highest abundance ({D}ecember).{R}esults{A}ccording to data collected in the first 4 days post-release, the {L}incoln index estimated population size as quite variable, ranging from 5817 in {A}pril, to 639 in {S}eptember and 5915 in {D}ecember. {C}alculations of daily survival probability to 4 days after release for field and laboratory males were 0.91 and 0.98 in {A}pril, respectively, and 0.88 and 0.84 in {S}eptember, respectively. {T}he mean distance travelled ({MDT}) of released field males were 46 m, 67 m and 37 m for {D}ecember, {A}pril and {S}eptember experiments, respectively. {F}or released laboratory males, the {MDT} was 65 m and 42 m in {A}pril and {S}eptember, respectively.{C}onclusions{T}heoretically, the most efficient release programme should be started in {J}uly/{A}ugust when the mosquito population size is the lowest (c.600 wild males/ha relative to 5000 wild males estimated for {D}ecember and {A}pril), with a weekly release of 6000 males/ha. {T}he limited dispersal of {A}e. albopictus males highlights the nessecity for the widespread release of sterile males over multiple sites and in a field setting to avoid topographical barriers and anthropogenic features that may block the migration of the released sterile male mosquitoes.}, keywords = {{M}ark-release-recapture ; {M}ale mosquito ; {S}terile insect technique ({SIT})}, booktitle = {}, journal = {{P}arasites and {V}ectors}, volume = {12}, numero = {}, pages = {art. 81 [10 p.]}, ISSN = {1756-3305}, year = {2019}, DOI = {10.1186/s13071-019-3329-7}, URL = {https://www.documentation.ird.fr/hor/fdi:010075230}, }