@article{fdi:010049601, title = {{C}ryptic vector divergence masks vector-specific patterns of infection : an example from the marine cycle of {L}yme borreliosis}, author = {{G}omez {D}iaz, {E}lena and {D}oherty, {P}.{F}. and {D}uneau, {D}. and {M}c{C}oy, {K}aren}, editor = {}, language = {{ENG}}, abstract = {{V}ector organisms are implicated in the transmission of close to a third of all infectious diseases. {I}n many cases, multiple vectors (species or populations) can participate in transmission but may contribute differently to disease ecology and evolution. {T}he presence of cryptic vector populations can be particularly problematic as differences in infection can be difficult to evaluate and may lead to erroneous evolutionary and epidemiological inferences. {H}ere, we combine site-occupancy modeling and molecular assays to evaluate patterns of infection in the marine cycle of {L}yme borreliosis, involving colonial seabirds, the tick {I}xodes uriae, and bacteria of the {B}orrelia burgdorferi s.l. complex. {I}n this cycle, the tick vector consists of multiple, cryptic (phenotypically undistinguishable but genetically distinct) host races that are frequently found in sympatry. {O}ur results show that bacterial detection varies strongly among tick races leading to vector-specific biases if raw counts are used to calculate {B}orrelia prevalence. {T}hese differences are largely explained by differences in infection intensity among tick races. {A}fter accounting for detection probabilities, we found that overall prevalence in this system is higher than previously suspected and that certain vector-host combinations likely contribute more than others to the local dynamics and large-scale dispersal of {B}orrelia spirochetes. {T}hese results highlight the importance of evaluating vector population structure and accounting for detection probability when trying to understand the evolutionary ecology of vector-borne diseases.}, keywords = {{L}yme disease bacteria ; pathogen detection ; seabirds ; site-occupancy ; models ; transmission ecology}, booktitle = {}, journal = {{E}volutionary {A}pplications}, volume = {3}, numero = {4}, pages = {391--401}, ISSN = {1752-4571}, year = {2010}, DOI = {10.1111/j.1752-4571.2010.00127.x}, URL = {https://www.documentation.ird.fr/hor/fdi:010049601}, }