Dispersing hemipteran vectors have reduced arbovirus prevalence

Excel file for data collected from the field and analyzed in the laboratory. For key, see, ReadMe file

Percentage of house sparrow nests with ≥ 1 nestling positive for BCRV at a site in relation to house sparrow colony size (maximum number of simultaneously active nests).

<p>The percentage of positive nests increased with colony size (<i>n</i> = 14 colonies; <i>r_s</i> = 0.69, <i>p</i> = 0.006). Sample sizes (number of nests) for each colony are shown near the symbols; sample size includes re-nestings and second broods, yielding values higher than the colony size in some cases. The large circle represents three colonies with the same value.</p

LRS dataset

Data for lifetime fitness analysi

Percentage of house sparrow nests with ≥ 1 nestling positive for BCRV in relation to cliff swallow colony size (maximum number of active nests).

<p>The percentage of positive sparrow nests decreased as cliff swallow colony size increased (<i>n</i> = 14 colonies; <i>r_s</i> = −0.54, <i>p</i> = 0.006). Sample sizes (number of nests) for each colony are shown near the symbols.</p

Model-averaged parameter estimates (β), unconditional standard errors (SE), and 95% CI for predictors of BCRV infection by nest from logistic regression analysis (parameters defined in Table 1).

<p>CI for parameters shown in bold do not include zero.</p

Predicted probability of a house sparrow nest containing ≥ 1 BCRV-positive nestling with distance from the nearest nest containing a BCRV-positive nestling (NNHP) for sparrows nesting at cliff swallow colony sites.

<p>Dotted vertical line represents the break between within-colony distances and between-colony distances.</p

Annual measures data set

Data for all analyses except for that on lifetime fitness

Percentage of house sparrow nests with ≥ 1 nestling positive for BCRV in relation to the percentage of BCRV-positive swallow bug pools in a colony (<i>r_s</i> = 0.77, <i>p</i> = 0.009).

<p>Swallow bugs were collected at colonies containing both cliff swallows and house sparrows from the outsides of active cliff swallow nests. Sample sizes (number of nests) for each colony are shown near the symbols. The large circle represents two colonies with the same value.</p

Model selection results of logistic regression on BCRV infection of nestling house sparrows by nest (<i>n</i> = 183 nests).

<p>All models except the intercept-only (null) model included an age, date, and brood effect. Global model included all predictor variables and age*date interaction. Predictor variables are defined in <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0025521#pone-0025521-t001" target="_blank">Table 1</a>.</p

Factors potentially influencing the likelihood of ≥ 1 house sparrow nestling in a nest becoming infected with Buggy Creek virus in sparrows nesting in unused cliff swallow nests in western Nebraska.

<p>Factors potentially influencing the likelihood of ≥ 1 house sparrow nestling in a nest becoming infected with Buggy Creek virus in sparrows nesting in unused cliff swallow nests in western Nebraska.</p