VectorSurv

Invasive Map

Overview

The VectorSurv invasive map shows the spread of invasive mosquito species over time, based on collection data submitted to VectorSurv. The map is refreshed once daily at midnight Pacific Time and may not display real-time data.

Map on the left and chart plus summary on the right. The map is centered on California and shows red, gray, and light gray regions. The chart is a stacked bar chart with a line overlay.

Map

Collection events are aggregated spatially into regions on the map, each of which represents the intersection of a census county subdivision and the boundary VectorSurv has on record for the member agency covering that area. The color in each region corresponds to the known presence or absence of the species:

Red indicates that the selected species was detected within the selected timeframe. Species complexes are not counted as detections. (For instance, Cx pipiens + quinquefasciatus collections do not count as Cx quinquefasciatus collections.) Map showing regions in red where the selected species was detected.

Gray indicates that at least one collection using an eligible trap occurred within the selected timeframe, but no mosquitoes of the selected species were found. Map showing regions in gray where collections occurred but the selected species was not found.

Light gray indicates that no collections using an eligible trap occurred within the selected timeframe. Map showing regions in light gray where no applicable collections occurred.

Eligible Traps for Surveillance

Invasive detections can come from a collection using any trap type, but the map considers the following eligible traps when determining whether surveillance was performed in a region:

  • American Biophysics Corporation (ABC) trap
  • BG Sentinel
  • Carbon dioxide baited trap
  • CDC Autocidal Gravid Ovitrap (counts)
  • CDC Autocidal Gravid Ovitrap (presence/absence)
  • CDC miniature light trap
  • CDC-style Gravid Trap
  • Collection Bottle Rotator Trap
  • EVS (Encephalitis Vector Survey) trap
  • Frommer Updraft Gravid Trap
  • Gravid trap
  • Modified CDC Autocidal Gravid Ovitrap (counts)
  • New Jersey light trap
  • Oviposition Trap (counts)
  • Oviposition Trap (presence/absence)
  • Reiter-Cummings Gravid Trap

Chart

Clicking any region replaces the tutorial card with a chart. Chart items can be shown or hidden by clicking the legend below the chart.

A bar chart with time on the x-axis and collections on the y-axis. The bars are a combination of gray and red, with a line chart overlaid.

Bar Chart

The chart uses a stacked bar format to show collection events over time, with time on the horizontal axis and the number of collection events on the vertical axis.

Each bar comprises up to two colored segments:

  • Red — collections containing the selected species
  • Gray — collections not containing the selected species

Mousing over any bar brings up a tooltip with detailed counts.

Based on the selected timeframe, charted collection events are aggregated:

  • By week when the selected timeframe is 2 years or less
  • By month when the timeframe is between 2 and 5 years
  • By quarter when the timeframe exceeds 5 years

Projected Growth Line

The overlaid projected growth line, which is available only for certain species, is a function of temperature. VectorSurv uses NLDAS temperature data.

Summary Table

Clicking any region displays a summary table section below the chart.

Summary with regional details above a table showing counts and dates of invasive species detections in the selected region.

The summary includes:

Regional Information

  • County
  • County subdivision
  • Member agency covering the area
  • Member agency website

Species Information

  • Total detections in the selected timeframe
  • Total detections all time
  • Date first found
  • Date last found

Species shown include:

  • Aedes aegypti
  • Aedes albopictus
  • Aedes notoscriptus
  • The species currently selected

The first three species are always included. They are considered the invasive species of greatest concern across the United States due to their status as Dengue/Chikungunya/Zika virus vectors.

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