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EDW/EDW_PeriodicalCicadaBroods_01 (MapServer)

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Service Description: Broods are organized by 17-year and 13-year cicadas. Periodical cicada brood data is symoblized by brood number (I-XXIII) using a solid qualitative fill color for counties where the brood is found. Each brood layer includes the next emergence year for that brood. Broods with the soonest next emergence year are turned on by default while all other broods are turned off by default. Counties with multiple cicada broods are symbolized with a black hash fill symbol.

Map Name: U.S. Forest Service Periodical Cicada Broods

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Layers: Tables: Description: A map service on the www depicting periodical cicada distribution and expected year of emergence by cicada brood and county. The periodical cicada emerges in massive groups once every 13 or 17 years and is completely unique to North America. There are 15 of these mass groups, called broods, of periodical cicadas in the United States. This county-based data, complied by the USFS Northern Research Station, depict where and when the different broods of periodical cicadas are likely to emerge in the US through 2031. The data was compiled for the 2011 publication entitled "Avian predators are less abundant during periodical cicada emergences, but why?" (Koenig et al. http://dx.doi.org/10.1890/10-1583.1) using data from periodical cicada publications listed below. 1) Marlatt, C. L. 1907. "The periodical cicada". Bulletin of the USDA Bureau of Entomology 71:1–181. 2) Simon, C. 1988. "Evolution of 13- and 17-year periodical cicadas". (Homoptera: Cicadidae). Bulletin of the Entomological Society of America 34:163–176. 3) Liebhold, A. M., Bohne, M. J., and R. L. Lilja. 2013. "Active Periodical Cicada Broods of the United States". USDA Forest Service Northern Research Station, Northeastern Area State and Private Forestry.

Copyright Text: The Forest Service uses the most current and complete data available. GIS data and product accuracy may vary. They may be: developed from sources of differing accuracy, accurate only at certain scales, based on modeling or interpretation, incomplete while being created or revised, etc. Using GIS products for purposes other than those for which they were created, may yield inaccurate or misleading results. The Forest Service reserves the right to correct, update, modify, or replace, GIS products without notification.

Spatial Reference: 4269  (4269)


Single Fused Map Cache: false

Initial Extent: Full Extent: Units: esriDecimalDegrees

Supported Image Format Types: PNG32,PNG24,PNG,JPG,DIB,TIFF,EMF,PS,PDF,GIF,SVG,SVGZ,BMP

Document Info: Supports Dynamic Layers: false

MaxRecordCount: 1000

MaxImageHeight: 2048

MaxImageWidth: 2048

Supported Query Formats: JSON, AMF

Min Scale: 0

Max Scale: 0



Child Resources:   Info

Supported Operations:   Export Map   Identify   Find   Return Updates   Generate KML