Document Detail


Distribution and seasonal abundance of Cnephia pecuarum (Diptera: Simuliidae) in Arkansas.
MedLine Citation:
PMID:  15264619     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Studies were conducted during 1990-92 to determine the distribution and abundance of the southern buffalo gnat (Cnephia pecuarum) in Arkansas. Field collection of adults near streams throughout Arkansas demonstrated adult occurrence in 24 counties. Abundance studies were conducted by using tent traps baited with dry ice in 3 counties in southeastern Arkansas. In 1990, studies were conducted in Bayou Meto (Ashley County); Seven Devils Swamp (Drew County); and Crocketts Bluff, Bayou Meto, and Little LaGrue Bayou (Arkansas County). During 1991 and 1992, abundance studies were limited to Arkansas County. Results and previous field observations suggest 3 distinct populations in Arkansas (southwestern, southeastern, and central). Seasonal occurrence extended from December to April but varied by location and year. Abundance studies indicated variation in both seasonal occurrence and adult density by year and trap location. Although investigations during 1990-91 showed similar seasonal occurrence trends (peaking in early March), higher adult densities were noted during 1990. In contrast, peak adult density during 1992 occurred in late January. Greatest adult density during the course of these investigations was 7,160 gnats/24 h during 1990 at Crocketts Bluff (Arkansas County). Results suggest that additional studies are warranted to determine the impact of environmental and river factors on seasonal occurrence and abundance of this pest.
Authors:
Donald W Atwood; Max V Meisch
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Journal of the American Mosquito Control Association     Volume:  20     ISSN:  8756-971X     ISO Abbreviation:  J. Am. Mosq. Control Assoc.     Publication Date:  2004 Jun 
Date Detail:
Created Date:  2004-07-21     Completed Date:  2004-08-02     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8511299     Medline TA:  J Am Mosq Control Assoc     Country:  United States    
Other Details:
Languages:  eng     Pagination:  125-9     Citation Subset:  IM    
Affiliation:
Herbicide and Insecticide Branch of the Biological and Economic Analysis Division, United States Environmental Protection Agency, Office of Pesticide Programs, Washington, DC 20460, USA.
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MeSH Terms
Descriptor/Qualifier:
Animals
Arkansas
Demography
Population Density
Seasons
Simuliidae*

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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