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Latest Impact Factors from Elsevier's Entomology Journals

We are pleased to bring you the latest Impact Factors from Elsevier's Entomology journals. Highlights include...

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Insect Biochemistry And Molecular Biology

2008 Impact Factor
WAS
2.626

2009 Impact Factor
NOW
3.117

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Journal Of Insect Physiology

2008 Impact Factor
WAS
2.155

2009 Impact Factor
NOW
2.235

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Pesticide Biochemistry And Physiology

2008 Impact Factor
WAS
1.276

2009 Impact Factor
NOW
1.719

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Listed by highest Impact Factor
Journal Title2009 Impact Factor
Journal Of Invertebrate Pathology1.807
Biological Control1.612
Arthropod Structure & Development1.108

Calculating Impact Factors

WHAT IS AN IMPACT FACTOR?
The journal impact factor is a measure of the frequency with which the average article in a journal has been cited in a particular year. The impact factor helps you evaluate a journal's relative importance, especially when you compare it to others in the same field. The impact factor is calculated by dividing the number of citations in the current year to items published in the two previous years by the total number of items published in the two previous years.

Using Journal X as an example:
Cites in 2010 to items published in:2009
2008
Sum
= 258
= 199
= 457
Number of items published in:2009
2008
Sum
= 116
= 71
= 187
Calculation:Cites to recent items457= 2.444
Number of recent items187

The 2010 Impact Factor for Journal X is 2.444

Journal Performance Measurements

Journal performance measurements offer a systematic, objective means to critically evaluate journals, and several indicators are available. For more information on IFs and other journal performance measurements visit:

http://www.elsevier.com/wps/find/editorshome.editors/biblio