2009 Plant & insect science journal impact factors released

Thomson Reuters has just published the 2009 Journal Citation Reports (JCR), available by online subscription to UW-Madison library users. These metrics, including the "impact factor," can be used to compare journal performance. JCR compares 9,100+ peer-reviewed journals from 2,200 publishers in 78 countries.

New features:

• 1,055+ journals with their first published impact factor
  
• Updated 5-year impact factors and Eigenfactor metrics
  
• "Rank in category" for each journal's subject area, along with a box plot of impact factor distribution for all journals in that category
• Journal "self-citations" and analysis of their effect on impact factor

Top Agronomy journals by impact factor:

1. Advances in Agronomy
2. Theoretical and Applied Genetics
3. Agricultural and Forest Meteorology
4. Plant and Soil
5. European Journal of Agronomy
6. Plant Pathology
7. Field Crops Research
8. Postharvest Biology and Technology
9. Journal of Agronomy and Crop Science
10. Molecular Breeding

Top Entomology journals by impact factor:

1. Annual Review of Entomology
2. Advances in Insect Physiology
3. Insect Biochemistry and Molecular Biology
4. Insect Conservation and Diversity
5. Insect Molecular Biology
6. Systematic Entomology
7. Journal of Insect Physiology
8. Pest Management Science
9. Medical and Veterinary Entomology
10. Journal of Medical Entomology

Top Horticulture journals by impact factor:

1. Theoretical and Applied Genetics
2. Postharvest Biology and Technology
3. Molecular Breeding
4. Tree Genetics and Genomes
5. European Journal of Plant Pathology (print only 1994-96, 2004-05)
6. Australian Journal of Grape and Wine Research
7. Euphytica
8. Scientia Horticulturae
9. American Journal of Enology and Viticulture (print only)
10. Journal of the Japanese Society for Horticultural Science

Top Plant Sciences journals by impact factor:

1. Annual Review of Plant Biology
2. Annual Review of Phytopathology
3. Current Opinion in Plant Biology 
4. Trends in Plant Science 
5. Plant Cell
6. Plant Journal
7. Plant Physiology
8. New Phytologist
9. Plant, Cell & Environment
10. Critical Reviews in Plant Sciences 

Top Soil Science journals by impact factor:

1. Soil Biology and Biochemistry 
2. Soil & Tillage Research 
3. Journal of Soils and Sediments (no subscription)
4. Plant and Soil 
5. Geoderma
6. Pedobiologia 
7. Soil Science Society of America Journal
8. European Journal of Soil Science 
9. Applied Soil Ecology
10. Soil Use and Management 

Top Multidisciplinary Agriculture journals by impact factor:

1. Agriculture, Ecosystems & Environment
2. Journal of Agricultural and Food Chemistry
3. Agricultural Systems
4. Annals of Applied Biology
5. Journal of Agricultural Science
6. Journal of the Science of Food and Agriculture
7. Computers and Electronics in Agriculture
8. Australian Journal of Agricultural Research (ends 2008)
9. Agriculture and Human Values
10. Precision Agriculture 

Statistics journals: High impact factors

Statistics journals - ranked by 2008 Impact Factor

1. Econometrica (UW-Madison subscriptions: online 1933-2007, print 1933-2009)
2. Biostatistics (online 2000-present)
3. Journal of the Royal Statistical Society: Series B, Statistical Methodology (online 1948-present, print 1946-2005)
4. Annals of Applied Statistics (online 2007-present)
5. Journal of the American Statistical Association (online 1922-present)
6. Annals of Statistics (online 1973-present)
7. Statistical Methods in Medical Research (online 1997-present)
8. Statistical Science (online 1986-present)
9. Statistics in Medicine (online 1996-present, print 1982-2006)
10. Biometrics (online 1947-present)

[Source: Thomson Reuters ScienceWatch]

Entomology journals ranked by impact

Top-ranking entomology journals

The ISI Journal Citation Reports (JCR) "impact factor" is calculated by dividing the number of citations to articles published in a journal over a certain period by the total number of articles published in that journal during the same period.

Only journals included in the "entomology" category of Journal Citation Reports were ranked. UW-Madison library subscriptions are included (in parentheses). For articles not available online, UW faculty, staff and students can request a PDF via Library Express.

#1
2008: Annual Review of Entomology (1956+ online, 1956-2007 in print)
2004-2008: Annual Review of Entomology

1981-2008: Annual Review of Entomology

#2
2008: Advances in Insect Physiology (1963+ in print)
2004-2008: Advances in Insect Physiology
1981-2008: Advances in Insect Physiology

#3
2008: Insect Molecular Biology (1997+ online, 1992-2005 in print)
2004-2008: Insect Biochemistry & Molecular Biology
1981-2008: Insect Biochemistry [became "Insect Biochemistry & Molecular Biology"]

#4
2008: Insect Biochemistry & Molecular Biology (1971+ online, 1971-2005 in print)
2004-2008: Insect Molecular Biology
1981-2008: Pesticides Monitoring Journal (1967-1981 in print)

#5
2008: Journal of Insect Physiology (1995+ online, 1957-2001 in print)
2004-2008: Journal of Insect Physiology
1981-2008: Ecological Entomology

#6
2008: Pest Management Science (1996+ online, 1970-2003 in print)
2004-2008: Medical & Veterinary Entomology (1997+ online, 1989-2005 in print)
1981-2008: Journal of Insect Physiology

#7
2008: Journal of Medical Entomology (2000+ online, 1964+ in print)
2004-2008: Systematic Entomology (1997+ online, 1976-2005 in print)
1981-2008: Insect Biochemistry & Molecular Biology

#8
2008: Biocontrol (1956-2000 in print)
2004-2008: Journal of Medical Entomology

1981-2008: Pesticide Biochemistry & Physiology (1971+ online, 1971-2002 in print)

#9
2008: Ecological Entomology (1997+ online, 1976-2005 in print)
2004-2008: Ecological Entomology
1981-2008: Insect Molecular Biology

#10
2008: Journal of Insect Conservation (1999-2004 in print)
2004-2008: Arthropod Structure & Development (1995+ online, 1971-1997 in print)
1981-2008: Physiological Entomology (1997+ online, 1976-2002 in print)

------------------------------------------

[Source: Thomson Reuters, ScienceWatch.com]

2008 Journal impact factors released

2008 Journal impact factors released

Thomson Reuters has just published the 2008 Journal Citation Reports, available to UW-Madison library users. These metrics, including the "impact factor," can be used to compare journal performance. JCR includes 8,000+ highly cited, peer-reviewed journals from around the world.

New features:

• 350+ new journals with their first published impact factor
  
• Updated 5-year impact factors and Eigenfactor metrics
  
• "Journal self cites" analyzes the contribution of self-citation to the impact factor (20 journals were dropped from JCR due to high self citation rates)
  
• "Rank in category" for each journal's subject area, along with a box plot of impact factor distribution for all journals in that category

Top 3 in Agronomy by impact factor:

1. Agricultural and Forest Meteorology
2. Theoretical and Applied Genetics
3. Advances in Agronomy

Top 3 in Entomology by impact factor:

1. Annual Review of Entomology
2. Advances in Insect Physiology
3. Insect Molecular Biology

Top 3 in Horticulture by impact factor:

1. Theoretical and Applied Genetics
2. Tree Genetics and Genomes
3. Postharvest Biology and Technology

Top 3 in Plant Sciences by impact factor:

1. Annual Review of Plant Biology
2. Annual Review of Phytopathology
3. Plant Cell

Top-ranked Journals in Ecology and Environmental Sciences

Top-ranked Journals in Ecology and Environmental Sciences

1. Annual Review of Ecology, Evolution & Systematics (1970+ online)
2. Nature (1869-1875, 1950+ online)
3. Science (1880+ online)
4. Trends in Ecology and Evolution (1995+ online)
5. Ecological Monographs (1931+ online)
6. Proceedings of the National Academy of Sciences of the USA (1915+ online)
7. Systematic Biology (1992+ online)
8. Ecology (1920+ online)
9. Ecology Letters (1998+ online)
10. The American Naturalist (1867+ online)
11. Conservation Biology (1987+ online)
12. Environmental Health Perspectives (1972+ online)
13. Molecular Ecology (1992+ online)
14. Ecological Applications (1991+ online)
15. Journal of Ecology (1913+ online)
16. Global Change Biology (1997+ online)
17. Journal of Applied Ecology (1964+ online)
18. Oecologia (1968+ online)
19. Ecosystems (1968+ online)
20. Environmental Science & Technology (1967+ online)

Based on citations per paper among journals with 10,000 or more citations, 1998-2008.

[Source: Thomson Reuters Science Watch; Sci-Bytes; What's New in Research: April 12, 2009]

UW impact ranking in agricultural sciences

Thomson Reuters, vendors of ISI Web of Science, have released "Institution Rankings in Agricultural Sciences, 1998-2008" based on citations per paper among institutions with 5,000 or more citations.

The University of Wisconsin is ranked #5 with 1,428 indexed papers garnering 14,326 citations, averaging 10.03 citations per paper.

Institutions ranked highly include:

#1 Tufts University - 18.08 citations per paper
#4 Cornell University - 10.98
#5 University of Wisconsin - 10.03
#6 University of California - Davis - 9.96
#10 Oregon State University - 9.63
#14 Rutgers State University - 9.3
#15 University of Massachusetts - 9.05
#16 Penn State University - 8.87
#17 University of Nebraska - 8.86
#18 Michigan State University - 8.82
#19 University of Illinois - 8.8

Related links:

• Web of Science / Web of Knowledge (h-index)
  
• Journal Citation Reports (impact factor, eigenfactor)
  

Impact factors: Food science journals

Food science & technology journals
ranked by 2007 impact factor:

1. Critical Reviews in Food Science and Nutrition


2. Trends in Food Science and Technology


3. Molecular Nutrition and Food Research (was Die Nahrung / Food)


4. Food Chemistry


5. Foodborne Pathogens and Disease


6. International Journal of Food Microbiology


7. Journal of Agriculture and Food Chemistry


8. Food Hydrocolloids


9. Journal of Dairy Science


10. Food Research International

"The 2007 impact factor is calculated by taking the number of all current citations to source items published in a journal over the previous two years and dividing by the number of articles published in the journal during the same period--in other words, a ratio between citations and recent citable items published."

[Source: ScienceWatch, 2/1/09]

Impact Factors: "Parasites & Vectors" + "Plant Methods"

Open access publisher BioMed Central has announced that two of its journals, Parasites & Vectors and Plant Methods, have been accepted for tracking by Thomson Reuters (vendors of ISI Web of Science) and will both receive "Impact Factors" in 2010.

"Parasites & Vectors expands upon the scope of two former BioMed Central publications, Kinetoplastid Biology and Disease and Filaria Journal, both of which ceased publication in December 2007. Launched in January 2008, the journal has rapidly become an authoritative home for research in parasitology, reflected by its acceptance for tracking by Thomson Reuters from its first issue."

"Launched in 2005, Plant Methods encompasses all aspects of technological innovation in the plant sciences. The journal seeks to stimulate the development and adoption of new and improved techniques and research tools and, where appropriate, to promote consistency of methodologies for better integration of data from different laboratories."

"These journals bring to a total of 71 BioMed Central journals that are tracked by Thomson Reuters and either have or are on course to receive an Impact Factor."

[Source: KnowledgeSpeak.com]