Proceedings of the Royal Society B: Biological Sciences

Proceedings B is the Royal Society’s flagship biological research journal, accepting original articles and reviews of outstanding scientific importance and broad general interest. The main criteria for acceptance are that a study is novel, and has general significance to biologists. Articles published cover a wide range of areas within the biological sciences, many have relevance to organisms and the environments in which they live. The scope includes, but is not limited to, ecology, evolution, behaviour, health and disease epidemiology, neuroscience and cognition, behavioural genetics, development, biomechanics, palaeontology, comparative biology, molecular ecology and evolution and global change biology. Many more good manuscripts are submitted than we have space to print, and we give preference to those presenting significant advances of broad interest. Submission of preliminary reports, of articles that merely confirm previous findings, and of articles that are likely to interest only small groups of specialists, is not encouraged. Articles will only be considered where they have clear relevance to fundamental biological principles and processes. All articles are sent to an Editorial Board member for an initial assessment, and may be returned to authors without in-depth peer review if the paper is unlikely to be accepted because it is either too specialized, not sufficiently novel, or is deficient in other respects.

Quartiles

The set of journals have been ranked according to their SJR and divided into four equal groups, four quartiles. Q1 (green) comprises the quarter of the journals with the highest values, Q2 (yellow) the second highest values, Q3 (orange) the third highest values and Q4 (red) the lowest values.

Category	Year	Quartile
Agricultural and Biological Sciences (miscellaneous)	1999	Q1
Agricultural and Biological Sciences (miscellaneous)	2000	Q1
Agricultural and Biological Sciences (miscellaneous)	2001	Q1
Agricultural and Biological Sciences (miscellaneous)	2002	Q1
Agricultural and Biological Sciences (miscellaneous)	2003	Q1
Agricultural and Biological Sciences (miscellaneous)	2004	Q1
Agricultural and Biological Sciences (miscellaneous)	2005	Q1
Agricultural and Biological Sciences (miscellaneous)	2006	Q1
Agricultural and Biological Sciences (miscellaneous)	2007	Q1
Agricultural and Biological Sciences (miscellaneous)	2008	Q1
Agricultural and Biological Sciences (miscellaneous)	2009	Q1
Agricultural and Biological Sciences (miscellaneous)	2010	Q1
Agricultural and Biological Sciences (miscellaneous)	2011	Q1
Agricultural and Biological Sciences (miscellaneous)	2012	Q1
Agricultural and Biological Sciences (miscellaneous)	2013	Q1
Agricultural and Biological Sciences (miscellaneous)	2014	Q1
Agricultural and Biological Sciences (miscellaneous)	2015	Q1
Agricultural and Biological Sciences (miscellaneous)	2016	Q1
Agricultural and Biological Sciences (miscellaneous)	2017	Q1
Agricultural and Biological Sciences (miscellaneous)	2018	Q1
Agricultural and Biological Sciences (miscellaneous)	2019	Q1
Agricultural and Biological Sciences (miscellaneous)	2020	Q1
Agricultural and Biological Sciences (miscellaneous)	2021	Q1
Agricultural and Biological Sciences (miscellaneous)	2022	Q1
Agricultural and Biological Sciences (miscellaneous)	2023	Q1
Biochemistry, Genetics and Molecular Biology (miscellaneous)	1999	Q1
Biochemistry, Genetics and Molecular Biology (miscellaneous)	2000	Q1
Biochemistry, Genetics and Molecular Biology (miscellaneous)	2001	Q1
Biochemistry, Genetics and Molecular Biology (miscellaneous)	2002	Q1
Biochemistry, Genetics and Molecular Biology (miscellaneous)	2003	Q1
Biochemistry, Genetics and Molecular Biology (miscellaneous)	2004	Q1
Biochemistry, Genetics and Molecular Biology (miscellaneous)	2005	Q1
Biochemistry, Genetics and Molecular Biology (miscellaneous)	2006	Q1
Biochemistry, Genetics and Molecular Biology (miscellaneous)	2007	Q1
Biochemistry, Genetics and Molecular Biology (miscellaneous)	2008	Q1
Biochemistry, Genetics and Molecular Biology (miscellaneous)	2009	Q1
Biochemistry, Genetics and Molecular Biology (miscellaneous)	2010	Q1
Biochemistry, Genetics and Molecular Biology (miscellaneous)	2011	Q1
Biochemistry, Genetics and Molecular Biology (miscellaneous)	2012	Q1
Biochemistry, Genetics and Molecular Biology (miscellaneous)	2013	Q1
Biochemistry, Genetics and Molecular Biology (miscellaneous)	2014	Q1
Biochemistry, Genetics and Molecular Biology (miscellaneous)	2015	Q1
Biochemistry, Genetics and Molecular Biology (miscellaneous)	2016	Q1
Biochemistry, Genetics and Molecular Biology (miscellaneous)	2017	Q1
Biochemistry, Genetics and Molecular Biology (miscellaneous)	2018	Q1
Biochemistry, Genetics and Molecular Biology (miscellaneous)	2019	Q1
Biochemistry, Genetics and Molecular Biology (miscellaneous)	2020	Q1
Biochemistry, Genetics and Molecular Biology (miscellaneous)	2021	Q1
Biochemistry, Genetics and Molecular Biology (miscellaneous)	2022	Q1
Biochemistry, Genetics and Molecular Biology (miscellaneous)	2023	Q1
Environmental Science (miscellaneous)	1999	Q1
Environmental Science (miscellaneous)	2000	Q1
Environmental Science (miscellaneous)	2001	Q1
Environmental Science (miscellaneous)	2002	Q1
Environmental Science (miscellaneous)	2003	Q1
Environmental Science (miscellaneous)	2004	Q1
Environmental Science (miscellaneous)	2005	Q1
Environmental Science (miscellaneous)	2006	Q1
Environmental Science (miscellaneous)	2007	Q1
Environmental Science (miscellaneous)	2008	Q1
Environmental Science (miscellaneous)	2009	Q1
Environmental Science (miscellaneous)	2010	Q1
Environmental Science (miscellaneous)	2011	Q1
Environmental Science (miscellaneous)	2012	Q1
Environmental Science (miscellaneous)	2013	Q1
Environmental Science (miscellaneous)	2014	Q1
Environmental Science (miscellaneous)	2015	Q1
Environmental Science (miscellaneous)	2016	Q1
Environmental Science (miscellaneous)	2017	Q1
Environmental Science (miscellaneous)	2018	Q1
Environmental Science (miscellaneous)	2019	Q1
Environmental Science (miscellaneous)	2020	Q1
Environmental Science (miscellaneous)	2021	Q1
Environmental Science (miscellaneous)	2022	Q1
Environmental Science (miscellaneous)	2023	Q1
Immunology and Microbiology (miscellaneous)	1999	Q1
Immunology and Microbiology (miscellaneous)	2000	Q1
Immunology and Microbiology (miscellaneous)	2001	Q1
Immunology and Microbiology (miscellaneous)	2002	Q1
Immunology and Microbiology (miscellaneous)	2003	Q1
Immunology and Microbiology (miscellaneous)	2004	Q1
Immunology and Microbiology (miscellaneous)	2005	Q1
Immunology and Microbiology (miscellaneous)	2006	Q1
Immunology and Microbiology (miscellaneous)	2007	Q1
Immunology and Microbiology (miscellaneous)	2008	Q1
Immunology and Microbiology (miscellaneous)	2009	Q1
Immunology and Microbiology (miscellaneous)	2010	Q1
Immunology and Microbiology (miscellaneous)	2011	Q1
Immunology and Microbiology (miscellaneous)	2012	Q1
Immunology and Microbiology (miscellaneous)	2013	Q1
Immunology and Microbiology (miscellaneous)	2014	Q1
Immunology and Microbiology (miscellaneous)	2015	Q1
Immunology and Microbiology (miscellaneous)	2016	Q1
Immunology and Microbiology (miscellaneous)	2017	Q1
Immunology and Microbiology (miscellaneous)	2018	Q1
Immunology and Microbiology (miscellaneous)	2019	Q1
Immunology and Microbiology (miscellaneous)	2020	Q1
Immunology and Microbiology (miscellaneous)	2021	Q1
Immunology and Microbiology (miscellaneous)	2022	Q1
Immunology and Microbiology (miscellaneous)	2023	Q1
Medicine (miscellaneous)	1999	Q1
Medicine (miscellaneous)	2000	Q1
Medicine (miscellaneous)	2001	Q1
Medicine (miscellaneous)	2002	Q1
Medicine (miscellaneous)	2003	Q1
Medicine (miscellaneous)	2004	Q1
Medicine (miscellaneous)	2005	Q1
Medicine (miscellaneous)	2006	Q1
Medicine (miscellaneous)	2007	Q1
Medicine (miscellaneous)	2008	Q1
Medicine (miscellaneous)	2009	Q1
Medicine (miscellaneous)	2010	Q1
Medicine (miscellaneous)	2011	Q1
Medicine (miscellaneous)	2012	Q1
Medicine (miscellaneous)	2013	Q1
Medicine (miscellaneous)	2014	Q1
Medicine (miscellaneous)	2015	Q1
Medicine (miscellaneous)	2016	Q1
Medicine (miscellaneous)	2017	Q1
Medicine (miscellaneous)	2018	Q1
Medicine (miscellaneous)	2019	Q1
Medicine (miscellaneous)	2020	Q1
Medicine (miscellaneous)	2021	Q1
Medicine (miscellaneous)	2022	Q1
Medicine (miscellaneous)	2023	Q1

SJR

The SJR is a size-independent prestige indicator that ranks journals by their 'average prestige per article'. It is based on the idea that 'all citations are not created equal'. SJR is a measure of scientific influence of journals that accounts for both the number of citations received by a journal and the importance or prestige of the journals where such citations come from It measures the scientific influence of the average article in a journal, it expresses how central to the global scientific discussion an average article of the journal is.

Year	SJR
1999	2.552
2000	2.509
2001	2.721
2002	3.083
2003	2.955
2004	2.956
2005	2.767
2006	3.028
2007	2.980
2008	2.943
2009	3.345
2010	3.288
2011	3.555
2012	3.258
2013	3.441
2014	3.422
2015	3.693
2016	3.414
2017	2.826
2018	2.722
2019	2.626
2020	2.342
2021	1.987
2022	1.898
2023	1.692

Total Documents

Evolution of the number of published documents. All types of documents are considered, including citable and non citable documents.

Year	Documents
1999	362
2000	364
2001	363
2002	347
2003	427
2004	509
2005	349
2006	418
2007	405
2008	359
2009	511
2010	462
2011	516
2012	631
2013	608
2014	628
2015	593
2016	553
2017	611
2018	573
2019	592
2020	608
2021	633
2022	568
2023	564

Citations per document

This indicator counts the number of citations received by documents from a journal and divides them by the total number of documents published in that journal. The chart shows the evolution of the average number of times documents published in a journal in the past two, three and four years have been cited in the current year. The two years line is equivalent to journal impact factor ™ (Thomson Reuters) metric.

Cites per document	Year	Value
Cites / Doc. (4 years)	1999	3.156
Cites / Doc. (4 years)	2000	3.405
Cites / Doc. (4 years)	2001	3.603
Cites / Doc. (4 years)	2002	3.901
Cites / Doc. (4 years)	2003	4.072
Cites / Doc. (4 years)	2004	4.364
Cites / Doc. (4 years)	2005	4.501
Cites / Doc. (4 years)	2006	4.888
Cites / Doc. (4 years)	2007	5.304
Cites / Doc. (4 years)	2008	5.048
Cites / Doc. (4 years)	2009	5.788
Cites / Doc. (4 years)	2010	5.930
Cites / Doc. (4 years)	2011	6.175
Cites / Doc. (4 years)	2012	6.174
Cites / Doc. (4 years)	2013	6.306
Cites / Doc. (4 years)	2014	5.981
Cites / Doc. (4 years)	2015	5.929
Cites / Doc. (4 years)	2016	5.872
Cites / Doc. (4 years)	2017	5.884
Cites / Doc. (4 years)	2018	5.200
Cites / Doc. (4 years)	2019	5.322
Cites / Doc. (4 years)	2020	5.007
Cites / Doc. (4 years)	2021	5.582
Cites / Doc. (4 years)	2022	5.224
Cites / Doc. (4 years)	2023	4.436
Cites / Doc. (3 years)	1999	3.156
Cites / Doc. (3 years)	2000	3.326
Cites / Doc. (3 years)	2001	3.590
Cites / Doc. (3 years)	2002	3.718
Cites / Doc. (3 years)	2003	3.983
Cites / Doc. (3 years)	2004	4.210
Cites / Doc. (3 years)	2005	4.304
Cites / Doc. (3 years)	2006	4.746
Cites / Doc. (3 years)	2007	4.827
Cites / Doc. (3 years)	2008	4.914
Cites / Doc. (3 years)	2009	5.700
Cites / Doc. (3 years)	2010	5.773
Cites / Doc. (3 years)	2011	6.023
Cites / Doc. (3 years)	2012	6.120
Cites / Doc. (3 years)	2013	6.143
Cites / Doc. (3 years)	2014	5.852
Cites / Doc. (3 years)	2015	5.838
Cites / Doc. (3 years)	2016	5.669
Cites / Doc. (3 years)	2017	5.552
Cites / Doc. (3 years)	2018	4.931
Cites / Doc. (3 years)	2019	4.891
Cites / Doc. (3 years)	2020	4.815
Cites / Doc. (3 years)	2021	5.499
Cites / Doc. (3 years)	2022	4.945
Cites / Doc. (3 years)	2023	4.194
Cites / Doc. (2 years)	1999	2.852
Cites / Doc. (2 years)	2000	3.240
Cites / Doc. (2 years)	2001	3.288
Cites / Doc. (2 years)	2002	3.541
Cites / Doc. (2 years)	2003	3.749
Cites / Doc. (2 years)	2004	3.915
Cites / Doc. (2 years)	2005	4.060
Cites / Doc. (2 years)	2006	4.082
Cites / Doc. (2 years)	2007	4.480
Cites / Doc. (2 years)	2008	4.600
Cites / Doc. (2 years)	2009	5.191
Cites / Doc. (2 years)	2010	5.521
Cites / Doc. (2 years)	2011	5.777
Cites / Doc. (2 years)	2012	5.850
Cites / Doc. (2 years)	2013	5.914
Cites / Doc. (2 years)	2014	5.567
Cites / Doc. (2 years)	2015	5.384
Cites / Doc. (2 years)	2016	5.308
Cites / Doc. (2 years)	2017	5.072
Cites / Doc. (2 years)	2018	4.192
Cites / Doc. (2 years)	2019	4.562
Cites / Doc. (2 years)	2020	4.669
Cites / Doc. (2 years)	2021	5.050
Cites / Doc. (2 years)	2022	4.556
Cites / Doc. (2 years)	2023	3.553

Total Cites

Self-Cites

Evolution of the total number of citations and journal's self-citations received by a journal's published documents during the three previous years.
Journal Self-citation is defined as the number of citation from a journal citing article to articles published by the same journal.

Cites	Year	Value
Self Cites	1999	272
Self Cites	2000	316
Self Cites	2001	325
Self Cites	2002	321
Self Cites	2003	323
Self Cites	2004	365
Self Cites	2005	310
Self Cites	2006	342
Self Cites	2007	303
Self Cites	2008	183
Self Cites	2009	332
Self Cites	2010	252
Self Cites	2011	346
Self Cites	2012	342
Self Cites	2013	426
Self Cites	2014	378
Self Cites	2015	396
Self Cites	2016	330
Self Cites	2017	330
Self Cites	2018	237
Self Cites	2019	278
Self Cites	2020	275
Self Cites	2021	250
Self Cites	2022	278
Self Cites	2023	184
Total Cites	1999	2695
Total Cites	2000	3180
Total Cites	2001	3834
Total Cites	2002	4049
Total Cites	2003	4278
Total Cites	2004	4787
Total Cites	2005	5522
Total Cites	2006	6098
Total Cites	2007	6159
Total Cites	2008	5759
Total Cites	2009	6737
Total Cites	2010	7360
Total Cites	2011	8023
Total Cites	2012	9112
Total Cites	2013	9884
Total Cites	2014	10271
Total Cites	2015	10899
Total Cites	2016	10368
Total Cites	2017	9849
Total Cites	2018	8663
Total Cites	2019	8495
Total Cites	2020	8552
Total Cites	2021	9750
Total Cites	2022	9065
Total Cites	2023	7587

External Cites per Doc

Cites per Doc

Evolution of the number of total citation per document and external citation per document (i.e. journal self-citations removed) received by a journal's published documents during the three previous years. External citations are calculated by subtracting the number of self-citations from the total number of citations received by the journal’s documents.

Cites	Year	Value
External Cites per document	1999	2.837
External Cites per document	2000	2.996
External Cites per document	2001	3.286
External Cites per document	2002	3.423
External Cites per document	2003	3.682
External Cites per document	2004	3.889
External Cites per document	2005	4.062
External Cites per document	2006	4.479
External Cites per document	2007	4.589
External Cites per document	2008	4.758
External Cites per document	2009	5.419
External Cites per document	2010	5.575
External Cites per document	2011	5.764
External Cites per document	2012	5.890
External Cites per document	2013	5.878
External Cites per document	2014	5.637
External Cites per document	2015	5.626
External Cites per document	2016	5.488
External Cites per document	2017	5.366
External Cites per document	2018	4.796
External Cites per document	2019	4.731
External Cites per document	2020	4.660
External Cites per document	2021	5.358
External Cites per document	2022	4.794
External Cites per document	2023	4.092
Cites per document	1999	3.156
Cites per document	2000	3.326
Cites per document	2001	3.590
Cites per document	2002	3.718
Cites per document	2003	3.983
Cites per document	2004	4.210
Cites per document	2005	4.304
Cites per document	2006	4.746
Cites per document	2007	4.827
Cites per document	2008	4.914
Cites per document	2009	5.700
Cites per document	2010	5.773
Cites per document	2011	6.023
Cites per document	2012	6.120
Cites per document	2013	6.143
Cites per document	2014	5.852
Cites per document	2015	5.838
Cites per document	2016	5.669
Cites per document	2017	5.552
Cites per document	2018	4.931
Cites per document	2019	4.891
Cites per document	2020	4.815
Cites per document	2021	5.499
Cites per document	2022	4.945
Cites per document	2023	4.194

% International Collaboration

International Collaboration accounts for the articles that have been produced by researchers from several countries. The chart shows the ratio of a journal's documents signed by researchers from more than one country; that is including more than one country address.

Year	International Collaboration
1999	32.04
2000	16.76
2001	1.38
2002	6.05
2003	39.81
2004	42.04
2005	47.28
2006	43.30
2007	48.64
2008	44.29
2009	45.99
2010	45.02
2011	50.00
2012	48.34
2013	49.84
2014	50.64
2015	53.29
2016	50.27
2017	52.05
2018	50.61
2019	54.56
2020	53.29
2021	54.82
2022	57.57
2023	54.96

Citable documents

Non-citable documents

Not every article in a journal is considered primary research and therefore "citable", this chart shows the ratio of a journal's articles including substantial research (research articles, conference papers and reviews) in three year windows vs. those documents other than research articles, reviews and conference papers.

Documents	Year	Value
Non-citable documents	1999	0
Non-citable documents	2000	1
Non-citable documents	2001	2
Non-citable documents	2002	4
Non-citable documents	2003	3
Non-citable documents	2004	4
Non-citable documents	2005	2
Non-citable documents	2006	3
Non-citable documents	2007	7
Non-citable documents	2008	11
Non-citable documents	2009	21
Non-citable documents	2010	24
Non-citable documents	2011	29
Non-citable documents	2012	32
Non-citable documents	2013	26
Non-citable documents	2014	27
Non-citable documents	2015	27
Non-citable documents	2016	32
Non-citable documents	2017	33
Non-citable documents	2018	34
Non-citable documents	2019	39
Non-citable documents	2020	35
Non-citable documents	2021	22
Non-citable documents	2022	23
Non-citable documents	2023	30
Citable documents	1999	854
Citable documents	2000	955
Citable documents	2001	1066
Citable documents	2002	1085
Citable documents	2003	1071
Citable documents	2004	1133
Citable documents	2005	1281
Citable documents	2006	1282
Citable documents	2007	1269
Citable documents	2008	1161
Citable documents	2009	1161
Citable documents	2010	1251
Citable documents	2011	1303
Citable documents	2012	1457
Citable documents	2013	1583
Citable documents	2014	1728
Citable documents	2015	1840
Citable documents	2016	1797
Citable documents	2017	1741
Citable documents	2018	1723
Citable documents	2019	1698
Citable documents	2020	1741
Citable documents	2021	1751
Citable documents	2022	1810
Citable documents	2023	1779

Cited documents

Uncited documents

Ratio of a journal's items, grouped in three years windows, that have been cited at least once vs. those not cited during the following year.

Documents	Year	Value
Uncited documents	1999	133
Uncited documents	2000	137
Uncited documents	2001	164
Uncited documents	2002	140
Uncited documents	2003	111
Uncited documents	2004	141
Uncited documents	2005	143
Uncited documents	2006	134
Uncited documents	2007	106
Uncited documents	2008	105
Uncited documents	2009	71
Uncited documents	2010	86
Uncited documents	2011	75
Uncited documents	2012	92
Uncited documents	2013	102
Uncited documents	2014	125
Uncited documents	2015	123
Uncited documents	2016	141
Uncited documents	2017	134
Uncited documents	2018	170
Uncited documents	2019	146
Uncited documents	2020	175
Uncited documents	2021	161
Uncited documents	2022	166
Uncited documents	2023	220
Cited documents	1999	721
Cited documents	2000	819
Cited documents	2001	904
Cited documents	2002	949
Cited documents	2003	963
Cited documents	2004	996
Cited documents	2005	1140
Cited documents	2006	1151
Cited documents	2007	1170
Cited documents	2008	1067
Cited documents	2009	1111
Cited documents	2010	1189
Cited documents	2011	1257
Cited documents	2012	1397
Cited documents	2013	1507
Cited documents	2014	1630
Cited documents	2015	1744
Cited documents	2016	1688
Cited documents	2017	1640
Cited documents	2018	1587
Cited documents	2019	1591
Cited documents	2020	1601
Cited documents	2021	1612
Cited documents	2022	1667
Cited documents	2023	1589

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