Green-beard effect

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Green-beard effect

Quality:

Green-beard effect - hypothesis for altruism in evolutionary biology. Article “Green-beard effect” in English Wikipedia has 32.2 points for quality (as of July 1, 2025). The article contains 18 references and 7 sections.

In this language version of Wikipedia the article has the best quality. Also, this article is the most popular in that (English) language version.

Since the creation of article “Green-beard effect”, its content was written by 86 registered users of English Wikipedia and edited by 146 registered Wikipedia users in all languages.

The article is cited 34 times in English Wikipedia and cited 101 times in all languages.

The highest Authors Interest rank from 2001:

  • Local (English): #61508 in November 2009
  • Global: #133210 in February 2017

The highest popularity rank from 2008:

  • Local (English): #146953 in April 2021
  • Global: #248819 in April 2021

There are 11 language versions for this article in the WikiRank database (of the considered 55 Wikipedia language editions).

The quality and popularity assessment was based on Wikipédia dumps from July 1, 2025 (including revision history and pageviews for previous years).

The table below shows the language versions of the article with the highest quality.

Languages with the highest quality

#LanguageQuality gradeQuality score
1English (en)
Green-beard effect
32.1889
2Galician (gl)
Efecto barba verde
22.532
3French (fr)
Effet green-beard
22.0429
4Italian (it)
Effetto barba verde
21.3909
5Japanese (ja)
緑髭効果
18.2546
6Spanish (es)
Efecto barba verde
17.9922
7Finnish (fi)
Vihreän parran ilmiö
14.5062
8Portuguese (pt)
Efeito barba verde
12.902
9Czech (cs)
Efekt zelenovouse
12.8346
10Polish (pl)
Efekt zielonej brody
1.8577
More...

The following table shows the most popular language versions of the article.

Most popular in all the time

The most popular language versions of the article "Green-beard effect" in all the time
#LanguagePopularity awardRelative popularity
1English (en)
Green-beard effect
379 512
2Japanese (ja)
緑髭効果
24 115
3Spanish (es)
Efecto barba verde
18 315
4French (fr)
Effet green-beard
8 459
5Polish (pl)
Efekt zielonej brody
8 419
6Finnish (fi)
Vihreän parran ilmiö
3 915
7Italian (it)
Effetto barba verde
2 614
8Czech (cs)
Efekt zelenovouse
1 957
9Portuguese (pt)
Efeito barba verde
1 166
10Galician (gl)
Efecto barba verde
572
More...

The following table shows the language versions of the article with the highest popularity in the last month.

Most popular in June 2025

The most popular language versions of the article "Green-beard effect" in June 2025
#LanguagePopularity awardRelative popularity
1English (en)
Green-beard effect
1 849
2Japanese (ja)
緑髭効果
107
3Spanish (es)
Efecto barba verde
49
4Czech (cs)
Efekt zelenovouse
23
5French (fr)
Effet green-beard
23
6Italian (it)
Effetto barba verde
18
7Portuguese (pt)
Efeito barba verde
16
8Polish (pl)
Efekt zielonej brody
13
9Persian (fa)
اثر ریش سبز
10
10Galician (gl)
Efecto barba verde
9
More...

The following table shows the language versions of the article with the highest Authors’ Interest.

The highest AI

Language versions of the article "Green-beard effect" with the highest Authors Interest (number of authors). Only registered Wikipedia users were taken into account.
#LanguageAI awardRelative AI
1English (en)
Green-beard effect
86
2French (fr)
Effet green-beard
13
3Polish (pl)
Efekt zielonej brody
11
4Spanish (es)
Efecto barba verde
8
5Japanese (ja)
緑髭効果
8
6Finnish (fi)
Vihreän parran ilmiö
6
7Italian (it)
Effetto barba verde
6
8Galician (gl)
Efecto barba verde
3
9Portuguese (pt)
Efeito barba verde
3
10Czech (cs)
Efekt zelenovouse
1
More...

The following table shows the language versions of the article with the highest Authors’ Interest in the last month.

The highest AI in June 2025

Language versions of the article "Green-beard effect" with the highest AI in June 2025
#LanguageAI awardRelative AI
1Czech (cs)
Efekt zelenovouse
0
2English (en)
Green-beard effect
0
3Spanish (es)
Efecto barba verde
0
4Persian (fa)
اثر ریش سبز
0
5Finnish (fi)
Vihreän parran ilmiö
0
6French (fr)
Effet green-beard
0
7Galician (gl)
Efecto barba verde
0
8Italian (it)
Effetto barba verde
0
9Japanese (ja)
緑髭効果
0
10Polish (pl)
Efekt zielonej brody
0
More...

The following table shows the language versions of the article with the highest number of citations.

The highest CI

Language versions of the article "Green-beard effect" with the highest Citation Index (CI)
#LanguageCI awardRelative CI
1Japanese (ja)
緑髭効果
37
2English (en)
Green-beard effect
34
3Galician (gl)
Efecto barba verde
7
4French (fr)
Effet green-beard
6
5Czech (cs)
Efekt zelenovouse
5
6Spanish (es)
Efecto barba verde
5
7Persian (fa)
اثر ریش سبز
2
8Italian (it)
Effetto barba verde
2
9Finnish (fi)
Vihreän parran ilmiö
1
10Polish (pl)
Efekt zielonej brody
1
More...

Scores

Estimated value for Wikipedia:
English:
Global:
Popularity in June 2025:
English:
Global:
Popularity in all years:
English:
Global:
Authors in June 2025:
English:
Global:
Registered authors in all years:
English:
Global:
Citations:
English:
Global:

Quality measures

Interwikis

#LanguageValue
csCzech
Efekt zelenovouse
enEnglish
Green-beard effect
esSpanish
Efecto barba verde
faPersian
اثر ریش سبز
fiFinnish
Vihreän parran ilmiö
frFrench
Effet green-beard
glGalician
Efecto barba verde
itItalian
Effetto barba verde
jaJapanese
緑髭効果
plPolish
Efekt zielonej brody
ptPortuguese
Efeito barba verde

Popularity rank trends

Best Rank English:
#146953
04.2021
Global:
#248819
04.2021

AI rank trends

Best Rank English:
#61508
11.2009
Global:
#133210
02.2017

Languages comparison

Important global interconnections (July 2024 – June 2025)

Wikipedia readers most often find their way to information on Green-beard effect from Wikipedia articles about Signalling theory, The Selfish Gene, Gene-centered view of evolution, Haplodiploidy and Kin selection. Whereas reading the article about Green-beard effect people most often go to Wikipedia articles on Maternal effect dominant embryonic arrest, Biological altruism, The Selfish Gene, Gene-centered view of evolution and Reciprocal altruism.

Cumulative results of quality and popularity of the Wikipedia article

List of Wikipedia articles in different languages (starting with the most popular):

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About WikiRank

The WikiRank project is intended for automatic relative evaluation of the articles in the various language versions of Wikipedia. At the moment the service allows to compare over 44 million Wikipedia articles in 55 languages. Quality scores of articles are based on Wikipedia dumps from July, 2025. When calculating current popularity and AI of articles data from June 2025 was taken into account. For historical values of popularity and AI WikiRank used data from 2001 to 2025... More information