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Table 3 Sex ratio and inferred reproductive mode in European Triops cancriformis. The number (n) of individual males and females/hermaphrodites and the male proportion per pond are given. The results of the Chi-Square test to infer deviations from a null hypothesis of equal sex ratio and the inferred type of reproductive mode are provided (see text). In the populations investigated here, the collection year is indicated under the Reference heading.

From: Recent evolution of alternative reproductive modes in the 'living fossil' Triops cancriformis

Location nmale nfemale/hermaphrodite prop. of males p value (Chi-Square) Inferred reproductive mode Reference
Baillargues, France 0 200 0.000 <0.0001 hermaphrodite [35]
Neuburg, Germany 0 102 0.000 <0.0001 hermaphrodite own data (2004–2006)
Jaktorów, Poland 0 40 0.000 <0.0001 hermaphrodite [75]
Zabieniec, Poland 0 40 0.000 <0.0001 hermaphrodite [75]
Godshill pond, United Kingdom 0 25 0.000 <0.0001 hermaphrodite this paper (2004–2006)
Königswartha (KOE25), Germany 2 32 0.059 <0.0001 androdioecious this paper (2006)
Bavaria, Germany 8 1000 0.008 <0.0001 androdioecious [76]
Augsburg, Germany 7 568 0.012 <0.0001 androdioecious [77]
Königswartha (KOE12), Germany 10 95 0.095 <0.0001 androdioecious this paper (2004 to 2006)
Cracow, Poland 16 144 0.100 <0.0001 androdioecious [78]
Königswartha (KOE27), Germany 14 123 0.102 <0.0001 androdioecious this paper (2006)
Wroclaw, Poland 114 912 0.111 <0.0001 androdioecious [79]
unknown location, Hungary 9 34 0.209 0.0001 androdioecious [80]
Wroclaw, Poland 29 88 0.248 <0.0001 androdioecious [79]
Lake Balaton, Hungary 15 45 0.250 0.0001 androdioecious [81]
Lake Balaton, Hungary 7 19 0.269 0.0186 androdioecious [81]
Cracow, Poland 154 395 0.281 <0.0001 androdioecious [78]
Algarve, Portugal 19 23 0.452 0.5371 bisexual [82]
Algarve, Portugal 54 22 0.711 0.0002 bisexual [82]
Espolla, Spain 64 57 0.529 0.5245 bisexual this paper (2006)
Espolla, Spain 1723 1775 0.493 0.3872 bisexual [33]