Tab. 2 in Colorful invasion in permissive Neotropical ecosystems: establishment of ornamental non-native poeciliids of the genera Poecilia / Xiphophorus (Cyprinodontiformes: Poeciliidae) and management alternatives

Tab. 2. Total absolute/relative frequencies and adult-to-juvenile ratio of ornamental non-native poeciliid species collected in the creeks in 2003, 2004, 2005 and 2006. Adult (♀+♂), juvenile (J). * Indicates the significant values for adult-to-juvenile ratio (Chi-square, P <0.05, χ 2 = 3.841, d.f. = 1). 0.05 SpeciesBoa VistaPinheirosSanto AntônioChatoGavião%/Adult-juvenile ratio♀♂J♀♂ JJ♀♂J♀♂J♀♂JPoecilia reticulata8724442103104 5315315141922,2586014013,4275903171,270% (♀+♂/J)20.0779.9333.05 71.9523.8276.1822.62 77.3841.6658.34Chi-square (♀+♂/J)198.12*142.24*812.66*1.327.76*60.52*Poecilia sphenops--16891341242143175-% (♀+♂/J)--43.1758.8368.75 31.25-Chi-square (♀+♂/J)--11.2*78.75*-Poecilia velifera--9753243--% (♀+♂/J)--38.1761.83--Chi-square (♀+♂/J)--22.00*--Xiphophorus hellerii1405620314543 22522520810840136319569753676530% (♀+♂/J)32.5533.7245.52 54.4844.0755.9344.4655.5453.5946.41Chi-square (♀+♂/J)0.123.3210.08*15.4*5.88*Xiphophorus maculatus807715116184 138138128132110261156120355207133% (♀+♂/J)50.9749.0363.97 36.0370.27 29.7377.6522.3580.8619.14Chi-square (♀+♂/J)0.1229.9*60.8*164.26*264.8*Xiphophorus variatus-119103 351351278752692841044945382651,002% (♀+♂/J)-38.74 61.2661.2656.7543.2543.9956.0144.4955.51Chi-square (♀+♂/J)-23.94*11.34*12.74*21.94*