Colorful invasion in permissive Neotropical ecosystems: establishment of ornamental non-native poeciliids of the genera Poecilia / Xiphophorus (Cyprinodontiformes: Poeciliidae) and management alternatives Author Magalhães, André Lincoln Barroso Programa de Pós-graduação em Tecnologias para o Desenvolvimento Sustentável, Universidade Federal de São João Del Rei, Rodovia MG 443, KM 7, Fazenda do Cadete, 36420 - 000 Ouro Branco, MG, Brazil andrebiomagalhaes@gmail.com Author Jacobi, Claudia Maria Departamento de Biologia Geral, Universidade Federal de Minas Gerais, Avenida Antônio Carlos, 6227, 31270 - 901 Belo Horizonte, MG, Brazil jacobi@icb.ufmg.br text Neotropical Ichthyology 2017 2017-03-23 15 1 e 160094 e 160094 http://dx.doi.org/10.1590/1982-0224-20160094 journal article 10.1590/1982-0224-20160094 1982-0224 20088348

Tab. 3. Bimonthly and total sex ratio of ornamental non-native poeciliid species collected in the creeks in 2003, 2004, 2005 and 2006. * Indicates the significant values for sex ratio (Chi-square, P <0.05, χ 2 = 3.841, d.f. = 1). 0.05

Species/Sex ratio	Boa Vista	Pinheiros	Santo Antônio	Chato	Gavião
Poecilia reticulata
January-February	5.40*	3.58	66.56*	5.36*	13.30*
March-April	1.00	1.48	23.52*	4.26*	40.82*
May-June	9.00*	0.00	13.12*	11.02*	12.48*
July-August	9.32*	2.32	32.50*	4.78*	9.26*
September-October	9.00*	0.14	12.94*	10.32*	4.94*
November-December	1.60	1.00	16.82*	5.90*	11.74*
Total/SR ♀: ♂	34.94*/3.5	0.00/0.99	146.86*/2.68	39.92*/1.50	82.18*/1.86
Poecilia sphenops
January-February	-	-	7.36*	10.22*	-
March-April	-	-	0.00	11.60*	-
May-June	-	-	9.94*	1.14	-
July-August	-	-	12.30*	3.58	-
September-October	-	-	19.46*	1.14	-
November-December	-	-	1.42	0.06	-
Total/SR ♀: ♂	-	-	22.88*/1.85	25.46*/1.69	-
Poecilia velifera
January-February	-	-	2.00	-	-
March-April	-	-	0.00	-	-
May-June	-	-	0.00	-	-
July-August	-	-	11.58*	-	-
September-October	-	-	4.90*	-	-
November-December	-	-	0.66	-	-
Total/SR ♀: ♂	-	-	12.90*/1.83	-	-
Xiphophorus hellerii
January-February	2.46	3.76	10.66*	10.34*	47.12*
March-April	2.66	9.32*	1.00	28.60*	89.72*
May-June	28.58*	0.80	13.50*	8.68*	35.28*
July-August	11.36*	14.28*	1.00	7.18*	66.22*
September-October	0.42	22.50*	5.06*	2.78	69.20*
November-December	0.50	11.76*	5.36*	0.02	45.74*
Total/SR ♀: ♂	36.00*/2.5	55.34*/3.40	31.64*/1.93	50.58*/1.86	345.75*/7.05
Xiphophorus maculatus
January-February	0.88	0.66	2.88	0.14	3.62
March-April	0.34	12.24*	0.00	22.74*	28.34*
May-June	0.58	7.12*	1.80	1.04	5.26*
July-August	0.03	3.86*	0.52	0.36	3.00
September-October	0.22	0.68	0.00	6.12*	0.74
November-December	1.34	15.52*	0.02	0.02	3.04
Total/SR ♀: ♂	0.00/1	24.20*/1.90	0.06/0.97	26.44*/1.67	38.98*/1.71
Xiphophorus variatus
January-February	-	0.00	1.00	5.46*	41.68*
March-April	-	0.06	4.00*	32.58*	4.64*
May-June	-	0.00	0.34	49.00*	11.52*
July-August	-	0.56	50.76*	34.10*	7.90*
September-October	-	2.36	58.78*	25.00*	16.46*
November-December	-	0.52	10.66*	11.92*	26.42*
Total/SR ♀: ♂	-	1.16/1.15	116.74*/3.71	83.50*/2.73	92.82*/2.03