Taxonomic notes on the Asian frogs of the tribe Paini (Ranidae, Dicroglossinae): 1. Morphology and synonymy of Chaparana aenea (Smith, 1922), with proposal of a new statistical method for testing homogeneity of small samples Author Dubois, Alain Author Ohler, Annemarie text Journal of Natural History 2005 2005-09-30 39 20 1759 1778 http://dx.doi.org/10.1080/00222930400023735 journal article 310544 10.1080/00222930400023735 7c530694-ff68-472a-8b7d-d9ca5f1253d4 1464-5262 5215025

Table III. Comparison by Mann–Whitney U test of the first three regression factor scores (RFS) generated by principal component analysis based on 32 measurements between subsamples of a sample of 13 specimens of Chaparana aenea (Smith, 1922) (see Table II).

				Mann–
Criteria of construction of subsamples: (G) geographic origin: Thailand (G1) versus Vietnam + China (G2); (S) sex: males (S1) versus females (S2); (D) ontogenetic stage: juveniles (D1) versus adults (D2). The sex of two juveniles is unknown, hence the total sample of 11 instead of 13 for the criterion ‘‘sex’’. For each criterion of comparison, minimum and maximum values of RFS given for subsamples are those obtained by PCA for the first (RFS 1), second (RFS 2) and third (RFS 3) regression factor scores. Significance levels before Bonferroni correction (BBC): ns, not significant, P.0.05; * P ǩ0.05; significance levels after Bonferroni correction (ABC): ns, not significant, P.0.0167; * P ǩ0.0167.
Subsamples	Regression			Whitney	BBC	ABC
compared	factor score	First subsample	Second subsample	U test	a 50.05	a '5 0.0167
Geographic	RFS 1	G1 (n 55)	G2 (n 58)	U 520.0	ns	ns
origin		21.852–0.818	21.473–1.191	P 51.00
Geographic	RFS 2	G1 (n 55)	G2 (n 58)	U 515.0	ns	ns
origin		20.482–1.727	21.497–1.378	P 50.52
Geographic	RFS 3	G1 (n 55)	G2 (n 58)	U 513.0	ns	ns
origin		21.033–2.182	21.281–0.727	P 50.354
Sex	RFS 1	S1 (n 59)	S2 (n 52)	U 52.0	ns	ns
		21.852–1.049	0.700–1.191	P 50.15
Sex	RFS 2	S1 (n 59)	S2 (n 52)	U 56.0	ns	ns
		21.497–1.378	21.029–20.248	P 50.58
Sex	RFS 3	S1 (n 59)	S2 (n 52)	U 56.0	ns	ns
		21.281–0.968	0.208–0.083	P 50.58
Ontogenetic	RFS 1	D1 (n 59)	D2 (n 54)	U 53.0	*	ns
stage		21.473–1.191	21.852–20.125	P 50.02
Ontogenetic	RFS 2	D1 (n 59)	D2 (n 54)	U 510.0	ns	ns
stage		21.497–1.727	21.129–20.159	P 50.26
Ontogenetic	RFS 3	D1 (n 59)	D2 (n 54)	U 511.0	ns	ns
stage		21.033–2.182	21.281–0.968	P 50.33