Oviposition site selection in two basin-digging Leptodactylus Fitzinger, 1826 (Anura)

Figures & data

Figure 1 Discrimination according to environmental variables related to oviposition site in two Leptodactylus (Anura) species in South Cerrado (Brazil). Above left, interspecific analysis (Leptodactylus labyrinthicus x Leptodactylus syphax). Below left – Nests and random points to L. labyrinthicus (red, inset above). Below right – Nests and random points to L. syphax (blue, inset below). Random points in black. All plots are displays of a Multidimensional Scale Analysis on Random Forest results. Inset photos not in scale.

Table 1 Features of nesting sites compared between species and between nests and random points for the two studied Leptodactylus species in South Cerrado (Brazil). Values are presented as medians (range) or frequencies.

Species	L. labyrinthicus		L. syphax
Environmental features	Nests (n = 20)	Random points (n = 40)	Nests (n = 21)	Random points (n = 42)
Exposition (% hidden)^2,3	95	50	100	24
Soil hardness (cm)^1,3	12 (0 − 40)	9 (3.3 − 23)	4 (0 − 11)	2 (0 − 8)
Water distance (cm)^2	43 (0 − 200)	90 (8 − 286)	42 (0 − 280)	165 (7 − 291)
Height in relation to water body (cm)	19 (5 − 36)	20 (5 − 89)	23 (4.5 − 143)	30 (0 − 85)
Soil slope (arch degree)^3	0 (0 − 10)	0 (0 − 40)	0 (0)	0 (0 − 70)
Maximum depth of water body (cm)	9 (3.3 − 36)	8 (2.3 − 36)	7 (4 − 33)	7 (1 − 33)
Water flow (% water bodies with lotic water)	70	67	91	95
Turbidity (% water bodies with transparent water)	80	70	86	88
Predators (% water bodies)^1	85	67	38	21
Positive dispersion of tadpoles to the water (%)	95	87	95	69
Distance to the deepest point of the stream (cm)^3	–	–	63 (0 − 296)	216 (16 − 403)

Superscripts: 1 – significantly different between both species; 2 – significantly different between nests and random points to L. labyrinthicus; 3 – significantly different between nests and random points to L. syphax. See text for p-values.