FIGURE 3 in Morphological and genetic diversification of pygmy and marbled newts, with the description of a new species from the wider Lisbon Peninsula (Triturus, Salamandridae)

FIGURE 3 (A) Genetically investigated populations of large-bodied newts from the western part of the Iberian Peninsula plotted with the nearest point method, with a maximum spatial extrapolation of ca. 25 km. Colour codes are: blue – T. marmoratus, red – T. pygmaeus and ochre – T. rudolfi sp. nov. Inferred hybrid populations of T. marmoratus and 'T. pygmaeus' are shown in grey (as in fig. 2). Note that populations from densely sampled areas do not always stand out separately. Five populations from along the lower Tejo area added a posteriori are shown by black dots. The boxed area in between 39.3-39.7 N encompasses the transect studied for spatial variation in morphometrics (35 populations), Nlinks (35 populations), mitochondrial DNA (69 populations) and nuclear genetic composition (82 populations) with HZAR software (for results see fig. 4). The nominal centre of the T. pygmaeus – T. rudolfi sp. nov. hybrid zone is at Entroncamento railway station (E, coordinates -8.478 E, 39.456 N). (B) Dirichlet tessellation of populations studied for variation in nuclear genetic composition, with colours like above. The yellow to red colour bar corresponds to the one shown in fig. 4. Distances in km are relative to Entroncamento railway station. Downloaded from Brill.com 07/10/2024 02:01:22PM via Open Access. This is an open access article distributed under the terms of the CC BY 4.0 license. https://creativecommons.org/licenses/by/4.0/