Bystřický PK

MOTU niches for each MOTU combination using PC3 and PC4. The niches are spanned along the PC3 and PC4 analysed by the PCA. The outline in each niche plot represents the sensu lato niche space of all analysed data points whereas the dotted inner line is the area in which 75% of the datapoints are situated. The colour of the niches correspond to the according MOTU. Blue coloration is the proportion of overlap where both MOTUs are present.

Materials and Methods Data collection Data were gathered through online questionnaires applied to 906 aquarium hobbyists from six Brazilian aquarism groups on the Facebook social network (https://www.facebook.com/), between January and March 2019.