Tag: latitude

Juliformia’s size is determined by two factors: body diameter and number of rings. The researchers wanted to see if there were any links between latitude and precipitation and body rings and sexual size dimorphism (SSD) in Centrobolus. The number of body rings in females and latitude (r=-0.53, Z score=-2.35,...

The Tropical Conservativism Hypothesis proposes that processes of speciation, extinction, and dispersal resulted in higher species richness in the tropics and decreased away from the equator, implying that species richness increased in the tropics and fell away from the equator. The Biogeographical Conservativism Hypothesis proposes that the processes in...

The goal of this study was to see if forest millipedes could test the Tropical Conservativism Hypothesis and the Biogeographical Conservativism Hypothesis. To discriminate between the two ideas, the latitudinal diversity gradient (LDG) was evaluated in the Centrobolus genus. The number of species and latitudinal degrees distant from the...

Sexual Size Dimorphism (SSD) was reversed in Diplopoda, as it was in the majority of invertebrates. The goal was to examine SSD in the Sphaerotherium genus. Male and female morphological data for S. cinctellum, S. commune, S. compressum, S. punculatum, S. spinatum, S. tenuitarse, and S. tuberosum were gathered...

Forest millipedes were used to test the Tropical Conservativism Hypothesis and the Biogeographical Conservativism Hypothesis. The Biogeographical Conservativism Hypothesis proposes that the processes involved are not unique to the tropics, but rather rely on historical biogeography to determine species richness distribution. To discriminate between the two ideas, the latitudinal...