4 Works

Data from: Sensory evolution of hearing in tettigoniids with differing communication systems

Johannes Strauß, Arne Lehmann, Gerlind Lehmann & G. U. C. Lehmann
In Tettigoniidae (Orthoptera: Ensifera), hearing organs are essential in mate detection. Male tettigoniids usually produce calling songs by tegminal stridulation, whereas females approach the males phonotactically. This unidirectional communication system is the most common one among tettigoniids. In several tettigoniid lineages, females have evolved acoustic replies to the male calling song which constitutes a bidirectional communication system. The genus Poecilimon (Tettigoniidae: Phaneropterinae) is of special interest because the ancestral state of bidirectional communication, with calling...

Data from: Species selection and the macroevolution of coral coloniality and photosymbiosis

Carl Simpson
Differences in the relative diversification rates of species with variant traits is known as species selection. Species selection can produce a macroevolutionary change in the frequencies of traits by changing the relative number of species possessing each trait over time. But species selection is not the only process that can change the frequencies of traits, phyletic microevolution of traits within species and phylogenetic trait evolution among species, the tempo and mode of microevolution, can also...

Data from: On the accuracy of paleodiversity reconstructions: a case study in Antarctic Neogene radiolarians

Johan Renaudie & David B. Lazarus
The deep-sea Cenozoic planktonic microfossil record has the unique characteristics of continuously well-preserved populations of most species, with virtually unlimited sample size, and therefore constitutes, in principle, a major resource for macroevolutionary research. Antarctic Neogene radiolarians in particular, are diverse, abundant and consistently well-preserved and evolved rapidly. This fauna is, in theory, a near-perfect testing ground for paleodiversity reconstructions. In this study we determined the diversity history of these faunas from a new quantitative, taxonomically...

Data from: Weber's law, the magnitude effect and discrimination of sugar concentrations in nectar-feeding animals

Vladislav Nachev, Kai Petra Stich & York Winter
Weber’s law quantifies the perception of difference between stimuli. For instance, it can explain why we are less likely to detect the removal of three nuts from a bowl if the bowl is full than if it is nearly empty. This is an example of the magnitude effect – the phenomenon that the subjective perception of a linear difference between a pair of stimuli progressively diminishes when the average magnitude of the stimuli increases. Although...

Registration Year

  • 2013
    4

Resource Types

  • Dataset
    4

Affiliations

  • Humboldt University of Berlin
    4
  • Smithsonian Institution
    1
  • Bielefeld University
    1
  • University of Giessen
    1