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Fig. A3. Map of the occurrences of Zonitoides arboreus s.l. and Zonitoides nitidus used for the calculation of climatic suitability for the 20 km grid resolution.
Source publication
Colonisation by, and spread of, animal species from the temperate zone are rather uncommon observations in the tropics. The study provides the first reports of two snail species of the genus Zonitoides in Sabah, Borneo, namely Z. arboreus (Say, 1819) and Z. nitidus (O.F. Müller, 1774). The identification was aided using partial sequences of 28S rDN...
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Citations
... General shape like Microcystina or Macrochlamys (Ariophantidae); differs by the umbilicate shell. Some lenticular Charopidae also have an umbilicate shell but are smaller and have a more distinct sculpture; Leucocharopion has a smaller, white shell.2.Capinha et al. (2014) describe the potential of Zonitoides as invasive species in tropical montane forest.Cowie 1997: 41; Capinha et al. 2014: 605. -Helix arboreus Say 1817: Helix sp. 2, 7th page, pl. 4, fig. 4. -Type from USA. ...
It has been argued that globalization in human-mediated dispersal of species breaks down biogeographic boundaries, yet empirical tests are still missing. We used data on native and alien ranges of terrestrial gastropods to analyze dissimilarities in species composition among 56 globally distributed regions. We found that native ranges confirm the traditional biogeographic realms, reflecting natural dispersal limitations. However, the distributions of gastropods after human transport are primarily explained by the prevailing climate and, to a smaller extent, by distance and trade relationships. Our findings show that human-mediated dispersal is causing a breakdown of biogeographic barriers, and that climate and to some extent socioeconomic relationships will define biogeography in an era of global change.
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