Rotifer fauna from Venezuela

Vasquéz, Enrique; Pardo, Maria José; Zoppi de Roa , Evelyn; López, Carlos

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Rotifer fauna from Venezuela

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Citation

Vasquéz, E., Pardo, M. J., Zoppi de Roa, E., & López, C. (1998). Rotifer fauna from Venezuela. Amazoniana: Limnologia et Oecologia Regionalis Systematis Fluminis Amazonas, 15(1/2), 11-24.

Cite as: https://hdl.handle.net/21.11116/0000-0004-9177-2

Abstract

The rotifer fauna of Venezuela is analysed in the light of previously existing literature and observations, and the unpublished results of authors. A total of 268 taxa belonging to 44 genera are recorded. The
genera Lecane, Brachionus and Trichocerca are the most diverse. Taxocoenosis consists of cosmopolitan
(68 %), pantropical (19 %), neotropical (11 %) and neartic (2 %) taxa. The proportion of endemic taxa is
comparable to other tropical regions where endemism of genus Brachionus is the highest. Only a small
number of species are quite common and occur in a wide range habitats. Flooding waterbodies have the
largest number of taxa. Some amazonian endemic taxa can be found up to 10° north latitude, while others
are restricted to the Orinoco River Basin under this latitude. Taxa generally related to coastal regions are
restricted to basins near to the Caribbean Sea.