Tropical Amphi-Pacific disjunctions in the Cladocera (Crustacea: Branchiopoda)

Abstract

Tropical Amphi-Pacific and trans-Pacific disjunctions

How do freshwater organisms cross the “dry ocean”? A review on passive dispersal and colonization processes with a special focus on temporary ponds

“…Although papers documenting passive dispersal of adult microcrustaceans, water mites and plants are available in the literature (Dahms, 1995;Di Sabatino et al, 2004;Allen, 2007;Frisch & Green, 2007;van Leeuwen et al, 2013;Bruckerhoff et al, 2014), passive dispersal mechanisms more generally require the production of resting stages able to survive unfavourable environmental conditions and to act as dispersal propagules, functionally performing as plant seeds (see Van Damme & Sinev, 2013). Resting stages are the most important propagules for many aquatic taxa (Rundle et al, 2002) and are easily transported by different physical and biological vectors (Fig.…”

“…Drake et al, 2005 and literature therein). In addition, their ability to sink, to float or to remain attached to plants or sediment particles (Brendonck & De Meester, 2003;Van Damme & Sinev, 2013) actually contribute to determine the dispersal vector(s) and thus the range of dispersal.…”

Populations of Flavalona setigera (Brehm, 1931) in Brazil belong to a new species: Flavalona asymmetrica (Cladocera: Chydoridae: Aloninae)

“…nov. is endemic from the Neotropics. Trans-Pacific distribution is not common in Cladocera, however, a similar pattern known as Amphi-Pacific disjunction was mentioned as a strong hypothesis of divergence between species of Leydigiopsis Sars, 1901 (Van Damme andSinev, 2013), brandorffi-clade of Anthalona Van Damme, Sinev & Dumont, 2011(Tiang-nga et al, 2016, and Magnospina Sousa, Elmoor-Loureiro & Santos, 2016(Sousa et al, 2016bVan Damme and Sinev, 2013).…”

“…Flavalona asymmetrica sp. nov. and F. setigera are distributed along trans-Pacific areas, with F. setigera occurring in Australia, Indonesia, Tasmania, New Zealand, and some Pacific oceanic islands (Smirnov and Tims, 1983;Sinev, 1999a;Van Damme and Sinev, 2013;Sinev and Dumont, 2016). Flavalona asymmetrica sp.…”

Front Matter

“…New taxa in the Copepoda comprise a new subgenus of Tropocyclops Kiefer, 1927, new species in Eucyclops Claus, 1893, Mesocyclops Sars, 1914and Fierscyclops Karanovic, 2004, and a new subspecies in Phyllodiaptomus Kiefer, 1936(Alekseev et al, 2013, Papa and Hołyńska, 2013. In the Cladocera, a new endemic genus with a peculiar ecology is described , new species in the genera Leydigiopsis Sars, 1901, Karualona Dumont and Silva-Briano, 2000and Notoalona Rajapaksa and Fernando, 1987Van Damme and Sinev, 2013), and in the large branchiopods, a new Cyzicus Audouin, 1837 (Rogers et al, 2013). The fact that the latter species was discovered coincidentally in a fish farm during a brief N o n c o m m e r c i a l u s e o n l y excursion in the FISA conference, illustrates how useful basic surveys in the region can be for biodiversity assessments and how far we are from a realistic understanding of the true diversity in the region (Rogers et al, 2013).…”