Persistence of Branchinecta Paludosa (Anostraca) in Southern Wyoming, With Notes on Zoogeography

In this checklist, we number the named anostracan fauna of the world at 258 species and seven subspecies organized in 21 genera. The list contains all species described through 31 December 1993, and those new species names made available in previous pages of this volume. The most species rich genus is Streptocephalus with 58 described species level taxa. Chirocephalus with 43, Branchinecta 35, and Branchinella 33 occupy the next three places. With the exception of Branchipodopsis and Eubranchipus each having 16 species, all the other genera include less than 10 species each. The need for zoogeographic study of these animals is demonstrated by the fact that almost 25% of the named taxa are known only from their type localities.

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Dancing around the pole: holarctic phylogeography of the Arctic fairy shrimp Branchinecta paludosa (Anostraca, Branchiopoda)

Lindholm

d’Auriac

Thaulow

et al. 2016

Hydrobiologia

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The distributional patterns of Arctic species are commonly affected by the recurring Pleistocene glaciations, which contributed to transient or permanent genetic isolation. Here we explore the phylogeography of the climate-sensitive Arctic fairy shrimp Branchinecta paludosa, which has a circumpolar range of distribution, with certain southern alpine outreaches. We sequenced the mitochondrial cytochrome oxidase I subunit from samples collected at ten Nearctic and nine Palaearctic sites, including southern alpine populations. A handful of ambiguous bases in certain sequences strongly suggested heteroplasmy, possibly being reported for the first time in anostracans. Evolutionary analysis of the sequence variations showed a temporal divergence coinciding with the flooding of the Beringia land bridge. Sequence alignment with outgroup taxa for phylogenetic analysis showed three distinct major clades, reflecting geographical isolation. The most divergent clade, from isolated alpine ponds in the Rocky Mountains, probably represents a different and undescribed species. Two other major clades corresponded to the geographical areas of Nearctic and Palaearctic. Finally, the southern Palaearctic outstretch showed genetic separation, most likely representing a geographical and climatic isolated relict population.

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Persistence of Branchinecta Paludosa (Anostraca) in Southern Wyoming, With Notes on Zoogeography

Cited by 17 publications

References 11 publications

Checklist of the Anostraca

Checklist of the Anostraca

Checklist of the Anostraca

Dancing around the pole: holarctic phylogeography of the Arctic fairy shrimp Branchinecta paludosa (Anostraca, Branchiopoda)

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