Distributional patterns of the South American species of Boeckella (Crustacea: Copepoda: Centropagidae): A track analysis

Abstract

Midsouthern Andes: B. gibbosa and B. diamantina

and Neotropical (mainly in the Neotropical region, but reaching also Patagonia and the Puna): B. meteoris and B. bergi. Two nodes have been determined: one in southern Chile and Argentina, where the Subantarctic, Patagonian, and Neotropical tracks intersect, and the other in the central Andes. where the ParamoPunan and Neotropical tracks intersect.

South American species of the freeshwater copepod genus Boeckella are distributed in the Andean region, which corresponds to southwestern South America below 30 degrees south latitude, also extending along the Andean highlands north of this latitude, and comprises the Subantarctic, Central Chilean. Patagonian, and ParamoPuna subregions. Based on a track analysis, five generalized tracks were found: Subantarctic (involving some Subantarctic islands, the Falklands, Tierra del Fuego, and the southern portion of continental Chile and Argentina): B. brevicaudata, B. poppei. B. vallentini, and and B. michaelseni: Patagonian (in the southern Patagonia plateau): B. brasiliensis. B. silvestrii vestrii. and B. longicauda

ParamoPunan (in the central and northern Andes, freom northwestern Argentina to western Colombia): B. calcaris, B. palustris, and B. occidentalis