%0 Journal Article %J Hydrobiologia %D 2020 %T Exploring community assembly among Javanese and Balinese freshwater shrimps (Atyidae, Palaemonidae) through DNA barcodes %A Hernawati, Rena %A Nurhaman, Ujang %A Busson, Frederic %A Suryobroto, Bambang %A Hanner, Robert %A Philippe Keith %A Wowor, Daisy %A Hubert, Nicolas %K Caridina %K Dispersa %K Lottery model %K Macrobrachium %K Phylogenetic community structure %K Species delimitation %X Species proliferate through evolutionary mechanisms but coexist through ecological dynamics. As such, it might be expected that mechanisms of speciation and species maintenance jointly influence the settlement of ecological communities, a process called community assembly. Disentangling the relative contribution of evolutionary and ecological dynamics might be a difficult task, particularly so for the tropical biotas due to their extreme diversity and large knowledge gaps. Here, we explore genetic diversity and distribution of 23 freshwater shrimp species of the genera Caridina and Macrobrachium in Sundaland to examine patterns of species co-occurrence based on 1583 observations across 19 sites in Java and Bali islands. DNA-based species delimitation methods applied to 204 cytochrome oxidase I sequences detected 30 operational taxonomic units and a few cases of deep intraspecific divergence. Species co-occurrence and phylogenetic community structure show no departure from expectations under a random distribution of species in landscapes and support a lottery model of community assembly. Species age estimates expand beyond the geological settlement of Sundaland, suggesting that species proliferation and community assembly are driven by mechanisms acting at distinct spatial and temporal scales. %B Hydrobiologia %V 847 %P 647 - 663 %8 Jan-01-2020 %G eng %U http://link.springer.com/10.1007/s10750-019-04127-7 %N 2 %! Hydrobiologia %R 10.1007/s10750-019-04127-7 %0 Journal Article %J Zootaxa %D 2019 %T Resurrection of Caridina natalensis De Man, 1908 (Crustacea: Decapoda: Atyidae) in the South Western Indian Ocean %A de Mazancourt, Valentin %A Mlambo, MC %A Castelin, Magalie %A Renneville, C %A Marquet, GĂ©rard %A Philippe Keith %K 16S %K Caridina %K Comoros %K Integrative taxonomy %K Madagascar %K Mayotte %K morphology %K Seychelles %K South Africa %X

Numerous specimens of a freshwater shrimp with small eggs belonging to the Caridina nilotica complex collected in the South Western Indian Ocean were studied and compared with recent and old collection specimens genetically (16S mito-chondrial analysis for recent and type specimens) and morphologically. The results revealed that, in the Indian Ocean, what has been identified by several authors under various species names of the complex C. nilotica, was in fact C. natal-ensis De Man, 1908. This valid species is re-described and compared with closely related species, often confused with it in this area: C. brachydactyla De Man, 1908, C. brevidactyla Roux, 1920, C. gracilipes De Man, 1892 and C. longirostris H. Milne Edwards, 1837.

%B Zootaxa %V 4543 %P 375-387 %G eng %N 3