@article {Blaxter:2005ss,
	title = {Defining operational taxonomic units using DNA barcode data.},
	journal = {Philos Trans R Soc Lond B Biol Sci},
	volume = {360},
	number = {1462},
	year = {2005},
	pages = {1935{\textendash}1943},
	address = {Institute of Evolutionary Biology, School of Biological Sciences, University of Edinburgh, Ashworth Laboratories, King{\textquoteright}s Buildings, Edinburgh EH9 3JT, UK. mark.baxter@ed.ac.uk},
	abstract = {The scale of diversity of life on this planet is a significant challenge for any scientific programme hoping to produce a complete catalogue, whatever means is used. For DNA barcoding studies, this difficulty is compounded by the realization that any chosen barcode sequence is not the gene {\textquoteright}for{\textquoteright} speciation and that taxa have evolutionary histories. How are we to disentangle the confounding effects of reticulate population genetic processes? Using the DNA barcode data from meiofaunal surveys, here we discuss the benefits of treating the taxa defined by barcodes without reference to their correspondence to {\textquoteright}species{\textquoteright}, and suggest that using this non-idealist approach facilitates access to taxon groups that are not accessible to other methods of enumeration and classification. Major issues remain, in particular the methodologies for taxon discrimination in DNA barcode data.},
	issn = {0962-8436 (Print); 0962-8436 (Linking)},
	doi = {10.1098/rstb.2005.1725},
	author = {Blaxter, Mark and Mann, Jenna and Chapman, Tom and Thomas, Fran and Whitton, Claire and Floyd, Robin and Abebe, Eyualem}
}
@article {Abebe:2008xy,
	title = {Global diversity of nematodes (Nematoda) in freshwater},
	journal = {Hydrobiologia},
	volume = {595},
	year = {2008},
	pages = {67-78},
	publisher = {SPRINGER},
	address = {VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS},
	abstract = {Despite free-living nematodes being present in all types of limnetic habitats including unfavorable conditions that exclude many other meiobenthic invertebrates, they received less attention than marine and terrestrial forms. Two-fifths of the nematode families, one-fifth of the nearly 1800 genera and only 7\% of the about 27,000 nominal species are recorded from freshwater habitats. The Dorylaimia are the most successful in freshwater habitats with nearly two-thirds of all known freshwater nematodes belonging to this subclass. Members of the subclass Enoplia are principally marine though include some exclusively freshwater taxa with extreme endemism. The subclass Chromadoria includes half of the freshwater nematode families and members of the Monhysterida and Plectida are among the most widely reported freshwater nematodes. Studies on freshwater nematodes show extreme regional bias; those from the southern hemisphere are extremely underrepresented, especially compared to European freshwater bodies. The majority of records are from a single biogeographic region. Discussion on nematode endemism is largely premature since apart from Lake Baikal, the nematofauna of ancient lakes as centers of speciation is limited and recent discoveries show high nematode abundance and diversity in cryptic freshwater bodies, underground calcrete formations and stromatolite pools potentially with a high number of new taxa.},
	keywords = {Biodiversity, distribution, free-living nematodes, freshwater nematodes, Global estimate, nematode biogeography},
	doi = {DOI 10.1007/s10750-007-9005-5},
	author = {Abebe, Eyualem and Decraemer, Wilfrida and De Ley, Paul}
}
