The species composition and abundance of the zooplankton community of seven reservoirs of the Paranapanema River, located between 22 degrees 37'-23 degrees 11'S and 48 degrees 55'-50 degrees 32'W, were analysed over four periods, in the year of 1979. The zooplankton community was composed of 76 species of Rotifera, 26 species of Cladocera and 7 species of Copepoda. For a large part of the perio...

The genus Spirometra belongs to the family Diphyllobothriidae and order Pseudophyllidea, and includes intestinal parasites of cats and dogs. In this study, a plerocercoid labeled as Spirometra mansonoides from the USA was examined for species identification and phylogenetic analysis using 2 complete mitochondrial genes, cytochrome c oxidase I (cox1) and NADH dehydrogenase subunit 3 (nad3). The ...

Understanding the phylogeography of a species requires not only elucidating patterns of genetic structure among populations, but also identifying the possible evolutionary events creating that structure. The use of a single phylogeographic test or analysis, however, usually provides a picture of genetic structure without revealing the possible underlying evolutionary causes. We used current ana...

Title of dissertation: SYMBIONTS ASSOCIATED WITH THE SALIVARY GLANDS OF THE POTATO LEAFHOPPER, EMPOASCA FABAE, AND THEIR FUNCTION WHEN FEEDING ON LEGUMINOUS HOSTS Bridget Diane DeLay, Doctor of Philosophy, 2013 Dissertation directed by: Professor William O. Lamp Department of Entomology Many species of phloem feeding insects are host to symbiotic bacteria, which provide their hosts with nutrien...

Abstract The Carboniferous outcrops from Adarouch (central Morocco) are composed of siliciclastic and carbonate rocks, the latter have yielded abundant fossils. upper part marine succession in Idmarrach Formation its laterally equivalent Tirhela belong to Bashkirian. More recent investigations poorly preserved coral assemblages 2 section here described. assemblage comprises several typical Miss...

Semisulcospira is a freshwater snail genus highly divergent in the ancient Lake Biwa, Japan, with history of ~4 million years. Although shell morphology, karyotype and molecular phylogeny have been well studied, systematic status several non-monophyletic species remains uncertain. In this study, we evaluated taxonomic accounts previously identified as decipiens, S. habei relatives. We examined ...