E-Dissertationen: Suche
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Homology Assessment in Molecular Phylogenetics: Evaluation, Improvement, and Influence of Data Quality on Tree Reconstruction
(2012-01-12)
Considering the final goal of every phylogenetic analysis, the reconstruction of taxon relationships from underlying data, little attention has been paid to the role of alignment accuracy and its impact on tree reconstruction. ...
Molecular insights to crustacean phylogeny
(2010-03-02)
This thesis aims to resolve internal relationships of the major crustacean groups inferring phylogenies with molecular data. New molecular and neuroanatomical data support the scenario that the Hexapoda might have evolved ...
Limitation of body mass of herbivores: Allometry of food quality and of digestive aspects
(2010-10-13)
That the length of digesta passage rate of large herbivores was influenced by the BM of the animal was discussed controversial in the past and recently. However, recent studies with increasing data sets show tendencies to ...
The impact of artificial lights and anthropogenic noise on Loggerheads (Caretta caretta) and Green Turtles (Chelonia mydas), assessed at index nesting beaches in Turkey and Mexico
(2009-06-02)
Coastal development is considered to be a significant hazard that endangers sea turtles by destroying nesting space. If uncontrolled, it will result in decline and local extinction, or will prevent recovery of these ...
Identification of a putative Litomosoides sigmodontis phosphate permease, Ls-ppe-1, and its role in the interaction between filarial nematodes and their Wolbachia endosymbionts & Establishment of RNA interference in the rodent filaria Litomosoides sigmodontis, a model of human filariasis
(2009-12-09)
Filariasis is a vector-borne disease that affects 200 million individuals in the tropics, a large number of them seriously, where the disease leads to blindness (onchocerciasis) or elephantiasis (lymphatic filariasis). The ...
Analysis of veterinary pharmaceuticals in soil and their impact on microbial populations
(2008)
Veterinary medicines may enter agricultural soils by the use of animal excrements as fertilizers. In this study the impact of veterinary pharmaceuticals sulfadiazine (SDZ) and chlortetracycline (CTC) on soil bacterial ...
Neurobiology and modeling of cuticular hair sensilla of scorpions: Response characteristics and implications for biomimetic design
(2008)
In this thesis, the neurobiology of mechanoreceptive sensilla on the pectines of the scorpion Pandinus cavimanus was examined. The morphology of the pectines, the innervation and morphology of the sensilla as ...
Nutzung von Telemetrie- und Satellitendaten zur Identifizierung wichtiger Habitate wandernder Vogelarten (Ciconia ciconia, Aquila pomarina)
(2007)
Während ihrer Wanderung nutzen Tiere vielfach unterschiedliche Biome, Klimazonen oder Habitate. Damit sind sie jedoch auch verschiedenen Gefahren ausgesetzt, die insbesondere aus der Vernichtung von Habitaten, Verfolgung ...
Sekundäre Sukzession im afromontanen Nebelwald: Dynamik, Mechanismen und Schutz der Biodiversität in zwei Habitaten des Berggorillas (Mgahinga Gorilla- und Bwindi Impenetrable- Nationalpark) und im Echuya Forest, Uganda
(2007)
Die vorliegende Untersuchung fand im Südwesten Ugandas statt, und zwar in zwei 1992 als Nationalpark ausgewiesenen Lebensräumen des Berggorillas und in einem benachbarten Wald. Das Spektrum der natürlichen Vegetation der ...
Charakterisierung von rezeptiven Feldern elektrosensorischer Neurone und deren Antwortverhalten auf Objektwiderstände im elektrosensorischen Seitenlinienlobus des schwach elektrischen Fischs, Gnathonemus petersii (Teleostei)
(2008)
Ziel dieser Arbeit war es, die neuronale Verarbeitung peripherer elektrosensorischer Information auf einer frühen Verarbeitungsstufe des aktiven elektrosensorischen Systems im Gehirn des Mormyriden Gnathonemus petersii zu ......
