E-Dissertationen: Search
Now showing items 1-10 of 51
Ecology, biogeography and responses to habitat degradation of a highly diverse rainforest ant community and taxonomy of Afrotropical Pheidole Westwood (Hymenoptera, Formicidae)
(2012-11-23)
This thesis is about the Kakamega Forest ant fauna in Kenya. With currently 329 ant species the region is the most diverse ever sampled in Africa and, in terms of altitude and biogeographic distribution, probably also one ...
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. ...
Ecology and population status and the impact of trophy hunting of the leopard Panthera pardus (LINNAEUS, 1758) in the Luambe National Park and surrounding Game Management Areas in Zambia
(2012-01-11)
In this study that was carried out in Zambia, population size and density, diet, activity pattern and habitat use of leopards (Panthera pardus) were studied in Luambe National Park (LNP) and a bordering Game Management ...
Spitting behaviour and fang morphology of spitting cobras
(2011-11-18)
To investigate the influence of different parameters on the venom spitting, behavioural experiments were conducted. In these experiments different targets were presented to the cobras. The results showed that contrary to ...
Ecology and population status of the Serval Leptailurus serval (SCHREBER, 1776) in Zambia
(2011-07-15)
Little is known about the Serval’s ecology, its needs and population status. This thesis is providing a new and detailed groundwork on this elusive felid species. The study was conducted between 2006 and 2008 in Zambia, ......
The “Atelocerata” – A vanishing hypothesis?: Molecular phylogeny of arthropods with focus on primary wingless hexapods
(2012-09-05)
Arthropods encompass more than three quarters of all described living species. Among arthropods, hexapods are the most abundant group and show an enormous diversity. To understand evolutionary processes of and within ...
Phylogeography of the Komodo monitor Varanus komodoensis (Reptilia: Varanidae) inferred from mitochondrial DNA Control Region I and the implications for in situ management plans
(2011-03-16)
The Komodo monitor (Varanus komodoensis) is the largest living lizard in the world, which was discovered by scientists only about one hundred years ago. The wild populations of the Komodo monitor are restricted ...
Analysis of the Rubbing Behaviour of Psammophiids: A Methodological Approach
(2011-01-19)
Several snakes belonging to the eight genera of the family Psammophiidae are the sole known snakes to smear the secretion of their nasal gland on their own belly and flanks by little rapid head movements. The main objective ...
Kommunikation mittels selbst generierter elektrischer Signale innerhalb sozialer Gruppen des schwach elektrischen Fisches Mormyrus rume
(2012-12-04)
In dieser Arbeit wurden verschiedene elektrische Kommunikationsmuster im Zusammenhang mit wechselndem Verhalten innerhalb einer frei schwimmenden homogenen Gruppe von Mormyriden analysiert. Dazu wurden die elektrischen ...
Molekulare und zelluläre Funktionen des Guaninnukleotidaustauschfaktors Cytohesin-4 im Immunsystem
(2012-11-06)
Cytohesine sind eine Familie von Guanin-Nukleotid-Austauschfaktoren (GEFs) für ARF-GTPasen, die in Säugetieren vier Mitglieder umfasst. Sie sind für grundlegende zelluläre Funktionen wie Zelladhäsion und Integrin-Aktivierung, ...