E-Dissertationen: Search
Now showing items 11-19 of 19
Die Auswirkungen waldbaulicher Maßnahmen auf die Laufkäfer (Col., Carabidae) und die Wolfspinnen (Aran., Lycosidae) im Fichten- und Buchenwald (Süderbergland)
(2004)
In Zusammenarbeit mit der Hatzfeldt-Wildenburgischen Forstverwaltung wurden in den Jahren 2000 und 2001 die Carabiden und Lycosiden verschiedener Waldbestände in Rheinland-Pfalz untersucht. Anfang der 90er Jahre stellte ...
Nuptial feeding in the scorpionfly Panorpa vulgaris: ultimate and proximate causes
(2005)
In my thesis I was concerned with ultimate as well as with proximate aspects of nuptial feeding in the scorpionfly Panorpa vulgaris (Mecoptera: Panorpidae). Chapter I begins with the attempt to verify the ultimate function ...
Sperm competition and female remating rate in the scorpionfly Panorpa germanica, L. (Mecoptera, Panorpidae)
(2005)
Sperm competition can be a powerful selective force in the evolution of reproductive strategies and mating systems. In the last decades many insect species have been studied in terms of sperm competition (for reviews see ...
Effects of fragmentation and degradation of an afrotropical rain forest on the diversity structure of leaf beetle communities (Coleoptera, Chrysomelidae)
(2005)
East African forests are particularly diverse and endangered but are still little-known ecosystems. With an increase of the human population in East Africa throughout the last decades, the pressure on biodiversity largely ...
Entwicklung eines Leitbildes und eines Entwicklungsplanes für Wiesentäler im Wildenburger Land mit Tagfaltern als Bioindikatoren
(2005)
Wald-Wiesentäler bilden ein charakteristisches Kulturlandschaftselement der Mittelgebirge. Das Wildenburger Land (Rheinland-Pfalz, Landkreis Altenkirchen) stellt einen typischen Ausschnitt aus diesem Mittelgebirgsraum dar. ...
Systematics and Biogeography of the African Scaly-tailed Squirrels (Mammalia: Rodentia: Anomaluridae)
(2005)
The aim of the present investigation was a better understanding of the systematics and biogeography of the African scaly-tailed squirrels. Therefore 1581 anomalurid specimens from 22 collections were examined and data from ...
Forest fragmentation and plant-pollinator interactions in Western Kenya
(2006)
Rain forest fragmentation can affect plant-pollinator interactions and the reproductive success of plant species. Understanding these consequences is a crucial component of conserving vulnerable ecosystems.
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Effects of Habitat Degradation and Fragmentation on the Genetic Population Structure of Phytophagous Beetles in an African Rainforest
(2005)
In the presented study the genetic population structure of the phytophagous beetles Amphitmetus transversus (Coleoptera, Curculionidae) and Monolepta vincta (Coleoptera, Chrysomelidae) was analysed in a highly disturbed ...
The Uncinate Processes in Birds and their Implications for the Breathing Mechanics of Maniraptoran Dinosaurs
(2004)
The breathing mechanics of dinosaurs and the connected implications for lung structure (Perry 1983) and metabolism is currently a focus of intense and sometimes controversial discussion (Perry in press). Rubens et al (1997) ...