Faculties of University Bonn: Search
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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 ...
Untersuchungen zur Entwicklung des Landschaftsgartens Aggerbogen zum Standort ökologischer Vielfalt unter der Nutzung als außerschulischer Lernort
(2005)
Der Landschaftsgarten Aggerbogen ist ein ehemals landwirtschaftlich und zur Freizeitgestaltung intensiv genutztes Auengelände, das seit seiner Renaturierung als außerschulischer Lernort im Bereich Naturschutz und Umweltbildung ...
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. ...
Langzeitstudie (1987 – 1997) zur Biologie, Ökologie und Dynamik einer Steinkauzpopulation (Athene noctua SCOP. 1769) im Lebensraum der Mechernicher Voreifel
(2005)
Die Arbeit untersucht die Situation des Steinkauzes (Athene noctua Scop. 1769) in der Mechernicher Voreifel. Hierzu wurden von 1987 bis 1997 innerhalb eines ca. 260 km² großen Gebietes (Kreise Euskirchen und Düren, NRW) ...
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 ...
Candidate gene analysis for loci affecting sperm quality and fertility of boar
(2005)
Fertility is one of the most important economical traits in swine production. Implementation of artificial insemination (AI) in swine production allowed improving selection on the boars for production traits, but at the ...
Molecular genetic analysis of positional candidate genes for mammary gland characteristics in pigs
(2005)
Inverted teat reduce the number of functional mammary complexes in affected sows leading for reduction of piglet productivity and litter growth during the lactation period. This detect occures in commercial pig breeds with ...
Eurasian Blackbirds (Turdus merula) and their gastrointestinal parasites: A role for parasites in life-history decisions?
(2005)
Parasites are increasingly being recognized as potent agents of selection. Gastrointestinal parasites, however, have largely been ignored. The aim of the present thesis was to contribute to the still scarce knowledge about ...