Dokumente Fakultät für Biologie und Psychologie (inkl. GAUSS) nach Gutachter "Schaefer, Matthias Prof. Dr."
Anzeige 1-20 von 24
-
Acetabularia-Rhodopsin, eine lichtgetriebene Protonenpumpe aus einem autotrophen Eukaryoten
(2006-10-23)A rhodopsin from Acetabularia acetabulum (AR) is characterized by molecular genetic and electophysiological means. On the basis of a published, incomplete sequence, the whole transcript ... -
Adaption an Nestprädation bei der Mönchsgrasmücke
(2002-07-02)Nest predation is one of the main selective forces in life history evolution of songbirds. On the one hand natural selection can favour traits which lower predation, e.g. by cryptic behaviour ... -
Ameisen als Schlüsseltiergruppe in einem Grasland
(2004-10-28)Ants as eusocial predators living in the soil and ground litter are able to directly or indirectly affect soil organisms, herbivores and plants via trophic interactions ("top-down") and ... -
Butterfly communities in the natural landscape of West Khentej, northern Mongolia: diversity and conservation value
(2006-01-16)This thesis provides an insight into the natural history of butterfly species which are found in the West Khentej mountains of northern Mongolia. The study area is located in the transition ... -
Conservation Value of Logging Concession Areas in the Tropical Rainforest of the Korup Region, Southwest Cameroon
(2008-02-11)Tropical rainforests are home for renewable natural resources for living and non living things. The dynamic and interdependent nature of tropical rainforest components make it a fragile ... -
Deskription der Schwermetallgehalte in Knochen, Organen und Haaren von Fledermäusen (Chiroptera) im Zeitraum 1987 bis 1999
(2001-02-22)In the past 20 years, bat carcasses have been collected and conserved by deep-freezing. This was initiated by the environmental conservation agency in Lower Saxony (Federal Republic of Germany), now called Niedersächsisches ... -
Diversity and trophic structure of the soil fauna and its influence on litter decomposition in deciduous forests with increasing tree species diversity
(2009-09-29)The relationship between species diversity and ecosystem function is an important topic of modern ecological research. Plant diversity has often been found to affect structural and ... -
Factors controlling the lower elevational limits in tropical montane plants in the Andes and their implications under the current climatic change
(2006-01-31)To date all experimental approaches on the mechanisms that determine the lower elevational limits of plants have been carried out in temperate regions. Despite of the concrete and relevant ... -
Long-term development of different grassland insect communities in Central Europe since the 1950s
(2011-09-13)Central European landscape considerably changed during the second half of the 20th century. These changes are probably mainly caused by modern agriculture. Today, Central Europe consists ... -
Mammal conservation status and prospects for community-based wildlife management in coastal Guinea-Bissau, West Africa
(2005-07-12)In Guinea-Bissau, wildlife species in general and mammals in particular are suffering increasing pressure, mainly from overhunting and habitat reduction and fragmentation. The lack of ... -
Monitoring der Resistenzentwicklung des Maiszünsler (Ostrinia nubilalis), Hübner) gegenüber Bt-Mais
(2004-04-23)Goal of this thesis was to collect data about baseline susceptibility and resistance allele frequency of the Euopean corn borer (Ostrinia nubilalis, Lepidoptera: Pyralidae) in Germany and ... -
Nutrient dynamics and their control in land use systems of forest margins in Central Sulawesi, Indonesia
(2003-12-10)Changes of soil fertility after rainforest conversion and nutrient sustainability in major land use systems were studied in rainforest margins in uplands of Central Sulwesi, Indonesia. The ... -
Die ökologische Bedeutung von Hecken für Vögel
(2002-04-17)From historical and esthetical point of view, hedges are important features in our cultured landscape. Many species of native animals and plants maintain largest parts of their population ... -
Räumlich-zeitliche Auswirkungen der Landnuzung auf die Diversität von Bienen und Wespen.
(2006-03-17)Anthropogenic land use changes may have major consequences for global biodiversity and the functioning and stability of ecosystem processes. However, species diversity is determined by a ... -
Services and disservices driven by ant communities in tropical agroforests
(2013-05-30)Agricultural productivity and human well-being are built upon ecosystem services and disservices. Ants in tropical agroecosystems drive a complex network of direct and indirect interactions between crops and their mutualists ... -
Strategies of Sexual Reproduction in Aphids
(2002-11-08)Second copulas of Uroleucon cirsii (L.) are shorter on average than first copulas both for individual males and females. This suggests that male aphids are limited by sperm, on the one hand, ... -
Structure and diversity of cloud forest bird communities in Alta Verapaz, Guatemala, and implications for conservation.
(2003-12-10)In a 102 ha study plot in the Sierra Yalijux, Alta Verapaz, Guatemala (90° 03 W, 15° 22 N, 1980 2550 m) the bird community was observed with standardized mark-recapture and transect ... -
The butterfly community of a managed West African rainforest: patterns of habitat specificity, diversity, stratification and movement.
(2002-09-30)Fruit trapping, standardised transect walks and point distance sampling were used to study the butterfly fauna of a managed, over-logged rainforest in south-eastern Côte d"Ivoire, West ... -
The impact of ants on the aboveground and belowground ecological network - field studies in a grassland and experiments with microcosms
(2011-03-15)In this work, two areas of ants` functioning in ecosystem were studied. On the one hand, I investigated how ants affect the aboveground system by acting as mutualistic partners and predators ... -
The Impact of Mowing and Flooding on the Diversity of Arthropods in Floodplain Grassland Habitats of the Lower Oder Valley National Park, Germany
(2005-05-25)It was the aim of this study to analyse the impact of land use and flooding on the diversity of arthropods living in temporarily flooded grassland habitats.The Lower Oder Valley National Park was ...