Browsing Fakultät für Biologie und Psychologie (inkl. GAUSS) by Referee "Ehlers, Ulrich Prof. Dr."
Now showing items 1-13 of 13
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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 ... -
Philopatrie versus Emigration
(2004-11-29)During a two and a half year study, the mechanisms leading to dispersal and expulsions of non-reproductive offspring within large semi-free living families of common marmosets (Callithrix ... -
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 ... -
Räumliche und zeitliche Untersuchungen zum Teilungsapparat der äußeren Mitochondrienmembran mit hochauflösender Fluoreszenzmikroskopie
(2004-03-26)In the baker´s yeast Saccharomyces cerevisiae the mitochondrial compartment forms an extended tubular network. The maintenance of this reticulate structure has been proposed to require a ... -
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 ... -
Wasserhaushalt und Wassernutzungseffizienz von vier perennierenden Pflanzenarten im Vorland einer zentralasiatischen Flussoase
(2003-11-18)At the southern fringe of the Taklamakan desert, the annual precipitation is only 33 mm, and the potential evaporation 2600 mm. The oases are supplied with water through rivers, which run from the Kunlun Mountains and carry ... -
Anteriore Musterbildung im Wirbeltierembryo - Die Induktion von Vorderhirn und Herz
(2003-02-25)Germ layers and body axes of a vertebrate embryo are established under the influence of a regulatory center, the embryonic organizer. Secreted factors emanating from the organizer and from ... -
Auswirkungen von Trockenheit und Entlaubung auf den Wasserhaushalt von Stiel- und Traubeneiche
(2002-12-09)As indicated indirectly by tree ring analysis and climate records, defoliation in at least two consecutive years together with a dry summer is considered to be the most important combination ... -
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, ... -
Funktionsanalyse der Entwicklungskontrollgene Irx2 und Mash1 in der Maus.
(2002-10-01)The development of organism is controlled by transcription factors which can modulate cascades of genes in their activity . The search for developmental relevant genes identified the new ... -
Elektroporation: Eine Methode zur Transfektion von Wirbeltierembryonen
(2002-05-22)The change of the developmental potential and therefore fate of cells during vertebrate embryogenesis can be achieved by overexpression of morphoregulatoric acting proteins. Besides a variety ... -
A Phytosociological Study of Glacier National Park, Montana, U.S.A., with Notes on the Syntaxonomy of Alpine Vegetation in Western North America
(2001-09-14)The alpine and parts of the subalpine vegetation of Glacier National Park, Montana, USA, are investigated using the European phytosociological method of Braun-Blanquet.Based on ... -
Phylogenetische Entwicklung asiatischer Wasserbüffel anhand Polymorphismen in der mitochondrialen D-loop Region
(2001-05-11)Die Phylogenese der Wasserbüffel (Bubalus bubalis) wird noch immer kontrovers diskutiert. In der Vergangenheit variierte die Divergenzzeit zwischen Fluß- und Sumpfbüffeln, je nach Analysemethode, ...