Browsing Fakultät für Biologie und Psychologie (inkl. GAUSS) by Referee "Leuschner, Christoph Prof. Dr."
Now showing items 21-40 of 53
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Habitat ecology and long-term development of the macrophyte vegetation of north-west German streams and rivers since the 1950s
(2013-11-08)This PhD thesis deals with the habitat characterization and the long-term development over 60 years of the macrophyte vegetation of north-west German running waters in order to contribute to the knowledge about the ecology ... -
Hydraulic traits and their relevance for water use strategies in five broad-leaved tree species of a temperate mixed forest
(2013-11-14)Without anthropogenic intervention, Central Europe would be covered by about 65% by beech-dominated broad-leaved forests. However, large forest areas have been replaced by coniferous monocultures since the early 19th century ... -
Impoverishment of the arable flora of Central Germany during the past 50 years: a multiple-scale analysis
(2013-05-30)Since the first creation of arable land a crop-adapted flora and fauna has developed as a byproduct of low-intensity agriculture. Intensification and economic optimization of agricultural production during the last few ... -
Influence of forest age dynamics on ground vegetation and epiphytic diversity in montane spruce forests
(2014-01-21)Central European forests haven been strongly shaped by human activities since the Neolithic. Most forests lack a near-natural stand structure and large, over-mature trees as well as standing or lying deadwood. Forest ... -
Landscape change and impoverishment in North German grasslands since the 1950s
(2014-09-05)Landscape and agricultural management has changed in Central Europe dramatically since the large-scale intensification processes (e.g. meliorations, synthetic fertilizer and herbicide use) started in the 1950/60s. Today, ... -
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 ... -
Photosynthetic capacity and nitrogen nutrition of Ecuadorian montane forest trees
(2014-04-11)With increasing elevation, the growth conditions of trees in tropical mountains become generally more adverse in terms of decreasing nutrient availabilities, decreasing temperatures and decreasing atmospheric concentration ... -
Preferences for forest-based biodiversity and ecosystem insurance services in the Hainich National Park region (Thuringia, Germany)
(2009-08-20)It is a challenge to estimate economic benefits of biodiversity, ecosystems and ecosystem services to society. This is particularly the case if biodiversity and functioning ecosystems ... -
Productivity and nutrient relations of trees in deciduous forests differing in tree species diversity
(2010-02-26)Effects of biodiversity on ecosystem functioning in forests ecosystems are of increasing interest. There is a vital debate about the influence of species numbers and plant functional traits ... -
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 ... -
Relationships between soil chemical properties and forest structure, productivity and floristic diversity along an altitudinal transect of moist tropical forest in Amazonia, Ecuador.
(2010-05-28)In a transect from mature upper lowland to montane forests in NE Ecuador, in the area of the Sumaco Biosphere Reserve (SBR), we tested the hypotheses that (1) the availability of P is low ... -
Root system structure and functions across coastal saltmarsh flooding gradients
(2018-12-04)Salt marshes are ecosystems with extreme environmental conditions such as regular tidal inundation, mechanical disturbances, salinity, waterlogged and anoxic soils, and potentially toxic compounds in the soil. This adverse ... -
Shade trees in cacao agroforestry systems: influence on roots and net primary production
(2016-09-19)Huge areas of natural forests are rapidly cleared worldwide to make way for agricultural cultivation systems. This has a substantial impact on the functioning of ecosystems, as well as on carbon cycling and hence effects ... -
Spatial vegetation ecology: Understanding the ecosystem processes that influence plant diversity patterns at different spatial scales
(2019-09-10)The present thesis is based on a set of 16 peer-reviewed publications originating from ecological research work aimed at understanding how ecosystem processes may influence plant diversity patterns at different spatial ... -
Struktur und Dynamik des Feinwurzelsystems von tropischen Bergwäldern in Abhängigkeit von der Meereshöhe in Südecuador
(2006-08-08)In a tropical montane rainforest in the South of Ecuador the effect of increasing altitude on structure and dynamics of fine root system was assessed. Fine root bio- and necromass, ... -
Students’ Interests in Agriculture: The Impact of School Farms Regarding Fifth and Sixth Graders
(2015-02-24)The present way of intensive agricultural production is closely connected to central issues of sustainable development such as the loss of biodiversity and climate change. The corresponding importance of agriculture stands ... -
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 effects of climate change on fine root dynamics in a Norway spruce forest
(2008-10-06)Because of methodological restrictions, exact quantifications of the carbon sink strength of fine root systems are not available for mature forests. However, for assessing the effects ... -
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 phoshorus and nitrogen nutrition of European beech under a future warmer and drier climate: climate chamber experiments and transect studies
(2023-03-13)Productivity of temperate forests may increasingly be limited by phosphorus (P) shortage, as indicated by decreasing P concentrations and increasing nitrogen (N):P ratios in leaves and fine roots and reports on recent ...