Search
Filter by
Type
Tags
Dossiers
Themes
Departments
Active filters
12 search results
Search results
-
Seasonal timing
Species can adapt over the course of time. As the lives of species are altered by climate change, a different seasonal timing could make them adapt to an early spring, for example. How does this work, and what are the limits to such adaptations? -
How do nutrients and temperature affect cyanobacterial bloom toxicity?
Toxic cyanobacterial blooms threaten freshwater quality, made worse by climate change and eutrophication. The toxicity of these blooms depends not only on cyanobacteria quantity but also on the presence potentially toxin-producing species and genotypes, and their varied toxin production. -
Climate change impacts on harmful algal blooms
Harmful cyanobacterial blooms produce toxins that are a major threat to water quality and human health. Blooms increase with eutrophication and are expected to be amplified by climate change. Yet, we lack a mechanistic understanding on the toxicity of blooms, and their response to the complex interplay of multiple global change factors. Bloom toxicity is determined by a combination of mechanisms acting at different ecological scales, ranging from cyanobacterial biomass accumulation in the ecosystem, to the dominance of toxic species in the community, contribution of toxic genotypes in the population, and the amounts of toxins in cells. -
PhD Thesis defence Kees Schreven: range expansion in Arctic-breeding geese
On Friday 8 September 2023, our colleague Kees Schreven will defend his PhD thesis "Geese colonising New Land: causes and mechanisms of range expansion in an Arctic-breeding migrant". -
PhD thesis defence Natalie van Dis: rapid adaptation to climate change in winter moth
On 6 June 2023, Natalie van Dis will defend her PhD thesis titled "Evolution in action: drivers of rapid adaptation to climate change in the winter moth". The ceremony will start at 12:45 h., in the academy building of the University of Groningen.
-
PhD defence Melanie Lindner: Bird reproduction in a warming world
Melanie Lindner will defend her PhD thesis titled "Avian seasonal reproduction in times of global warming: Insights from evolution, ecology and (epi-)genomics" -
Sperm biology and evolution (thesis/internship projects)
Sperm are critical to successful fertilisation in sexually reproducing animals. The function of sperm – to find and fertilise ova – is universal throughout the animal kingdom, yet the sperm cell is the most morphologically diverse cell type known. -
Seasonal timing of growth and reproduction: ultimate functions and proximate mechanisms
For many species, there is only a short period in the annual cycle in which conditions are suitable for reproduction or growth. -
Climate change could make cyanobacteria more toxic
Climate change could result in more toxic cyanobacteria. But what determines their toxicity? Dedmer van de Waal has won a major European grant to find out. -
It takes more than two to tango: Microbial communities influence sex and reproduction in animals
The reproductive tracts of males and females contain whole communities of micro-organisms. These microbes can have considerable impact on (animal) fertility and reproduction, as shown by Melissah Rowe from the NIOO-KNAW.