Sökning: "seed beetle"
Visar resultat 1 - 5 av 12 avhandlingar innehållade orden seed beetle.
1. Quantitative Trait Evolution in a Changing Environment in a Seed Beetle
Sammanfattning : During the last decades the climate has been changing more rapidly than in the preceding periods. This is for instance characterized by an increase in temperature. Interestingly, such changes in the environment are not necessarily constant over time as they often show high levels of fluctuation. LÄS MER
2. Plant-seed predator interactions – ecological and evolutionary aspects
Sammanfattning : Plant-animal interactions are affected by both abundance and distribution of interacting species and the community context in which they occur. However, the relative importance of these factors is poorly known. LÄS MER
3. Male-female Coevolution in Bruchid seed beetles
Sammanfattning : Male-female coevolution is at the heart of biology. It is responsible for much of the diversity we see in behaviour and morphology, and it is thought to be an important engine of speciation. LÄS MER
4. Condition dependent germline maintenance in seed beetles
Sammanfattning : The aim of the work presented in this thesis is to investigate how costly adaptations promoted by sexual selection affect fertility and offspring quality through changes in germline maintenance. Germline maintenance, comprising mechanisms maintaining DNA-integrity and homeostasis within germ cells, is known to be costly and, therefore, may trade-off with other costly reproductive traits that are under sexual selection. LÄS MER
5. Disturbance regimes in dry sandy grasslands – past, present and future
Sammanfattning : A number of sandy grassland habitats of interest for biodiversity conservation can be found in Europe. One such habitat is the threatened xeric sand calcareous grassland, which is home to a large number of endangered species. LÄS MER
