Woodlice are widely studied in the contexts of evolutionary biology, behavioural ecology and nutrient cycling. Chemostats are also used as in ecology and evolutionary biology. Such uses have become central to understanding biodiversity, evolution, ecology, and genomes. There is a divergence of ideas between conservation science and political ecology. Species population is a science falling under the purview of population ecology and biogeography. Cornell has facilities devoted to conservation and ecology. Humboldt combined ecology, geography and even social sciences. Founder populations are essential to the study of island biogeography and island ecology. Episodes often focused on issues of conservation, ecology, and greed. Cell-surface polysaccharides play diverse roles in bacterial ecology and physiology. Seed dispersal has many consequences for the ecology and evolution of plants. Ongoing research on behavior, ecology, and population dynamics is also underway. Still others investigate the relationships between ecology and geomorphology. Rock paper scissors is the subject of continued research in bacterial ecology and evolution. These behaviors form parts of a complex evolutionary ecology.