Microsatellite genotypes of marine bryozoan from shallow seagrass habitats in St. Teresa, Florida, USA in June 2017

We integrate a series of experiments to study how dispersal affects the density and relatedness of neighbors, and how the density and relatedness of neighbors in turn affects fitness. In a marine bryozoan, microsatellite genetic markers identified very few half sibs (and no full sibs) in adults from the natural population, and rarely close enough to directly interact.本研究整合了一系列实验，旨在探究生物扩散如何影响邻体的密度与亲缘关系，以及邻体的密度与亲缘关系反过来如何作用于适合度（fitness）。以海洋苔藓虫（marine bryozoan）为研究对象，借助微卫星遗传标记（microsatellite genetic markers）对自然种群的成年个体进行基因分析后发现：该自然种群的成年个体中几乎不存在半同胞（half sibs），更无全同胞（full sibs），且个体间极少接近到可直接发生相互作用的程度。