Complex sentence: Mothers lay their eggs in locations with strong pheromonal traces from these organisms because from the point of oviposition to the time the eggs hatch and beyond, "L. niger" and "L. alienus" protect the eggs from predation and parasitism by other organisms.
Split into simpler sentences: Mothers lay their eggs in locations with strong pheromonal traces from these organisms. From the time of oviposition to hatching, "L. niger" and "L. alienus" protect the eggs from predation and parasitism by other organisms.