Which method of collecting data would provide the most accurate information about how an ecosystem is being affected by human development? the people in the neighborhood record the number of birds they see in the area both before and after the constructions of a new building. deer in the area are identified before construction so that scientists can see where they go after the building is finished. more trees are planted in the area around the construction site to allow the animals a new place to live. the population size is recorded for each species present in the construction area before and after the building is completed.