Explain what limiting factors are and how they influence the productivity of an ecosystem.

Limiting factors refer to certain characteristics that affect a population in terms of growth and development. For instance, food scarcity. Without an abundant amount of food, organisms tend to lack such nutrients and the population eventually decreases. Under this idea, if there are too many deer in a forest, there won't be enough resources (food and water). Their population will decrease until the population growth limit is sustained.