Populations Populations are made up of living organisms with the same type of animals that live together in the same area. An example would be a lion pack also known as a pride. Lions hunt, eat, and live together at all times. When they hunt they team up together around their prey and attack at the same time. The picture below shoes how the two female lions attacked some kind of animal together to feed their babies. The type of scientist that studies animals populations or living style is called an ecologist. Ecologists study how organisms move from one place to another. They also study how animals interact with one another in their same environment. An example could be, an ecologist was studying how bison move from one place to another. They run together as a pack. Whenever one is attacked all help (or run). The picture below shows how an ecologist is experimenting how the pig reacts to humans, or other life. Community Ecologists also ask questions. One may be, How does blank effect ___ effect ___? ( Research Question )Ecologists who study like that are studying community. Community is organisms living in the same ecosystem. The marine community is made of populations of different types of animals like sharks, whales, sea turtles, starfish, etc. In the picture below it shows the shark eating a seal, which may effect the population of the seals, since sharks are using them as food and prey. Here are some examples of an organism, population, community and ecosystem. Organism Population Community Ecosystem Limiting Factors The limited factors in nature are, food, water, living space, mates, nesting sites, and many other resources are very limited. A limted factor is something that doesn't allow a number amount of animals or organisms in population. Limiting factors include living and non-living things in an ecosystem. Limiting factors can effect more than one population in a community. Like lack of rain can effect plants or animals that need mud for their nests. Water LivingSpace Nesting Sites Carrying Capacity The largest number of animals of one specie that an environment (ecosystem) can support over a long period of time. As the enviroment gorws with population (carrying capacity) animlas wont have enough resources. The animals could die or be forced to move somewhere else. Animals Being Forced to Human Area Questions 1.What is Populations? 2. What is Community? 3.Why do we need to help animals enviroment with carrying capactiy?