At the population and community levels, ecologists explore, respectively, how a population of organisms changes over time and the ways in which that population interacts with other species in the comm...At the population and community levels, ecologists explore, respectively, how a population of organisms changes over time and the ways in which that population interacts with other species in the community. Ecologists studying an ecosystem examine the living species (the biotic components) of the ecosystem as well as the nonliving portions (the abiotic components), such as air, water, and soil, of the environment.
Ecologists seek to understand how the distribution and abundance of organisms on Earth is shaped by both biotic and abiotic facts. These relationships are studied at many levels including organismal, ...Ecologists seek to understand how the distribution and abundance of organisms on Earth is shaped by both biotic and abiotic facts. These relationships are studied at many levels including organismal, population, community, ecosystem, and biosphere.