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- https://bio.libretexts.org/Courses/Thompson_Rivers_University/Principles_of_Biology_II_OL_ed/04%3A_Ecology/4.02%3A_Population_Ecology/4.2.02%3A_What_is_Population_EcologyEcology is often defined as the study of the distribution and abundance of organisms. Population ecologists study what determines the occurrence and abundance of species in space and time: their geog...Ecology is often defined as the study of the distribution and abundance of organisms. Population ecologists study what determines the occurrence and abundance of species in space and time: their geographic ranges, population sizes and densities, what factors result in them being so rare or common, and why these characteristics change over time.
- https://bio.libretexts.org/Courses/Gettysburg_College/01%3A_Ecology_for_All/15%3A_Competition/15.01%3A_Introduction_and_Types_of_CompetitionCompetition lowers the fitness of both organisms involved, since the presence of one of the organisms always reduces the amount of the resource available to the other (Lang & Benbow 2013). In an appar...Competition lowers the fitness of both organisms involved, since the presence of one of the organisms always reduces the amount of the resource available to the other (Lang & Benbow 2013). In an apparent competition model, this relationship is found to be mediated through predator C; a population explosion of species A increases the abundance of the predator species C due to a greater total food source.
- https://bio.libretexts.org/Workbench/General_Ecology_Ecology/Chapter_15%3A_Competition/15.1%3A_Introduction_and_Types_of_CompetitionCompetition lowers the fitness of both organisms involved since the presence of one of the organisms always reduces the amount of the resources available to the other. Competition among members of the...Competition lowers the fitness of both organisms involved since the presence of one of the organisms always reduces the amount of the resources available to the other. Competition among members of the same species is known as intraspecific competition, while competition between individuals of different species is known as interspecific competition.
- https://bio.libretexts.org/Courses/Gettysburg_College/01%3A_Ecology_for_All/09%3A_The_Ecology_of_Populations/9.01%3A_What_is_population_ecologyOften, however, we do not have good estimates of the size of a population itself, but factors that should be correlated with the population size, such as the number of animals harvested by hunters or ...Often, however, we do not have good estimates of the size of a population itself, but factors that should be correlated with the population size, such as the number of animals harvested by hunters or trapped by ecologists or the density of dung found during a survey.
- https://bio.libretexts.org/Workbench/General_Ecology_Ecology/4.2%3A_Population_Ecology/4.2.02%3A_What_is_Population_EcologyEcology is often defined as the study of the distribution and abundance of organisms. Population ecologists study what determines the occurrence and abundance of species in space and time: their geog...Ecology is often defined as the study of the distribution and abundance of organisms. Population ecologists study what determines the occurrence and abundance of species in space and time: their geographic ranges, population sizes and densities, what factors result in them being so rare or common, and why these characteristics change over time.
- https://bio.libretexts.org/Workbench/General_Ecology_Ecology/Chapter_9%3A_The_Ecology_of_Populations/9.1%3A_What_is_Population_EcologyEcology is often defined as the study of the distribution and abundance of organisms. Population ecologists study what determines the occurrence and abundance of species in space and time: their geog...Ecology is often defined as the study of the distribution and abundance of organisms. Population ecologists study what determines the occurrence and abundance of species in space and time: their geographic ranges, population sizes and densities, what factors result in them being so rare or common, and why these characteristics change over time.
