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- https://bio.libretexts.org/Courses/Norco_College/OpenStax_Biology_2e_for_Norco_College/31%3A_Population_and_Community_Ecology/31.07%3A_Community_EcologyPopulations rarely, if ever, live in isolation from populations of other species. In most cases, numerous species share a habitat. The interactions between these populations play a major role in regul...Populations rarely, if ever, live in isolation from populations of other species. In most cases, numerous species share a habitat. The interactions between these populations play a major role in regulating population growth and abundance. All populations occupying the same habitat form a community: populations inhabiting a specific area at the same time. The number of species occupying the same habitat and their relative abundance is known as species diversity.
- https://bio.libretexts.org/Courses/Hartnell_College/Environmental_Biology_(Fisher_and_Dorsner_Custom)/04%3A_Community_and_Population_Ecology/4.04%3A_Community_EcologyPopulations typically do not live in isolation from other species. Populations that interact within a given habitat form a community. The number of species occupying the same habitat and their relativ...Populations typically do not live in isolation from other species. Populations that interact within a given habitat form a community. The number of species occupying the same habitat and their relative abundance is known as the diversity of the community. Areas with low species diversity, such as the glaciers of Antarctica, still contain a wide variety of living organisms, whereas the diversity of tropical rainforests is so great that it cannot be accurately assessed.
- https://bio.libretexts.org/Courses/Bakersfield_College/Introduction_to_Environmental_Science/05%3A_Community_and_Population_Ecology/5.04%3A_Community_EcologyPopulations typically do not live in isolation from other species. Populations that interact within a given habitat form a community. The number of species occupying the same habitat and their relativ...Populations typically do not live in isolation from other species. Populations that interact within a given habitat form a community. The number of species occupying the same habitat and their relative abundance is known as the diversity of the community. Areas with low species diversity, such as the glaciers of Antarctica, still contain a wide variety of living organisms, whereas the diversity of tropical rainforests is so great that it cannot be accurately assessed.
- https://bio.libretexts.org/Courses/Evergreen_Valley_College/Introduction_to_Ecology_(Kappus)/08%3A_Species_Interactions_in_Communities/8.05%3A_SymbiosisThere are many cases in which two species live in close association for long periods. Such associations are called symbiotic. In symbiosis, at least one member of the pair benefits from the relationsh...There are many cases in which two species live in close association for long periods. Such associations are called symbiotic. In symbiosis, at least one member of the pair benefits from the relationship. The other member may be injured (parasitism), relatively unaffected (commensalism) or may also benefit (mutualism).
- https://bio.libretexts.org/Courses/Fresno_City_College/Introduction_to_Conservation_Biology/04%3A_Community_Ecology/4.01%3A_Biotic_InteractionsBiotic interactions describe the relationship between organisms. They may be intraspecific (within a species) or interspecific (between species). Antagonisms are interactions in which one or both orga...Biotic interactions describe the relationship between organisms. They may be intraspecific (within a species) or interspecific (between species). Antagonisms are interactions in which one or both organisms are harmed. In facilitation, at least one species benefits, and neither is harmed.
- https://bio.libretexts.org/Courses/Citrus_College/Citrus_College_General_Biology_Textbook/15%3A_Population_and_Community_Ecology/15.05%3A_Community_EcologyCommunities include all the different species living in a given area. The variety of these species is referred to as biodiversity. Many organisms have developed defenses against predation and herbivor...Communities include all the different species living in a given area. The variety of these species is referred to as biodiversity. Many organisms have developed defenses against predation and herbivory, including mechanical defenses, warning coloration, and mimicry. Two species cannot exist indefinitely in the same habitat competing directly for the same resources. Species may form symbiotic relationships such as commensalism, mutualism, or parasitism. Community structure is described by its fou
- https://bio.libretexts.org/Courses/Gettysburg_College/01%3A_Ecology_for_All/20%3A_Biogeochemical_Cycles/20.04%3A__The_Nitrogen_CycleHuman activity can release nitrogen into the environment by two primary means: the combustion of fossil fuels, which releases different nitrogen oxides, and by the use of artificial fertilizers (which...Human activity can release nitrogen into the environment by two primary means: the combustion of fossil fuels, which releases different nitrogen oxides, and by the use of artificial fertilizers (which contain nitrogen and phosphorus compounds) in agriculture, which are then washed into lakes, streams, and rivers by surface runoff.
- https://bio.libretexts.org/Courses/Prince_Georges_Community_College/BIO-1110_(Environmental_Biology)_OER_Textbook/02%3A_Ecological_Systems/2.05%3A_Chapter_10_-_Community_Ecology/10.01%3A_Community_EcologyPopulations typically do not live in isolation from other species. Populations that interact within a given habitat form a community. The number of species occupying the same habitat and their relativ...Populations typically do not live in isolation from other species. Populations that interact within a given habitat form a community. The number of species occupying the same habitat and their relative abundance is known as the diversity of the community. Areas with low species diversity, such as the glaciers of Antarctica, still contain a wide variety of living organisms, whereas the diversity of tropical rainforests is so great that it cannot be accurately assessed.
- https://bio.libretexts.org/Workbench/BIOL-11B_Clovis_Community_College/19%3A_Population_and_Community_Ecology/19.06%3A_Community_EcologyThe (a) honey locust tree (Gleditsia triacanthos) uses thorns, a mechanical defense, against herbivores, while the (b) Florida red-bellied turtle (Pseudemys nelsoni) uses its shell as a mechanical def...The (a) honey locust tree (Gleditsia triacanthos) uses thorns, a mechanical defense, against herbivores, while the (b) Florida red-bellied turtle (Pseudemys nelsoni) uses its shell as a mechanical defense against predators. (c) Foxglove (Digitalis sp.) uses a chemical defense: toxins produced by the plant can cause nausea, vomiting, hallucinations, convulsions, or death when consumed. (d) The North American millipede (Narceus americanus) uses both mechanical and chemical defenses: when threaten…
- https://bio.libretexts.org/Bookshelves/Introductory_and_General_Biology/Map%3A_Raven_Biology_12th_Edition/55%3A_Community_Ecology/55.02%3A_The_Ecological_Niche_Concept/55.2.01%3A_Community_EcologyPopulations rarely, if ever, live in isolation from populations of other species. In most cases, numerous species share a habitat. The interactions between these populations play a major role in regul...Populations rarely, if ever, live in isolation from populations of other species. In most cases, numerous species share a habitat. The interactions between these populations play a major role in regulating population growth and abundance. All populations occupying the same habitat form a community: populations inhabiting a specific area at the same time. The number of species occupying the same habitat and their relative abundance is known as species diversity.
- https://bio.libretexts.org/Bookshelves/Introductory_and_General_Biology/Map%3A_Raven_Biology_12th_Edition/55%3A_Community_Ecology/55.01%3A_Biological_Communities-_Species_Living_Together/55.1.02%3A_Community_EcologyPopulations rarely, if ever, live in isolation from populations of other species. In most cases, numerous species share a habitat. The interactions between these populations play a major role in regul...Populations rarely, if ever, live in isolation from populations of other species. In most cases, numerous species share a habitat. The interactions between these populations play a major role in regulating population growth and abundance. All populations occupying the same habitat form a community: populations inhabiting a specific area at the same time. The number of species occupying the same habitat and their relative abundance is known as species diversity.
