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- https://bio.libretexts.org/Bookshelves/Introductory_and_General_Biology/General_Biology_1e_(OpenStax)/8%3A_Ecology/46%3A_Ecosystems/46.1%3A_Ecology_of_EcosystemsAn ecosystem is a community of living organisms and their interactions with their abiotic (non-living) environment. Ecosystems can be small, such as the tide pools found near the rocky shores of many ...An ecosystem is a community of living organisms and their interactions with their abiotic (non-living) environment. Ecosystems can be small, such as the tide pools found near the rocky shores of many oceans, or large, such as the Amazon Rainforest in Brazil.
- https://bio.libretexts.org/Bookshelves/Introductory_and_General_Biology/Principles_of_Biology/03%3A_Chapter_3/26%3A_Ecosystems/26.01%3A_Ecology_of_EcosystemsFor example, there is great variation in desert vegetation: the saguaro cacti and other plant life in the Sonoran Desert, in the United States, are relatively abundant compared to the desolate rocky d...For example, there is great variation in desert vegetation: the saguaro cacti and other plant life in the Sonoran Desert, in the United States, are relatively abundant compared to the desolate rocky desert of Boa Vista, an island off the coast of Western Africa (Figure \PageIndex2).
- https://bio.libretexts.org/Workbench/General_Ecology_Ecology/Chapter_19%3A_Food_Webs/19.3%3A_Trophic_CascadesIn both Zion National Park and Yosemite National Park, the increase in human visitation during the first half of the 20th century was found to correspond to the decline of native cougar (Puma concolor...In both Zion National Park and Yosemite National Park, the increase in human visitation during the first half of the 20th century was found to correspond to the decline of native cougar (Puma concolor) populations in at least part of their range.
- https://bio.libretexts.org/Workbench/General_Ecology_Ecology/Chapter_16%3A_Antagonistic_Interactions/16.3%3A_HerbivoryExamples include a decrease in abundance of leaf-chewing larvae in the fall when hardwood leaf palatability decreases due to increased tannin levels which results in a decline of arthropod species ric...Examples include a decrease in abundance of leaf-chewing larvae in the fall when hardwood leaf palatability decreases due to increased tannin levels which results in a decline of arthropod species richness and increased palatability of plant communities at higher elevations where grasshoppers abundances are lower . Climatic stressors such as ocean acidification can lead to responses in plant-herbivore interactions in relation to palatability as well .
- https://bio.libretexts.org/Courses/Gettysburg_College/01%3A_Ecology_for_All/19%3A_Food_Webs/19.03%3A_Trophic_CascadesIn both Zion National Park and Yosemite National Park, the increase in human visitation during the first half of the 20th century was found to correspond to the decline of native cougar (Puma concolor...In both Zion National Park and Yosemite National Park, the increase in human visitation during the first half of the 20th century was found to correspond to the decline of native cougar (Puma concolor) populations in at least part of their range.
- https://bio.libretexts.org/Courses/Gettysburg_College/01%3A_Ecology_for_All/16%3A_Antagonistic_Interactions/16.03%3A_HerbivoryCoevolution and phylogenetic correlation between herbivores and plants are important aspects of the influence of herbivore and plant interactions on communities and ecosystem functioning, especially i...Coevolution and phylogenetic correlation between herbivores and plants are important aspects of the influence of herbivore and plant interactions on communities and ecosystem functioning, especially in regard to herbivorous insects (Descombes et al., 2016; Pellissier et al., 2013; Mitter et al., 1991).
- https://bio.libretexts.org/Workbench/General_Ecology_Ecology/Chapter_19%3A_Food_Webs/19.1%3A_Introduction_to_and_Components_of_Food_WebsIn terrestrial ecosystems it is present as leaf litter and other organic matter that is intermixed with soil, which is denominated "soil organic matter". The detritus of aquatic ecosystems is organic ...In terrestrial ecosystems it is present as leaf litter and other organic matter that is intermixed with soil, which is denominated "soil organic matter". The detritus of aquatic ecosystems is organic material that is suspended in the water and accumulates in depositions on the floor of the body of water; when this floor is a seabed, such a deposition is denominated "marine snow".
- https://bio.libretexts.org/Courses/Cosumnes_River_College/Contemporary_Biology_(Aptekar)/11%3A_Ecosystem_Ecology/11.02%3A_Energy_Flow_through_EcosystemsGrazing food webs have a producer at their base, which is either a plant for terrestrial ecosystems or a phytoplankton for aquatic ecosystems. The producers pass their energy to the various trophic le...Grazing food webs have a producer at their base, which is either a plant for terrestrial ecosystems or a phytoplankton for aquatic ecosystems. The producers pass their energy to the various trophic levels of consumers. At the base of detrital food webs are the decomposers, which pass their energy to a variety of other consumers. Detrital food webs are important for the health of many grazing food webs because they eliminate dead and decaying organic material, clearing space for new organisms.
- https://bio.libretexts.org/Workbench/General_Ecology_Ecology/4.3%3A_Community_Ecology/4.3.2%3A_Antagonistic_InteractionsAntagonistic interactions are those where at least one individual experiences lowered fitness as an outcome.
- https://bio.libretexts.org/Workbench/BIOL-11B_Clovis_Community_College/20%3A_Ecosystem_Ecology/20.01%3A_Ecology_of_EcosystemsFor example, there is great variation in desert vegetation: the saguaro cacti and other plant life in the Sonoran Desert, in the United States, are relatively abundant compared to the desolate rocky d...For example, there is great variation in desert vegetation: the saguaro cacti and other plant life in the Sonoran Desert, in the United States, are relatively abundant compared to the desolate rocky desert of Boa Vista, an island off the coast of Western Africa (Figure 46.3).
- https://bio.libretexts.org/Courses/Thompson_Rivers_University/Principles_of_Biology_II_OL_ed/04%3A_Ecology/4.04%3A_Ecosystems_and_the_Biosphere/4.4.02%3A_Energy_Flow_through_EcosystemsAll living things require energy in one form or another. Energy is required by most complex metabolic pathways (often in the form of adenosine triphosphate, ATP), especially those responsible for buil...All living things require energy in one form or another. Energy is required by most complex metabolic pathways (often in the form of adenosine triphosphate, ATP), especially those responsible for building large molecules from smaller compounds, and life itself is an energy-driven process. Living organisms would not be able to assemble macromolecules (proteins, lipids, nucleic acids, and complex carbohydrates) from their monomeric subunits without a constant energy input.
