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Statements

Subject Item
dbr:Aquatic-terrestrial_subsidies
rdfs:label
Aquatic-terrestrial subsidies
rdfs:comment
Energy, nutrients, and contaminants derived from aquatic ecosystems and transferred to terrestrial ecosystems are termed aquatic-terrestrial subsidies or, more simply, aquatic subsidies. Common examples of aquatic subsidies include organisms that move across habitat boundaries and deposit their nutrients as they decompose in terrestrial habitats or are consumed by terrestrial predators, such as spiders, lizards, birds, and bats. Aquatic insects that develop within streams and lakes before emerging as winged adults and moving to terrestrial habitats contribute to aquatic subsidies. Fish removed from aquatic ecosystems by terrestrial predators are another important example. Conversely, the flow of energy and nutrients from terrestrial ecosystems to aquatic ecosystems are considered terrestri
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dbr:Autochthon_(nature) dbr:Riparian_zone dbr:Microorganism dbr:Heterotrophic_nutrition dbr:DDT dbr:Aquatic_invertebrate dbr:Methylmercury dbr:River_ecosystem dbr:Polycyclic_aromatic_hydrocarbon dbr:Keystone_species dbr:Bird_migration dbr:Kenai_Peninsula dbr:Cellular_respiration dbr:Resource dbr:Guano dbr:Phenology dbr:Metamorphosis dbr:Decomposition dbr:Invertebrate dbr:Bioavailable dbr:Fly dbr:Food_web dbr:Organism dbr:Secondary_production dbr:Recruitment_(biology) dbr:Detrital dbr:Fatty_acids dbr:Herbivore dbr:Ecological_resilience n12:Male_brown_bear_eating_fat_rich_salmon_skin.jpg dbr:Terrestrial_animal dbr:Salmon dbr:Arctic dbr:Heterotroph dbr:Bacteria dbr:Deuterium dbr:Cross-boundary_subsidies dbr:Passerine n12:Caddis_pupae.JPG dbr:Zooplankton dbr:Exoskeleton dbr:Germination dbr:Biomagnification dbr:Isotope dbr:Polychlorinated_biphenyl dbr:Polychlorinated_biphenyls dbr:Isotope-ratio_mass_spectrometry dbr:Nitrogen dbr:Fish_migration dbr:Brown_bear dbr:Spawn_(biology) dbr:Dissolved_organic_carbon dbr:Organic_carbon dbr:Invertebrate_drift dbr:Bird dbr:Food_chain dbc:Trophic_ecology dbr:Particulate_organic_matter dbr:Parts-per_notation dbr:Spider dbr:Water_column dbr:Consumer_(food_chain) dbr:Microcystin dbr:Phytoplankton dbr:Carbon_isotopes n19:autochthonous dbr:Ecotone dbr:Ecosystem dbr:Terrestrial_ecosystems dbr:Carbon-13 dbr:Local_extinction dbc:Ecological_connectivity dbr:Aquatic_ecosystems dbr:Predation dbr:Trophic_cascade dbr:Solubility n12:Kofer_Stream_Flooded.jpg dbr:Algae dbr:Trophic_level dbr:Fish
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dbo:abstract
Energy, nutrients, and contaminants derived from aquatic ecosystems and transferred to terrestrial ecosystems are termed aquatic-terrestrial subsidies or, more simply, aquatic subsidies. Common examples of aquatic subsidies include organisms that move across habitat boundaries and deposit their nutrients as they decompose in terrestrial habitats or are consumed by terrestrial predators, such as spiders, lizards, birds, and bats. Aquatic insects that develop within streams and lakes before emerging as winged adults and moving to terrestrial habitats contribute to aquatic subsidies. Fish removed from aquatic ecosystems by terrestrial predators are another important example. Conversely, the flow of energy and nutrients from terrestrial ecosystems to aquatic ecosystems are considered terrestrial subsidies; both aquatic subsidies and terrestrial subsidies are types of cross-boundary subsidies. Energy and nutrients are derived from outside the ecosystem where they are ultimately consumed. Allochthonous describes resources and energy derived from another ecosystem; aquatic-terrestrial subsidies are examples of allochthonous resources. Autochthonous resources are produced by plants or algae within the local ecosystem Allochthonous resources, including aquatic-terrestrial subsidies, can subsidize predator populations and increase predator impacts on prey populations, sometimes initiating trophic cascades. Nutritional quality of autochthonous and allochthonous resources influences their use by animals and other consumers, even when they are readily available.
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dbr:Subsidy
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wikipedia-en:Aquatic-terrestrial_subsidies