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In the context of natural systems, command and control management attempts to control nature in order to improve natural resource extractions, establish predictability, and reduce threats. [20] Command and control strategies include the use of herbicides and pesticides to improve crop yields; [ 20 ] the culling of predators to protect game bird ...
The increase in concentration of a chemical substance in the tissues of organisms comprising successively higher levels in a food chain. biological organization biomass The sum of all living organisms in a given area. biomass pyramid A graph that illustrates the productivity (in terms of biomass) within the various trophic levels comprising a ...
C3 plants, the other 95%, photosynthesise to form 3 carbon molecules and increase photosynthesis with as CO 2 levels increase. calorie – a basic measure of energy that has been replaced by the SI unit the joule; in physics it approximates the energy needed to increase the temperature of 1 gram of water by 1 °C which is about 4.184 joules.
Now the macro-level is much less defined and has shown less accurate results. However, "the ultimate aim of eco-efficiency analysis is to help move micro-level decision making into macro-level optimality." [1] [3] [6] The main goal in years to come is to create headline indicators to carry out macro-level analysis at a country/world scale. [3] [8]
Examples of these activities include habitat modification, freshwater consumption, an increase in nutrients due to fertilizers, and many others. [30] Increased nutrients can stimulate an algal bloom in waterbodies, increasing primary production but making the ecosystem less stable. [ 31 ]
An ecosystem (or ecological system) is a system formed by organisms in interaction with their environment. [2]: 458 The biotic and abiotic components are linked together through nutrient cycles and energy flows.
This glossary of biology terms is a list of definitions of fundamental terms and concepts used in biology, the study of life and of living organisms.It is intended as introductory material for novices; for more specific and technical definitions from sub-disciplines and related fields, see Glossary of cell biology, Glossary of genetics, Glossary of evolutionary biology, Glossary of ecology ...
Ecosystem services are ecologically mediated functional processes essential to sustaining healthy human societies. [6] Water provision and filtration, production of biomass in forestry, agriculture, and fisheries, and removal of greenhouse gases such as carbon dioxide (CO 2) from the atmosphere are examples of ecosystem services essential to public health and economic opportunity.