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SDT306
Environment
| Term | Definition |
|---|---|
| Biosphere | All regions of the Earth, including its atmosphere, in which life exists |
| Ecological Niche | The combination of ranges of conditions (e.g. temperature and soil pH) within which a particular species can survive |
| Biome | Large areas of the planet, which have climatic and environmental conditions that determine the ecosystems and habitats found there |
| Ecosystem | A community of organisms interacting with each other and with their environment (e.g. a pond or a forest) |
| Habitat | Place with a particular kind of environment where a certain organism lives (e.g. coniferous forest for the red squirrel). |
| Provisioning services | the products obtained from ecosystems, including food, fresh water fuel and fibre (for clothes). |
| Regulating services | benefits obtained from the regulation of ecosystem processes, such as air quality, climate, erosion and pollination |
| Cultural services | non-material benefits that people obtain from ecosystems through spiritual enrichment, cognitive development, recreation and aesthetic experiences (e.g. spiritual and religious values, inspiration, sense of place, cultural heritage values). |
| Supporting services | those that are necessary for the production of all other ecosystem services. They often occur over a very long time and their impacts on people can be indirect. Examples include soil formation, photosynthesis and nutrient and water cycling. |
| Photosynthesis: | 6(carbon dioxide (CO2)+6 water (H2O) >=sugar (C6H12O6)+6O2 (oxygen) |
| Respiration | sugar (C6H12O6)+6O2 (oxygen)>=6(carbon dioxide (CO2)+6 water (H2O) |
| ecological footprint | environmental indicator calculates the area of land, of average productivity in the world, that would theoretically be required to provide the resources for a particular product, population, settlement or human activity at a given level of technology. |
| sustainable development | Allows current generations to develop economically prosperous, socially just and environmentally responsible ways to meet their needs without compromising the ability of the natural environment to provide the same services for future generations. |
| mode of a set of data | the value that appears most often |
| Mean of a data set | calculated by dividing the sum of all the samples by the number of samples |
| Median | a measure of central tendency. It represents the value for which 50% of observations a lower and 50% are higher.ranking the observations in order and taking the middle one |
| Range of numbers | The Range is the difference between the lowest and highest values. |
| Eco System | A collection of interacting communities. |
| Community | A collection of species, usually of similar sorts that interact. |
| Species | A group of organisms that interbreed to produce fertile offspring. |
| Population | A group of organisms of the same species that interact with each other. |
| Gene | A sequence of DNA that holds information relating to the building of a protein or part of a protein. |
| Evolutionary species concept (ESC) | A species is a lineage of ancestral descent which maintains its identity from other such lineages and which has its own evolutionary tendencies and historical fate. (Wiley, 1978, p. 18) |
| Phylogenetic species concept (PSC) | A species is the smallest diagnosable cluster of individual organisms within which there is a parental pattern of ancestry and descent. (Cracraft, 1983, p. 161) |
| five kingdom taxons | Prokaryota, Fungi, Animalia, Protista and Plantae- two other kingdoms : Protozoa and Chromista. these predominantly microscopic organisms |
Created by:
Odonovana66
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