Ecology 5.0 / 5 based on 1 rating ? BiologyEcology, ecosystems and environmental biologyA2/A-levelEdexcel Created by: Hana Cho ParkCreated on: 14-10-14 12:45 Habitat Place where an organism lives 1 of 35 Population All organisms of one species in a habitat 2 of 35 Population size Number of individuals of one species in a particular area 3 of 35 Community Populations of different species in a habitat cohabiting 4 of 35 Abiotic factors Non-living features of the ecosystem 5 of 35 Biotic factors Living features of the ecosystem 6 of 35 Abundance Number of individuals of one species in a particular area 7 of 35 Distribution Where a species is within a particular area 8 of 35 Net Productivity Amount of energy available to next trophic level 9 of 35 Carrying Capacity The maximum stable population size an ecosystem can support 10 of 35 Niche The role of an organism in its habitat including its biotic and abiotic factors 11 of 35 Succession Process by which an ecosystem changes over time 12 of 35 Climax Community Largest and most complex community an ecosystem can support 13 of 35 Climatic Climax Climax community for a particular climate 14 of 35 Plagioclimax Human/artificial prevention of succession 15 of 35 Climate Change Change in weather of a region over a period of time 16 of 35 Global Warming Rapid increase in global temperature over the last century 17 of 35 Dendrochronology Investigating age of trees using tree rings 18 of 35 Species Group of similar organisms that can reproduce to give fertile offspring 19 of 35 Evolution Change in allele frequency 20 of 35 Speciation Development of new species 21 of 35 Biomes Major ecosystems eg. Coniferous forests, Sahara... 22 of 35 Opportunists / Pioneer Species First plants / species to arrive on an empty inorganic surface 23 of 35 Ecosystem All interacting organisms and all the abiotic factors in a particular area 24 of 35 Leaching Drainage of mineral containing water through soils 25 of 35 Intraspecific Competition Competition for limited resources between members of the same species/ population 26 of 35 Interspecific Competition Competition for same resources between different species 27 of 35 Endemism State of a species being unique to an area 28 of 35 Biomass Weight of an organism in a given area/volume 29 of 35 Gross Primary Productivity Rate at which energy is incorporated into plants 30 of 35 Net Primary Productivity Energy stored in plant body tissue 31 of 35 Secondary Production Energy used to make animal biomass 32 of 35 Carbon Sinks Reservoirs where C is removed from atmosphere and 'locked up' in organic/ inorganic compounds 33 of 35 Greenhouse Effect Reduction of heat loss from surface of Earth by Greenhouse Gases 34 of 35 Wiggle Matching Process by which radiocarbon dating is confimed 35 of 35
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