Terms : Hide Images
| 9418354070 | age structure | shows the distribution of age groups in a population (pyramid when growing), | 0 | |
| 9418354071 | carrying capacity | max population size that the environment can sustain | 1 | |
| 9418354072 | Decomposer | decay at microscopic level | 2 | |
| 9418354073 | density dependent factor | factor limiting the size of a population whose effect is dependent on the number of individuals in the population (disease: limits growth and larger effect on bigger populations-overcrowding) | 3 | |
| 9418354074 | Detritivore | feed on decaying matter | 4 | |
| 9418354075 | ecological niche | particular set of abiotic and biotic conditions and resources to which an organism or population responds | 5 | |
| 9418354076 | ecological pyramid | shows biomass or bio productivity of each trophic level in a given ecosystem | 6 | |
| 9418354077 | food chain/food web | network of links in an ecosystem showing predator and prey | 7 | |
| 9418354078 | GPP | gross primary productivity- rate at which plants photosynthesize | 8 | |
| 9418354079 | interspecific competition | individuals of different species compete | 9 | |
| 9418354080 | intraspecific competition | competition between same species | 10 | |
| 9418354081 | K-selection | large organisms, stable environment, few offspring, long life, etc. | 11 | |
| 9418354082 | limiting factor | environmental conditions that limit the growth abundance or distribution of an organism | 12 | |
| 9418354083 | r selection | small organisms, unstable envrionment, short life, many offspring | 13 | |
| 9418354084 | trophic level | level of hierarchy in an ecosystem | 14 | |
| 9418354085 | Biosphere | part of the earth inhabited by organisms | 15 | |
| 9418354086 | Open system | exchanges matter and energy with surroundings(ecosystems) | 16 | |
| 9418354087 | Closed system | exchanges energy but not matter (our planet) | 17 | |
| 9418354088 | Isolated system | exchanges neither energy nor matter with surroundings(lab experiments) | 18 | |
| 9418354089 | System | comprised of storages and flows | 19 | |
| 9418354090 | Flows | provide inputs and outputs of energy and matter. May be either transfers or transformations(arrows) | 20 | |
| 9418354091 | Storages | (rectangular boxes) | 21 | |
| 9418354092 | Ecological succession | change in ecosystem when one community replaces another due to changing abiotic and biotic factors; Predictable changes that occur in an ecological community over time | 22 | |
| 9418354093 | Primary succession | pattern of changes in community when no soil(ice melting to reveal bare rock)(pioneer species, seed dispersal) | 23 | |
| 9418354094 | Secondary succession | pattern of changes in the community that occur after a disturbance(farming, logging)(low growing plants-trees) | 24 | |
| 9418354095 | Pioneer species | establish and break down rock to create soil(moss, lichen) | 25 | |
| 9418354096 | Introduced species | non native, deliberately/accidentally brought into ecosystems by humans | 26 | |
| 9418354097 | Invasive species | non native, cause harm to local ecosystem(Kudzu)- habitat degradation and loss of native species and loss of income and crop damage | 27 | |
| 9418354098 | Stable equilibrium | ecosystems are in a stable equilibrium, steady equ, or one that is growing over time and happen due to stabilizing negative feedback loops. Condition of a system in which there is a tendency to return to the previous equilibrium following disturbance | 28 | |
| 9418354099 | Static equilibrium | no change | 29 | |
| 9418354100 | Steady state equilibrium | no changes over long term but oscillations in the short term (body temperature in animals) | 30 | |
| 9418354101 | First law of thermodynamics | law of conservation of energy, enery in an isolated system can be transformed but cannot be created or destroyed | 31 | |
| 9418354102 | Second law of thermodynamics | entropy of a system increases over time. Increase in entropy arising from energy transformations reduces the energy available to do work. | 32 | |
| 9418354103 | Diversity | variation in ecosystems/life | 33 | |
| 9418354104 | Keystone species | one species that is disproportionally more important in ecosystem, remove it and whole ecosystem falls apart(sea otters, jaguars) | 34 | |
| 9418354105 | Ecosystem | an ecological community plus the abiotic envrionment with which it exchanges energy and materials | 35 | |
| 9418354106 | NPP | Net Primary Production- measure of the flow of materials and energy into the biotic component, varies among ecosystems and latitudes | 36 | |
| 9418354107 | Greenhouse effect | energy is kept within the atmosphere due to the bouncing effect of infrared wavelengths off the crust and absorbed by greenhouse gases which are warmed (water vapor, carbon dioxide, methane, nitrous oxide) | 37 | |
| 9418354108 | Sustainability | the use and management of resources that allows full natural replacement of the resources exploited and the environment the resources were taken from(natural capital and natural income) | 38 | |
| 9418354109 | Nitrogen cycle | bacteria fix nitrogen into nitrate, plants abosrbed nitrate, animals eat plants, as decomposed bacteria convert nitrate to nitrogen | 39 | |
| 9418354110 | threatened species | species at risk of being endangered | 40 | |
| 9418354111 | Pollution | addition of a substance to an environment through human activity at a rate that is greater than at which it can be rendered harmless by the environment | 41 | |
| 9418354112 | Community | group of organism living in same area | 42 | |
| 9418354113 | Biome | flora and fauna occupying a habitat | 43 | |
| 9418354114 | carbon cycle | respiration letting CO2 out and photosynthesis taking it in an\d decomposition of matter/waste lets CO2 out, fossil fuels | 44 | |
| 9418354115 | endangered species | species about to be extinct | 45 | |
| 9418354116 | circadian rhythm | controls daily cycle of behavior, free run period that is genetically programmed but also entrained to the light dark cycle by the environment | 46 | |
| 9418354117 | Imprinting | rapid learning that occurs during brief critical period, est long lasting behavioral response, attachment to parents | 47 | |
| 9418354120 | Symbiosis | interactions between two different organisms (Mutalism +/+) (Parasitism +/-) (Commensalism +/0) | 48 | |
| 9418387422 | Survivorship curve |  | 49 | |
| 9418388645 | logistic growth vs. exponential growth |  | 50 |
