4915268034 | ecology | scientific study of interactions between organisms and environment | | 0 |
4943359365 | community ecology | ecology of communities, or groups of individuals of different species | | 1 |
4915366353 | biome | a large community of plants and animals in a distinct region | | 2 |
4915387896 | Tropical rain forest | Near equator, high humidity, trees with canopies | | 3 |
4915392413 | Desert | Temperature fluctuation, plants that germinate after hard rain | | 4 |
4915397212 | Temperate Grasslands | low annual rainfall, no forests | | 5 |
4915401471 | temperature deciduous forest | trees drop leaves in winter, species live close to ground | | 6 |
4915411667 | Conifer Forest/Taiga | Conifer (evergreen) forests, cold winters, heavy snowfall, large mammals | | 7 |
4915432492 | Tundra | little rainfall, "frozen desert," permafrost | | 8 |
4915408781 | order of biomes from equator to North Pole | tropical rain forest, desert, grasslands, temperate deciduous forest, taiga, tundra | | 9 |
4915270939 | intraspecific | interactions within species | | 10 |
4915290553 | interspecific | interaction between different species | | 11 |
4915293130 | competitive exclusion principle | Two species cannot coexist in a community if their niches are identical |  | 12 |
4915298489 | ecological niche | species use of biotic/abiotic resources in environment | | 13 |
4915302476 | aposematic coloration | coloring that warns predators/prey |  | 14 |
4915309323 | cryptic coloration | coloring that allows the organism to hide |  | 15 |
4915312207 | Batesian mimicry | harmless species resemble harmful species | | 16 |
4915314430 | Mullerian mimicry | two or more unpalatable species resemble eachother | | 17 |
4915322265 | Parasitism | One organism benefits and the other suffers | | 18 |
4915322266 | Examples of Parasitism | lice, tapeworms, ticks |  | 19 |
4915326640 | Commensalism | One organism benefits and the other is not affected | | 20 |
4915326641 | Examples of Commensalism | Barnacles on whale, anenomes and clownfish |  | 21 |
4915326642 | Mutualism | Both organisms benefit | | 22 |
4915329619 | Examples of mutualism | Flowers and bees, people and plants |  | 23 |
4943355466 | population ecology | study of size, distribution, and density of populations and how they change over time | | 24 |
4943243791 | population | a group of individuals of one species in one area | | 25 |
4943246610 | Density | number of individuals per volume | | 26 |
4943249351 | mark and recapture | Organisms are captured, tagged, and then released |  | 27 |
4943253587 | dispersion | spacing of individuals | | 28 |
4943253588 | Clumped | Organisms clump together to breed/seek food
Easier to be preyed upon |  | 29 |
4943256849 | Uniform | Organisms arrange themselves in near equal distance from each other
Sometimes due to territoriality |  | 30 |
4943263098 | Random | No attraction/repulsion between the organisms |  | 31 |
4943267894 | Survivorship curves | curves that show size and composition of a population |  | 32 |
4943269752 | Type I curve | Low death reates in young/middle age and high mortality in adults (humans) | | 33 |
4943269753 | Type 2 curve | Death rate is constant | | 34 |
4943269754 | Type 3 curve | High infant mortality but death rate decline as individuals reach certain age | | 35 |
4943282738 | Age structure diagram | shows relative numbers of individuals at each age |  | 36 |
4943286620 | zero population growth | birth rates=death rates | | 37 |
5037529927 | population growth equation | |  | 38 |
4943290157 | exponential growth model | Constant increase due to availability of resources
Ex: bacteria, humans
dn/dt=rmaxN |  | 39 |
4943292513 | logistical growth model | Increase until carrying capacity reached (K)
Ex: most organisms |  | 40 |
4943294751 | Carrying capacity | maximum number of individuals per population
aka K |  | 41 |
5037545576 | How are per capita rates calculated? | Birth/original= per capita birth rate
Death/original= per capita death rate
per capita birth rate-per capita death rate= per capita rate | | 42 |
4943305128 | density dependent factors | increase directly as population density increases
Ex: competition, waste, predation, disease | | 43 |
4943306610 | density independent factors | unrelated to population density
ex: natural disasters |  | 44 |
4943331334 | life history | changes that occur in an organisms' lifetime | | 45 |
4943343380 | k-selected populations | Low reproductive rates, whose offspring need nurturing
Ex: humans | | 46 |
4943343381 | r-selected populations | aka oppurtunistic
Grow fast, reproduce quickly, die quickly | | 47 |
5210420435 | The demographic transition | transition from high birth and death rates to lower birth and death rates as a country or region develops from a pre-industrial to an industrialized economic system. |  | 48 |
5210428911 | Pre-industrial stage | Highly fluctuating birth/death rates | | 49 |
5210430653 | Transitional stage | high birth rate, decreasing death rate, rising population | | 50 |
5210437033 | Late expanding stage | birth rate starts to fall
death rate continues to fall |  | 51 |
5210449812 | Low fluctuating stage | birth and death rate both low
steady population
fully developed middle class
politically and economically stable
zero growth! | | 52 |
5210453261 | Theoretical declining population stage | death rate > birth rate | | 53 |
5118054833 | Sulfur Cycle | |  | 54 |
5118054834 | Carbon Cycle | |  | 55 |
5118054835 | Nitrogen Cycle | |  | 56 |
5157794624 | nitrogen fixation | Bacteria converts nitrogen gas into forms usable by plants (nitrates in soil) | | 57 |
5157797471 | nitrification | ammonium is oxidized to nitrite and nitrate | | 58 |
5157800340 | denitrification | bacteria denitrifies nitrates/nitrates to release nitrogen to the atmosphere | | 59 |
5118054926 | Phosphorous Cycle | |  | 60 |
5210487493 | biodiversity | the diversity of life in a community | | 61 |
5210487494 | What are some threats to biodiversity? | habitat fragmentation
introduced species
overexploitation of resources | | 62 |
5210493819 | What are the three levels of biodiversity? | genetic
species
ecosystem | | 63 |
5210633338 | invasive species | a species not native to ecosystem | | 64 |
5210495437 | trophic levels | whom eats whom in an environment | | 65 |
5210608824 | producer | synthesizes sugars and other organic molecules; autotroph |  | 66 |
5210617269 | consumers | consumes producers and consumers lower in trophic level |  | 67 |
5210621400 | primary productivity | amount of light energy converted to chemical energy by autotrophs during given time period | | 68 |
5210624359 | 10% rule | 10% of energy is lost between trophic levels |  | 69 |
5210626291 | food web | |  | 70 |
5210498639 | biomagnification | the increase in concentration of a substance in a food chain, not an organism. | | 71 |
5210545830 | bioaccumulation | the increase in concentration of a substance(s) in an organism or a part of that organism. | | 72 |