Terms : Hide Images
| 3315145885 | Minimum Viable Population | The minimum number of individuals in a population necessary for long term survival | 0 | |
| 3315148032 | Exponential Growth | Growth that occurs at a fixed percentage per unit time | 1 | |
| 3315150298 | Survivorship Cause | A graph showing the number of survivors in different age groups for a particular species | 2 | |
| 3315154172 | Density-Dependent Factors | Factors that affect population growth in proportion to the number of individuals | 3 | |
| 3315157173 | Density-Independent Factors | Factors that affect population growth regardless of the number of individuals | 4 | |
| 3315157174 | Census | Total count of population in an area | 5 | |
| 3315158619 | Abundance | Amount of individuals in a study area | 6 | |
| 3315161404 | Density | The number of individuals per unit in the area | 7 | |
| 3315162291 | Ecological Density | Number of individuals per habitable area | 8 | |
| 3315165165 | Relative Species Density | The total number of individuals in a species divided by the total number of individuals of all species in the location | 9 | |
| 3315169687 | Population Change | The change in the number of individuals in a population, calculated by the formula population change = (births + immigration) - (deaths + emigration) | 10 | |
| 3315171511 | Emigration | The movement of individuals out of a specific area | 11 | |
| 3315184777 | Immigration | The movement of individuals into a specific area | 12 | |
| 3315186445 | Persistence | The ability of a living system to survive moderate disturbances | 13 | |
| 3315187958 | Habitable Fragmentation | The breakup of a habitat into smaller pieces, usually as a result of human activity. | 14 | |
| 3315191787 | Ecotone | The transition zone in which one type of ecosystem tends to merge with another ecosystem. | 15 | |
| 3315194079 | Eco Effect | The existence of a greater number of species and a higher population density in an ecotone than in either adjacent ecosystem. | 16 | |
| 3315218790 | Tipping Point | The point to the destruction of the environment where we can't get the ecosystem back to the way it previously was before | 17 | |
| 3315222000 | Secondary Succession | The series of community changes which take place on a previously colonized, but disturbed or damaged habitat. Examples include areas which have been cleared of existing vegetation (such as after tree-felling in a woodland) and destructive events such as fires. | 18 | |
| 3315227731 | resource partitioning | When species compete for resources | 19 | |
| 3315229867 | Species Resilliance | The capacity for a species to respond to the ecosystem and keep coming back and reproducing | 20 | |
| 3315277420 | Mutualism | A relationship between two species where both of them benefit | 21 | |
| 3315304395 | Parasitism | A relationship between two species where one benefits and one is drained | 22 | |
| 3315315521 | Population Density | A measurement of population per unit area or unit volume; it is a quantity of type number density. It is frequently applied to living organisms, and particularly to humans. It is a key geographic term. | 23 | |
| 3315319757 | Carrying Capacity | A biological species in an environment is the maximum population size of the species that the environment can sustain indefinitely, given the food, habitat, water, and other necessities available in the environment. | 24 | |
| 3315323060 | intrinsic rate of increase | The rate at which a population increases in size if there are no density-dependent forces regulating the population | 25 | |
| 3315328503 | interspecific competition | A form of competition in which individuals of different species compete for the same resource in an ecosystem | 26 | |
| 3315337197 | Environmental Resistance | the sum of the environmental factors (such as drought, mineral deficiencies, and competition) that tend to restrict the biotic potential of an organism or kind of organism and impose a limit on numerical increase. | 27 | |
| 3315339320 | ecological succession | The observed process of change in the species structure of an ecological community over time. The time scale can be decades (for example, after a wildfire), or even millions of years after a mass extinction. | 28 | |
| 3315340167 | Commensalism | One species benefits and the other is unaffected in this relationship | 29 | |
| 3315341731 | Coevolution | When species in different parts of the world evolve to look more similar | 30 | |
| 3315344657 | Biotic Potential | Is restricted by environmental resistance, any condition that inhibits the increase in number of the population. It is generally only reached when environmental conditions are very favorable. | 31 | |
| 3315348022 | Age Structure | This diagram shows the distribution by ages of females and males within a certain population in graphic form. | 32 | |
| 3315351802 | Predation | When one organism hunts and kills another for energy | 33 | |
| 3315352952 | Prey | An organism that is consumed for the energy of the predator | 34 | |
| 3315354597 | R-Selected Species | R-selected species are those that place an emphasis on a high growth rate, and, typically exploit less-crowded ecological niches, and produce many offspring, each of which has a relatively low probability of surviving to adulthood (i.e., high r, low K). | 35 | |
| 3315369952 | Population Dynamics | The branch of life sciences that studies the size and age composition of populations as dynamic systems, and the biological and environmental processes driving them (such as birth and death rates, and by immigration and emigration). | 36 | |
| 3315379048 | Predator-Prey Relationships | Predators eat the prey and they gain energy from them | 37 | |
| 3315383351 | Predators | The organisms that would eat the prey | 38 | |
| 3315388369 | Inhibition | A place where the organism can not survive | 39 |
