APES Unit 3:Population Flashcards

15432914156	Three types of population distribution	Random, Uniform, Clumped	0
15432914157	Density Dependent Factor	A factor that influences an individuals probability of survival and reproduction in a manner that depends on the size of the population (i.e. predation, disease, food supply)	1
15432914158	Density Independent Factor	A factor that has the same effect on a individual's probability of survival and reproduction at any populations size	2
15432914159	exponential growth models	occurs when populations are not limited by resources. (J-curve)	3
15432914160	logistical growth model	occurs when populations reach a carrying capacity established by a limiting resource and initially experience large growth but then level off. However, they do not exist exactly at carrying capacity. They fluctuate above and below.	4
15432914161	Type I, II, III Curves	reproductive strategies of different species. Type I fosters their young, Type II does sorta kinda, and type III straight up ditches their kids	5
15432914162	K selective strategies	A species with a low intrinsic growth rate that causes the population to increase slowly until it reaches carrying capacity (TYPE I)	6
15432914163	R selective strategies	A species with a high intrinsic growth rate that causes the population to overshoot and quickly die off (TYPE III)	7
15432914164	Population size	The total number of individuals within a defined area at a given time	8
15432914165	Population density	The number of individuals per unit area at a given time	9
15432914166	Population distribution	How individuals are distributed with respect to one another	10
15432914167	Population age structure	how many individuals fit into age categories. Shown by age structure diagrams	11
15432914168	Growth Rate	The number of offspring an individual can produce in a given period of time, minus the deaths of the individual or offspring during the same period	12
15432914170	Competition	The struggle of individuals to obtain a limiting resource	13
15432914180	Community Ecology	The study of the interactions between species in a habitat	14
15432914186	How does the human population not have a food deficit?	Innovation and Technology	15
15432914187	growth rate equation	CBR-CDR/10	16
15432914188	doubling time for a population equation	70/growth rate	17
15432914190	Total Fertility Rate (TFR)	estimate of the average number of children each woman will bear in her lifetime	18
15432914191	Replacement level fertility (RLF)	2.1	19
15432914192	Developed Countries	Countries with high levels of industrialization and income	20
15432914193	Developing Countries	Countries with relatively low levels of industrialization and income	21
15432914195	Infant Mortality Rate	Number of deaths of children under the age of one per 1000 births	22
15432914197	Demographic Transition	The theory that as a country moves from a subsistence economy to and industrialized one, it undergoes a predictable shift in population growth	23
15432914198	Family Planning	Regulating the number or spacing of children through the use of birth control	24
15432995625	2 indicators of overall health in a country	life expectancy and infant mortality rate	25
15433001002	Top 3 most populous contries	CHina, INdia, America	26
15433015824	Generalist	a species with a broad niche that can tolerate a wide range of conditions and can use a variety of resources	27
15433020641	Specialist	A consumer that primarily eats one specific organism or feeds on a very small number of organisms.	28
15433031245	Biotic Potential	The maximum rate at which a population could increase under ideal conditions	29
15433035750	Ecological Footprint	the impact of a person or community on the environment, expressed as the amount of land required to sustain their use of natural resources.	30
15433045055	limiting factor	Any biotic or abiotic factor that restricts the existence, numbers, reproduction, or distribution of organisms.	31