Campbell Biology 10th Edition: Chapter 53 (Population Ecology) Flashcards

2402917872	population ecology	study of populations in relation to environment	0
2402919925	populaiton	group of individuals of a single species living in the same general area	1
2402920708	density	number of individuals per unit area or volume	2
2402921441	dispersion	pattern of spacing among individuals within the boundaries of the population	3
2402925043	How can population size be determined?	extrapolation from small samples, index of population size, or the mark-recapture method	4
2402926308	Density is the result of?	interplay between processes that add and remove individuals	5
2402930538	immigration	influx of new individuals from other areas	6
2402931127	emigration	movement of individuals out of a population	7
2402933782	What factors influence spacing?	environmental and social factors	8
2402936572	clumped dispersion	individuals aggregate in patches, usually influenced by behavior or resource availability	9
2402938288	uniform dispersion	individuals are evenly distribute, usually because of social interactions like territoriality	10
2402940857	random dispersion	position of individuals is independent of other individuals	11
2402941865	demography	study of vital statistics of a population and how they change over time	12
2402943863	life table	age-specific summary of survival patterns in a population	13
2402944839	cohort	group of individuals of the same age	14
2402948129	survivorship curve	graphic way of representing the data in a life table	15
2402952288	Type I survivorship curve	low death rates early on then an increase amongst older groups	16
2402955249	Type II survivorship curves	constant death rate over organism's life span	17
2402956575	Type III survivorship curve	high death rates for young, slower death rate for survivors	18
2402963989	reproductive table/fertility schedule	age-specific summary of a population's reproductive rates	19
2402971731	life history	traits that affect its schedule of reproduction and survival	20
2402974765	What are the traits of life history?	the age when reproduction begins, the frequency of reproduction, and the amount of offspring produced per cycle	21
2402981563	semelparity/big-bang reproduction	reproduce once then die	22
2402982324	iteroparity/repeated reproduction	produce offspring repeatedly	23
2402985476	Unpredicable environments favor what kind of reproduciton?	semelparity/big-bang	24
2403001206	exponential population growth	population increase under idealized conditions	25
2403065795	What kind of growth is usually represented by a J curve?	exponential population growth	26
2403078704	carrying capacity	maximum population size that an environment can support	27
2403079571	logistic population growth	rate of increase declines as carrying capacity is reached	28
2403081939	What kind of growth is usually represented by an S curve?	logistic population growth	29
2403110341	density independent populations	birth/death rates aren't affected by density	30
2403111701	density dependent populations	birth rates fall and death rates rise with population density	31
2403120423	Competition for territory may limit what?	density	32
2403128967	Can population density affect disease?	yes	33
2403130759	metapopulations	groups of populations linked by immigration and emigration	34
2403142839	population dynamics	interactions between biotic and abiotic factors that cause variation in population size	35
2403148469	demographic transition	move from the first state to the second state	36
2403149208	age structure	relative number of individuals at each age	37
2403151029	ecological footprint	measure of how close an area is to its carrying capacity	38