ECO 9.3 Flashcards
r
a small investment of resources into each offspring producing many low-effort babies
k
carrying capacity, babies entering a population near its carrying capacity
a tradeoff between offspring and offspring quality
more quality put into offspring they have lower numbers and the less invested they have more kids
r characteristics
high number of offspring, low parental care, early reproductive maturity, small size, early independence, short life span
k characteristics
low number of offspring, high parental care, late reproductive maturity, large size, late independence, high ability to learn
type 1
high survivorship throughout life
type 2
the constant proportion of members dying
type 3
survivorship of high morality at young ages
r’s type
type 3
k’s type
type 1
species that can be found between k and r
humans depend on how many babies they have
What does a survivorship curve show
How the number of individuals in a population drops off with time
what is a cohort
group of individuals in a population of the same species born at the same time
what is a log scale
the graph shows the difference in a relationship over time to show survivorship with the time that highlights the same proportion
biotic and abiotic factors affecting survivorship curfves
competition affects the morality rate, temperature is an abiotic factor affecting the mortality rate
