Ecology test Flashcards
R vs K growth, Biogeochemical cycles (N,C,P) Invasive Species Sustainability (46 cards)
what type of growth is exponential grouwth (describe graph)
Has a lag phase but then goes up increasingly fast (no carrying capacity phase)
when would you say r-
to describe the animal or thing that you are graphing
how to graph both growths
of indivulaes on the left side - time at the bottom
what are the characteritisics/signs of exponential growth
- usual small
- lots of offspring (babies)
- short life span
examples of exponenrtial growth animals
-insects (spiders)
-weeds(dandenlions)
-salmon(lay 100s of eggs)
What growth are turtles
Exponential
- they are big but they have a bunch of babies and most of them don’t even make it to the water bf being killed
2 Example of exponential growth
- in the spring there are 100 bunnies -> late spring there are 1,000 bunnies after they mated and gave birth – lag phase = is in the winter - exponential phase = late spring after mating and birth
- 2 geese have 5 babies each of those 5 babies have there own five babes - 2, 7, 32 ect.
lag phase
slow growth (beggining of graph)
exponential phase
increasing increasingly - faster rate - not conastants ( increases more every time
what type of a graph is Logistic Growth
Lag phase -> exp phase -> carrying capacity ( lagging, spikes up, then it becomes steady. ex 2 ,4 -> 50, 108 -> 105, 107
K-growth
carrying capacity
Depending if you have … affects if you have a low of a high cc
- food
-space
-higher temp
hunting, fishing
Highest carrying capacity in the world
Coral reefs + rainforest
signs/ charactertisics of logistic growth
-big
-few off springs
-longer life spans
the moms normally stay by their kids like polar bears and thats why they don’t have a lot of babies + thats why they live longer
can somethign fit in both graphs?
no everything fits one graph
examples of k-growth species
polar bears, elephant, giraffe, pine tree, maple trees
exmplantion of a logistic growth situation
a few deers -> they start to mate and go into the expontiaonl phase -> then people start hunting them which is the carrying capacity
how do invasive species flourish/not die
-lack of predators
- no co-evouluation (ex. nothing evolves to be immune to the venom or like the taste ex)
-weather conditions are perfect (condionts like where it normaly lives)
where do most evasive species normally live
tropical areas
peral pigs ex
from eurpoe bad cuz they alter the water. Its ok that eurpoe has them bc they have predaorts and they have been their for millions of years (eurpe adapted)
Birmuse Pyathon ex. with growth
from asai, were in a breeding facilaty but got knocked out during hurricane. The lag phase was them growin slowly and starting to mate - they then got huge and multipled like crazy (exp. phase) and no cc bc there wasnt
- no preadorts
2.no co evultiaon - floraida temp js like asai (tropical)
examples of some invasive species
red savage crayfish
lion fish
birmuse pyathon
japense knotweed
sustainablity
less of an impact on the enviorment - things taht are sustainable have a net 0 impact ( not postivie or negative)
ex of sustainablity
- composting, water bottle,
- cut down tree -> make pencilas -> plant more trees -> cut down trees -> make pencils -> plant trees
- woodys pond water -> into sprinklers - water into pond -> then water into sprinklers
what are net postives and net negatives
+ = garden , saving money in bank accent
- = most of what humans do/ cruise drive, pollution , make pencils but don’t put in new ones
