Niches + relationships
relationship where one thing eats another
predation
name given for something that converts light into energy
producer
richness
name for how much an ecosystem can maintain
carrying capacity
series of questions to determine species with only 2 answers for each question
dichotomous key
a species that is incredibly important to the ecosystem and will impact it heavily if removed
keystone
with an energy pyramid- how much energy is *generally* moved to the next level.
~10%
square placed at various points in a study area
quadrat
name for species that show care for young
k- strategists
species concept based on whether or not organisms can interbreed
biological species concept
principle that both species would be better off if the other was gone. eventually one will see off the other
competitive exlcusion
name for gross productivity minus the amount used in respiration
net productivity
explain how habitat destruction influences community structure
lowered resources- food, shelter, water
fragmentation- lowering genetic diversity of species
4 things needed to calculate population growth rate
births, deaths, immigration, emigration
name for progression of an ecosystem started with a glacier receding
primary
bacteria living in your intestines
mutualism
carbon containing molecule that is converted in humans to CO2
glucose (C6H12O6)
2 ways to minimise bias in sampling
-number of samples
-random number generators
-criteria for counting
-calibrating equipment
lincoln index formula
N=(Mxn)/m
list the names of levels used in linnean classification
domain
kingdom
phylum
class
order
family
genus
species
trees with a canopy stopping other smaller plants from getting sunlight
amensalism
stage of nitrogen cycle after atmospheric nitrogen is converted to ammonia
nitrites (NO2-)
full formula for SDI
SDI =1−∑n(n−1)/N(N−1)
exponential population growth that then stabilises
S curve
animal with scientific name Macropus rufus
red kangaroo