Simpsons Diversity Index
What does SDI stand for?
Simpson’s Diversity Index.
The other name for the Lincoln Index
What is Capture–mark–recapture
This Australian classification system uses vegetation structure and plant characteristics to classify plant communities.
What is Specht classification system
This number is regarded as the alpha threshold significance level
What is 0.05
How many cervical vertebrae does a giraffe have?
What is 7
What are the two main factors that influence species diversity measured by SDI?
Species richness and species evenness.
In the equation ((b+i)-(d+e)), these two processes are added together to calculate population gains.
What is births and immigration
This classification system uses climate variables to classify ecosystems into life zones.
What is Holdridge life-zone classification
A study comparing two ecosystems produces (p=0.08). Is the result statistically significant?
What is no OR statistically insignificant
What is the only mammal capable of true sustained flight?
What are Bats.
Which ecosystem has greater diversity: SDI = 0.82 or SDI = 0.46?
The ecosystem with SDI = 0.82.
Identify an assumption of the Lincoln Index
What is marking doesn't affect survivability OR animals equal chance of being marked OR animals equal chance of being redistributed
Name two environmental variables used in the Holdridge system.
What is Mean annual biotemperature and annual precipitation
A student records the number of plant species in five quadrats: 4, 6, 8, 7, 5. Calculate the mean.
What is 6 species
What distinguishes monotremes from other mammals?
What is egg-laying
A habitat has 3 individuals of Species A and 3 of Species B. Calculate the SDI.
What is 0.60
A population has 120 births, 30 immigrants, 50 deaths and 20 emigrants. This is the net change in population size.
What is 80 individuals
An ecosystem has trees 20 m tall with a foliage projective cover of 40%. What vegetation formation does this suggest?
What is Open forest
What does SD describe?
What is measures the spread of data around the mean OR variation of the data
How many hearts does an octopus have?
What are 3 hearts.
A habitat contains 8 individuals of Species A, 4 of Species B and 3 of Species C. Calculate the SDI to two decimal places.
What is 0.56
Researchers mark 40 animals, capture 50 animals in the second sample, and find 10 marked animals among them. Calculate the estimated population size.
What is 200 animals
Explain one key difference between the two classification systems.
What is Specht classifies vegetation formations using structural characteristics; Holdridge classifies life zones using climatic variables.
The mean number of insects in four quadrats is 15. Three quadrats contain 10, 12 and 18 insects. How many insects were found in the fourth quadrat?
What is 20 insects
Which amphibian can regenerate limbs and parts of its spinal cord?
What is the axolotl.