Geographic Range
Population size and Density
Dispersion of Populations
Studying Populations
100
What is Geographic Range?
The overall spatial boundaries within which a population lives.
100
What does (Nt) and (D) represent?
-the number of individuals of a specific species that occupies a given area or volume at a given time.
-the number of individuals of the same species that occurs per unit area or volume
100
What is dispersion?
the pattern of distribution in which a population exists; may be clumped, random, or uniform.
100
Which Term refers to all the individuals of a signal species that live together in the same please at the same time?
a)community
b)genus
c)population
d)ecosystem
c) Population
200
what is Habitat?
Is a specific environment where people live
200
When measuring the population density, what can it be misleading about it?
the unused or unusable space within a habitat
200
True or False:
this is a clumped dispersion.
False this a random dispersion
200
Which dispersion pattern does territorial behaviour produce?
a) random dispersion
b) Clumped dispersion
c) uniform dispersion
d) linear dispersion
C) uniform dispersion
300
_____ population of rare species are found in the southern part of Manitoulin Island and on the Bruce Peninsula
38 percentage
300
How can ecologists differentiate between the two?
by using crude density and ecological density
300
Name the three situations in clumped dispersion that affect the natural habitat.
Suitable living conditions are often distributed in patches.
Populations of some social animals are clumped because mates are easy to locate within groups.
Populations can be clumped due to limited seed dispersal or asexual reproduction
300
true or false.
The long-term effects of studying and monitoring animals population are well understood by scientists.
False
400
What is a habitat characterized by
Biotic and abiotic features
400
What is the equation to calculate density and what do the letters symbolize?
D=N/S
N-The number of individuals in the population
S-The space occupied by the population
400
Why is that a random dispersion of trees that cover many hectares have offsprings that clump under the parent trees?
Even though they are randomly dispersed, their seed production depends on the size of the organisms and the size of the study area being examined.
400
This sampling is used to estimate the population size and density by comparing the proportion of marked and unmarked animals that are captured in a given area sometimes called.....
Mark-recapture sampling and the capture-recapture method
500
Lakeside daisy is mainly found in Alvar habitats. what are the threats for this plan to grow in that habitat?
Quarry and cottage development, it also increased recreational usage.
500
Solve the following: researchers have discovered 780 cherry blossoms are growing in a 5-hectare area, calculate the density of the trees.
780 trees divided by 5 ha= 156 trees/ha
500
When a group of animals are clumped together in a section part of an area, why is it expected for the dispersion to change?
due to the seasonal cycle and the distribution of resources
500
What should be made sure when it comes to animals being used in research?
They are valid, humane, justifiable, and considerate.