Textbook Notes (381,289)
CA (168,463)
UTSC (19,325)
BIOA02H3 (153)
Chapter 54

# Chapter 54 notes

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Department
Biological Sciences
Course Code
BIOA02H3
Professor
Kamini Persaud

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chapter 54:
54.1:
â€¢population: Any group of organisms coexisting at the same time and in the same
place and capable of interbreeding with one another.
â€¢population structure: The proportions of individuals in a population belonging to
different age classes (age structure). Also, the distribution of the population in space.
â€¢population density: The number of individuals (or modules) of a population in a unit
of area or volume.
â€¢The study of the birth, death, and movement rates that create population dynamics
(changes in population structure and density) is known as demography.
â€¢life table: A table showing, for a group of equalaged individuals, the proportion still
alive at different times in the future and the number of offspring they produce
during each time interval.
â€¢cohort : A group of similar-aged organisms, considered as it passes through time.
â€¢survivorship: The proportion of individuals in a cohort that is alive at some time in
the future.
â€¢m2/n2 = n1/N, n1 = amount initially marked, N = estimated population, n2 = amount
capture one 2nd catch, m2 = number of marked caught
54.2:
â€¢life history: The stages an individual goes through during its life.
54.3:
â€¢exponential growth: Growth, especially in the number of organisms in a population,
which is a geometric function of the size of the growing entity: the larger the entity,
the faster it grows
â€¢r= delta N/Delta T = (b-d)N, r = net reproductive rate, delta N = the change in # of
indivs, delta t = change in time, b = avg pop. per capita birth rate, d = avg pop. per
capita death rate. b includes both births and immigrations, and d includes both
deaths and emigrations
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Description
chapter 54: 54.1: population: Any group of organisms coexisting at the same time and in the same place and capable of interbreeding with one another. population structure: The proportions of individuals in a population belonging to different age classes (age structure). Also, the distribution of the population in space. population density: The number of individuals (or modules) of a population in a unit of area or volume. The study of the birth, death, and movement rates that create population dynamics (changes in population structure and density) is known as demography. life table: A table showing, for a group of equalaged individuals, the proportion still alive at different times in the future and the number of offspring they produce during each time interval. cohort : A group of similar-aged organisms, considered as it passes through
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