THE STUDY OF ECOLOGY
exponential growth
population growth based on the reproduction capability of individuals, despite available resources
logistic growth
population growth that reaches equilibrium and carrying capacity
There are three main branches of ecology:
1. population ecology, which focuses on changes occurring in one population or species 3. systems ecology, which focuses on complex ecological communities and all their interacting parts 2. applied ecology, which focuses on how human activities affect an ecosystem and ways to mitigate resulting issues
There are 20 mice in a 5 m2 field ecosystem. The population density of mice is _____.
4 per m2
Which of the following is an abiotic factor in an ecosystem?
Sunlight
population
a group of interacting individuals of the same species within the same geographic area
What is a population?
a group of organisms of the same kind or species
natality
birth rate
mortality
death rate
The study of the interactions between living things and their environment is called_____.
ecology
As population density------ , competition increases.
increases
biotic
living
Ecology is made up of _____.
many sciences
Which of the following is a geographical limit?
mountains
When determining the growth rate, you need to know _____.
natality mortality immigration rate emigration rate
abiotic
not living
Bacteria would be considered a(n)----- species.
r- selected
K-selected
species that are adapted to live in equilibrium at carrying capacity
r-selected
species that are adapted to maximize their reproductive rate despite carrying capacity
community
the interacting populations within a geographic area
ecology
the knowledge or life science that studies how living things depend on each other and their environment; the relationships of an organism with its total environment
Carrying capacity is _____.
the number of organisms an ecosystem can support
population density
the number of organisms living in a particular area
carrying capacity
the total number of organisms that an ecosystem can handle