Transcript PRESENTATION NAME

Ecology: Habitats & Population
Ecology: Habitats & Populations
Tell whether the organism is abiotic or
biotic.

rabbit

sunlight

pebble

sunflower

biotic

abiotic

abiotic

biotic

Put the terms in order from smallest to largest:
community, organism, ecosystem, population
Organism
 Population
 Community
 Ecosystem

Smallest
Largest
Tell whether the following are a single organism,
a population, or a community

All the ladybugs in Robbinsville, NJ

Zebras

All the flamingoes in Miami, Fl

All the prairie dogs, hawks, grasses,

population

single species

population

community

single species
badgers, and snakes found on the
prairie

Honey bees
Identify the study: direct observation, indirect
observation, mark-and-recapture, or sampling




Counting all the sunflowers in the field Direct observation
Calculating the population of messenger pigeons by
capturing and marking them, releasing them to the
wild, and returning at a later date to capture
Mark-and-recapture
more.
Using the average number of bees usually found in
a hive and multiplying by the number of hives in an
area. Indirect observation
Counting the number of June bugs in a one square
meter of a meadow and multiplying by the total
area of the meadow to estimate the total number
of June bugs. Sampling
What is the formula for population
density?
Population density =
# of individuals
unit area
Use the diagram to answer each
question.
C
Questions:
1. How was the falcon
population changing
from 1994 to 1997?
Increasing
B
A
2. Which letter marks the
peak of the falcon
population?
Letter C
3. What was the falcon
population in 1988?
About 400 falcons
abiotic factor or biotic factor?
The living parts of a
habitat
The non-living parts of
a habitat

immigration or emigration?
When organism move out
of a population
When organisms move into
a population

birth rate or death rate?
The number of deaths in
a population over time
The number of births in a
population over time

species, population or community?
All the members of 1 species that
live in a particular area
 All the different populations that
live together in an area
 A group of organisms that are
physically similar and can
successfully mate

ecology, ecosystem, or habitat?
A community of organisms along
with the non-living factors
 The study of how living things
interact with each other and their
environment
 The environment that provides
what an organism needs to live

limiting factors, carrying capacity, or
population density?
The number of individuals in a
given area
 An environmental factor that
causes a population to decrease
 The largest population that an
area can support

Good Luck…study!