Download Limiting Factor

LIMITING FACTOR
Teachers: Delaney Rothstein, Erica Hoh, Lauren
DeGraff
DEFINITION AND EXAMPLES
Limiting Factors: Any factor or
condition that limits the growth of
the population in an ecosystem
• Tangible: able to touch or feel
• Tangible Example: Climate, the
available shelter, sunlight, and water
• Non tangible: objects or nouns that
can not be touched or felt
• Nontangible Examples: Diseases,
available food, and hunting animals
• Site:
http://www.worldbookonline.com/sc
iencepower/player?id=sci1competitio839981&spread=s05&unitid=200
•
“Physical Factors”
“Temperature”
“Nutrients found in the materials consumed by
organisms”
“Salinity =the taste sensation when common salt is
placed in the mouth”
“Light sources that are approachable”
“ Biological limiting factors”
“The amount of rivals dueling the specimen or
population for food”
“ The amount of predators and the amount of
Herbivores
Site:
http://www.geo.arizona.edu/geo4xx/geos412/OcSci07.
EcolIntro.pdf
Video:
http://studyjams.scholastic.com/studyjams/jams/science
/ecosystems/population-growth.htm
ELABORATION OF REAL LIFE EXAMPLES
• Due to the lack of nutrients in the soil farmers have to put down fertilizer
so that his/her plants will grow.
• Fertilizer runs into lakes which can increase the population of algae. The
algae absorbs the oxygen from the lake and limits the fishy population.
ANOTHER COMPONENT OF LIMITING
FACTORS: ECOLOGICAL BALANCE
“ Ecology is the science of the study of ecosystems. Ecological balance has been
defined by various online dictionaries “as a state of dynamic equilibrium within a
community of organisms in which genetic, species and ecosystem diversity remain
relatively stable, subject to gradual change through natural succession.” and “A
stable balance in the number of each species in an ecosystem.”
“The most important point being that the natural balance in an ecosystem is
maintained. This balance may be distributed due to the introduction of introduced
species, the sudden death of some species, the natural hazards or man-made
causes.”
Citations:
http://wwf.panda.org/aboutour_earth/teacher_resources/webfieldtrips/ecologica
l_balance/
LIMITING FACTORS=
Awesome!!!!!