Ecology
Published on Mar 02, 2016
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PRESENTATION OUTLINE
The branch of biology dealing with interactions among organisms and between organisms and their environment.
Photo by Arno Meintjes Wildlife
Population
Photo by Andrew R. Whalley
All the members of a particular species that live in one area.
Photo by woodleywonderworks
note: when organisms move out of the population it is known as emigration - this can decrease a population over time.
Community
Photo by Ippei & Janine Naoi
different kinds of organisms living in the same place at the same time.
Photo by Ippei & Janine Naoi
Ecosystem
Photo by Phil's 1stPix
Biosphere
Photo by KelseyFaust
The sum total of the variety of organisms in the biosphere is called biodiversity
Photo by subarcticmike
Biodiversity is extremely important to human society for many reasons.
1. It is a natural resource
Photo by NRCS Soil Health
SUNLIGHT
Photo by VinothChandar
is the original source of almost all the energy in the ecosystems.
Photo by Doug Scortegagna
Autotroph vs Heterotroph.
troph means feeder..
auto means self..
hetero means others..
so...
autotroph - organisms that use energy to produce its own food supply from inorganic compounds.
Photo by blmiers2
Producers - also known as autotrophs.
Consumers - also known as heterotrophs
Decomposers - organisms that obtain nutrients by breaking down dead and decaying plants and animals.
Photo by ressaure
Heterotroph/Consumer
(3 Kinds)
1. Herbivore - an organism that only eats plants.
Photo by Ray Bouknight
2. Carnivore - an organism that only eats meat.
Photo by fabiogis50 disgusted but back!!!
Autotroph/Producer
(2 kinds)
Food Chain
Food Web
a network of complex interactions among organisms in a community from producers to decomposers.
Photo by normanack
Ecological Pyramid
90% of energy is eliminated as heat.
Photo by Robert S. Donovan
Abiotic/Biotic
Abiotic: nonliving
(soil type, rainfall, temperature)
Photo by Grant is a Grant
