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Ecology is the study of the interactions between organisms and their environment. Ecosystem. All the plants and animals in an area interacting with each other and their environment. Habitat. An area where a plant or animal lives. Herbivore, Carnivore or Omnivore?. - PowerPoint PPT Presentation
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Ecology is the study of the interactions between organisms and their environment
Ecosystem
• All the plants and animals in an area interacting with each other and their environment
Habitat
• An area where a plant or animal lives
Herbivore, Carnivore or Omnivore?
Herbivore, Carnivore or Omnivore?
Food Chain
• Is a list of organisms in which each organism is eaten by the next one in the chain.
Food Web
• Two or more interconnected food chains
Habitat Study
27
Homemade Quadrat Internal area = 0.25m2
28
Quadrat with marker
29
Qualitative survey
• a study determining the presence/absence of a substance or organism in a sample or habitat
30
Quantitative survey
• a study determining the amount of a substance or number of an organism present in a sample or habitat
% Frequency =
Number of quadrats in which ‘x’ found x 100Total number of quadrats
POOTER
PITFALL TRAP
BEATING TRAY
SWEEP NET
Adaptions
What adaptations does a shark have?
Pollution
• Pollution is the process by which harmful substances are added to the environment by humans.
Examples:• Soil pollution• Water pollution• Air pollution• Greenhouse effect
Conservation
• Conservation is the preservation of the earth’s natural resources for the future.
Examples• National parks • Hedgerow and bogland conservation• Listing of threatened species e.g. lizard, frog and
stoat in Ireland• Zoos and wildlife parks – by breeding endangered
species
Waste Management• Waste management involves managing the
disposal of our waste productsExamples• Reduce, Reuse, Recycle campaign• Compost bin – vegetable peelings and garden
waste.• Incineration
Two negative effects of humans on the environment
• Air pollution• Habitat destruction (e.g. deforestation,
overhunting, etc)
Two positive effects of humans on environment
• Protection of endangered species Tree planting