forest ecosystem
DESCRIPTION
This is presentation that talks about various forest ecosystems and flora and fauna prevailing there. It has simple language, points format and tabular columns for easy understanding. It also contains pictures.TRANSCRIPT
F LO RA A N D FA U N A
FOREST ECOSYSTEM
WHAT?
• An ecosystem is a biological community of interacting organisms and their physical environment.
• A forest ecosystem is a terrestrial unit of living organisms (plants, animals and microorganisms), all interacting among themselves and with the environment (soil, climate, water and light) in which they live.
A FOREST:
FACTORS OF AN ECOSYSTEM
ABIOTIC FACTORS BIOTIC FACTORS
Sun: Provides light for photosynthesis
Producers: Plants that are a source of food and/or O2
Soil: Provides minerals and nutrients for plants(producers) to grow.
Primary Consumers: Herbivores that feed on producers
Water: Helps in Photosynthesis, hydration of flora and fauna, maintains optimum climate
Secondary Consumers: Carnivores that feed on primary consumers and/ or other secondary consumers
Air: Provides CO2 for photosynthesis and O2 for respiration
Decomposers: Organisms that decompose dead matter and supply minerals and other substances for the improvement to the soil
FOOD WEB
• Within a food web there are ‘predators’, that is, animals that hunt and prey on smaller animals for a source of food. In a food chain, the transfer of energy begins with the producer and ends with the highest order consumer, as follows:
• tree → insect → mouse → owl → eagle • However, in a food web the interaction between
organisms becomes more complex.
FOR EXAMPLE:
TYPES OF FORESTS
Deciduous Forests Tropical Rainforests
Coastal Forests Coniferous Forests
FAUNA AND WILDLIFE
CATEGORY DECIDUOUS FOREST
TROPICAL RAINFOREST
COASTAL FOREST
CONIFEROUS FOREST
Primary Consumers:
Rodents, Squirrels, Insects, Birds, Deer
Insects, Slugs, Humming Birds, Squirrels, Deer
Deer, Rabbits, Squirrel, Birds, Insects
Moose, Elks, Birds, Insects, Small Rodents,
Secondary Consumers:
Possums, Raccoons, Snakes, Foxes
Frogs, Birds, Rodents, Spiders,
Rodents, Raccoons, Spiders
Birds, Skunks, Owls, Weasels, Foxes
Tertiary Consumers:
Cougars, Bears
Hawks, Owls, Foxes, Jackals, Tigers
Eagles, Owls, Tigers
Wolves, Lynx, Bears
THANK YOU
DECIDUOUS FORESTS
• Trees here have large, flat leaves that drop off in the fall and new leaves grow in spring
• Leaves change colour with the seasons• These grow in places with hot, wet summers and cool,
dry winters.
A GLIMPSE…
TROPICAL RAINFOREST
• These trees grow in places that are hot and wet all year.
• Trees are very tall and leaves are always green• The forest has three layers: canopy, understory, forest
floor.
SNEAK PEEK…
COASTAL FORESTS
• Grows in places where there is lots of rain.• Temperature is not too hot or too cold, just cool.• Has three layers: canopy, understory, forest floor
A GLANCE…
CONIFEROUS FOREST
• Grows in places with very cold winters and cool summers
• The leaves look like needles so they don’t need much water
• Seeds grow in cones• Get less rain than all the other forests
A VISUAL…