science biomes
Science biomes presentation
Tropical forest
- ecosystem type that occurs roughly within the latitudes 28 degrees north or south of the equator
-betweeen tropic of Capricorn and tropic of cancer
-characterized in two words: warm and wet.
-monthly temperatures exceed 18 °C
-Average annual rainfall is no less than 168 cm (66 in) and can exceed 1,000 cm (390 in) although it typically lies between 175 cm (69 in) and 200 cm (79 in)
-poor soils due to leaching
-high levels of biodiversity
-Around 40% to 75% of all biotic species are indigenous to the rainforests
-home to half of all the living animal and plant species on the planet.
Two-thirds of all flowering plants can be found in rainforests
-A single hectare of rainforest may contain 42,000 different species of insect, up to 807 trees of 313 species and 1,500 species of higher plants.
-over one quarter of natural medicines have been discovered within them.
-many millions of species of plants, insects and microorganisms still undiscovered in tropical rainforests.
-most threatened ecosystems globally due to large-scale fragmentation due to human activity.
-Habitat fragmentation caused by geological processes such as volcanism and climate change occurred in the past, and have been identified as important drivers of speciation
-Tropical rain forests have been subjected to heavy logging and agricultural clearance
-existed on Earth for hundreds of millions of years.
-are on fragments of the Mesozoic era supercontinent of Gondwana types of tropical rainforests
-Lowland equatorial evergreen rain forests are forests which receive high rainfall (more than 2000 mm, or 80 inches, annually) throughout the year. These forests occur in a belt around the equator.
-Moist deciduous and semi-evergreen seasonal forests, receive high overall rainfall with a warm summer wet season and a cooler winter dry season. Some trees in these forests drop some or all of their leaves during the winter dry season.
Montane rain
Tropical forest
- ecosystem type that occurs roughly within the latitudes 28 degrees north or south of the equator
-betweeen tropic of Capricorn and tropic of cancer
-characterized in two words: warm and wet.
-monthly temperatures exceed 18 °C
-Average annual rainfall is no less than 168 cm (66 in) and can exceed 1,000 cm (390 in) although it typically lies between 175 cm (69 in) and 200 cm (79 in)
-poor soils due to leaching
-high levels of biodiversity
-Around 40% to 75% of all biotic species are indigenous to the rainforests
-home to half of all the living animal and plant species on the planet.
Two-thirds of all flowering plants can be found in rainforests
-A single hectare of rainforest may contain 42,000 different species of insect, up to 807 trees of 313 species and 1,500 species of higher plants.
-over one quarter of natural medicines have been discovered within them.
-many millions of species of plants, insects and microorganisms still undiscovered in tropical rainforests.
-most threatened ecosystems globally due to large-scale fragmentation due to human activity.
-Habitat fragmentation caused by geological processes such as volcanism and climate change occurred in the past, and have been identified as important drivers of speciation
-Tropical rain forests have been subjected to heavy logging and agricultural clearance
-existed on Earth for hundreds of millions of years.
-are on fragments of the Mesozoic era supercontinent of Gondwana types of tropical rainforests
-Lowland equatorial evergreen rain forests are forests which receive high rainfall (more than 2000 mm, or 80 inches, annually) throughout the year. These forests occur in a belt around the equator.
-Moist deciduous and semi-evergreen seasonal forests, receive high overall rainfall with a warm summer wet season and a cooler winter dry season. Some trees in these forests drop some or all of their leaves during the winter dry season.
Montane rain