Ecosystems

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What is a Biome?
It is an area with distinctive climate and vegetation, they cover a large area and can contain a variety of different ecosystems.
1 of 10
What percentage of sunlight is actually used in photosynthesis?
less than 50%. Some will fall on to areas of the plant that don't photosynthesise (trunk/stem) and plants can only use certain wavelengths of light.
2 of 10
A few sections of Heather are burned each year in how long of a rotation?
8-15 years
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What are the pioneer species that first colonize the bare sand in succession of a Psammosere?
Lyme Grass and Marram Grass- these have a high salt tolerance.
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What is the monthly temperature range of tropical equatorial rainforests?
20-28 degrees
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Why are animals such as the Jaguar and Sloth nocturnal in the tropical rain forest?
because its cooler during the night so they can save energy when hunting
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Deforestation reduces biodiversity. In Brazil in 1989 there were 218 species classed as endangered. What was this number in 2008?
628
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Ecotourism brings about US$1.6 million a year to Costa Rica. As a result of this what percentage of the country is now protected from development?
25%
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In Peru how many jobs does gold mining in the Amazon create?
50,000
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Deforestation can be managed by replanting trees to replace old ones and by?
Selective logging, which is only felling some trees, such as old ones.
10 of 10

Other cards in this set

Card 2

Front

What percentage of sunlight is actually used in photosynthesis?

Back

less than 50%. Some will fall on to areas of the plant that don't photosynthesise (trunk/stem) and plants can only use certain wavelengths of light.

Card 3

Front

A few sections of Heather are burned each year in how long of a rotation?

Back

Preview of the front of card 3

Card 4

Front

What are the pioneer species that first colonize the bare sand in succession of a Psammosere?

Back

Preview of the front of card 4

Card 5

Front

What is the monthly temperature range of tropical equatorial rainforests?

Back

Preview of the front of card 5
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