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25 Cards in this Set
- Front
- Back
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What is best used to predict what kind of ecological community would be present on a certain piece of land ? |
Mean temperature or mean rainfall |
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What 2 things drive global air circulation and precipitation patterns ? |
Solar energy and temperature |
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Desserts occur around the earth at mid latitudes 20-30° because... |
At these latitudes dry high altitude air is descending so it rarely rains |
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Nz do not have tropical forest biomes because... |
New Zealand is well south of the tropic of Capricorn, local mean annual temperatures are to low for tropical forest ?? |
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Brown mud fish live exclusively in pools with low pH and low oxygen and drying out frequently because... |
Banded kokopu are superior competitors and exclude the mud fish from less stressful pools |
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European kestrels that had extra eggs put in their nest reared more chick's but had lower survival rates over winter this shows ... |
There is trade off between adult energy devoted to reproduction and adult energy devoted to adult survival. They can also successfully rear more chick's then they usually do |
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Bring ground squirrel females live longer than males. Why is this ? |
Ales bite claw and attack each other when the females are ready to mate |
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Possums are best described as ? |
Omnivores |
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Tawa nz forest tree suffers occasional wide spread damage during frosty weather. Which statements are true ? Tawa more frost sensitive then other competing trees so ocassional frost stops Tawa excluding the other species Tawas sensitivity to frosts explains why it doesn't grow in kaikoura Global warming is likely to have strong effects on geographic range of tawa |
All of the above |
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Population regulations always involve... |
A density dependent feedback mechanism that slows population growth at high densities |
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Parasitoid eggs hatch out and eats the prey from the inside out eventually killing it. |
The movie alien was inspired by a real life vertibratw parasitoid which preys on anteaters |
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The 4 trapping plants have evolved to kill and digest insect prey. What Is the main benefit that predation gives these plants ? |
The plant gets nitrogen which is in short sully in the habitats these plans live in |
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Community structure is strongly affected by the actions of species? One possible type is key tone species what best defines this ? |
A species that has a very large influence in the county relative to its biomass |
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What takes longer. Secondary succession or primary ? |
Primary succession |
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In hinewai reserve the climax community is the goal of the reserve manages because the early succession al community... |
Includes many exotic weeds like gorse and broom, is highly flammable so difficult to keep fire excluded |
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A deers herbivorous diet indicated that it is a |
Primary consumer |
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To recycle nutrients the minimum an ecosystem must have is .. |
Producers and decomposers |
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Subtraction of what will covert gross primary productivity into net primary productivity ? |
The energy used by heterotrophs on respiration |
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What do detritivores do ? |
Convert organic materials from all tropic levels to inorganic compunds usable by primary producers |
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How does phosphorus enter the ecosystem ? |
By rock weathering |
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High levels of pesticides found in birds of prey is an example of... |
Biological magnification |
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What does it mean when a species is endemic to a certain area ? |
It is only found in one particular area of the world |
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The greatest cause of the biodiversity crisis is |
Habitat destruction |
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Which animal has not successfully naturalised in nz ? |
Ring tailed possums |
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The introduction of rodents and mustelids to nz has resulted in... |
The extinction of many nz endemic birds and reptile species |
