Term
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Definition
| Study populations of animals and/or plants using field experiments |
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Term
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Definition
| Aree groups of individuals of the same species in an area |
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Term
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Definition
| Methods used to estimate abundance and distribution |
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Term
| What are some sampling techniques? |
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Definition
| Counting,quadrats,transect and capture-recapture |
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Term
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Definition
| Used for organisms that don't move |
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Term
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Definition
| Defined areas to be sampled so that populations can be estimated, are placed in random areas. Usually 1m x 1m. |
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Term
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Definition
| Are lines along which organisms are counted in order to estimate population size |
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Term
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Definition
| Used for highly mobile organisms. The steps include; capture a sample of target organisms, mark the animals in some way, after some time capture the came size sample and count the number of tagged and untagged organisms. |
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Term
| Capture-recapture formula |
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Definition
number captured X number recaptured
by number of tagged animals recapture |
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Term
| One population in explosion |
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Definition
| Crown of thorns starfish (acanthaster planci) |
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Term
| Where does the crown of thorns starfish live and what does it eat? |
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Definition
| It lives in the Great barrier reef and eats live coral |
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Term
| What is one special adaptation of the crown of thorns starfish that protects it from being eaten? |
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Definition
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Term
| What is one reason for the population explosion of the crown of thorns starfish? |
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Definition
| Higher levels of nutrients, the more phytoplankton grow, which is the food for crown of thorns starfish larvae |
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Term
| What effect is the crown of thorns starfish having on its ecosystem? |
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Definition
| The starfish is eating all the coral |
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