4.2 What role do species play in ecosystem

Ecologist further classify organisms based on the impact their behavior has on maintaining healthy ecosystems ( ​ (a)   ), and what their presence may indicate about environmental conditions within ecosystems ( ​ (b)   ).

• keystone species
• indicator species

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Which is referred to as an alien species?

• Native

• Nonnative

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Nonnative species may be referred to as:

• alien species

• exotic species

• invasive

• all of these

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NGSS.MS-LS2-5

Which is a nonnative species of Florida

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• 
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NGSS.MS-ESS3-4

Which is an invasive species of Virginia

• 
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• 
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Brazil imported ​ (a)   in order to breed them with the native honeybee.

The hope was to create a honeybee that could better survive ​ (b)   , which in turn increase ​ (c)   . The opposite occurred. The more aggressive African bees ​ (d)   some of the Native Brazilian honeybee population, which led to a ​ (e)   honey supply.

• Wild African honeybees
• Brazil's warm climate
• honey production
• displaced
• reduced

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NGSS.MS-LS2-4

NGSS.MS-LS2-5

• Kudzu causes these problems in Virginia:

• Loss of biodiversity

  Kudzu can ​ (a)   native plants and trees, which can lead to a loss of biodiversity and species extinctions. 

• Damage to infrastructure

  Kudzu can grow so heavy that it can ​ (b)   , uproot trees, and crush buildings. 

• Food chain disruption

  Kudzu can ​ (c)   native trees and brushes, which can deprive native plant eaters of food

• Native

• Invasive

• outcompete
• break utility poles
• eliminate

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NGSS.MS-LS2-4

NGSS.MS-LS2-5

match the niche of the following aquatic animals

• Avocet

• Tireless scavenger

• DoWitcher

• probes deeply into the mud searching for snails, marine worms and crustaceans

• Flamingo

• feeds on small organisms in the mud

• Herring

• sweeps bill through mud and surface water looking for crustaceans, seeds and insects

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