Ecology Chp4 .1

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Have broad niches. They can live in many different places, eat a variety of foods, and often tolerate a wide range of environmental conditions

Generalist Species
Occupy narrow niches. They may be able to live in only one type of habitat, use one or few types of food, or tolerate a narrow range of climatic and other environmental conditions.

Specialist species
The way scientist describe the role that a species plays in it's ecosystem. It is a species way of life in a community and includes everything that affects its survival and reproduction. (Pattern of living)

Ecological niche or niche
Species that provide early warnings of damage to a community or an ecosystem

Indicator Species
List the reasons why cockroaches are nature'a ultimate survivors.
- - Because they are generalist
- - They can also live and bread almost anywhere except in popular religions
- - Can eat almost anything
- - Can go for a month without food and water
- - Can evade their predators
Those species that normally live and thrive in a particular ecosystem

Native species
Other species that migrate into or deliberately or accidentally introduced into an ecosystem

Nonnative Species
1) Identify and describe the 2 features that affect an island's immigration and extinction rates.

The islands size. Small islands tend to have fewer species than large islands do because they make smaller targets for potential colonizers flying or floating toward them
2) Identify and describe the 2 features that affect an island's immigration and extinction rates.

2) Identify and describe the 2 features that affect an island's immigration and extinction rates.

An island'a distance from the nearest mainland. According to the model, the island closer to a mainland source of immigrant species should have the higher immigration rate and thus a higher species richness.
Give examples of how nonnative species can affect an ecosystem

Brazil imported wild African bees to help increase honey production. Instead, the bees displaced honey bees and revealed the honey supply. Can spread rapidly if they find a new more favorable niche

Author

hey_itsdarra

246015

Card Set

Ecology Chp4 .1

Description

2nd 9 weeks

Updated

2013-11-11T03:59:15Z