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Definition
| The scientific study of interactions between organisms and their environment |
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Definition
| Any organism that survives by preying on other organisms |
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Definition
| An animal hunted or seized for prey |
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Definition
| An organism that vies or competes for food |
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Definition
| A relationship between two organisms of different species in which both benefit from the association |
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Definition
| Consists of all the individuals of a species in a given area |
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Definition
| All organisms in the same area |
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Definition
| All organisms in an area plus their physical environment |
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Definition
| All regions of the planet where organisms live |
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| Techniques to determine population density |
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Definition
| Individual markings, banding, tagging, radio transmitters, hydrogen isotopes, full census, sampling, |
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| Why are Life Histories important? |
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Definition
| How organisms allocate time and energy |
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| Plant example of a Life History |
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Definition
| Agave: use energy stored from longevity to flower once, then die. |
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| Animal example of a Life History |
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Definition
| Salmon: Most of life is spent in the ocean, then they return to the tributary where they were born to spawn. |
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| 4 Main Factors Affecting Population Density |
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Definition
1. Abundant Resources
2. Size of Individuals
3. Length of time a species has lived in an area
4. Complex Social Organization |
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Term
| Population Control in Georges Banks fishing |
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Definition
| Fishing was stopped to allow population to recover from over-fishing |
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| Population management for Whaling |
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Definition
| Whaling is outlawed, lack of a market for whale meat may cause a demise for commercial whaling. |
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| Population management for toads in Australia |
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Definition
| Introduced to control Cane Beetles in sugar cane fields. Couldn't reach the beetles. Have become an ecological disaster for other species. Poisonous, reproduce quickly, outcompete native amphibians. |
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