Term
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Definition
| A species that estabilshes a new range in which it proliferates, spreads, and persists to the detriment of the environment |
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Term
| Four Types of Invasive Species |
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Definition
| Plants, Vertebrates, Invertebrates, Microbes |
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Term
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Definition
| Something Found No Where Else on Earth |
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Term
| 2 examples of endemic species |
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Definition
| Hawaiian silver sword, Non-Flying Butterflies |
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Term
| Characteristics of Invasive Species (8) |
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Definition
| 1. No predators of invasive species 2. Large number of young. 3. Rapid Reproductivity. 4. Generalists in food/supply 5. Tolerant of Disturbance. 6. Rapid Growth 7. Dispersal 8. Allelopathy - toxins released from plants |
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Term
| Characteristics of Vulnerable Communities (4) |
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Definition
| 1. Open Niches 2. Frequent Disturbances 3. Abundant Resources 4. Soil |
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Term
| New theory on plant invasions |
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Definition
| a plant community becomes more susceptible to invasion when there is an increase in unused resources |
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Term
| Ants on Infested Sites compared to Uninfested (4) |
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Definition
| 1. High Richness. 2. High Diversity 3. High Native Ants 4. Low number of ants |
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Term
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Definition
| the change in species that occupy a given area, with some species invading and becoming more numerous while others decline in population and disappear. |
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Term
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Definition
| a change in one or more abiotic or biotic factors benefiting some species but at the expense of others |
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Term
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Definition
| The establishment of a mature ecosystem in an area that has not been occupied before. |
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Term
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Definition
| The reestablishment of an ecosystem that was previously cleared. |
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Term
| Why is secondary growth faster? |
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Definition
| Soil is already formed and there are plants that survived disturbance. |
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Term
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Definition
| 1. Pioneer Species (Withstand High Levels of Light). 2. Periannial Weeds and Grasses (Withstand Low Nutrients). 3. Shrubs (Withstand Shade). 4. Young Pines. 5. Mature Forest (Withstand Competition). |
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Term
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Definition
| Grasses resprout quickly from bottom |
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Term
| Long leaf pine forest exposed to Fire |
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Definition
| Serotinous cones open only when exposed to high temperatures |
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Term
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Definition
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Term
| Reasons for Population Growth |
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Definition
| 1. Expansion into new habitats 2. Increase carrying capacity of current habitats 3. Elimination of limiting factors (Texas) |
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Term
| 2 Methods of Human Population Control |
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Definition
| Control through Economics and Control through Family Planning |
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Term
| Demographic Transition Model |
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Definition
| Death rates decline during the early industrial stages while birth rates decline in late industrial stage. Goes through late exponential growth during postindustrial stage. |
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Term
| Control of human population through family planning |
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Definition
| Tax incentives and birth control widely available. |
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Term
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Definition
| 2.6x more production of agriculture |
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Term
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Definition
| Underground layer of porous stone or soil that holds water. the function is to bring marginal land into use |
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Term
| Problems with Green Revolution (6) |
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Definition
| 1. Water Shortages 2. Decreased Genetic Diversity 3. Degredation of Marginalized land 4. Desertification 5. Fertilizer run off 6. Increased pesticide pollution |
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Term
| Example of Water Shortage |
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Definition
| Ogallala Aquifer Depletion 8x the recharge rate |
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Term
| Example of Decreased Genetic Diversity |
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Definition
| Multiple types of corn -> 1-2 types of corn |
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Term
| Degredation of Marginal Land |
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Definition
| Quickly depleting soil nutrients or erosion |
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Term
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Definition
| Creating deserts where there were none before |
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Term
| Result of Fertilization run off |
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Definition
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Term
| Stages in making a genetically modified plant (4) |
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Definition
| 1. Bt Toxin implanted into Cell DNA -> 2. Cells tested with antibiotic to find which successfully incorporated the new material -> 3. Those that are resistant to the antibiotic carry the Bt toxin ->4. Seeds from those plants will grow a new generation of plants with Bt Toxin. |
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Term
| Examples of Transgenic Foods |
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Definition
| 1. Bt Toxin in Corn 2. Round-Up Ready Crops 3. Golden Rice 4. Flavr Savr Tomato |
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Term
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Definition
| Interferes with insects digestion |
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Term
| Integrated Pest Management |
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Definition
| Using pesticides in a more controlled way. |
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