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-Typically how much energy is available from the sun, the closer the equator the more energy. -Availability of key nutrients (water, nitrogen, etc.) -Can not be productive of both of these factors. |
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-Scottish Born -Founded the Sierra Club -Helped in getting the natrual park bill of 1899 passed, which included protecting Yellowstone and Yosemite NP's -Seen as father of national parks in US |
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-The ecological role and space that organism occupies in an ecosystem. -The place where the organism lives within the environment in relation to ecological gradients. -The roles that an organism plays (providing shelter) food source, primary producer etc.) |
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5 Aspects of Habitat (Abiotic and Biotic) |
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Food, water, thermal cover, escape cover, and, space. |
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Top down control of ecosystem |
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Where an organism at the top of the food chain determines ecosystem structure and function. |
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-Biologist, naturalist, conservationist -Concentrated on conserving buffalo -Co founded Boone-Crocket club with Roosevelt -Helped establish final refuge for buffalo in Yellowstone |
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Ecosystem Community Species Evolutionary Significant Unit Individuals Genes |
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Before Fisheries and Wildlife Management |
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-Over-harvesting -Habitat Destruction -No Application of Science -Uncertainty over ownership "Tragedy of the commons" |
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The art and science of manipulating biota, habitat, or human users to produce a desired endpoint |
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A systematic process for continually improving management policies and practices by learning from the outcomes of operational programs. |
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Principal Threats To Biodiversity |
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-Habitat Loss 36% -Introduced Species 34% -Hunting 23% -Other 2% |
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Observation Question Hypothesis Prediction Test or Experiment |
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The effective management and use of natural resources. |
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The study of the relationships between organisms and their enviorments. (including either organisms) |
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Author, Ecologist, Forester, and Environmentalist The Father of modern wildlife based on sound scientific management of habitat. |
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The Competitive Exclusion Principle |
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Definition
No two organisms can occupy the same space in an ecosystem at the same time. |
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Definition
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Loss of good nesting habitat. |
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Bottom up control of ecosystems |
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Definition
Where an organism low in the food chain controls ecosystem structure and function. |
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Doubled the national parks from 5-10. Increased national forests from 40-200 million acres. Signed the P-R act. |
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-Biota (Fish) -Habitat -Human Users |
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Non domesticated animals harvested for recreational purposes. |
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Definition
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Term
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A. Use value (direct value of use) B. Functional Value - Wetland improvment of water quality (still assign $) C. Non - Use Values Including... I Option value ( value for future used by individuals) II Existence value (to know it remains on the planet) III Bequest value (one day this will all be yours) |
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The Place where an organism lives. |
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1. Food 2. Water 3. Thermal Cover 4. Escape Cover 5. Space |
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A relationship between two organisms where on derives benefit at a cost to the other. |
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A biological interaction between two or more species where both benefit. |
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Definition
A biological interaction between two or more species where on species benefits and there is no cost to the other. |
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Definition
The area within which an individual typically travels in its daily activities. (Characteristic within vertebrates, can change during the year) |
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An area (typically with a home range) that an individual will defend from others of its land. |
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The spatial distribution of individuals within a population. |
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Definition
-Life-history characteristics -Habitat -Trophic Position -Geographic Range |
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Definition
Competition occurs when two or more organisms living in the same environment/area have over lapping niche requirements. |
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Interspecific Competition |
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Definition
Competition between or among different species. (wolves vs. coyotes) |
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Intraspecific Competition |
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Definition
Competition within species. (wolves vs. wolves) |
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Species Interactions (5 factors) |
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Definition
-Predation -Competition -Parasitism -Mutualism -Commensalism |
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The niche occupied by an organism without competition. |
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The tendency for species that live in the same area and require similar resources to differ along one ore more dimensions of a niche. |
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The niche occupied by an organism with competition. |
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Definition
A species introduced by us to a new area. |
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A species that expands its range due to human - induced habitat change. |
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Definition
Controlling an invasive species by introducing a biological predator. |
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Definition
Species will only be found within the ecological minimums and maximums they can withstand. |
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Limiting Factors / Resources |
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Definition
A single component of habitat that limits population growth. (ex. Wolverine = needs space, Tern = exclusive nesting) |
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