BIOL 1104: Unit 2
40 Cards in this Set
Front | Back |
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Biodiversity
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The variety in life
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Genetic diversity
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The diversity of genetic characterists within a species
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Species Diversity
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The number, and density of number of a species, in a given area
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Ecosystem Diversity
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The diversity of ecological processes, habitats and communities
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Hypothesis
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A testable statement about something you think is occurring in the natural world- IF
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Test
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The methods of your experiment - And
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Expectation
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Is a statement about what you expect your data to look like if your hypothesis is correct. - Then
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Biotic
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The living componets of an ecosystem
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Abiotic
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The non-living componetns of an ecosystem
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Individualistic
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A chance assemblage of different species occurs in a location because of similar abiotic requirements or limitations
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Interactive
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Closely linked species joined by a mandatory biotic interactino and therefore must live together
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Trophic levels
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Levels in an ecosystem compirsed of organisms that share the same function in the food chain and the same nutritional relationhship to the primary sources of energy
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What are the differnt names in the Basic Trophic Pyramid?
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Abiotic Factors, Primary Producers, Herbivores, Small Carnivores, Large Carnivores.
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Ecosstems
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Are made up of different species and popoulations, interactions between bitoic factors, all abitioic factors, interactinos of between abiotic factors and interactions between biotic and abiotic factors in a specific area.
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Communities
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Are made up of the biotic factors in an ecosystem and interactions between them
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Intraspecfic
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Interactions between the same species
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Interspecfic
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Interactions between differnt species
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Commensalism
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Occurs when one organism benefits from the relationshiop and the other is not harmed.
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Mutualism
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Both parties benefit from the relationship.
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Parasitism
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Beneficial to one species and detrimental to the other
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Predation
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When one animal is highly benefited and the other animal gets highly detrimental affects (usually death)
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Herbivory
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When an animal feeds on a plant
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Competition
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When two species compete to obtain the same limited resource at the same time preventing the coexistance of both species.
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Niche
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(ecology) the status of an organism within its environment and community (affecting its survival as a species)
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Fundamental Niche
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The full potential range of the physical, chemical, and biological factors a species can use if there is no competition from other species. Can live.
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Realized Niche
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Part of a species fundamental niche that it actually uses, limited by competition. Does live.
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Keystone species
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Species that have a larger effect on their enviroment compared to other specis in their community.
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Autotrophs
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Produce their own food from solar energy
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Chemotrophs
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Produce their own food from chemical energy
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Heterotrophs
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Obtain food by eating other organisms or decaying matter
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What are major threats to biodiversity
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Invasive Species, Land use changes, OVerexploitation, Climate change.
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Native Species
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A species that originated in or migrated to a region as a result of natural processes. A species that developed, occurs naturally, or has existed in an area for many years
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Exotic/non-native species
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A species that is living outside of its native range that has arrived there due to human activity. They can have a neutral, beneficial or negative effect
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Habitat loss can occur due to:
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Urbanization, Resources exraction, Water projects, Mining, Deforestation, Pollution,climate change
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Edge effects
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Influences of adjacent habitat on edge habitat, resulting in an enviromental difference betweeen the edge and the interior
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Invasive species
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When a species cause the lost of another species. Reproduce quickly
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Edge
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The portion of an ecosystem near its perimeter
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Direct use of good values
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Food, Fiber, Fuel, Medicine, Building material
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Indirect use vaule
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Atmospheric and climate regulation, Pollination, Cultural, Spiritual,
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Non-Use Values
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Potential
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