Term
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Definition
| Carbon exchange through biosphere, pedosphere, lithosphere, hydrosphere, atmosphere |
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Term
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Definition
| Growth is controlled by the scarcest resource or limit factor not the total amount available |
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Term
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Definition
| amount a molecule specds in a specific reservoir in the biogeochem cycle |
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Term
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Definition
| Provides nutrients, bids soil particles, reduces erosion, helps soil hold water |
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Term
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Definition
| Any US citizen who finds a guano deposit must hand it over to US gov. Used as fertilizer |
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Term
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Definition
| increase in global food production in 1950 and up due to crop breeding, fertilizer, and pesticide advances |
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Term
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Definition
| When plants are exposed to too much nitrogen, interferes with ability to take in water |
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Term
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Definition
| Rapid increase or accumulation of algae within an aquatic system |
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Term
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Definition
| Low oxygen areas caused by excessive nutrient pollution |
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Term
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Definition
| Most common form of phosphorus PO4 |
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Term
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Definition
| The processes that break down rock, minerals, and soils through contact with atmosphere, biota, and water |
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Term
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Definition
| low oxygen conditions formed by excess nutrients |
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Term
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Definition
| set of several species that are adapted to their particular environment |
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Term
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Definition
| Groups of actually or potentially interbreeding natural populations, reproductively isolated from other such groups. |
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Term
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Definition
| geographical area where a species can be found |
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Term
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Definition
| Have had behavior, life cycle, or physiology altered by being under human control for many generations |
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Term
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Definition
| process of breeding plants and animals for particular adaptive traits. |
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Term
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Definition
| all organisms of the same species who live in the same geographical area. |
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Term
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Definition
| reflects number of individuals in a specials within a unit area. |
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Term
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Definition
| Low range of environmental tolerance |
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Term
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Definition
| High range of environmental tolerance |
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Term
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Definition
| shared by members of a species and allows interaction through interbreeding |
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Term
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Definition
| complete range of environmental conditions that are sutiable for a species, without considering the effects of either competition or predation |
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Term
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Definition
| part of fundamental niche actually occupied by the species |
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Term
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Definition
| Eat a very restricted variety of food ex. blue whale, koala |
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Term
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Definition
| Consume a variety of several different organism ex. humans, grizzly bear |
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Term
| 4 Characteristics of Stenophagous Orgs |
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Definition
1) Focus on best food
2) Obtain high return on energy
3) limited comp with other orgs
4) difficulty finding food |
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Term
| 2 characteristis of Euryphagous Orgs |
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Definition
1) Not tied to a single location that supports food
2) May not eat food that is very nutritious |
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Term
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Definition
| Biological interaction where a predator feeds on its prey |
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Term
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Definition
| Study changes in size and age comp of populations and the bio and environ processes that influence the changes. |
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Term
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Definition
| when output of systems acts to oppose changes to input of system |
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Term
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Definition
| Predators with no predators of their own |
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Term
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Definition
| has disproportionately large effect on its environment relative to its abundance. |
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Term
| 2nd law of thermodynamics |
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Definition
| the entropy of an isolated system never decreases because isolated systems evolve toward thermodynamic equilibrium |
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Term
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Definition
| temporary events that causes a major change in the structure of an ecosystem. |
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Term
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Definition
| the process where one group of pants and animals is replaced by another. |
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Term
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Definition
| the process in biology by which a species spreads into new areas, regions, and continents. |
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Term
| 4 Characteristics of Pioneer Species |
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Definition
1) High growth rate
2) small size
3) High degree of dispersal
4) rapid pop growth |
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Term
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Definition
| growth of plants at a location that has never been previously colonized |
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Term
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Definition
| Occurs after plant life on a colonized surgace is affeceted by a disturbance. |
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Term
| Characteristics of Late Successional Species |
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Definition
1) Slow growth rate
2) large sizes
3) low rates of dispersal
4) slow population growth |
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Term
| 4 ways plants modify their abiotic environ |
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Definition
create shade
add nutrients to soil
reduce temp extremes
increase humidity |
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Term
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Definition
| When species interfere directly with others attempting to forage, reproduce or establish themselves within a habitat. |
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Term
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Definition
| Negative interaction that occurs whenever the fitness of one organism is reduced because of the presence of another |
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Term
| Intraspecific Competition |
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Definition
| When members of the same species vie for the same resource in an ecosystem (food,water,light0 |
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Term
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Definition
| When organisms interfere directly with others attempting to forage, reproduce or establish themselves within a habitat. |
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Term
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Definition
| when individuals interfere indirectly by consuming scarce resources, making them less available to other individuals |
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Term
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Definition
| Defend social/geographic area against other organisms that are a member of their own species |
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Term
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Definition
| how many individuals of a particular organism can be supported by a specific habitat |
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Term
| Interspecific competition |
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Definition
| When members of a different species vie for the same resource in an ecosystem |
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Term
| Major 5 domestic herbivores |
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Definition
| goat, pig, horse, cow, sheep |
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Term
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Definition
| refers to species whose evolutionary process has been influenced by humans to meet human needs. |
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