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ecosystems and biome
| Term | Definition |
|---|---|
| Ecosystems | All living things plants and animals- and the nonliving things in a place. |
| Abiotic | Non-living parts of an ecosystem (sunlight, water, climate, soil) |
| Biotic | Living organisms in an ecosystem |
| Population | All members of one species that live together in a place at the same time. |
| Community | All populations living together in a certain area |
| Habitat | Place and surroundings where an organism normally lives or environment in which an organism lives. |
| Species | Group of similar organisms whose members can mate among themselves and produce fertile offspring. |
| Limiting Factors | A factor that prevents the continuing growth of a population. (food, shelter, space) |
| Carrying Capacity | Maximum size a population can reach in an ecosystem |
| Niche | The role an organism plays in its environment. |
| Tropical Rain Forest | Home to more species than all other biomes combined. The leafy tops of tall trees, extending from 50 to 80 meters above the forest floor, form a dense covering called a canopy. In the shade below the canopy, a second layer of shorter trees and vines forms |
| Tropical Savanna | Receiving more seasonal rainfall than deserts but less than forests, tropical savannas are spotted with isolated trees and shrubs. |
| Desert | Dry, desert biome is defined as having annual precipitation of less than 25 centimeters. Many undergo extreme temperature cahnges during the course of the day, alternating between hot and cold. |
| Temperate Grassland | Rich mix of grasses and under laid by some of the world's most fertile soils, temperate grasslands, such as plains and prairies. |
| Temperate Forest | Mixture of deciduous and coniferous trees, or conifers produce seed bearing cones, and most have leavesshaped like needles. Have cold winters that halt plant growth for several months. |
| Coniferous Forest | Mild, moist air from the Pacific Ocean provides abundant rainfall to this biome. The forest is made up of a variety of conifers, ranging from giant redwoods along the coast of Northern Cali to spruce, fir, and hemlock farther North. |
| Tundra | Permafrost, a layer of permentaly frozen sunsoil. During the short, cool summer, the ground thaws to a depth of a few centimeters and becomes soggy and wet. In winter, the topsoil freezes again. |
| Taiga | Along the Northern edge of the temperate zone are dense evergreen forests of coniferous trees. These biomes are called boreal forests or taiga. Winter are bitterly cold, but summers are mild and long enough to allow the ground to thaw. |
| BIOSPHERE | Refers to all life on Earth |
| BIOMES | Large geographical area Distinct plant and animal groups Adapted to particular environment Climate and geography of region determine |
| SALTWATER BIOME | Oceans and bodies of water containing salt |
| FRESHWATER BIOME | Rivers, Streams and Lakes |
| Biodiversity | the variety of life on earth, reflected in the variety of ecosystems and species, their processes and interactions and the genetic variation within and among species. |
| extinct | a species that no longer exists |
| genetic diversity | the genetic variation present in a population or species |
| habitat loss | the destruction, degradation, and fragmentation of habitats; primary cause of biodiversity loss |
| introduced species | and organisms that has been brought into an area where it does not occur naturally. |
| invasive species | an organism that has been brought into or spread into an area where it does not occur naturally |
| native species | a species that occurs naturally in an area or habitat |
| sustainable | How biological systems remain diverse, productive and balanced over time |
| trait | a genetic feature or characteristic, such as hair color or blood type, that may be passed on from one generation to the next |
| migration | the movement of animals in response to seasonal changes or changes in the food supply |
| Succession | Natural, gradual changes in the organisms living in an area |
| Primary Succession | Succession that begins without soil. The first time succession happens. After lava hardens or a flood has washed away all the soil and left bare rock. |
| Secondary Succession | Succession that happens when soil is already present. After forest fires and floods where soil is left, and a field |
| Climax Community | Nature's "happy place". When nature is at a stable, balanced equilibrium. |
| Pioneer Species | The first species to settle an area. If no soil present, must be lichens or moss |
Created by:
KallyEvans
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