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APES Ch8 vocab Lytle
Lytle - APES Ch 8 Vocab
Question | Answer |
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adaptive radiation | the process that occurs when a species enters a new habitat that has unoccupied niches and evolves into a group of new species, each adapted to one of these niches |
biogeography | The large-scale geographic pattern in the distribution of species, and the causes and history of this distribution. |
biome | A kind of ecosystem. The rain forest is an example of a biome; rain forests occur in many parts of the world but are not all connected to each other. |
biotic province | A geographical region inhabited by life forms (species, families, orders) of common ancestry, bounded by barriers that prevent the spread of the distinctive kinds of life to other regions and the immigration of foreign species into that region. |
chaparral | A dense scrubland found in areas with Mediterranean climate (a long warm, dry season and a cooler rainy season). One of the dominant ecosystems in our area. |
convergent evolution | The process by which species evolve in different places or times &, although they have different genetic heritages, develop similar external forms and structures as a result of adaptation to similar environs. For example bats and birds. |
divergent evolution | Organisms with the same ancestral genetic heritage migrate to different habitats and evolve into species with different external forms and structures, but typically continue to use the same kinds of habitats. For example, the ostrich and the emu. |
ecological island | An area that is biologically isolated so that a species occuring within the area cannot mix (or only rarely mixes) with any other population of the same species. |
exotic species | Species introduces into a new area, one in which it had not evolved. Not necessarily an invasive species, but all invasives are exotic. |
realms (ecological) | Major biogeographic regions of Earth in which most animals have some common genetic heritage. |
taiga | Forest of cold climates of high latitudes and high altitudes, also known as boreal forest. |
taxa | Categories that identify groups of living organisms based on evolutionary relationships or similarity of characters. |
tundra | The treeless land area in alpine and arctic areas characterized by plants of low stature and including bare areas without any plants and areas covered with lichens, mosses, grasses, sedges, and small flowering pants, including low shrubs. |