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25 Cards in this Set
- Front
- Back
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Biotic |
relating to or resulting from living organisms |
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abiotic |
physicalrather than biological not derived from living organisms |
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Stochastic event Eg |
droughts, flood, fire , famine |
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dissolution |
when a breeding pair or group of animals no longer interact with each other |
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dispersal |
movement from birthing site to their breeding site or from one breeding site to another |
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genetic variability |
the likelihood of different genetic characteristics in a population |
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continuity in time |
a habitat or population with a long uninterrupted presence |
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fecundity |
the fertility within a population |
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National legislation |
environment act 1995 wildlife and countryside act 1981 |
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international legislation |
Cites |
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National organisation |
rspb wildlife trust |
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international organisations |
icun wwf |
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divergent |
the evolution of 2 species from the same original species who adapt along different paths to utilise their environment eg arctic fox and red fox |
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convergent |
2 species of different origins which evolve along similar path e.g. dolphin Whales and sharks butterflies and bats |
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parallel |
2 species which evolve independently but maintain the same level of similarity e.g. mammoth and elephant flying mammals |
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r species |
quick breeding short lives |
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k species |
slow big gaps long living |
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boom |
increase in population |
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bust |
decrease in population |
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scale |
size of an ecosystem |
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individuals |
a living organism |
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ecological niche |
role within an ecosystem |
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deme |
newly separated subspecies |
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size |
number of inderviduals |
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form |
physical characteristics |
