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level: Changing ecosystems

Questions and Answers List

level questions: Changing ecosystems

QuestionAnswer
Define 'pioneer species'Pioneer species are the first organisms to colonize and establish themselves in a newly formed or disturbed habitat, typically characterized by harsh environmental conditions such as bare rock, volcanic lava, or abandoned land after a natural disaster.
Define 'climax communities'Climax communities are stable, self-sustaining communities of plants and animals that have reached the final stage of ecological succession in a given habitat, and are in equilibrium with the prevailing environmental conditions, including climate, soil type, and water availability.
What are the key features of 'pioneer species'The ability to fixate nitrogen, tolerance to extreme conditions, rapid germination of seeds, ability to photosynthesise.
Define 'secondary succession'.Secondary succession is the process by which an ecosystem regenerates and reestablishes itself after a disturbance that has removed or significantly altered the original vegetation cover but has not completely destroyed the soil or the seed bank.
Define 'temporal succession'Temporal succession is the process of species composition changes over time due to natural or human disturbances, resulting in pioneer and climax communities.
Define 'primary succession'The process of ecological succession that occurs on newly formed or exposed land that has no previous soil, such as a lava flow or bare rock, and involves the gradual colonization of pioneer species and the development of soil over time.
Define 'spatial succession'The process of ecological succession occurring at different locations or patches within a landscape, as opposed to over time in a single location.
Define 'biomass'Material that come from living organisms such as plants an animals. (eg. wood, plants etc.)