Colonisation of a wasteland is the plant succession which occurs in an urban area which has been abandoned or untouched for 5 years. This form of colonisation is a form a secondary succession. Plant succession is the process in which one plant species replaces another over time which may be influenced by changes in the environment. The first plants to develop are the pioneer plants. They are able to exist in areas where there is little water, obtaining nutrients by photosynthesis and grow in places
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Ecological Succession The world around us is slowly and constantly changing. We might never see the small alterations happen, but many years later changes will surely be visible. Over time small changes add up and soon the whole ecosystem is different. This slow change in the land and habitat is called ecological succession. Animals, plants, and weather are some factors that cause this type of change in an ecosystem. Ecological succession begins with a pioneer community. In many cases lichens are
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Intermediate Disturbance Hypothesis Background Habitats and the ecological communities they support are often greatly impacted by disturbance. For example, forest communities can be disrupted by fires, blow-downs, floods, and hurricanes. Alpine plant communities can be devastated by landslides or avalanches. Marine systems such as coral reefs can be decimated by storms, ravaged by predators, or trashed by inconsiderate tourists. On a smaller scale, many habitats can be disturbed both above
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Age and EWT 1. Describe the aims, procedures, findings and conclusions of Poole and Lindsay’s (2001) study of the effects of age on EWT – science demonstration Aims- The aims of their experiment were to assess whether children were able to source monitor. Procedures- They used child participants aged 3-8 years of age. They were shown a science demonstration throughout the day; later that day their parents read them a story, which contained aspects of the science demonstration. The next day
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Topic Area | Detail & Examples | Date Reviewed | Investigations | Variables, hypothesis, graphing, conclusions | | | Physical properties | Solubility, magnetism, boiling & melting points, | | | Mixtures | Easily reversed, not chemically changed, no new sunstance, properties of componenets remain | | | Solutions | Solute, solvent, saturated solution | | | Separation techniques | | | | Chromatography | Solvent & solubility | | | Filtration | Size, dissolved
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The ecological validity of both papers should be considered similar as they both employ the same methodology. Studies on the MNS provide inconsistent results, a systematic review by Hamilton (2013) found that of twenty-five studies on the MNS found twelve studies supporting a normal MNS, six studies suggesting an abnormal system and seven studies with mixed results. The use of studies from six different methods including EEG and fMRIs, found that every method provided results both supporting the
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Plant Succession - Definition Plant Succession Definition Stages Tolerance • The orderly process of one plant community gradually or rapidly replacing another – Can result from the developmental changes in the ecosystem itself – Or from disturbances such as wind, fire, volcanic activity, insects and disease or harvesting • In a particular environment, there is a characteristic sequence of biotic communities that successively occupy and replace each other over time following disturbance Stages
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SUCCESSION Virtually all plant communities experience, from time to time, disturbances that remove all or some of the plant biomass. Thus, diversity is influenced heavily by disturbance =is the directional change in community composition and structure over time. • "begins" when a disturbance is followed by colonization or re-growth of the disturbed site by plants • Natural, gradual changes in the types of species that live in an area; can be primary or secondary • The gradual
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Making sustainability profitable Haanaes, K., D. Michael, J. Jurgens, S. Rangan. March 2013. Harvard Business Review. Vol. 91, Issue 3, Page 110—114 “We are moving to a world of scarce resources, in which companies will increasingly need to consider their total return not just on assets and equity, but on resources” ¹. Sustainability leads to innovation and effectiveness. It is hard for companies to believe that a sustainable production manner can be less expensive than a ‘quick-lowering-cost’
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generation of wealth by economic activity. Sustainable economies also need to be competitive in a world market. Products that are too expensive to buy cannot be sustainable, even if they are environmentally friendly.2 What is Environmental Ethics? An ecological conscience or moral that reflects a commitment and responsibility toward the environment, including plants and animals as well as present and future generations of people. It is oriented toward human societies living in harmony with
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