be fulfilled while maintaining cultural integrity‚ essential ecological processes‚ biological diversity and life support systems." (World Tourism Organization)[29] Sustainable development implies "meeting the needs of the present without compromising the ability of future generations to meet their own needs." (World Commission on Environment and Development‚ 1987)[30] Sustainable tourism can be seen as having regard to ecological and socio-cultural carrying capacities and includes involving
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be actually just as unpalatable as the monarch‚ making this a case of Müllerian mimicry; because when two or more unpalatable species resemble each other. 4. Explain the Competitive Exclusion Principle and how it relates to the concept of the ecological niche. Animals that have the same niche will end up competing for the niche because the competitive exclusion
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ECOLOGICAL SUCCESSION "Ecological succession" is the observed process of change in the species structure of an ecological community over time. Within any community some species may become less abundant over some time interval‚ or they may even vanish from the ecosystem altogether. Similarly‚ over some time interval‚ other species within the community may become more abundant‚ or new species may even invade into the community from adjacent ecosystems. This observed change over time in what is living
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Discuss the ways in which distinctive ecologies can develop along routeways (10 marks) Routeways such as roads‚ railways and canals can provide habitats for many species of plant and insect life because they often act as protected areas in which ecological succession can occur. There are several ways in which this can happen. One way in which ecologies can develop along routeways is that plant seeds‚ e.g. Oxford ragwort or buddleia‚ that have become windborne can be transported along by cars or trains
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be discussed in terms of economic aspect‚ it will reveal some limitations of GDP measurement such as exclusion of some economic activities (the costs of crime‚ growth of prisoners). In the next step‚ it will be examined from an environmental and ecological perspective and demonstrate some benefits for environment as well as preventing water scarcity with developed technology‚ some drawbacks for mankind such as air pollution and degradation of environment. In conclusion‚ on the basis of mentioned evidences
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generalizability: To what populations‚ settings‚ treatment variables‚ and measurement variables can this effect be generalized? (www.experiment-resources.com) usually‚ external validity is split into two distinct types‚ population validity and ecological validity‚ both are essential in determining the strength within an experimental design. There are four different types of replications. 1. Exact replications;
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Primary Succession Primary Succession is an ecological succession process that occurs in an environment with no prior inhabitants. Primary succession is the changes in species composition over time in a previously uninhabited environment. When primary succession begins no soil exist; rock surfaces like volcanic lava and glacier scraped rock surfaces are the platform on which primary succession begins. In figure 4.4 of the text Primary succession is happening on glacier moraine after the glacier
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GLOBAL DEVELOPMENT AND ENVIRONMENT INSTITUTE WORKING PAPER 00-04 Basic Principles of Sustainable Development Jonathan M. Harris June 2000 Tufts University Medford MA 02155‚ USA http://ase.tufts.edu/gdae © Copyright 2000 Global Development and Environment Institute‚ Tufts University G-DAE Working Paper No. 00-04: “Basic Principles of Sustainable Development” Basic Principles of Sustainable Development 1 Jonathan M. Harris jonathan.harris@tufts.edu 1. The Concept of Development
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Bronfenbrenner’s Ecological Theory and Family Ecological Model can be used to talk about alcohol and substance abusing parents and their children to demonstrate the bi-directional influences between the parent’s alcohol or substance abuse and the system’s in the family’s environment. This theory views families and their surroundings as a family ecosystem in which the family or an individual are influenced by the “systems” in that environment and the family or individual’s interactions with the systems
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appropriate EBM is to manage human and ecological systems. Aspects of Environmental Based Management It is critical that every entity in its own billing strives to think about their immediate ecosystem in coming up with management policies (Sheldon & Yoxon‚ 2006). It is these factors that led to the formulation of the six aspects of environment based management which continue to guide the relationship that exists in having the ecosystems together. Integration of ecological‚ social and economic goals and
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