Paloma Castro October 2‚ 2012 ESS II Conversation Biology: * Conservation biology is the scientific study of the nature and status of Earth’s biodiversity with the aim of protecting species‚ their habitats‚ and ecosystems from excessive rates of extinction and the erosion of biotic interactions. * Using natural capital sustainably protecting biodiversity * Anthropocentric view—humans are there to preserve nature Preservation Biology: * Attempts to exclude human activities
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Animals and Plants Extinctions causes and effects on human Nowadays ‚ animal extinction is a broad issue‚ one that involves the habitats and environments where other species live and interact with one another . Only a minority of people are concerned with extinction in today痴 society‚ while others might argue that it is a small problem because we are beyond the point of evolution and thus don’t really need to rely on other animals at all. According to statistics of scientific research
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forest or woodland should have a diversity index of 0.7. An area that is not very diverse‚ like a cornfield‚ might have a diversity index of 0.02 or less. In this investigation‚ each bag of candy represents a different habitat. Each color represents a different plant in the habitat. Materials notebook paper 1 small bag of fruit candies of different colors 1 small bag of chocolate candies of different colors 2 dishes or plastic containers Procedures 1. Pour each bag of candy
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ability of bronze frog Rana temporalis tadpoles (pure or mixed parental lines) to assess the profitability of food habitats and distribute themselves accordingly was tested experimentally using a rectangular choice tank with a non-continuous input design. Food (boiled spinach) was placed at two opposite ends of the choice tank in a desired ratio (1 : 1‚ 1 : 2 or 1 : 4) to create habitat A and B. The tadpoles in Gosner stage 28–33‚ pre-starved for 24 h‚ were introduced in an open ended mesh cylinder
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extinction as a result of human action: Habitat Destruction – Animal Habitats are often destroyed in construction of homes‚ roads etc. Tree’s (deforestation)‚ ponds and other types of habitats are removed in order to make room for this type of construction. Pollution – Pollution and climate change have seen a lot of animals become endangered. Acid rain has caused many marine animals to become extinct due to the change in pH of their habitat. Melting ice caps due to changes in C02 levels
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biodiversity include: habitat degradation and loss; loss of species‚ overgrazing and exploitation of rangeland sources‚ poaching of
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Soils Conservation: Easier - Soil is the loose top layer of our planet’s crust. It is dirt or earth in which plant life can grow. Harder - Soil covers a major portion of the earth’s land surface. It is an important natural resource that either directly or indirectly supports most of the planet’s life. Life here depends upon soil for food. Plants are rooted in soil and obtain needed nutrients there. Animals get their nutrients from plants or from other animals that eat plants. Many animals make
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It has a very limited mountain range habitat. Because their mountain range habitat is very limited in water supplies. They are dying from thirst just as much as starvation. Most of their population is put in protected places. If the Ethiopian wolf dies‚ the mouse population will rise rapidly(they eat mice) and
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Humans 2 Flowers 3 Lichens 4 Bees POST LAB QUESTIONS 1. Explain how the ecosystem was affected by the missing species for each round of the demonstration. a. Round 1 = Without humans less pollution would be in the ecosystem and the natural habitat would be a lot more stable and in better condition than it currently is in. b. Round 2 = Without flowers in the ecosystem we would have lower levels of oxygen to breathe and at the same time a lot less allergies to things such as pollen but also
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4.3.1 State the arguments for preserving species and habitats. Why conserve biodiversity? The values of biodiversity can be classified as either direct values or indirect values (see pp.119-120 in the IB ESS Course Companion): • Direct values - can be (relatively) easily calculated • goods harvested & destroyed for consumption (eating) or sale in a market • generally physical commodities of some sort • private goods - value accrues to the owner of the resource • Examples:
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