1. 2. carrying capacity the maximum number of a species or “load” that can be sustainably supported by given environment. k and r strategist reproduction K-Strategists (human)– species that are slow growing and produce few‚ large offspring that mature slowly R-Strategists (oyster)– species that grow and mature quickly and produce many small offspring R- and K- selection theory suggests that natural selection may favour individuals with a high reproductive rate and rapid development over
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textbook for biome examples. Madagascar is an island. There are several different types of ecosystems throughout. It has tropical forests in the eastern region‚ dry forests in the southwestern region‚ man-made grasslands‚ natural wetlands‚ and coral reefs on the coasts. The most common ecosystem is the rainforest. The lowland rainforest’s elevation is about 800 meters. It is the most biologically rich ecosystem in Madagascar. They are very humid and rainy. Typically lowland rainforests have very well
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a colder climate‚ migration will be seen greatly. Essentially‚ warmer climates will allow for certain species to live in an area and others to migrate and will also allow for certain industries to prosper and others to die out‚ which will cause ecosystems to adapt accordingly‚ leading to eventual evolutionary
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1.2 How have environmental cycles changed? The capacity of ecosystems to provide benefits to humans‚ that is to provide ecosystem services‚ derives from environmental cycles of water‚ nitrogen‚ carbon‚ and phosphorus. These processes have in some cases been significantly modified by human activity. Changes have been more rapid in the second half of the 20th century than at any other time in recorded human history. Water cycle: Water withdrawals from rivers and lakes for irrigation‚ urban uses‚
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Chapter 37 Communities and Ecosystems Study Guide A 4-mm-long wasp called Apanteles glomeratus stabs through the skin of a caterpillar and lays her eggs; Yet another wasp‚ a chalcid‚ may lay its eggs inside the ichneumon larvae. Structural Features of Communities Communities are characterized by species diversity‚ dominant species‚ response to disturbance‚ and trophic structure interspecific competition Competition between individuals or populations of two or more species requiring a limited
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and plays. Acc to osting –“the environment is a complex of variables factors or causes which includes substances‚ conditions forces organisms and time Scope Scope of environmental studies is vast but confined to the study of natural resource ‚ecosystems ‚biodiversity and its conservation ‚environment pollution ‚social issues and environment ‚human population and environment and sustainable development . THE MULTIDISCIPLINARY NATURE OF THE STUDY 1 Environment and economics- economic growth and environmental
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Concern of Our Eco System The variety of life on Earth‚ its biological diversity is commonly referred to as biodiversity. The number of species of plants‚ animals‚ and microorganisms‚ the enormous diversity of genes in these species‚ the different ecosystems on the planet‚ such as deserts‚ rainforests and coral reefs are all part of a biologically diverse Earth. Appropriate conservation and sustainable development strategies attempt to recognize this as being integral to any approach. Almost all cultures
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important to have biodiversity‚ Biodiversity boost ecosystems productivity. What is productivity? Well productivity is the effectiveness of productive effort; it is about how well people combine resources to produce goods and services. It is important to have productivity because it improves the environmental standards for many species of animals; this can increase a species population and allow that species to thrive. Biodiversity boost the ecosystem productivity where each species‚ no matter how big
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THE IMPACT OF CLIMATE CHANGE ON NON TIMBER FOREST PRODUCTS Introduction Over the years‚ there have been growing concerns over the maintaining and sustainability of the ecosystem. One of the areas that have not been left out is the growing need to monitor forest management. Natural changes such as climate change cause variations in the nature and quality of products in these forests. The areas of interest in this case are the non-timber forest products which are becoming of extreme importance in
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Self-Sustaining Aquatic Ecosystem Question: How can you design a model aquatic ecosystem (a biosphere) that can survive as a self-regulating system in a completely sealed container? Section A – to be completed as part of a group Part 1: Proposal Before you can build your ecosystem‚ you must first create a detailed proposal outlining your intended design. This should include: A list of factors that you think will influence the success or failure of your ecosystem. How will you attempt to
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