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Ch. 54 - Biodiversity and Conservation Ecology
Chapter 53, Problem 16

Do you drink coffee? A lot of people do—coffee is a major tropical crop, valued at over $100 billion per year. The most popular species of coffee, Coffea arabica, originated in Africa and is now planted extensively in Central and South America. The pest called the coffee berry borer beetle (Hypothenemus hampeii) moved along with the coffee and is a major problem for coffee farmers, sometimes destroying half of the coffee crop in mature plantations. Evaluate this statement: Leaving some natural forest in and around coffee plantations is a 'win-win' situation—a win for ecosystems and a win for farmers.

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Identify the key components of the statement: The statement suggests that maintaining natural forests in and around coffee plantations benefits both ecosystems and farmers. This involves understanding the roles of natural forests and how they might impact coffee production and environmental health.
Analyze the ecological benefits: Natural forests can provide habitats for a variety of organisms, including natural predators of pests like the coffee berry borer beetle. These predators can help control pest populations naturally, reducing the need for chemical pesticides.
Consider the benefits for coffee farmers: By reducing pest populations through natural predation, farmers can potentially experience less crop loss to pests like the coffee berry borer beetle. This can lead to higher yields and potentially lower costs in pest management.
Evaluate ecosystem services: Besides pest control, natural forests contribute to the overall health of the ecosystem by improving soil quality, regulating water cycles, and sequestering carbon, which can lead to more sustainable coffee plantation environments.
Conclude based on the analysis: If the presence of natural forests indeed leads to significant ecological benefits and practical advantages for farmers in terms of pest control and crop yield, then maintaining these forests could indeed be a 'win-win' situation as suggested.

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Key Concepts

Here are the essential concepts you must grasp in order to answer the question correctly.

Ecosystem Services

Ecosystem services refer to the benefits that humans derive from natural ecosystems, including provisioning services like food and raw materials, regulating services such as climate regulation, and cultural services that provide recreational and aesthetic benefits. In the context of coffee plantations, maintaining natural forests can enhance biodiversity, improve soil health, and provide habitat for pollinators, which are crucial for coffee production.
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Biodiversity

Biodiversity encompasses the variety of life forms within a given ecosystem, including the diversity of species, genetic variation, and ecosystem diversity. High biodiversity in and around coffee plantations can lead to greater resilience against pests and diseases, such as the coffee berry borer beetle, by supporting natural predators and promoting ecological balance.
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Sustainable Agriculture

Sustainable agriculture involves practices that meet current food needs without compromising the ability of future generations to meet theirs. This includes integrating ecological principles into farming, such as crop rotation, agroforestry, and maintaining natural habitats, which can enhance productivity and reduce reliance on chemical inputs, ultimately benefiting both farmers and the environment.
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Related Practice
Textbook Question

Scientists around the world are collaborating to understand how deforestation, climate change, and natural processes will interact to affect one of the most productive and biodiverse ecosystems on Earth. Many studies have raised the concern that positive feedback loops among numerous variables in the Amazon will cause an ecosystem tipping point—a rapid and irreversible transition from forest to grassland. Use the model in Question 14 as a tool to summarize a possible sequence of effects that could cause a transition from forest to grassland.

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Textbook Question

Do you drink coffee? A lot of people do—coffee is a major tropical crop, valued at over $100 billion per year. The most popular species of coffee, Coffea arabica, originated in Africa and is now planted extensively in Central and South America. The pest called the coffee berry borer beetle (Hypothenemus hampeii) moved along with the coffee and is a major problem for coffee farmers, sometimes destroying half of the coffee crop in mature plantations. Draw a simple model to compare the relative species richness and species diversity of these two coffee plantations: one is clear-cut and planted with only coffee shrubs, the other retains some natural forest. For symbols, use a few letters to represent different species of plants and a few numbers to represent different species of animals in a square 1-ha plot.

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Open Question

This study suggests a form of sentience (the capacity to experience feelings and sensations) in bumble bees. How might these findings impact conservation policies?

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Textbook Question

Scientists around the world are collaborating to understand how deforestation, climate change, and natural processes will interact to affect one of the most productive and biodiverse ecosystems on Earth. Journalists must be concise when reporting science news. Why might journalists and the public struggle to understand and discuss ecosystems ecology and global warming?

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