Ch. 49 - An Introduction to Ecology

Freeman - Biological Science 8th Edition

Freeman8th EditionBiological ScienceISBN: 9780138276263Non è quello che usi tu?Cambia libro di testo

Freeman 8th Edition

Ch. 49 - An Introduction to Ecology

Problema 7

Capitolo 49, Problema 7

Temperate forest in China and temperate forest in North America are part of the same biome but are distinct ecosystems. Explain.

Guida verificata passo dopo passo

Step 1: Understand the terms. A biome is a large community of plants and animals that occupies a distinct region. An ecosystem, on the other hand, is a community of living organisms in conjunction with the nonliving components of their environment, interacting as a system.

Step 2: Recognize that the temperate forest biome is characterized by four seasons with a significant amount of rainfall. It includes regions in North America, Europe, East Asia, and South America. The plants and animals in this biome have adapted to these conditions.

Step 3: Understand that while the temperate forest in China and North America are part of the same biome, they are distinct ecosystems because they have different species of plants and animals, different climates, and different non-living components. For example, the temperate forests in China are home to species like the giant panda and golden monkey, while those in North America are home to species like the white-tailed deer and black bear.

Step 4: Note that the non-living components of an ecosystem, such as soil type, water availability, and climate, can also vary between different regions of the same biome. For example, the temperate forests in China may receive more rainfall and have different soil types than those in North America.

Step 5: In conclusion, while the temperate forests in China and North America are part of the same biome, they are distinct ecosystems due to differences in living and non-living components.

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Biome

A biome is a large ecological area on the Earth's surface, characterized by specific climate conditions, flora, and fauna. Biomes are classified based on factors such as temperature, precipitation, and the types of organisms that inhabit them. The temperate forest biome, for instance, is defined by its moderate climate and distinct seasons, supporting a variety of tree species and wildlife.

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Introduction to Aquatic Biomes

Ecosystem

An ecosystem is a community of living organisms interacting with their physical environment. It includes both biotic factors, like plants and animals, and abiotic factors, such as soil, water, and climate. While temperate forests in different regions share the same biome classification, their ecosystems can differ significantly due to variations in local climate, soil types, and species composition.

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Introduction to Ecosystems

Disturbance and Adaptation

Disturbance refers to events that disrupt ecosystem structure and function, such as fires, storms, or human activities. These disturbances can lead to adaptations in species, influencing biodiversity and ecosystem dynamics. The temperate forests in China and North America may experience different disturbances and adaptations, resulting in distinct ecosystems despite their classification under the same biome.

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Adaptive Radiation

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Explain how the open ocean is similar to the desert, and how it is not.

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Which of these statements about aquatic biomes is true? Select True or False for each statement.

T/F The ocean is so vast that it is not influenced by human impacts.

T/F Water depth, water flow, salinity, and nutrient availability are important abiotic factors in aquatic biomes.

T/F Once nutrients sink to the bottom of lakes, they are no longer available to organisms.

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Domanda del libro di testo

Scientists predict that global climate change will cause a greater increase in average temperature at higher latitudes than in the tropics. This seems like good news since most of the world's biodiversity occurs in the tropics. However, recent data suggest that a smaller temperature change in the tropics will cause a larger physiological response in organisms there than the larger temperature change will in organisms in temperate areas. Based on what you have learned about thermal niches in this chapter, propose a hypothesis to explain this result.

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Like Earth, Mars has seasons—its Northern Hemisphere experiences winter when its Southern Hemisphere experiences summer. Which statement is the best explanation for seasonality on Mars?

a. Mars is tilted on its axis.

b. Mars has an elliptical orbit that brings it closer to the Sun in summer than in winter.

c. Mars has a circular orbit and maintains a constant distance from the Sun.

d. The Southern Hemisphere of Mars consistently receives direct solar radiation.

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Domanda del libro di testo

What is one expected consequence of global climate change?

a. Average rainfall will increase.

b. Average rainfall will decrease.

c. Variability in rainfall will increase.

d. We cannot make predictions about future rainfall.