BIOLOGY:CONCEPTS+INVEST.-CONNECT ACCESS
5th Edition
ISBN: 9781260542233
Author: Hoefnagels
Publisher: MCG
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Chapter 38, Problem 6WIO
Summary Introduction
To determine:
The reason for the decline in population of insects and birds when the plant mistletoe is available and not available in any forest.
Concept introduction:
In this, a
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An ecologist studying plants in the desert performed the following experiment. She staked out two identical plots, which included a few sagebrush plants and numerous small, annual wildflowers. She found the same five wildflower species in roughly equal numbers on both plots. She then enclosed one of the plots with a fence to keep out kangaroo rats, the most common grain-eaters of the area. After two years, to her surprise, four of the wildflower species were no longer present in the fenced plot, but one species had increased dramatically. The control plot had not changed. Using the principles of ecology, propose a hypothesis to explain her results. What additional evidence would support your hypothesis?
Some ecologists have dismissed the terms "R" and "K" and have replaced them with the terms "maintenance" and "dispersal." Match the new terms to the old terms and explain how they are accurately used.
An ecologist studying desert plants performed the following experiment. She staked out two identical plots that included a few sagebrush plants and numerous small annual wildflowers. She found the same five wildflower species in similar numbers in both plots. Then she enclosed one of the plots with a fence to keep out kangaroo rats, the most common herbivores in the area. After two years, four species of wildflowers were no longer present in the fenced plot, but one wildflower species had increased dramatically. The unfenced control plot had not changed significantly in species composition. Using the concepts discussed in the chapter, what do you think happened?
Chapter 38 Solutions
BIOLOGY:CONCEPTS+INVEST.-CONNECT ACCESS
Ch. 38.1 - Distinguish among communities, ecosystems, and...Ch. 38.1 - Prob. 2MCCh. 38.1 - Distinguish between habitat and niche.Ch. 38.1 - Prob. 4MCCh. 38.1 - Prob. 5MCCh. 38.1 - Prob. 6MCCh. 38.1 - Prob. 7MCCh. 38.2 - Prob. 1MCCh. 38.2 - Prob. 2MCCh. 38.2 - Prob. 3MC
Ch. 38.2 - Prob. 4MCCh. 38.3 - Identify the trophic levels of a food chain.Ch. 38.3 - Prob. 2MCCh. 38.3 - Prob. 3MCCh. 38.3 - Prob. 4MCCh. 38.3 - Prob. 5MCCh. 38.3 - Prob. 6MCCh. 38.4 - Prob. 1MCCh. 38.4 - Prob. 2MCCh. 38.4 - Prob. 3MCCh. 38.4 - Prob. 4MCCh. 38.4 - Prob. 5MCCh. 38.5 - Prob. 1MCCh. 38.5 - Prob. 2MCCh. 38 - Prob. 1MCQCh. 38 - Cyanobacteria are photosynthetic bacteria that...Ch. 38 - Prob. 3MCQCh. 38 - Prob. 4MCQCh. 38 - A large tree falls over in an old-growth forest,...Ch. 38 - Prob. 6MCQCh. 38 - In a prairie, which trophic level should have the...Ch. 38 - Prob. 8MCQCh. 38 - Prob. 9MCQCh. 38 - Prob. 1WIOCh. 38 - Prob. 2WIOCh. 38 - Prob. 3WIOCh. 38 - Prob. 4WIOCh. 38 - Prob. 5WIOCh. 38 - Prob. 6WIOCh. 38 - Prob. 7WIOCh. 38 - Prob. 8WIOCh. 38 - Prob. 9WIOCh. 38 - 1. Review the definitions of ecology, populations,...Ch. 38 - Prob. 2PIT
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