Biology: The Unity and Diversity of Life (MindTap Course List)
15th Edition
ISBN: 9781337408332
Author: Cecie Starr, Ralph Taggart, Christine Evers, Lisa Starr
Publisher: Cengage Learning
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Chapter 44, Problem 3CT
Bluebirds are songbirds that, like wood ducks, nest in cavities in trees. European house sparrows, which have been introduced to North America, also nest in such cavities. Explain how the arrival of the house sparrows affected the
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Chapter 44 Solutions
Biology: The Unity and Diversity of Life (MindTap Course List)
Ch. 44 - Iguana Decline In 1987, Martin Wikelski began a...Ch. 44 - Iguana Decline In 1987, Martin Wikelski began a...Ch. 44 - Iguana Decline In 1987, Martin Wikelski began a...Ch. 44 - Most commonly, individuals of a population show a...Ch. 44 - The rate at which population size grows or...Ch. 44 - Suppose 200 fish are marked and released in a...Ch. 44 - Prob. 4SQCh. 44 - For a given species, the maximum rate of increase...Ch. 44 - ______ is a density-independent factor that...Ch. 44 - Prob. 7SQ
Ch. 44 - Prob. 8SQCh. 44 - The human population is now about 7 billion. It...Ch. 44 - Prob. 10SQCh. 44 - Prob. 11SQCh. 44 - Prob. 12SQCh. 44 - The demographic transition model predicts a...Ch. 44 - Prob. 14SQCh. 44 - Match each term with its most suitable...Ch. 44 - Think back to Section 44.6. When researchers moved...Ch. 44 - Mountain gorillas are a highly endangered primate...Ch. 44 - Bluebirds are songbirds that, like wood ducks,...Ch. 44 - The age structure diagrams for two hypothetical...
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- Why are species of birds that nest in grasslands declining in north America? What could be done to slow or stop this decline?arrow_forwardRajah pitcher plants in Borneo may obtain most of the nitrogen they need from the scat of mountain tree shrews and summit rats, both of which eat pitcher plant nectar. The plants get the rest of their nitrogen from insects they capture and digest. Insects are scarce in the plants' mountain habitat and some plants may get all their nitrogen from scat. Which graph depicts what would most likely happen to the rajah pitcher plant population were the mountain tree shrew and summit rat to go extinct? Option A Time Option D O Option B O Option C C Option A Option B Option C Option Darrow_forwardIf populations of white rhinoceros (Ceratotherium simum) continue to decline, one approach to prevent extinction would be captive breeding. How does this process work? a. The remaining animals are moved into captivity to try to increase the population, after which they are reintroduced into the wild. b. The remaining animals are moved to a national park. c. The remaining animals are taken to the largest zoos so more people can see them. d. A few individuals are moved to an outdoor enclosure to ensure that mates are available.arrow_forward
- Scientists have observed a trend in population changes of the snowshoe hare in Canada. About every 8 years, the number of hares falls sharply. One year later, the number of lynx in the same area falls also. The lynx is the main predator of the snowshoe hare. Scientists discovered that snowshoe hares rely on willow plants for food during the winter. When the snowshoe hare population gets bigger, they eat more of the leaves on the willows. Scientists also found out that willow plants release a poison when they get eaten back too far. Which statement best describes what limits the size of the snowshoe hare population?arrow_forwardDippers (Cinclus cinclus) are small birds that can be found along fast-flowing streams in Europe and Asia. They feed on insect larvae, especially those of caddis flies (Trichoptera), which they catch by sticking their heads under water and turning over stones. Describe the relationship between the abundance of caddis fly larvae and dippers?Why, is caddis fly larva abundance expressed as ‘relative abundance’? using the data in Table 2arrow_forwardImagine the birds that eat peppered moths went extinct. What would happen to the peppered moth population?arrow_forward
- What population will be directly affected if the sea otters leave the kelp forest? Predict the changes that will happen.arrow_forwardIf populations of white rhinoceros (Ceratotherium simum) continue to decline, one approach to prevent extinction would be captive breeding. How does this process work? a. The remaining animals are moved into captivity to try to increase the population, after which they are reintroduced into the wild. b. The remaining animals are moved to a national park. c. The remaining animals are taken to the largest zoos so more people can see theam. d. A few individuals are moved to an outdoor enclosure to ensure that mates are available.arrow_forwardWhy were small-beaked medium ground finches (Geospiza fortis) most affected by the drought on Daphne major in 1976? A. Being small, they were less able to withstand the high temperatures during the drought B. The type of food that they eat, insects, was depleted C. Their beaks were too small to eat the remaining food, large nuts D. Their territory was taken by large-beaked medium ground finchesarrow_forward
- Researchers have suggested that predators could actually increase the population density of a prey species heavily infested by a pathogenic parasite. Explain how predation could lead to population increases in the prey population.arrow_forwardImagine the environment of an ecosystem changes such that it floods more often. Which species would most likely increase in numbers in this new environment? a flightless bird species that makes its nest on the ground a tree species that is tolerant of excess water a mammal species that burrows underground an insect species that lives on the leaves of short bushesarrow_forwardWhen populations of ocean perch and herring are reduced, which other species in this ecosystem are directly affected? Identify at least two species that directly lose their food source.arrow_forward
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