Animal Population Over Time The bar graph represents experimental data collected in a region of northern Canada starting when it was first colonized. The graph identifies trends in animal population over a 100-year period. bear deer horse dog 0 1 2 3 4 5 6 7 8 9 human population (millions) animal population

Animal Population Over Time The bar graph represents experimental data collected in a region of northern Canada starting when it was first colonized. The graph identifies trends in animal population over a 100-year period. bear deer horse dog 0 1 2 3 4 5 6 7 8 9 human population (millions) animal population

Biology (MindTap Course List)

11th Edition

ISBN:9781337392938

Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg

Publisher:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg

Chapter53: Introduction To Ecology: Population Ecology

Section: Chapter Questions

Problem 17TYU

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Similar questions

The graph shows the worldwide human population from 1950 to 2050. Data for the future years are predictions. According to the ideas of Thomas Malthus, what are the predicted changes to the human population after 2050? A. The population would continue to increase at the same rate, due to constant food supplies. B. The population would increase more rapidly, due to advances in technology. C. Eventually the population would stop increasing or would decrease, due to lack of food and living space. D. Eventually the population would decrease to zero, because of war, famine, or disease.
Population _______________ is the number of individuals of a species per unit of habitat area or volume at a given time. (a) dispersion (b) density (c) survivorship (d) age structure (e) demographics
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Which of the following stages of human population growth was characterized by extremely slow growth rates (about 0.0001% per year), and ranged from only 10,000 to over 5 million individuals? A. stage I (hunter/gatherer societies, without agriculture or machine industries) B. stage I (agricultural societies, without machine industries) C. stage III (industrial societies, but without widespread computer technology) D. stage IV (modern societies, with computer technology) E. all of the above
Salt is notoriously dangerous to land snails; however, some populations of aquatic, freshwater snail have brackish (or a mix of salt and fresh water) water adaptations and live in different parts of a river system. A group of scientists monitored salt concentrations in the habitats of two freshwater snail populations located nearby and recorded the data as follows (in ppt, parts per thousand): Population 1 (Day 1): 0.1 ppt (morning), 0.0 ppt (afternoon), 0.1 ppt (evening) Population 2 (Day 1): 0.3 ppt (morning), 0.5 ppt (afternoon), 0.2 ppt (evening) In 3–5 sentences, 1) describe how these results show why the brackish water adaptation may be necessary, and 2) explain how to determine whether the inherited adaptation is influenced by environmental factors.
What would happen to the human population if the number of births becomes equal to the number of deaths?a. The human growing rate would be 1.1% per year.b. The human population curve would acquire a J-shape.c. The Earth’s carrying capacity would decrease.d. The human population would stop growing
Japan currently exhibits which of the following age-structures (population profiles)? A. the column population profile B. the inverted pyramid population profile C. the bulge population profile D. the pyramid population profile E. all of the above
Which statement about population growth is true? A. Population growth models do not apply to humans. B. Population growth can be exponential for only as long as environmental conditions are favorable. C. Population growth can continue indefinitely. D. Population growth of field samples always has a λ of approximately 1.
A fish biologist goes out and samples (sample 1) a population of salmon. A total of 109 (M) salmon were marked and released. At this time, a proportion of fish in the total population has a mark and we assume that this proportion remains constant. On a second sampling trip (sample 2), the biologist collected 177 (C) salmon and 57 (R) of those were marked from the initial sample. How large is the population?
The graph below shows changes in the size of an Emperorpenguin population in terms of numbers of breeding pairson the island of Terre Adelie in the Antarctic. Scientistsused these data along with data on the penguins’ shrinking ice habitat to project a general decline in the island’sEmperor penguin population, to the point where theywill be endangered in 2100. Use the graph to answer thequestions on the right. What was the overall percentage decline in thepenguin population from 1975 to 2010?
Shown is an age pyramid of Brazil in the year 2021. Describe its shape. What does the shape of the age pyramid tell you about their population? What can be said about the birth rates and death rates.
Use the information provided: population experiences density-dependent growth K or carrying capacity is 180 r = 0.032 individual/month 1. Calculate how many bugs are added to the population next month when population size is 65? 2. Now keeping the condition of density dependent growth, let's change some numbers: K=270 and r=0.13. If the current population is 125 bugs, how large will the population be in 12 months?