Campbell Essential Biology (7th Edition)
7th Edition
ISBN: 9780134765037
Author: Eric J. Simon, Jean L. Dickey, Jane B. Reece
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
Textbook Question
Chapter 19, Problem 9IMT
The lynx is one of the main predators of the snowshoe hare in the far northern forests of Canada and Alaska. About every ten years, both lynx and hare populations show a rapid increase followed by a sharp decline.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
Two winters ago, a species of bird called the pine siskin began appearing in droves at backyard bird feeders in my hometown. We would occasionally spot a few each winter, but numbers were unusually high that year. The next winter, it seemed as if all of the "extra" pine siskins had disappeared. Numbers fell back to the levels that we were used to seeing.
Use the concept of carrying capacity to explain the irruption of pine siskins described in the scenario. Provide your answer in a standard paragraph using complete sentences
Eastern loggerhead shrike is a critically endangered species of bird in Canada. Its population has been declining since the 1960s, and it has been speculated that habitat loss, pesticide usage combined, and climate change have affected the shrike population size.
In 2004, there were approximately 70 loggerhead shrikes breeding in Canada. Over the next five years, 111 new shrikes were born, 57 died, and 15 left the area.
Calculate the change in the population of eastern loggerhead shrike between 2004 and 2009.
Express your answer rounded to the nearest whole number.
Answer
Trumpeter swans were once widespread and abundant in North America. However, a combination of heavy hunting pressure and habitat lost drastically 4 reduced the species’ population down to less than 70 individuals in the wild by the mid-1930s. By the mid-1980s, Trumpeter swans were more prevalent again in Alberta, especially near Grande Prairie. The following graph depicts the estimated number of Trumpeter swans in Alberta, carried out at five-year intervals from 1985 to 2010.
What growth pattern of the Trumpeter swan population in Alberta is being observed?
What environmental conditions allow the growth pattern that you identified?
What may cause the growth pattern that is being observed to change?
Chapter 19 Solutions
Campbell Essential Biology (7th Edition)
Ch. 19 - What two values would you need to know to figure...Ch. 19 - If members of a species produce a large number of...Ch. 19 - Prob. 3SQCh. 19 - Prob. 4SQCh. 19 - Prob. 5SQCh. 19 - Prob. 6SQCh. 19 - According to data on ecological footprints, a. the...Ch. 19 - The mussel secretes a combination of molecules...Ch. 19 - The lynx is one of the main predators of the...Ch. 19 - Life history traits, like anatomical features, are...
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- Pronghorns look very similar to antelopes and are considered the fastest mammal in North America. They can be found in the Southeastern parts of Alberta. In the 1800s, it is thought that the population of pronghorns reach 35 million in the Prairies. By 1924, only 20,000 pronghorns could be found in Alberta. In 1996, only 9,600 remained. What is the per capita growth rate of pronghorns in Alberta between 1924 and 1996? Express your answer as a value between 0 and 1 rounded to two decimal places. If the population is decreasing indicate this with a negative sign. Answerarrow_forwardThe predator-prey relationship between five generations of wolves and elk is shown in the graph.arrow_forwardPOPULATION TRENDS FOR GUAM NATIVE BIRD SPECIES 140 130 120 110 100 E 90 80 70 60 Mariana Crow = Rufous Fantail - Micronesian Starling = Micronesian Honeyeater Chestnut Munia 50 40 30 20 10 04 76 The island of Guam in the South Pacific had no natural predators until the early 1950s, when the brown tree snake was accidentally introduced by either ships or aircraft shortly after the Second World War. Scientists studying the effects of this invasive species surveyed five different native bird species in an area of northern Guam that the brown snake had recently invaded. The graph shows the population data of the five different native bird species from 1976 to 1998. Which of the following best describes the data and explains the effect of the arrival of the brown tree snake on Guam's native bird species? Birds/100 kmarrow_forward
- Southern sea otters were hunted to extinction in the early 1900s. True Falsearrow_forwardAssume that for a given population of moose, the per-capita birth rate remains constant with population size. However, as the moose population size increases there is a linear increase in the probability of starvation and subsequent mortality due to intraspecific competition. a) On a single graph, draw the relationship between moose density and the per capita birth and death rates for this population. b) Assume that the population does not experience competition from other species, nor predation. Write out the equation that would best be used to describe the change in population growth from one time interval to another.arrow_forwardUpland game hunters in Illinois have been noticing a decrease in therabbit and pheasant populations over the past five years. They havelobbied the Department of Natural Resources and the statelegislature to allow them to shoot red-tailed hawks, one of therabbit’s and pheasant’s main predators. Explain why shooting hawkswill not ultimately solve the problem of a decreased rabbit andpheasant populationarrow_forward
- The ten-year cycles of the populations of the snowshoe hare and Canada lynx were first recorded from fur returns of Hudson's Bay Company traders in the late 1800s. The cycles revolve around the lynx's preference for hares over other animals as a food source. This predator-prey relationship is again being studied by the Northwest Territories Department of Renewable Resources, in an area known as the Mackenzie Bison Sanctuary. 1991 1992 N = 19 100 kam 100 km N = 3 100 km 100 km Legend:a=I Lynx 1a. Calculate the density of the lynx population in 1991 and 1992. Show your work. 1b. Calculate the per capita growth rate for the lynx population from 1991 to 1992. Show your work.arrow_forwardThe Spotted Lanternfly (Lycorma delicatula) is endemic to China and was first identified in the United States in 2014 in Pennsylvania. It was found in New York in 2020. According to the New York State Department of Environmental Conservation (DEC) it poses a significant threat to our agricultural industry, negatively impacts outdoor recreation, and may impact forest health. Draw a graph of how you expect this population to grow in New York State given that there are few predators and ample fruit trees and other host trees (see more information on the USDA page). On your graph annotate and justify your predictions about population growth changes.arrow_forwardThe ten-year cycles of the populations of the snowshoe hare and Canada lynx were first recorded from fur returns of Hudson's Bay Company traders in the late 1800s. The cycles revolve around the lynx's preference for hares over other animals as a food source. This predator-prey relationship is again being studied by the Northwest Territories Department of Renewable Resources, in an area known as the Mackenzie Bison Sanctuary. 1991 1992 N = 19 100 100 km N = 3 100 km 100 km Legend:a=I Lynx 1c. The density of the snowshoe hare in the study area was about 800/km2 in 1990 and about 100/km2 in 1991. Identify one possible cause for the change in the lynx population density during the 1991 to 1992 time period. d. After the decline in the hare population, younger male lynx were found to have migrated as far as 500 km from the study area. Explain how the gene pool of the neighbouring lynx populations would be affected. le. Lynx have lustrous, long hair. Currently lynx fur is out of fashion in…arrow_forward
- You are watching a documentary on television about grizzly bears in North America. The narrator is speaking over a clip of two cubs and their mother walking along a riverbank in a heavily wooded forest. She says that grizzly bear populations are rising for the first time in several decades even though deforestation is still a growing problem in North America. Which of the following could be a possible factor for the increase in the grizzly population? Loss of habitat Reduction of resources Increased industrialization Higher birth rate over death ratearrow_forwardThe long-term study by Krebs on the population dynamics of snowshoe hares and lynx has become a textbook example of predator-prey relationships. The population cycles he observed are the result of both biotic and abiotic factors affecting prey populations. List 3 factors that can contribute to population cycles and briefly explain their effectsarrow_forwardThe ten-year cycles of the populations of the snowshoe hare and Canada lynx were first recorded from fur returns of Hudson's Bay Company traders in the late 1800s. The cycles revolve around the lynx's preference for hares over other animals as a food source. This predator-prey relationship is again being studied by the Northwest Territories Department of Renewable Resources, in an area known as the Mackenzie Bison Sanctuary. 1991 1992 N = 19 100 100 km N = 3 100 km 100 km Legend:a=I Lynx 1f. The birth rate in the lynx population can be estimated by determining litter sizes. Litter size can be determined by two methods. The first method involves counting the number of placental scars on the uterus of a lynx carcass. A scar is left at each implantation site of a fetus. The second method involves counting the number of degenerated corpora lutea (plural of corpus luteum) in the ovaries of the lynx carcass. Neither of these methods provides a completely accurate value for litter size.…arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Human Anatomy & Physiology (11th Edition)BiologyISBN:9780134580999Author:Elaine N. Marieb, Katja N. HoehnPublisher:PEARSON
Biology 2eBiologyISBN:9781947172517Author:Matthew Douglas, Jung Choi, Mary Ann ClarkPublisher:OpenStax
Anatomy & PhysiologyBiologyISBN:9781259398629Author:McKinley, Michael P., O'loughlin, Valerie Dean, Bidle, Theresa StouterPublisher:Mcgraw Hill Education,
Molecular Biology of the Cell (Sixth Edition)BiologyISBN:9780815344322Author:Bruce Alberts, Alexander D. Johnson, Julian Lewis, David Morgan, Martin Raff, Keith Roberts, Peter WalterPublisher:W. W. Norton & Company
Laboratory Manual For Human Anatomy & PhysiologyBiologyISBN:9781260159363Author:Martin, Terry R., Prentice-craver, CynthiaPublisher:McGraw-Hill Publishing Co.
Inquiry Into Life (16th Edition)BiologyISBN:9781260231700Author:Sylvia S. Mader, Michael WindelspechtPublisher:McGraw Hill Education
Human Anatomy & Physiology (11th Edition)
Biology
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:PEARSON
Biology 2e
Biology
ISBN:9781947172517
Author:Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher:OpenStax
Anatomy & Physiology
Biology
ISBN:9781259398629
Author:McKinley, Michael P., O'loughlin, Valerie Dean, Bidle, Theresa Stouter
Publisher:Mcgraw Hill Education,
Molecular Biology of the Cell (Sixth Edition)
Biology
ISBN:9780815344322
Author:Bruce Alberts, Alexander D. Johnson, Julian Lewis, David Morgan, Martin Raff, Keith Roberts, Peter Walter
Publisher:W. W. Norton & Company
Laboratory Manual For Human Anatomy & Physiology
Biology
ISBN:9781260159363
Author:Martin, Terry R., Prentice-craver, Cynthia
Publisher:McGraw-Hill Publishing Co.
Inquiry Into Life (16th Edition)
Biology
ISBN:9781260231700
Author:Sylvia S. Mader, Michael Windelspecht
Publisher:McGraw Hill Education
Mendelian Genetics and Punnett Squares; Author: Professor Dave Explains;https://www.youtube.com/watch?v=3f_eisNPpnc;License: Standard YouTube License, CC-BY
The Evolution of Populations: Natural Selection, Genetic Drift, and Gene Flow; Author: Professor Dave Explains;https://www.youtube.com/watch?v=SRWXEMlI0_U;License: Standard YouTube License, CC-BY