Principles of Biology
2nd Edition
ISBN: 9781259875120
Author: Robert Brooker, Eric P. Widmaier Dr., Linda Graham Dr. Ph.D., Peter Stiling Dr. Ph.D.
Publisher: McGraw-Hill Education
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Chapter 43.2, Problem 2TYK
Summary Introduction
Introduction:
Survivorship curve is a graphic illustration of the count of individuals in a population or inhabitants that can be expected to live to any definite age. There are 3 general patterns of survivorship curves which are simply termed to as Type I, Type II, and Type III.
American Beaver is especially found in North America. It belongs to Animalia (Kingdom), Chordata (Phylum), Mammalia (Class), Rodentia (Order), Castoridae (Family). They are most energetic at night. Beavers are outstanding swimmers.
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Plot the survivorship curve and indicate what type it is given the following data:
For each organism, create a survivorship curve by plotting the given information in a line graph. Title each graph "Survivorship Curve for [name of organism]." The y-axis should be labeled "Survivorship" and contain low, medium, and high indicators. The x-axis should be labeled "Life Span" and contain young, middle-aged, and old indicators.
American toads practice explosive reproduction. During the first warm days in spring, both males and females migrate from forests and converge on ponds. Reproduction is quick, taking only a few days. Females lay hundreds of eggs in jelly-filled sacks along the sides of the pond or stream. As soon as the eggs are laid, males and females abruptly leave the pond. Even before they hatch, the offspring are prone to high rates of predation. Many offspring die before they reach adulthood. Of the offspring that do survive, some will die in adulthood, and some will live their entire natural life span.
What is the main factor that limits population growth for in the fish case study?
What is the main factor that limits population growth for in the fish case study?
Interspecific predation
Social behavior
Intraspecific competition
Diseases and parasites
Chapter 43 Solutions
Principles of Biology
Ch. 43.1 - If we mark 110 Rocky Mountain goats andrecapture...Ch. 43.1 - Prob. 1TYKCh. 43.2 - Prob. 1BCCh. 43.2 - Prob. 1TYKCh. 43.2 - Prob. 2TYKCh. 43.2 - Prob. 3TYKCh. 43.3 - What is the population growth per unit of time...Ch. 43.3 - Prob. 1TYKCh. 43.3 - Prob. 2TYKCh. 43.4 - Prob. 1CC
Ch. 43.4 - Prob. 1BCCh. 43.4 - Prob. 2CCCh. 43.4 - Prob. 3CCCh. 43.4 - Which types of factors tend to stabilize...Ch. 43.4 - A species interaction in which one species...Ch. 43.4 - According to the competitive exclusion hypothesis....Ch. 43.4 - Prob. 3TYKCh. 43 - A student decides to conduct a mark-recapture...Ch. 43 - Prob. 2TYCh. 43 - Prob. 3TYCh. 43 - Prob. 4TYCh. 43 - Prob. 5TYCh. 43 - Prob. 6TYCh. 43 - Prob. 7TYCh. 43 - Prob. 8TYCh. 43 - Prob. 9TYCh. 43 - Prob. 10TYCh. 43 - Prob. 1CCQCh. 43 - Prob. 2CCQCh. 43 - A principle of biology is that biology affects our...Ch. 43 - Prob. 1CBQCh. 43 - Prob. 2CBQ
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- For each organism, create a survivorship curve by plotting the given information in a line graph. Title each graph "Survivorship Curve for [name of organism]." The y-axis should be labeled "Survivorship" and contain low, medium, and high indicators. The x-axis should be labeled "Life Span" and contain young, middle-aged, and old indicators. Andean condors reproduce slowly. Females lay one or two eggs every other year. The offspring that hatch are well-protected and cared for, and many reach sexual maturity at five to six years. Although their numbers are being threatened by human impacts, they are naturally long-lived, surviving for seventy to seventy-five years.arrow_forwardHumans have which type of survivorship curve? a. Type I b. Type II c. Type III d. Type IVarrow_forwardThe species to which this population belongs, displays a Type II survivorship curve. True Falsearrow_forward
- Humans are a good example of which of the three types of survivorship curve? Group of answer choices a. Type III b. Type II c. Type Iarrow_forwardPlot by hand the survivorship data for the Gray Squirrel life table. A survivorship curve has age or age class (x) on the x-axis and lx on the y-axis.arrow_forwardIn 2010, 150 coyotes (Canis latrans) were counted in Pierce County, WA. The population was surveyed again in 2017 and it was up to 250 individuals. The population growth rate is 14 coyotes per year. What is the population growth rate at carrying capacity?arrow_forward
- ESTIMATING POPULATION SIZE USING THE LINCOLN INDEX 1. A biologist wants to estimate the size of a population of turtles on an island. He captures 20 turtles on his first visit, and marks their backs with red paint. Two weeks later he returns to the island and captures 25 turtles. Five of these 25 turtles have red paint on their backs. Using the Lincoln index equation, calculate the estimated population 2. Overfishing in Antarctica has resulted in a steep decline in Patagonian toothfish. Fishery scientists are monitoring the population size to see if it is recovering by using the mark-release-recapture method and the Lincoln index equation. On their initial visit, the scientists caught and marked 100 specimens. When they returned on a second visit, they captured a total of 70 Patagonian toothfish. If the scientists estimated the population size was 700, how many of the recaptured toothfish were marked? Show all working.arrow_forwardIn most populations, population size remain near the carrying capacity as long as limiting factors are absent. True or Falsearrow_forwardAn organism has eight offspring and two die every year for four years. What type of survivorship curve does this exemplify? a Type IV b Type I c Type II d Type IIIarrow_forward
- You visit the Apalachicola National Forest and capture, mark and release 30 fence lizards. A week later you return and capture 25 lizards, 5 of which are recaptures from the previous sample. What is your best estimate of the lizard population size?arrow_forwardThere are 10 people in age class 0, 10 in age class 1 and 5 in age class 2. Annual survival rates are S0=0.7, S1=0.5 and S2=0. The fecundities are F0=0, F2=1 and F2=5. What is the asymptotic population growth rate and it is reached after approximately how many years of population growth?arrow_forwardThe mark-recapture method is used to estimate the population size of mountain yellow-legged frogs in the San Gabriel Mountains of southern California. 100 frogs are captured and marked. A week later, 50 frogs are captured, and 10 of them are marked. The total population size isarrow_forward
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