QUESTIONS 1. What species interactions give rise to uniform distribution pattern? Aggregate? Random? 2. What is the most common type of distribution found in nature? What are the reasons for this? 3. In addition to population distribution, other characteristics of a population include the intrinsic rate of population growth (r) and the carrying capacity (K). Define these two tterms

QUESTIONS 1. What species interactions give rise to uniform distribution pattern? Aggregate? Random? 2. What is the most common type of distribution found in nature? What are the reasons for this? 3. In addition to population distribution, other characteristics of a population include the intrinsic rate of population growth (r) and the carrying capacity (K). Define these two tterms

Biology: The Dynamic Science (MindTap Course List)

4th Edition

ISBN:9781305389892

Author:Peter J. Russell, Paul E. Hertz, Beverly McMillan

Publisher:Peter J. Russell, Paul E. Hertz, Beverly McMillan

Chapter52: Population Ecology

Section: Chapter Questions

Problem 12TYK

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Chapter 12: Population Dynamics over Time Why do populations fluctuate around the carrying capacity rather than staying smooth as suggested by the logistic growth model? How is this related to growth rate and generation time? Explain how delayed density dependence is related to timing of resources and reproduction. Explain on demographic stochasticity and environmental stochasticity are connected to small population sizes and the Allee effect? What is a metapopulation? Explain source and sink models and stepping stone models. How is a metapopulation’s size and isolation related to extinction and colonization rates?
F5 Which option below most likely describes the nature of the pollutant and the trophic levels of each of the three species? 5 Pollutant Concentration (ng/g) 30- O Black squares represent a primary producer, red triangles an herbivore, and blue circles a predator. The pollutant is biomagnifying in the community. Blue circles represent a primary producer, black squares an herbivore, and red triangles a predator. The pollutant is biomagnifying in the community. Red triangles represent a primary producer, blue circles an herbivore, and black squares a predator. The pollutant is causing eutrophication of the lake. Red triangles represent a primary producer, black squares an herbivore, and blue circles a predator. The pollutant is neither biomagnifying nor causing eutrophication. F6 O A 6 E Year F7 F8 & 7 F9 * 8 DELL F10 9 F11 FO O ? F12 PrtScr ap 85°F Clear Insert E
4. Looking at Figure 2.2, what type of age structure is observed during the month of December? What does this imply? 5. Considering Figure 2.2, in which month is the population rapidly increasing? rapidly decreasing? Discuss the environmental factors (i.e. availability of resources and conditions) that affected the population growth of the bee colony. 6. Based on the line graph in Figure 2.2, was carrying capacity reached? Support your answer.
R Q1. The realized niches observed in nature are often larger than the fundamental niches of the organisms being observed. Ⓒ True F5 ➤ 11 Submit Q2. The competitive exclusion principle only applies when the niches of competing species are different (i.e., do not overlap). True 5 Submit Q3. Four snake species colonize an island at the same time. The species are biologically identical in every way and the island is habitable to them. If nothing changes, which of the following options is most likely to happen over time? Submit All four species will coexist because they will divide up the prey on the island. All four species will go extinct because they have identical niches. One species will develop a new realized niche and survive while the others go extinct because of competition. ⒸOne species will persist, but we cannot predict which one; the others will go extinct because of competition. Q4. If four different snake species with identical food and habitat niches colonize an island at…
Match each term with its most suitable description. _____ carrying capacity a. maximum rate or increase per individual under ideal conditions _____ exponential growth b. population growth plots out as an S-shaped curve _____ biotic potential c. maximum number or individuals sustainable by the resources in a given environment _____ limiting factor d. population growth plots out as a J-shaped curve _____ logistic growth e. essential resource that restricts population growth when scarce
Which of the following methods will tell an ecologist about both the size and density of a population? mark and recapture mark and release quadrat life table
A population's. is the specific environment in which it lives. Select an answer and submit. For keyboard navigation, use the up/down arow keys to select an answer. geographical range b growth rate size habitat dynamics Unanswered • 2 attempts left 1 Submit Question 2 Homework • Unanswered Why do species with large body sizes typically have lower population densities? Select an answer and submit. For keyboard navigation, use the up/down arow keys to select an answer. Small organisms have more potential mates. b Genetic diversity is low. There are not enough individuals to grow the population. d. Large organisms do not like living near one another. Each large organism consumes more available resources. Unanswered • 2 attempts left Submit
D.A change in average temperature is a density-dependent factor because fewer organisms can acclimate to variations in temperature. Base your answers to questlons 14-16 on the Information below and on your knowledge of blology. Unless actions are taken to slow the decline of domesticated honeybees and augment [increase] their populations with wild bees, many fruits and vegetables may disappear from the food supply, said Claire Kremen, a conservation biologist at Princeton University in New Jersey... The honeybee decline, which is affecting domesticated and wild bee populations around the world, is mostly the result of diseases spread as a result of mites and other parasites as well as the spraying of crops with pesticides, scientists say. Source: "Bee Declines May Spell End of Some Fruits, Vegetables," National Geographic News, October 5, 2005 14. The decrease in the honeybee population is partly due to A. the use of pesticides B. the use of fertilizers C. a decrease in prey D. a…
Direction: Analyze the situation and tell what limiting factor is being described. Choose in the box below the type of limiting factors. Mortality Natality Emigration Immigration Situation Limiting Factor 1. Every year, there's an increase in the population of migratory birds in Candava. Pampanga. 2. The increase of the population of frogs during rainy days. 3. Russian population decline due to Covid-19 effect. 4. Decrease in the population of birds when they move to another place due to unfavorable weather conditions. 5. The population in the Philippines increases due to teenage pregnancy.
Answer true or false 1. Parasitism, once considered a symbiotic relationship, is now considered a form of predation. 2. Dominant species exert less control over the occurrence and distribution of other species. 3. Members of a population engage in intraspecific competition which is a major factor in limiting both fecundity and survivorship. 4. Dominant species are most competitive in exploiting resources 5. Food webs can be simplified by grouping species with similar trophic relationships into broad functional groups
APPLY YOUR KNOWLEDGE Human populations are subiect to the same population control factors in the environment that mipact natural populations. For example, during the 14th century, the bubonic plague killed approximately one- third of the human population. A. Is the bubonic plague an example of a dènsity-dependent or density-independent factor? Explain. B. Two-thirds of the population survived the bubonic plague, even though many of the survivors were most likely bitten by disease-carrying fleas. In terms of evolution, explain how it was possible to be a survivor. C. Discuss two ways that humans have increased the carrying capacity of their population.
question will save this response. Question 8 What does the Lotka-Volterra model simulate? O mutualistic relationships O predator and prey populations O Leibig's law of the minimum O parasitism risk A Moving to another question will save this response. f2 esc f7 2$ % & 2 # M