Q6.8. Imagine that after the birds have been living in the city for many years a second big flock of birds arrives. How will the bird population size change in the 10 to 20 years after the extra birds arrive? Choose the graph that best represents how the city's bird population should change over time. (Note: there are still no predators of these birds in the city.) Pop. Size Pop. Size Time Time Pop. Size Pop. Size Time Time

Q6.8. Imagine that after the birds have been living in the city for many years a second big flock of birds arrives. How will the bird population size change in the 10 to 20 years after the extra birds arrive? Choose the graph that best represents how the city's bird population should change over time. (Note: there are still no predators of these birds in the city.) Pop. Size Pop. Size Time Time Pop. Size Pop. Size Time Time

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 5TYK

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Q6.8. Imagine that after the birds have been living in the city for many years a second big flock of birds arrives. How will the bird population size change in the 10 to 20 years after the extra birds arrive? Choose the graph that best represents how the city's bird population should change over time. (Note: there are still no predators of these birds in the city.) Pop. Size . Pop. Size Time Time Submit Answer saved to SimuText server. Pop. Size Pop. Size Time Time
Q6.7. How will the population of birds change over the first few years? The population will grow steadily, gaining a constant number of birds each year. The population will grow more and more rapidly with each passing year. The population will grow steadily for a few years and then shrink steadily back to zero. The population's growth in the first few years will depend on the size of the city.
ch F4 144 $ 4 197 R Q8. Two species of bats colonize an island at the same time. There are similar numbers of moths and beetles on the island, but no other bats. The only difference between the bat species is foraging ability; one is more efficient at catching beetles, and the other is more efficient at catching moths. Which of the below choices will most likely happen over time to the two bat species on the island? Both species will change their fundamental niches and will coexist. The weaker competitor will change its fundamental niche and both species will coexist. The weaker competitor will change its realized niche and both species will coexist. The two species will coexist by occupying different realized niches. Submit F5 Q9. The same two bat species in the previous question live on an island that is forested on one side and shrubby on the other. The bats can survive in either habitat. On the island, most moths are found in trees and most beetles are found in shrubs. Which of the…
Exponential vs Logistic Growth 1200 A 1000 00 600 400 200 02 46 10 12 14 16 18 20 22 24 Year/Generation 26 28 30 1-Which of the two curves exhibits exponential growth? 2-Which of the two curves exhibits logistic growth? 3-Which of the two curves is most likely to occur under natural conditions? 4-What is the carrying capacity of this graph? 5-In what generation does the green population reach its carrying capacity? _ 6-Which population curve would only occur under ideal (perfect) conditions? 7-What do we call factors that stop a population from growing out of control? 8-During which years did graph B show exponential growth? Number of Individuals
The diagrams below show very simplified species relationships for certain areas of African savanna. Recall what the direction of arrows means for each type of diagram. Then use these simplified diagrams to answer the next 3 questions. (Note: Real-world savannas support more species with more complex relationships.) Elephants Trees Trees Savanna Food Web Lions Zebra Shrubs Competition Among Savanna Plants Shrubs Cheetahs Gazelle Grasses Grasses Q5.6. If you removed all the Lions from a large area of savanna, which of the following is a DIRECT effect that could be explained by the diagrams?
Carrying capacity Time Each point on this figure represents a point in time. Which of the following statements about the figure are FALSE? 1O A) Births in the population are nearly equal to deaths at time A. O B) The number of individuals added per unit time is lowest at time B. LO C) Population growth is most limited by the number of individuals in the population at time C, Population size
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
The model of exponential population growth predicts that the per capita population growth rate r: a. does not change as a population gets larger. b. gets larger as a population gets larger. c. gets smaller as a population gets larger. d. is always at its maximum level (rmax). e. fluctuates on a regular cycle.
The per capita growth rate of a population where dispersal is not a factor is expressed as (a) i + e (b) b d (c) dN/dt (d) rN(K N) (e) (K N) K
PROBLEM SOLVING In a survey conducted at the beginning of 2018, a hypothetical country with a total land area of 500,500 square kilometers had a population density of 483.3 per square kilometer.
| 4-Explain "carrying capacity" 5-What type of density independent factors may cause the population to decrease (name 2)? 6-What type of density dependent factors may cause the population to decrease (name 2)? 7-Overall, do deer populations seem to exhibit exponential or logistic growth? Explain why
answeIS a aIc auove Best estimate 26. The graph at the right shows three UN scenarios of future human population growth (in billions). Which of the following most accurately describes this graph? a. We will reach carrying capacity before 2050. b. Two of three scenarios assume population growth rate High projection Low projection in 2050 will be less than in 1970. c. Annual growth rate has been declining since - 1970. d. Current and future growth rates have little influence on future population size. e. Population scientists cannot make reliable population predictions for a population that has barely been studied: more research needs to be conducted. 2 1950 1960 1970 1980 1990 2000 2010 2020 2030 2040 2050 Year Figure 1. United Nations World Population Projections, 1950-2050 Human population size (billions)