Concept explainers
If we assume that population density is a good indicator of threat to the environment, which hotspots are not in particularly bad shape now, but are likely to become problematic in the future because their populations are currently growing quickly?
To determine The hotspots, which are not in bad shape now but is likely to become problematic in the future due to the rapid increase in their populations.
Introduction: Population density is the measure of the total number of individuals per unit area. Population growth and size are regulated by different density-dependent and independent factors. These factors interact with each other to give various patterns of increase in population.
Explanation of Solution
The conservation of the hotspots or endemic species-rich areas is essential to protect the world’s biological heritage. The rapid increase in the human population leads to capturing the hotspot area where the endemic species exists because of the increasing birth and death rates of the human population along with the high immigration into these areas. The human migration in hotspots leads to habitat destruction.
In Madagascar, a total of 90 % of the original forest has already been lost. Another example is the forests of the Atlantic coast of Brazil, where the increasing rate of deforestation has led to the loss of 95% of the original forest. The hotspots where the population density is low today are Choco, tropical Andes, Madagascar, and Indian Ocean Islands. The hotspot with a high population growth rate is Brazilian Cerrado.
Want to see more full solutions like this?
Chapter 58 Solutions
BIOLOGY
- 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) Karrow_forwardHow does the study of population ecology help us understand why some populations grow, some remain stable and others decline? The human population has grown as we have increased our global carrying capacity. In your opinion, can the global carrying capacity continue to increase/ Explain your answer? Why has human population growth, which increased exponentially for centuries, started to decline in the past few decades?arrow_forwardWhat is rapid prolific growth of population known as?arrow_forward
- If a disease is destroying barley plants in a field swept through an ecosystem What type of limiting factor would the disease before the Barley eating bird population density dependent or density independent and why?arrow_forwardA good number of snail population in the stagnant waters between rice paddies is growing under natural conditions with limited resources. As the snail population increases in size, how will population density affect its growth rate? a. Population density will increase and the rate of population growth will eventually slow. b. Population density will remain constant and population growth will increase. c. Population density will become unstable and population growth will stop. d. Population density will decrease and population growth will eventually increase.arrow_forwardHow does the study of population ecology help us understand why some populations grow, some remain stable, and others decline? a.) Why has human population growth, which increased exponentially for centuries, started to decline in the past few decades? b.) What is carrying capacity? Do you think carrying capacity applies to people as well as to other organisms? Why or why not?arrow_forward
- A population is expected to grow exponentially after a severe population bottleneck. when the population size is exceeding the carrying capacity of the environment. when the population size is close but below the carrying capacity of the environment. when the birth rate changes as a function of the populationarrow_forwardIf a population composed of 100 individuals is growing exponentially with a per capita growth rate (r) of 0.31, how many individuals will be added to the population during the next time period?arrow_forwardDescribe what the ramifications of this population growth will be in your area and what specific technological improvement should be done in your area to ensure the continued survival of humans.arrow_forward
- The human population growth rate has been getting smaller in the last few decades. Which of the following is the primary cause of this decline? Group of answer choices a. decreasing birth rate b. increasing death rate c. increasing r d. lack of resourcesarrow_forwardhow population curve explain the trend in its growth?arrow_forwardgiven an annual growth rate of 1.5%, how long would it take a population of 5 billion to grow to 10 billion?arrow_forward
- Biology (MindTap Course List)BiologyISBN:9781337392938Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. BergPublisher:Cengage Learning