For each statement below, write true or false. 1. The current rate of extinction is decreasing significantly. 2. Island species are especially vulnerable to extinction. 3. Only a few factors threaten biodiversity. 4. The primary cause of extinction is loss of habitat. 5. Introduced species make biodiversity stronger and more stabl

For each statement below, write true or false. 1. The current rate of extinction is decreasing significantly. 2. Island species are especially vulnerable to extinction. 3. Only a few factors threaten biodiversity. 4. The primary cause of extinction is loss of habitat. 5. Introduced species make biodiversity stronger and more stabl

Concepts of Biology

1st Edition

ISBN:9781938168116

Author:Samantha Fowler, Rebecca Roush, James Wise

Publisher:Samantha Fowler, Rebecca Roush, James Wise

Chapter21: Conservation And Biodiversity

Section: Chapter Questions

Problem 12CTQ: Describe the mechanisms by which human population growth and resource use causes increased...

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A recent United Nations analysis report gathered data on declines in biodiversity across the world. Using the graphs provided, which statement shows an area of concern and is an alternative to the general hypothesis "Humans are responsible for a significant increase in the extinction rate among species in the world today as a result of damage caused to the environment"? A. Fertilizer use in developing countries should be encouraged to decrease the extinction rate B. Decreasing air pollution in the least developed countries would decrease species survival rate C. Protection of key biodiversity areas should be a priority for developed countries to lower the extinction rate D. Assisting developing countries with more sustainable methods of extraction of living biomass would increase species survival rates
List down the protected areas in REGION 12 (Soccsksargen), PHILIPPINES and the endemic species present in each identified protected area. (Minimum of 5 protected areas and at least 3 endemic species per area.).
Create four different trading cards. Include all of the provided information outlined below. For each card: One Endangered Species, One Threatened Species, One Extinct Species Species name Status Distribution Description of actions leading to decline Recovery plan
3.8 Describe at least three human activities that are currently harming biodiversity as described above. 1. 2. 3.
Which of the following is not true of a population of largepredators in a small reserve?a. The species may disappear from the reserve.b. The species will probably undergo a populationexplosion.c. The species will probably lose genetic diversity.d. The species may overeat its prey, causing a reduction inprey population.
Which of the subsequent options is not included in the red list criteria for species classified as "critically endangered"? 1. The population is projected to decrease by 25% or more within a span of 3 years or 1 generation. 2. The species possesses a limited range of less than 100km2 in a solitary location, and there is evidence of or anticipated habitat loss, fragmentation, ecological imbalance, or significant commercial pollution. 3. The likelihood of extinction exceeds 50% within a timeframe of 10 years or 3 generations. 4. The overall population size consists of fewer than 200 mature individuals.
Figure 19.6 If the major food source of seals declines due to pollution or overfishing, which of the following would likely occur? a. The carrying capacity of seals would decrease, as would the seal population. b. The carrying capacity of seals would decrease, but the seal population would remain the same. c. The number of seal deaths would increase, but the number of births would also increase, so the population size would remain the same. d. The carrying capacity of seals would remain the same, but the population of seals would decrease.
Describe the mechanisms by which human population growth and resource use causes increased extinction rates.
It has been said that humans are a keystone species. Do you agree or disagree with this statement. In a cohesive paragraph, define a keystone species and name and describe three reason why you agree or disagree with the statement "Humans are a keystone species." Be sure to give supporting details and cite your sources. Finish this assignment by providing thoughtful feedback for two of your classmates, discussing their views
In your region, what species are threatened with extinction? Why are they vulnerable? Suggest steps that could be taken to increase their populations.
Which of the indices listed would you use ito answer each of the following questions? Answers choices are on the bottom A-G. Has the fish community changed in Alcyon Lake over time? How many mice are in my house? Is the Cannabis I see growing around this property growing in clumps or in a regular pattern Do Bighorn Sheep populations have higher mortality when juveniles or adults? A. Survivorship B. Petersen Index C. Species Richness D. Diversity Index E. Dispersion Index F. Species Turnover G. Importance Value
Match the following solutions to examples that address problems for biodiversity. Ais-Richtersveld Transfrontier Park The Global wildlife program Haida Gwaii Watchmen Salmon recovery in Terra Nova National Park 1. Land managers have a responsibility to listen to local people's perspectives. 2. Conservation actions are difficult to coordinate between countries. 3. International organizations provide technical and financial support to developing countries. 4. Train and hire local people to work in protected areas.