What does the term "ecological footprint" mean,Jand in what units is it measured? Is the amount of biologically productive land and sea area needed to regenerate the resources that a country needs to regenerate the resources that the country consumes and is measure in global metre (gm) Is the amount of biologically productive land and sea area needed to regenerate resources that a human population consumes, and to absorb and treat the corresponding waste. It is measured in units of global metre (m) Is a country's daily demand on the earth's ecosystems and is measured in global hectares (gha) Is the amount of biologically productive land and sea area needed to regenerate resources that a human population consumes, and to absorb and treat the corresponding waste. It is measured in units of global metre2 (gm2) Is a measure of a person's daily demands on the earth's ecosystems and is measured in global hectares (gha)

What does the term "ecological footprint" mean,Jand in what units is it measured? Is the amount of biologically productive land and sea area needed to regenerate the resources that a country needs to regenerate the resources that the country consumes and is measure in global metre (gm) Is the amount of biologically productive land and sea area needed to regenerate resources that a human population consumes, and to absorb and treat the corresponding waste. It is measured in units of global metre (m) Is a country's daily demand on the earth's ecosystems and is measured in global hectares (gha) Is the amount of biologically productive land and sea area needed to regenerate resources that a human population consumes, and to absorb and treat the corresponding waste. It is measured in units of global metre2 (gm2) Is a measure of a person's daily demands on the earth's ecosystems and is measured in global hectares (gha)

Human Biology (MindTap Course List)

11th Edition

ISBN:9781305112100

Author:Cecie Starr, Beverly McMillan

Publisher:Cecie Starr, Beverly McMillan

Chapter25: Human Impacts On The Biosphere

Section: Chapter Questions

Problem 1SQ

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If the ecological footprint per person of a country or theworld is larger than its biological capacity per person toreplenish its renewable resources and absorb the resulting waste products and pollution, the country or theworld is said to have an ecological deficit. If the reverse istrue, the country or the world has an ecological credit orreserve. See Figure 1.11 for a map of the world’s ecologicaldebtor and creditor countries. Use the data to the right tocalculate the ecological deficit or credit for the countrieslisted. (As an example, this value has been calculated andfilled in for the world.)1. Which three countries have the largest ecologicaldeficits? For each of these countries, why do youthink it has a deficit?2. Rank the countries with ecological credits in orderfrom highest to lowest credit. For each country, whydo you think it has an ecological credit?3. Rank all of the countries in order from the largest tothe smallest per capita ecological footprint.
Mathis Wackernagel and his colleagues at the Global FootprintNetwork continue to refine the method of calculatingecological footprints—the amount of biologically productiveland and water required to produce the energy and natural resourceswe consume and to absorb the wastes we generate.According to their most recent data, there are 1.8 hectares(4.4 acres) available for each person in the world, yet we useon average 2.7 ha (6.7 acres) per person, creating a globalecological deficit, or overshoot (p. 4), of 50%.Compare the ecological footprints of each nation listed inthe table. Calculate their proportional relationships to the worldpopulation’s average ecological footprint and to the area availableglobally to meet our ecological demands. Based on the data in the table, how do you think averageper capita income is related to ecological footprints?Name some ways in which you believe a wealthy societycan decrease its ecological footprint.
Each of the following terms represents a type of economic value we place on the services we get from an ecosystem except one. Which one is NOT an economic value? O O 0 O Provisioning Indirect Bequest Existence Direct
2 (2) WhatsApp O LU 3:Flux of energy and matter th x Cisco Webex Meetings - Meeting x * Ecological Pyramid - Definition, G ecosystems are self sustaining, wi X + i eleap.unimas.my/pluginfile.php/486433/mod_resource/content/0/STF1023_LU3A_FluxEnergyMatterEcosystem_S2%202020-2021_ELEAP.pdf LU 3:Flux of energy and matter through ecosystems 23 / 23 100% + | Activity 1: Food web and energy TIOW Using the food web as shown, create a food chain. Label the producer, primary consumer, secondary consumer and tertiary consumer. What level is directly affected by the sun? Explain the result of removing one organism from the food web that you had just created. Fox Rat Puffin Kittiwake Sand lance If 900 Calories of energy are stored in tissues of zooplankton, how many of these Calories may eventually find their way into tissues of fox (draw your food chain as well)? Gull Cephalopod Krll Phytoplankton Auklet Zooplankton Salmon From the diagram, give ONE (1) example of: 1. Herbivore 2. Carnivore 3.…
Define natural capital. Define natural resourcesand ecosystem services, and give two examples ofeach. Give three examples of how we are degradingnatural capital. Explain how finding solutions to environmental problems involves making trade-offs.Explain why individuals matter in dealing with theenvironmental problems we face. What are threesocial science principles of sustainability? Whatis full-cost pricing and why is it important?
Primary producers Tertiary consumers Secondary consumers Primary consumers and decomposers Which of the following statements is true for different trophic levels in ecosystems? Between 80% and 90% of the energy is lost between most trophic levels. Primary consumers consume less biomass than secondary consumers. Productivity increases with each trophic level. Between 10% and 20% of the energy is lost between most trophic levels. Production of biomass (g/m2/year) 3 30 200 1000
A fishprint provides a measure of a country’s fish harvestin terms of area. The unit of area used in fishprint analysisis the global hectare (gha), a unit weighted to reflect therelative ecological productivity of the area fished. Whencompared with the fishing area’s sustainable biocapacity (itsability to provide a stable supply of fish year after year,expressed in terms of yield per area), its fishprint indicateswhether the country’s annual fishing harvest is sustainable. The fishprint and biocapacity are calculated using thefollowing formulas:Fishprint in (gha) = metric tons of fish harvestedper year/productivity in metric tons per hectare ×weighting factorBiocapacity in (gha) = sustained yield of fish in metrictons per year/productivity in metric tons per hectare ×weighting factorThe following graph shows the earth’s total fishprint andbiocapacity between 1950 and 2000. Study it and answerthe following questions: If biologists determine that this country’s sustainedyield of fish is…
What is the typical shape ofa population growth curve?How can the biotic potentialbe represented in the sameway graphically?
In the short term what willhappen to the levels aboveand below a population ofsecondary consumers of anumeric pyramid if a largenumber of individuals fromthis population dies?
ctional What proportion of energy stored at one trophic level ends up being LOST as it moves to the next trophic level? O 10% O 25% O 50% O 75% O 90%
If you know NPP for an ecosystem, what additional variable do youneed to know to estimate NEP? Why might measuring this variable bedifficult, for instance, in a sample of ocean water?
What percent of the energy stored at one trophic level is stored at the next trophic level? О 10% О 30% 50% O 90%