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10-5 What is the Ecosystem Approach to Sustaining Biodiversity?

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Presentation on theme: "10-5 What is the Ecosystem Approach to Sustaining Biodiversity?"— Presentation transcript:

1 10-5 What is the Ecosystem Approach to Sustaining Biodiversity?
Concept We can help sustain biodiversity by identifying and protecting severely threatened areas (biodiversity hotspots), restoring damaged ecosystems (using restoration ecology), and sharing with other species much of the land we dominate (using reconciliation ecology).

2 This ecosystems approach employs a _______ point plan ecosystems
Most biologists and wildlife conservationists believe that we need to focus more on protecting ___________________ than on saving individual species Best way to prevent premature extinction of species This ecosystems approach employs a _______ point plan ecosystems 4

3 We Can Use a Four-Point Strategy to Protect Ecosystems
________ global ecosystems and create an _________________ of their species and ecosystem services Locate and protect most ___________________ ecosystems and species…with an emphasis on protecting _____________ biodiversity ______________ degraded ecosystems Make development biodiversity-_______________ Provide tax _________ or write-offs and assistance to landowners who protect endangered ecosystems Map inventory endangered plant Restore friendly breaks

4 Protecting Global Biodiversity Hot Spots Is an Urgent Priority
The earth’s species are not evenly distributed… 17 _____________________ countries contain 2/3 of all species The leading megadiversity countries are… _____________________________ megadiversity Indonesia Columbia Mexico Brazil Ecuador

5 Protecting Global Biodiversity Hot Spots Is an Urgent Priority
Scientists are urging for the adoption of emergency action strategies to identify and protect biodiversity _________ ____________ Areas especially rich in ___________ species that are found nowhere else and are in great danger of extinction Make up only _______ of earth’s surface, but 50% of flowering plant species and 42% of terrestrial vertebrates hot spots plant 2%

6 Endangered Natural Capital: 34 Biodiversity Hotspots
Figure 10.27: Endangered natural capital. This map shows 34 biodiversity hotspots identified by ecologists as important and endangered centers of terrestrial biodiversity that contain a large number of species found nowhere else. Identifying and saving these critical habitats requires a vital emergency response (Concept 10-5). Compare these areas with those on the global map of the human ecological footprint, as shown in Figure 7, p. S38, in Supplement 8. According to the IUCN, the average proportion of biodiversity hotspot areas truly protected with funding and enforcement is only 5%. See an animation based on this figure at CengageNOW. Questions: Are any of these hotspots near where you live? Is there a smaller, localized hotspot in the area where you live? (Data from Center for Applied Biodiversity Science at Conservation International) Fig , p. 243

7 Endangered Natural Capital: Biodiversity Hotspots in the U.S.
Figure 27, Supplement 8

8 Protecting Ecosystem Services
Another way to help sustain the earth’s biodiversity is to protect areas where vital _______________ or _____________ services are being impaired to harm local ________________ ecological natural residents

9 Protecting Ecosystem Services Is Also an Urgent Priority
To protect ecosystem services, we will need to identify highly stressed areas…called _________ ___________ ecosystems High poverty levels Ecosystem services degraded A large part of the economy may depend on ecosystem services Foster cooperation among residents, government and scientists to protect people and biodiversity life raft

10 We Can Rehabilitate and Restore Ecosystems That We Have Damaged (1)
We can partially reverse much of the damage caused by humans to the biodiversity and dynamics and of natural ecosystems through ecological _________________ Examples… Replanting forests Restoring grasslands, coral reefs, and wetlands Reintroducing native species Removing nonnative species restoration

11 Four Approaches to Ecological Restoration
Restoration: returning a degraded habitat or ecosystem to a condition as ________________ as possible to its natural state Rehabilitation: turning a degraded habitat into a _______________ or useful ecosystem Replacement: replacing a degraded ecosystem with ________________ type of ecosystem example: a degraded forest could become a pasture Creating artificial ecosystems: creating an artificial ecosystem to alleviate another ________________ example: creating artificial wetlands to reduce flooding similar functional another problem

12 Science-Based, Four-Point Strategy for Restoration
To carry out most forms of ecological restoration and rehabilitation we need to.. Identify the _________ of the degradation ___________ the abuse ____________________ species, if possible _______________ from further degradation cause Stop Reintroduce Protect

13 Science Focus: Ecological Restoration of a Tropical Dry Forest in Costa Rica
Within Costa Rica’s _________________ National Park, a tropical dry forest was burned Dr. Daniel _______________, a leader in restoration ecology used _____________ money and $ 10 million earned from _________________ to purchase the land He is educating ______________ on how to restore and sustain the area…called __________________ restoration Example: local farmers are paid to plant trees Guanacaste Janzen grant donations locals biocultural

14 Science Focus: Ecological Restoration of a Tropical Dry Forest in Costa Rica
This area has also become a _______________ ground in tropical restoration Dr. Janzen believes that education, _____________, and local ________________ will be more effective restoration practices than using guards and fences training awareness involvement

15 We Can Share Areas We Dominate With Other Species
Since humans have already degraded so much of earth’s land, we may need to develop a new form of conservation biology….called ___________________ ecology Focuses on ______________ and maintaining habitats for species diversity in places where people _______, work, and play In other words, our communities need to find a way ___________ with other species reconciliation inventing live share

16 We Can Share Areas We Dominate With Other Species
Three examples of reconciliation ecology… Wangari Maathai starting the Green Belt Movement with local women in ______________ Belize farmers have created habitat corridors and sanctuaries for black howler _____________ Attracts ecotourism Neighborhoods reducing pesticide use to protect vital plant ________________ like butterflies and bees Kenya monkeys pollinators

17 Case Study: The Blackfoot Challenge—Reconciliation Ecology in Action
1970s: Blackfoot River Valley in Montana was threatened by… poor mining, logging, and grazing practices Water and air pollution Unsustainable commercial and residential development A River Runs Through It

18 Case Study: The Blackfoot Challenge—Reconciliation Ecology in Action
Community meetings led to Weed-pulling ________________ _______________ nesting structures for waterfowl Developing more sustainable _____________ systems parties building grazing

19 What Can You Do? Sustaining Terrestrial Biodiversity
Figure 10.28: Individuals matter. These are some ways in which you can help to sustain terrestrial biodiversity. Questions: Which two of these actions do you think are the most important? Why? Which of these things do you already do? Fig , p. 247

20 Review Question 1 What are biodiversity hotspots?
areas rich in species diversity (especially plants) that are endangered

21 Review Question 2 Complete the steps needed for ecological restoration… Identify… Stop… Reintroduce… Protect… the cause of degradation the abuse key species from future degradation

22 Review Question 3 What is the focus of reconciliation ecology?
To invent new habitats and learn how to “share” with other species


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