BIOL 3130 Lecture : Conservation Biology - 4. Five Riders of the Apocalypse

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ochreherring44

23 Mar 2012

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4. five riders of the apocalypse primary cause of biodiversity loss: habitat degradation ( Restoration and recovery (secondary cause of biodiversity loss: habitat fragmentation. The reduction of area covered by the habitat type; smaller population size. Vulnerable species: rare, large home ranges, limited dispersal, demographic. Gene flow (transplants, transport) bring in other populations. Release of stored carbon; 30% more atmospheric co2 than prior to the industrial. Altered temperatures & precipitation: where, when, and how much. Reduced emissions, reduced consumption, increased carbon sequestration (removing carbon from the environment, alternative energy supplies (solar, wind, thermal) All affect the mechanisms that create and maintain biodiversity, all systems usually undergo all these 5 effects simultaneously. Each can change the intensity, direction, and outcome of biotic interactions, within and across trophic levels (ex: eliminating predators results in uncontrolled herbivores leading to a brown wold) Fertilization by higher co2 and eutrophication, combined with more productive invaders.

Related Questions

This part of the activity focuses on some of the key methods that have been useful in protecting endangered species and protecting biodiversity, including hunting and fishing regulations, creating parks and refuges, the Endangered Species Act, and recovery plans that aim to protect the habitat of rare or endangered species. As an example, there are many rare and unique species of both plants and animals in New Zealand. Nearly 1,000 years ago, though, colonists to the area introduced rats and other invasive species of plants and animals that began to harm the native ecosystems. At Kapiti Island, a recovery plan created a wildlife refuge, eliminated the non-native species such as goats, pigs, rats, and dogs and brought back native plants and animals such as the Kiwi bird. Instructions Review the Case Study at the beginning of Chapter 11, entitled âHow Can We Save Spotted Owls?â and Section 11.1, entitled âBiodiversity and the Species Conceptâ and Section 11.2, entitled âWhat Threatens Biodiversity?â Spotted owl populations have suffered from habitat destruction, while native species in New Zealand have suffered from invasive species; these are two types of threat to biodiversity. Consider other threats as put forth in Chapter 10, as well as the implications of biodiversity loss for humans. Open Google Earth, and in the search box enter: Kapiti Island, Wellington, NZ. Click Search. 1. How big is Kapiti Island? Zoom way in and explore the island some. What evidence is there that this island is being preserved as a natural area?

This part of the activity focuses on some of the key methods that have been useful in protecting endangered species and protecting biodiversity, including hunting and fishing regulations, creating parks and refuges, the Endangered Species Act, and recovery plans that aim to protect the habitat of rare or endangered species. As an example, there are many rare and unique species of both plants and animals in New Zealand. Nearly 1,000 years ago, though, colonists to the area introduced rats and other invasive species of plants and animals that began to harm the native ecosystems. At Kapiti Island, a recovery plan created a wildlife refuge, eliminated the non-native species such as goats, pigs, rats, and dogs and brought back native plants and animals such as the Kiwi bird. Instructions Review the Case Study at the beginning of Chapter 11, entitled âHow Can We Save Spotted Owls?â and Section 11.1, entitled âBiodiversity and the Species Conceptâ and Section 11.2, entitled âWhat Threatens Biodiversity?â Spotted owl populations have suffered from habitat destruction, while native species in New Zealand have suffered from invasive species; these are two types of threat to biodiversity. Consider other threats as put forth in Chapter 10, as well as the implications of biodiversity loss for humans. Open Google Earth, and in the search box enter: Kapiti Island, Wellington, NZ. Click Search. How far is Kapiti from the mainland of the North Island? Does this distance make it harder or easier to keep non-native species out of the nature preserve on the island? Be sure to explain why

1) For each of the threats above, come up with a) one potential solution and b) a potential drawback or complicating factor to this solution.

1.Climate Change

2.Invasive species

3.Overexploitation

4.Habitat loss /degradation

5.Pollution

BIOL 3130 Lecture : Conservation Biology - 4. Five Riders of the Apocalypse

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