BIOL367 Lecture Notes - Lecture 10: Extinction Vortex, Extinction Event, Habitat Destruction

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tealhound605

9 Oct 2018

School

University of Alberta

Department

Biology (Biological Sciences)

Course

BIOL367

Professor

Colleen St Clair

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Document Summary

These are species that are potentially at risk of extinction if nothing is changed. Have political implications focus for how to solve biodiversity loss. They are the delegates to global discussion of biodiversity loss. How close to extinction is this species on a global scale. Criteria are used to put species in 3 categories: critically endangered, endangered and. Must have a recovery plan written to help them bounce back and save their habitat. Extinction of species is just the start of the problem. Greatest loss of species is in the temperate grasslands. Over 75% of a taxa disappears over a short amount of time. Sunny days caused a mass increase in fungus that has wiped out of huge amounts of amphibians around the world. Traits of vulnerable species that make them susceptible to extinction. Consider the way of life of others in what they eat or take for food. Characteristics that you will address in your assign.

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

PLEASE FILL IN THE BLANK

PART1

Investigators want to study the effects of a new growth hormone on mice. To do this, they select a population of mice that are ____________ .

One subset of the group, Group A, receives the newly developed growth hormone. This group is called a ____________ .

One subset of the group, Group C, receives no growth hormones of any kind. This group is called the ____________ .

One subset of the group, Group B, receives an already proven growth hormone. This group is called a ____________ .

Once results are analyzed, the findings show that Group A experiences a 20% increase in growth, Group B experiences a 10% increase in growth, and Group C experiences no increase in growth. These results show that the new growth hormone had ____________ on growth and works ____________ the old growth hormone.

CHOICE OF WORDS:

genetically diverse

test group

better than

control group

gentically identical

no differently than

a positive effect

a negative effect

part2

Defined as variation of life on Earth, ____________ is the number and relative abundance of different ____________ .

It is estimated that there are as many as ____________ species in the world, though as few as ____________ of these species have actually been identified.

As the human population grows and demands more resources, ____________ is threatened.

Human activities contribute to ____________ , especially in the world's coral reefs and tropical rain forests. As a result, some organisms face ____________ , or the death of their species.

Human activity has ____________ the rate of ____________ by a factor of 100 to even 1000, meaning that every day as many as 400 species face extinction.

Humans also face ____________ consequences in that we are dependent on the ecosystems we are destroying for everything from food to raw materials.

Choice of words:

decreased

habitat loss

species

2 million

positive

ecosystems

biodiversity

extinction

negative

increase

1.5 million

BIOL367 Lecture Notes - Lecture 10: Extinction Vortex, Extinction Event, Habitat Destruction

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