Ch. 38 Conservation of Biology

Question 1

Current rapid decline in the variety of life on Earth, largely due to the effects of human culture

Answer 1

Biodiversity Crisis

Question 2

Goal-Oriented science of species preservation

- scientific studdy of how to slow biodiversity crisis

Answer 2

Conservation Biology

Question 3

How does technology affect us?

Answer 3

Advancements place strain on the biosphere. Developed countries are mass consumers with high standard livings that deplete resources.

Question 4

Layers of O3 in upper atmosphere that protects life on Earth from UV rays

Answer 4

Ozone Layer

Question 5

What is depleting the ozone layer?

Answer 5

Chloroflurocarbons are one

Question 6

How has pesticides affected biodiversity?

Answer 6

Chemical pesticides with DDT resulted in biological magnification - accumulation of persistent chemicals in the living tissues of consumers in food chains.

Question 7

What is the cause of global warming?

Answer 7

Fossil fuels creating CO2

Question 8

Warming of atmosphere by gases which absorb infrared radiation and slow the escape from Earth’s surface
- raise temp, melt ice caps, flood, habitats change

Answer 8

Greenhouse effect

Question 9

Small geographic area with an exceptional concentration of species
- extinction hotspot but possible to save lots species tho

Answer 9

Biodiversity Hotspot

Question 10

Found no where else than this small geographic area

Answer 10

endemic species

Question 11

Splitting and consequent isolation of biological populations, usually human-caused habitat degradation

• subpopulations
• decrease population and geneflow

Answer 11

Population Fragmentation

Question 12

Species reproduce success exceeds death rate and new individuals disperse to other areas

Answer 12

Source Habitat

Question 13

Death rate exceeds the reproductive rate

Answer 13

Sink Habitat

Question 14

Scientific analysis of the current status of a population or species and predictions of its chances for long term survival

Answer 14

Population Viability analysis

Question 15

Application of ecological principles to the study of land-use patterns

• scientific study of biodiversity of interacting ecosystem
• species distribution with abiotic distribution

Answer 15

Landscape ecology

Question 16

USed to study organism distribution relative to landscape

Answer 16

Gap Analysis

Question 17

What are edges?

Answer 17

Prominent features of landscapes. The boundaries between areas.

Question 18

A series of small clumps or a narrow strip of quality habitat that connects otherwise isolated patches of quality habitat

• can promote dispersal and help sustain population
• harmful for spread of disease, reduce population from source

Answer 18

Movement Corridor

Question 19

Using ecological principles to develop way to return degraded ecosystems to conditions to the natural state

Answer 19

Restoration Ecology

Question 20

The use of living organisms to detoxify and restore polluted, degraded exosystems

Answer 20

Bioremediation

Question 21

Augmentation of ecosystems processes

Answer 21

1) Check if missing factors are limiting

2) Organisms used to add to the ecosystem

Question 22

Long term prosperity of human societies and the ecosystems that support them

Answer 22

sustainable development