Chapter 11 ~ Biodiversty Flashcards

You may prefer our related Brainscape-certified flashcards:
1
Q

What is biodiversity?

A

It refers to the variety of living organisms within an area

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What are the three different types of biodiversity

A

Habitat species and genetic

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Explain habitat diversity

A

Number of different habitats within an area

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Create a habitat diversity leads to

A

Great species by diversity

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Give some examples of habitat bio diversity

A

Sand dunes, Woodlands Meadows and streams

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What is species biodiversity?

A

It is the variety of species living within an area

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

How is species diversity broken down into?

A

Species evenness and species richness

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Explains species richness

A

Number of different species living in a particular area

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Explain species even less

A

Comparison of the number of individuals of each species living in a community

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Explain genetic diversity

A

The variety of jeans which make up a species

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What are the two methods of sampling?

A

Random sampling and non-random sampling

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

What is random sampling?

A

Selecting individuals by chance it can be done by our computer or just random tables

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Explain non-random sampling

A

It is not random and it is broken down into three techniques opportunistic stratified and systematic

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Explain opportunistic sampling

A

Uses organisms which are available

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Explains stratified sampling

A

Populations are divided into a number of strata which is based on a particular characteristic and then a random sample taken from each of these strata proportional to its size

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Explains systematic sampling

A

Areas within an overall habitat is identified. They are then samples separately using a line transact of belt transact

17
Q

What are the 4 ways of sampling animals?

A

Pooter
Sweet nets
Pitfall traps

18
Q

Explain how to use a pooter

A

You suck on a mouthpiece with where insects are drawn into the holding chamber by the inlet tube it is used to catch small insects

19
Q

Explain how to use sweeping nets

A

You catch insects in areas of long grass

20
Q

Explain how to use a pit full trap

A

You catch more insects like spiders and slugs are hole is dug in the ground where insects fall into

21
Q

How do you sample. Plants and what are the two types?

A

Quadrats
Point quadrat and frame quadrat

22
Q

Explain point quadrat

A

A frame has a horizontal bar which intervals along the bar long pins are pushed through the bar which reached the ground. Each species of the plant in the pin touches is

23
Q

Frame quadrat

A

Square frame is divided into a grade of equal section type a number of species within each section of record

24
Q

Frame quadrat is used to sample the population of plants living in a habitat and it’s done by

A

Density
Frequency
Percentage cover

25
Q

How do you calculate bod diversity?

A

Using the Simpsons index of diversity

26
Q

What are factors which affect genetic pay diversity?

A

Mutations which can create a new allele
Interbreeding
Selective reading
Natural selection

27
Q

What is the formula for the proportion of polymorphic gene loci

A

Number of polymorphic gene Lokai divided by the total number of Loki

28
Q

If the polymorphic gene locate is greater than the genetic diversity is

A

Greater

29
Q

What are the three main factors which affect by a diversity?

A

Human population growth
Agriculture
And climate change
Also deforestation

30
Q

What are the reasons for maintaining bod diversity?

A

Aesthetic
Economic and ecological

31
Q

What are the aesthetic reasons?

A

To protect landscapes

32
Q

Economic reasons

A

To reduce soil depletion

33
Q

What are the ecological reasons?

A

To protect the keystone species and maintain genetic resource

34
Q

What are the two main categories? Scientist tried to maintain bod diversity conservation?

A

in situ conservation
Ex situ conservation

35
Q

What is in situ conservation?

A

It takes place within an organisms natural habitat it maintains a genetic diversity and maintains evolutionary adaptations which enable a species to adapt continuously to changing environmental conditions
Examples include wildlife reserves and marine conservation sounds

36
Q

What is ex situ conservation?

A

Removal of organisms from their natural habitat
Examples include botanic gardens seed banks in captive breeding programs

37
Q

What is CITES agreement?

A

Agreement between countries to regulate the trade in threaten species agreement makes it illegal to kill or trade endangered species

38
Q

What is the CBD agreement?
Also known as the Rio convention on biological diversity

A

Is the international pact to share responsibility for conserving biodiversity? It aims to develop strategies and guidance to government to use the resources sustainable

39
Q

What is the county stewardship scheme? Also also known as CSS?

A

Protect wild areas and it pays landowners to implement techniques such as growing hedge grows to increase by diversity