Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Hunter-gatherers > Patch-Choice And Dietary Breadth > Flashcards

Patch-Choice And Dietary Breadth Flashcards

1
Q

What do the two theories constitute?

A

Optimal foraging methods

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

What is the primary principle of optimal foraging methods?

A

An organism will strive to consume the most energy whilst expending the least amount.

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

Who wrote about Patch-Choice in 1995?

A

Kelly

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

How must resources be distributed in Patch-Choice?

A

Heterogeneously

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

How are patches encountered by HG?

A

Randomly

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

At what point will a forager return to a foraged patch?

A

Once the depleted resources come back

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

What is a distinctive characteristic of the time spend moving between patches?

A

That it is unproductive.

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

What wrote about Marginal Value Theorem?

A

Charnev 1976

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

What does Marginal Value Theorem state?

A

That return rates will progressively diminish as a forager exploits the resources is that patch.

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

What will foraging in other patches encourage?

A

A higher yield

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

What is an issue about Patch Choice?

A

Based on assumptions.

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

What assumptions does Patch Choice make?

A

That foragers won’t encounter resources when moving between patches and that patches will be encountered at random.

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

Who influenced dietary breadth?

A

Enhen, MacArthur and Praktea

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

What is Dietary Breadth used to predict?

A

If a forager will take a resource whilst foraging

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

What type of environment does DB assume?

A

One where a forager will exploit resources as the same rate as its prey.

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

If a foragers prey exploits 20% of the resources in an environment in DB how frequently will a forager encounter this prey?

A

20% of the time.

17
Q

What knowledge must a forager have to sufficiently provide according to DB?

A

Knowledge of the different foods available and there densities

18
Q

What two periods is time spent according to DB?

A

Search costs and handling costs

19
Q

What does search costs do?

A

The time spent locating a resource.

20
Q

What are handling costs?

A

The time spent harvesting or pursuing the resource.

21
Q

What does DB rely on?

A

A fine grained environment

22
Q

What does DB rank?

A

The resources available in a given environment.

23
Q

What does DB evaluate?

A

How many of the resources are worth exploiting.

24
Q

What have the Ache of Paraguay been shown to do that constitutes DB?

A

Bypass some resources for others independent of rank.

25
Q

In PC what is a patch?

A

A location where foraging occurs

26
Q

How far can the Ache of Paraguay travel to reach a patch?

A

Up to 4 miles

27
Q

How high does the cal/hour have to be for the Ache to change Patch?

A

1115cal/hour

28
Q

An example of a resource in a patch that is not worth moving for, and one which is?

A

Palm is not worth moving but honey is.

29
Q

What can these theories predict?

A

HG behaviour.

30
Q

What advantages might PC give us when examining HG behaviour?

A

It allows us to see diet and foraging methods if the environmental indicators are present

31
Q

What is the main issue with PC?

A

It is based on assumption

32
Q

What is necessary for PC to be applied archaeologically?

A

Palaeoenvriomental indicators

33
Q

What can DB predict?

A

If a forager will exploit a resource when encountered

34
Q

What does DB rely on to be successful?

A

A fine grained environment

35
Q

What does DB rely on to be applied archaeologically?

A

Complete archaeological indicators

36
Q

What is the main reason DB may be better than PC archaeologically?

A

If the objective of the research is to learn about diet as opposed to foraging areas

Hunter-gatherers (5 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions