Lecture 8 Flashcards

(54 cards)

1
Q

What is to observe

A
  1. Look with attention
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2
Q

Why observe?

A

May bring some benefits for curiosity

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3
Q

What does a question formulate

A

Problem that you want to investigate

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4
Q

What kind of questions can you ask

A

Broad
Based on existing knowledge and theory

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5
Q

What can influence the choice of a particular question

A

Previous knowledge
Interests and observations made in the course of other research
Priorities of the group I’m which you work

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6
Q

Types of observations

A

Direct observations
Invasive, non invasive

Indirect
Non invasive

Preliminary

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7
Q

What can you observe with

A

Own sensorial resources : sound smell vision
Or
Using equipment

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8
Q

Direct observations

A

Observed in real time at the moment in which the behaviour occurs,
Can be made with a present observer , visual, additive

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9
Q

Invasive observation

Disadvantages, how to mirage that

A

Animals know that observer is there
Disadvantages, observer can change the behavioural expression of animal

Work can be done to reduce the impact through habituation or camouflage. Hard cause they can still smell you

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10
Q

Noninvasive

A

Animal can’t see you so doesn’t change their behaviour
Use equipment like camera, microphones, gps collar, radio telemetry, sensors
Sound of equipment can still influence the behaviour like bats and sound waves

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11
Q

Indirect observations

A

Non invasive

Based on consequences of the behaviour. Like foot prints, poop

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12
Q

Example
How much does the cattle eat
How does the cattle eat

A

Indirect observation, known quantity then leftovers
Direct observation

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13
Q

Preliminary observations

A

Make them before starting research to understand both the subject and behaviour you intend to measure

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14
Q

Why are preliminary observations important

A

Provided raw material for formulating questions and hypothesis

Necessary to choose the right measures and recording methods

Promotes habituation of animals to the presence of the observer

Allows the observer to train so that their data is reliable

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15
Q

Hat do you do during preliminary observations

A

Search
Study
Understand
Generate/ refine questions
Search again

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16
Q

Hypothesis formulation

A

Aims to find best explanations for the questions
Larger the number of plausible competing hypotheses that are formulated the better

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17
Q

Example hypothesis to question
Why is the hen without feathers on its back
Example answers

A

The feathers are falling off
Hen is picking at its own feathers
Other hens are picking at her feathers

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18
Q

Predictions formulation

A

More specific the easier it is to distinguish between competing hypotheses

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19
Q

Example of predictions

A

The hens don’t have enough space
The hens aren’t getting environmental enrichment

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20
Q

What is an objective

A

Express the intention or aspiration of the study
Summarizes in a single sentence what you hope to achieve by the end of the research project

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21
Q

Objective kinds

A

General and specific
Example
General is evaluate different causes of feather peaking

Specific
Evaluate the effect of space allowance on the expression of feather picking in hens
Evaluate the effect of environmental enrichment on the expression of feather picking in hens

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22
Q

How to describe behaviour

A

Structure - appearance physical form or temporal pattern of behaviour
or
consequence - the fetching of the subjects behaviour in the environment in other individuals or on itself

Spatial relation. Where or with whom the behaviour is

23
Q

What sorts of categories to choose

A

Enough to describe the behavior in enough detail to answer q
Summarize as much info as possible
Independent of one another

24
Q

Ethogram

A

Catalogue of descriptions of discrete species typical behaviour patterns that form the basic behavioural repertoire of the species

25
What to make sure when defining categories
Clear Comprehensive Unambiguous
26
Types of definitions
Operational Ostensive
27
When are Operational used
Measuring consequences of behaviour
28
Ostensive
Should be sufficiently precise and detailed to enable another observer to record the same things in the same way
29
Types of categories
States: behaviour patterns measured by time. Sleep eat walk , events behaviour patterns iof short duration which can be measures as points in time . Salient feature of events is their frequency. Small, winking localization where animal is. Ear c,and, near drinker posture lying, standing etc
30
What are the variables
Measures of the categories
31
How can you describe behaviour
Nominal or numerical
32
Nominal or categorical scale
Assigning name to measure. Qualitative and active
33
Ordinal or ranking scale
Arranged along a scale according to a common property. Number assigned to each measurement is a rank
34
Interval scale
Scores can be placed on a scale so the distance between two measurements is meaningful 0 point is made up
35
Ratio scale
Highest level of measurement is attained when scale has All properties of an interval scale but has a true zero point Independent of unit of measurement True frequencies , durations and latencies are measured like this
36
Different variable s
Frequency, duration, latency, intensity, velocity
37
Frequency
How many times a behaviour occurs per unit of time
38
Duration
Length of time for which a single occurrence of the behaviour pattern lasts Example how long did the baby pig remains in the maze Time budget, provide info about how animals spend their time, generally presented as the proportion of time that the animal spends in diff activities
39
Latency
Time from some specified event to the onset of the first occurrence of the behaviour Example how long till the baby touches the mama cow
40
Intensity
No universal def Create arbitrary parameters as indices of intensity
41
Velocity
No universal def Example leaving chute flight speed
42
Sampling rules
Defines subject of study Can focus on individuals or groups
43
Types of sampling rules
Ad Libitum Focal Scan Behaviour sampling
44
Ad libitum
Observer notes down what is visible and seems relevant at the time Recording rare and important events and can be important for preliminary No systemic constraints are placed on what is recorded or when Recording is continuous
45
Focal
Observing one individual or litter for a specific amount of time Most satisfactory approach when studying groups Can be difficult in field studies as individual may leave or disappear
46
Scan
Whole group of subjects scanned at intervals and all behaviour at that instant is recorded Usually restricts the observer to recording only one or a few simple categories of behaviour Animals don’t need to be identified Recording g rule must be instantaneous
47
Behaviour sampling
Watching whole group and recording occurs me of a particular type of behaviour Used for recording rare but significant behaviour Often used in conjunction with focal or scan Use continuous recording rule
48
Recording rules
Continuous Time sampling
49
Continuous
Aims to provide and exact and faithful record of behaviour Each occurrence of the behaviour pattern is observed Can be labour and time intensive Measuring true freq and duration and the times ar which behaviours start and stopped
50
Time sampling / interval of time And the division a
Sampling behaviour periodically. End of each sample interval is known as a sample point . Instantaneous sampling One zero sampling
51
Instantaneous
Divide into short intervals Instant of whether or not a given behaviour pattern is occuring
52
One zero
Again divided up into short sample intervals On the instant if each sample point you record whether or not the behaviour pattern has occurred during the preceding sample interval Doesn’t take into account how often or for how long the behaviour pattern happens
53
Pros and cons of time sampling
Doesn’t give accurate estimates of frequency or duration unless the sample interval is short relative to the average duration of the behaviour pattern Not generally suitable for recording sequences of behaviour unless the sample interval is very short
54
The methods should be what
Feasible Relatable and valid