Mod 1 (L1 + L2) Flashcards
Lecture topics: 4 whys Behavior methods
L1
Ethology
The scientific study of animal behavior (how animals interact with their world and each other
L1
APPLIED ethology
the science of managing the behavior of animals under our care (or that we come into conflict with)
L1
Who are the ‘recorded’ pioneers of ethology
Dead white men
- Karl von Frisch
- Konrad Lorenz (Nazi)
- Niko Tinbergen
L1
What theory did the pioneers of ethology prove first?
Behavior is “adaptive”
What animals do is as much a product of evolution as what they look like
L1
What did Karl von Frisch study
Bees - waggle dance
L1
What did Niko Tinbergen study
Causes and functions of specific behaviors (eggshell removal by gulls)
L1
What did Konrad Lorenz discover?
Imprinting on baby birds
L1
Who is Charles Turner and what did he discover?
Zoologist from 1867-1923. Before the 3 “pioneers”
Discovered that bees can hear and see colour
L1
What are Tinbergen’s ‘4 whys’?
It is a framework for thinking about animal behavior with 4 categories:
Phylogenetic
Developmental
Causal
Functional
L1
What is a PHYLOGENETIC explanation?
- refers to genetic inheritances from previous generations
- eg. the influence of the taxonomic group
- eg. the effects of natural or artificial selection
L1
What category of the ‘4 whys’ does this question belong to:
How does and animal’s evolutionary past in the wild or its history of domestication, affect the behavior?
Phylogenetic question
L1
What category of the ‘4 whys’ does this question belong to:
How do closely related species compare?
Phylogenetic question
L1
What category of the ‘4 whys’ does this question belong to:
What are the effects of sub-species/strain/breed parentage or individual genes?
Phylogenetic question
L1
The duck is quacking because Anseriformes cannot sing; is what kind of example (4 whys)
Phylogenetic example
L1
the sheep is frightened of dogs because of her ancestors evolved surrounded by wolves; is what kind of example (4 whys)
Phylogenetic example
L1
The mouse has a tremor because its strain was created to model Parkinson’s disease; is what kind of example (4whys)
Phylogenetic example
L1
What is a DEVELOPMENTAL explanation?
- accounts for an animal’s behavior in the terms od their previous experience
AND/OR - their developmental stage
L1
What category of the ‘4 whys’ does this question belong to:
How does early experience affect the form/timing of a particular behavior expressed later in life?
Developmental question
L1
What category of the ‘4 whys’ does this question belong to:
How does and animal’s current stage of development affect the for/timing of a behavior?
Developmental question
L1
The piglets are fleeing because they were exposed to high corticosterone levels in utero; is what kind of example (4 whys)
Developmental example
L1
The cat friendly because s/he was well socialized; is what kind of example (4 whys)
Developmental example
L1
What does PHYLOGENETIC and DEVELOPMENTAL together account for?
Together these 2 account for the basic phenotype of an animal
L1
What is a CAUSAL explanation?
- refers to the immediate, current factors and initiate, control, and terminate the behavior (eg. what triggers or terminates a bout of behavior)
- also to underlying mechanism, the ‘how’
L1
What category of the ‘4 whys’ does this question belong to:
How do internal and external factors initiate, maintain, and terminate a behavior?
Causal question
L1
What category of the ‘4 whys’ does this question belong to:
How does it work - what machinery is involved in the behavior?
Causal question
L1
The lynx is eating quickly because she is highly motivated by hunger; is what kind of example (4 whys)
Causal example
L1
The robin is singing because his testosterone levels are high, and because his syrinx vibrates in particular ways when air is expelled over it; is what kind of example (4 whys)
Causal example
L1
The primate is rocking because of altered levels of neurotransmitters in parts of the forebrain; is what kind of example (4 whys)
Causal example
L1
What is a FUNCTIONAL explanations
- refers to the beneficial consequences of the behavior for the animal (and how they outweigh any costs)
L1
What are the 2 functional levels?
proximate and ultimate
L1
What is PROXIMATE function?
Benefits that are quite immediate (and perhaps learned)
short term results
L1
What is ULTIMATE function?
Benefit the evolutionary fitness of the animal
long term results
L1
What category of the ‘4 whys’ does this question belong to:
What are the consequences of a behavior: the net benefits?
Functional question
L1
What category of the ‘4 whys’ does this question belong to:
Does the behavior pattern even have a current function (is it instead manipulative or malfunctional?)
Functional question
L1
What is another term for function?
Utility
L1
What category of the ‘4 whys’ does this explanation belong to:
The animal is grooming to induce opioid release (which we believe ‘feels good’)
Functional - Proximate
L1
What category of the ‘4 whys’ does this explanation belong to:
The birds preen to keep their plumage parasite free
Functional - Proximate
L1
What category of the ‘4 whys’ does this explanation belong to:
Parasite-free plumage helps a male attract mates, and so increases his chance of passing on his genes
Functional - Ultimate
L1
What are 3 reasons the ‘4 whys’ framework is useful?
- It simplifies:
- behavior is the most complex - and most plastic - aspect of n animal’s phenotype - I’s a recipe for thoroughness:
- especially for applied problems - A way of appreciating that different levels of explanation are complementary, not alternatives
L2 (Behavior methods)
What is a hypothesis?
- A proposed explanation ofa pattern or phenomenon that may or may not be true
- We test the hypothesis using specific observations or experiments, to provide evidence for or against it
- There can be more that one hypothesis under test at once (‘competing’ hypotheses)
L2 (Behavior methods)
What makes a good hypothesis?
- Very clear and specific: no waffle!
- Must be empirically testable
-
How? Makes specific predictions that can be tested with data, and that distinguish it from other copmeting hypotheses
- e.g. Tinbergen’s hypothesis of eggshell removal in gulls is due to predation
L2 (Behavior methods)
What are the three main ways to test behavioral hypotheses?
- Experimental: manipulative variables to asses their consequences
- Observational: watch/record animals, and collect data specific to your hypothesis
- Comparative: look for patterbs if relationships across species
L2 (Behavior methods)
What is an ethogram?
A list of precisely described behaviors that are recorded in a study
L2 (Behavior methods)
What is INTRA-oberver reliability?
Intra: within
- means each individual observer is consistent with themseves, i.e has stable criteria and sticks to them
- achieved through practice
L2 (Behavior methods)
What is INTER - observer reliability?
Inter: between
- Means different observers are consistent with each other, e.g. get the same results from the same video
- Achieved through practice
L2 (Behavior methods)
What is habituation?
Pre- exposure that permits unlearned responses to wane
L2 (Behavior methods)
What are 3 different ways to collect behavior data?
- Time sampling: recording a regular, pre-set intervals
- Event recording: scoring all instances, whenever they happen
- Continuous recording: recording a focal animal (for s set time period)
L2 (Behavior methods)
What is an EVENT?
Breif behaviour pattern which are best counted rather than measured in terms of duration (e.g. alarm calls)
L2 (Behavior methods)
What is a BOUT?
Natural chunks or sequences of behavior performed without breaks
(Have a duration that is easily measured)
L2 (Behavior methods)
What is LATENCY?
Time between the presentation of a stimulus/opportunity, and the initiation of a behavior
L2 (Behavior methods)
What is a TIME BUDGET?
Percent (%) of the day (or observation period) spent doing X, Y, or Z behaviors
L2 (Behavior methods)
In a time budget what is the RATE?
Number of behaviours per unit of time
L2 (Behavior methods)
In a time budget, what is PREVALENCE?
Percent (%) of the subject doing X, Y, or Z
L2 (Behavior methods)
What is NON-SYSTEMIC ERROR?
- Factors that affect our results, but don’t bias them in any particular direction
- Sometimes leads to erroneous conclusions, but typically just risks obscuring real results
L2 (Behavior methods)
What are some ways to avoid the inaccuracies caused by non-systemic error?
- All humans are well trained and have good IORs
- The study long, so the odd ****-up doesn’t matter
- The animals are habituated
- The sample size is large so that individual idiosyncrasies don’t have too much effect on the data
L2 (Behavior methods)
What is SYSTEMIC ERROR?
Factors that bias the our findings consistently in one direction… so as to give us ‘fake results’
L2 (Behavior methods)
What are CONFOUNDS?
When experimental treatment groups differ in more than jsut experimental treatment… so then when you get an effect you don’t know why
L2 (Behavior methods)
What are BIASES?
Where the experimenter influences the results (accidently or on purpose)
L2 (Behavior methods)
What are qualities of a good behavior paper?
- have clearly stated hypothesis
- explain why they collected the data they did, and why they used the methods they did
- if reliant on humans for scoring, will have a good ethogram, blinding, and good intra-/inter-observer reliability
- use good sample sizes, and avoid confounds