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Animal Behavior 2014
Flashcards for Test 2 Material
122
Biology
Undergraduate 4
11/03/2014

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Term
juvenile hormone (JH)
Definition
nonsteroidal terpenoid
produced by corpora allata (glands posterior to brain)
behavioral roles: induces behavior of sex pheromone production, caste differentiation in social insects, parental care
Term
ecdysone
Definition
steroid
secreted by prothoracic glands
regulates molting (shedding of exoskeleton/exdysis) and egg production
Term
prothoracitropic hormone (PTTH)
Definition
peptide
produced by brain
stimulates prothoracic glands to secrete ecdysone
Term
which stage of the molt cycle is stimulated under the following contidions:
-high JH
-low/diminished JH
-no JH
Definition
-another larval stage
-pupal stage
-adult stage
Term
pheromone (definition)
Definition
chemical messenger between individuals of the same species
Term
name the sensory systems in animals
Definition
-vision -sound -thermal perception -chemoreception -mechanoreception -electroreception
Term
monochromatic vision (definition)
Definition
a common vision type in animals that are active only at dawn/dusk; contains only one receptor for detection of presence/absence of light
Term
perception of images depends on what?
Definition
the number of receptor cells per unit area of the retina
Term
flicker fusion (definition)
Definition
how rapidly an animal can process motion as separate images, similar to the shutter speed on a camera
Term
which of the sensory systems is able to move through a vacuum?
Definition
vision
Term
T/F: sound travels more slowly in a denser medium
Definition
FALSE: sound travels more quickly in a denser medium
Term
intensity (definition)
Definition
the energy incorporated into sound; what we perceive as "loudness"
Term
echolocation
Definition
using a high frequency/low wavelength sound to perceive surroundings
such a sound is likely to bounce off of objects instead of traveling around them
Term
infrasound
Definition
low frequency sounds that can travel well in the ground are used for communication between animals
the receptor should be large - infrasound is used by elephants to communicate
Term
give an example of thermal perception
Definition
pit vipers have a "pit organ" near the nose that senses infrared radiation; this can pick up a source of heat especially against a cool background
Term
mechanoreception involves what structure?
Definition
a pressure-sensitive nerve cell
Term
give an example of mechanoreception
Definition
the "lateral line" in fish, responsive to water pressure
Term
electroreception is common in what kinds of animals and why?
Definition
fish and amphibians, stimulated by the need in water environments
Term
the modern approach to behavioral development/learning includes what two concepts? which schools of thought support each concept?
Definition
- recognition of general principles of learning (behaviorism)
- species-specific limitations on learning; innate tendencies to learn certain things (ethnology)
Term
in evolutionary context, learning can be an example of _______
Definition
phenotypic plasticity
Term
T/F: once learned, all behaviors are equally plastic
Definition
FALSE
Term
canalization (definition)
Definition
the degree to which the development of a trait is resistant to modification by experience and the environment
Term
sensitive periods in behavioral development
Definition
periods when certain experiences have a maximum effect on behavioral development
Term
imprinting (definition)
Definition
learning restricted to a relatively short period of an individual's life
Term
social imprinting (definition)
Definition
learning appropriate objects for social responses
Term
what are the four types of social imprinting?
Definition
- filial: process by which young animals become socially bonded to their parents
- species: learning process by which the young become socialized to their species
- olfactory: imprinting based on a scent; in some cases this can happen before birth
- auditory
Term
give an example of filial imprinting
Definition
precocial birds have a tendency to follow their parents around soon after birth
Term
T/F: imprinting is irreversible once set
Definition
FALSE
Term
taming (definition)
Definition
loss of fear due to repeated exposure
Term
T/F: imprinting is a preference rather than an exclusive response
Definition
TRUE
Term
mate recognition/conspecifics (definition)
Definition
the preference for mating in members of the same species; the basis of reproductive isolation
Term
give an example of mate recognition and explain how it relates to imprinting
Definition
by imprinting on their mother, male mallards have an image of what type of animal to court when older.
female mallards are more interested in males that are interested in/attempt to court them, even if they are raised isolated from other members of their species.
Term
give an example of olfactory imprinting
Definition
rats become imprinted to their mothers due to the scent of citrol introduced to them while in the womb. newly born rats can find their mother using this scent before their eyes open
Term
give an example of auditory imprinting
Definition
songs in crown sparrows develop 30-50 days after hatching if a live tutor is used for imprinting, compared to ~100 days if the hatchlings learn via recorded tunes
Term
auditory feedback (definition)
Definition
an important learning method where the animal learns by hearing itself
Term
learning (definition)
Definition
a relatively permanent change in response over time as a result of practice or experience
Term
what are the five factors that affect learning ability?
Definition
- temperment/emotional reactivity: the concept that animals that are more emotionally reactive will learn more slowly
- motivation to explore: species differ with regards to exploratory tendencies
- motivation for rewards: learning occurs more rapidly when animals are motivated to receive rewards
- structural/sensory biases
- psychological biases
Term
give an example of temperment/emotional reactivity in animals as it pertains to learning
Definition
lab rats are better than wild rats at learning in an experimental setting, as they are more tame and less fearful
Term
give an example of how motivation to explore affects learning
Definition
domestic goats are more likely to explore than domestic sheep are, perhaps due to their evolutionary niche
Term
reinforcement (definition)
Definition
factors, events, or experiences that increase the likelihood that a behavior will occur
Term
positive reinforcement
Definition
giving the animal something it wants
Term
negative reinforcement
Definition
removing something that the animal doesnt want
Term
punishment (definition)
Definition
factors, events, or experiences that decrease the likelihood that a behavior will occur
Term
positive punishment
Definition
adding something adverse/unpleasant to decrease the likelihood of the behavior
Term
negative punishment
Definition
removing something the animal wants
Term
habituation (definition)
Definition
persistent decrease in frequency and/or integrity of a response due to repeated stimulation in the absence of reinforcement/punishment
Term
classical conditioning (definition)
Definition
learning based on association of a previously neutral stimulus and a stimulus that elicits an unconditioned response
Term
operant conditioning (definition)
Definition
instrumental conditioning involving the voluntary responses controlled by the animal
Term
give an example of operant conditioning
Definition
ungulates initially try to suckle almost any object that encounters the muzzle. over time, milk stimulates positive reinforcement so that they suckle only on the mother
Term
operant rate (definition)
Definition
the frequency with which any behavior is exhibited
Term
how can the operant rate be increased or decreased?
Definition
through reinforcement or punishment presented during or soon after a response
Term
skinner box (definition)
Definition
an apparatus used by comparative psychologists to study operant conditioning
Term
what are the two types of reinforcers?
Definition
primary - have biological reinforcing properties
secondary - arbitrary stimuli associated with primary reinforcers in space and time
Term
T/F: timing of the reinforcement or punishment is important in operant conditioning
Definition
TRUE
Term
conditioned taste aversion (definition)
Definition
when an animal associates the taste of a food with subsequent illness/nausea, even if the induced feelings don't occur right away
Term
T/F: conditioned taste aversion doesn't require the need for immediate reinforcement/punishment
Definition
TRUE
Term
ethogram (definition)
Definition
definitive list of behavioral repertoire of an animal species
definitions of behaviors in a way that permits unambiguous classification
Term
time budget (definition)
Definition
documentation of the proportion of time spent in each available activity
Term
T/F: time budgets can be compared across categories such as gender, seasons, habitats, etc
Definition
TRUE
Term
what major research questions do researchers use in regards to behavioral rhythms?
Definition
- what is the role of the external environmental events on maintaining temporal rhythms of behavior/physiology?
- what is the role of internal (endogenous) rhythms of molecular & physiological function that are independent of external influences?
- where in the organism do endogenous rhythms originate?
Term
zeitgeber (definition)
Definition
periodic environmental events that control ("entrain") biological rhythms
Term
circannual rhythm (definition)
Definition
an endogenous rhythm of about a year; zeitgeber is naturally brought to phase with seasonal changes in day length or temperature, which sets the biological clock
Term
circadian rhythm (definition)
Definition
endogenous rhythm of about 24 hours
the light cycle serves as a zeitgeber; in absence of light cycle, circadian rhythm will shift from original pattern
Term
T/F: adjusting circadian rhythm to a change in zeitgeber can take a long time
Definition
TRUE
Term
T/F: circadian rhythms can be set for cycles other than 24 hours
Definition
TRUE, [BUT] only if it is between 21-27 hours. cycles vastly different from 24 hours cannot be set to circadian rhythm
Term
what is circadian rhythm in mammals dependent on?
Definition
normal SCN functioning in the hypothalamus
Term
what does the SCN secrete and when?
Definition
"locomotor activity factor" at one L:D phase and "locomotor inhibitory factor" at another phase
protein called prokinectin
Term
T/F: once the SCN from an animal is removed, the circadian rhythm cannot be restored
Definition
FALSE: grafting SCN cells from another host can restore circadian rhythm
Term
T/F: rod and cone cells are involved with circadian rhythm
Definition
FALSE: rod/cone cells are not involved, but "entraining light receptors" are used
Term
where are the light receptors for L:D cycle adaptation located in non-mammalian vertebrates?
Definition
the brain
Term
what are some of the functions of the pineal gland?
Definition
maintaining biological rhythms in vertebrates
secreting melatonin, which affects seasonal rhythms, mainly at night
Term
what important concept does habitat destruction highlight?
Definition
that animal species are incapable of adapting to new habitats if their original one is destroyed
Term
source population (definition)
Definition
an area where the population grows
Term
sink population (definition)
Definition
an area where the population declines
usually habitats of poorer quality for the species
Term
T/F: individuals that inhabit sink populations are often able to move into a source population
Definition
FALSE: individuals in sink populations are unable to compete for access to better quality habitats
Term
territory (definition)
Definition
any area defended for some length of time
Term
what does territoriality allow for in individuals?
Definition
defense of portions of habitat and exclusion of other members of the same or sometimes different species
Term
give an example of mutually beneficial communication between species
Definition
cleaner fish
Term
communication (definition)
Definition
signal produced by an organism/sender that alters the probability of a behavior occurring in another organism/recipient in a manner adaptive to sender and sometimes to recipient
Term
what does communication depend on?
Definition
the structure or function of sense organs that differ among species
Term
what does the evolved signal function confer upon the organism and how?
Definition
selective advantage
fitness advantage
conferred by behavior
Term
what makes communication deceitful or manipulative?
Definition
it is advantageous to the sender but not the recipient
Term
what is an example of behaviors that are affected by non-communicative behaviors?
Definition
greedy eaters ("monkey see, monkey do")
Term
blind snakes following ant scent trails is an example of what?
Definition
an animal responding to signals emitted by another species for communication
Term
what is an example of an unintentional signal that isn't an action?
Definition
sexual dimorphism
Term
sensory modality - visual
Definition
signal range - medium
range of transmission - fast
flows around barrier - no
fade out time - fast
locatability of sender - easy
risk of exploitation - high
Term
sensory modality - auditory
Definition
signal range - long
rate of transmission - fast
flow around barrier - yes
fade out time - fast
locatability of sender - fairly easy
risk of exploitation - medium
Term
sensory modality - olfactory
Definition
signal range - long
rate of transmission - slow
flow around barrier - yes
fade out time - slow
locatability of sender - difficult
risk of exploitation - low
Term
sensory modality - tactile
Definition
signal range - very short
rate of transmission - fast
flow around barrier - no
fade out time - fast
locatability of sender - easy
risk of exploitation - low
Term
pheromones (definition)
Definition
olfactory signals that have specific behavioral or physiological effects on conspecifics
Term
T/F: pheromones usually involve one compound that has multiple reactions with hormones
Definition
FALSE: pheromones generally involve more than one compound and have more complex reactions than hormones
Term
what two types of skin glands are found in mammals?
Definition
sweat and sebaceous
Term
scent glands are modified _____
Definition
sebaceous glands
Term
where will glands be located on an animal?
Definition
different parts of the body based on the species
common locations: groin, abdomen, head, anal, prepucial
Term
what kind of info can scent glands give about the animal?
Definition
sex, reproductive condition, dominance
Term
what are olfactory receptors?
Definition
cell-surface protein receptors on olfactory epithelium for detection of odorant molecules
Term
T/F: the human genome has more olfactory genes activated than the gorilla genome
Definition
FALSE:
human genome - 70% inactivated
gorilla genome - 50% inactivated
Term
discrete signals
Definition
a yes/no signal
Term
graded signal
Definition
falls on a continuum of varied intensity
Term
redundancy (definition)
Definition
when animals frequently communicate the same signal through multiple sensory modalities
Term
what is Darwin's Principle of Antithesis
(expression of emotions in man and animals)?
Definition
when an animal reverses its motivation, the associated signals are also reversed
Term
what is mutualistic communication?
Definition
when communication is beneficial to both sender and receiver
Term
who proposed the idea of deceit communication??
Definition
Krebs and Dawkins
Term
who proposed the "handicap principle"?
Definition
Zahavi
Term
who proposed assessment/management communication?
Definition
Owings and Morton
Term
what theories of communication were proposed by Zahavi?
Definition
natural selection should favor honest communication, being able to distinguish between truth and lies
Term
handicap principle (definition)
Definition
a reliable indicator that supports honest communication - a true fitness advantage would take more work to fake than the deceit would be worth
Term
assessment (definition)
Definition
when each individual assesses the environment including behavior of conspecifics
Term
management (definition)
Definition
when each individual tries to control the behavior of others
Term
what is a sensory system?
Definition
a set of sense organs that act as tranducers to convert various forms of energy in the environment into action potentials
Term
what is the path of chemoreception?
Definition
chemicals dissolve in fluid of a fluid-covered membrane -->
the chemical itself or an intermediate chemical messenger binds a receptor -->
action potential is induced
Term
where is chemosensory tissue found in insects?
Definition
specialized depressions on the animal's surface
Term
where is chemosensory tissue found in vertebrates?
Definition
olfactory epithelium
taste buds
jacobson's organ (roof of mouth for reptiles, mammals, amphibians)
Term
in mammals, Jacobson's organ is specifically sensitive to what?
Definition
pheromones, especially sexual
Term
flehmen (definition)
Definition
stereotyped or exaggerated posture assumed by mammals perceiving odors by means of jacobson's organ
Term
where does jacobson's organ connect in most vertebrates? in squamates?
Definition
vertebrates - nasal cavity
squamates (lizards and snakes) - roof of mouth
Term
what is the path of light/visual perception?
Definition
retinal pigment absorbs photons, changes energy state -->
change in protein conformation (opsin) -->
depolarized cell
Term
which group of organisms have light-sensitive cells?
Definition
cnidaria (jellyfish, anemonies) and flatworms
Term
what is the structural difference between animals that have light perception and animals with vision perception?
Definition
animals with vision perception have their light sensitive cells concentrated on the retina (light-sensitive surface)
light is focused on the retina by one or more lenses
Term
what kinds of light sensitive cells are found in vertebrates?
Definition
rods (low light)
cones (high light)
Term
color refers to what?
Definition
the way we see the spectrum of light wavelengths
Term
non-spectral colors
Definition
a combination of two or more wavelengths of light
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