Please Do Now If animals are capable of gaining an advantage by communicating dishonestly why havent all animals evolved to be liars Agenda Do Now Video MimicryCamouflage Notes Data Analysis ID: 342886
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Slide1
AIM: SWBAT distinguish between the various kinds of mimicry in the biological world
Please Do Now: If animals are capable of gaining an advantage by communicating dishonestly, why haven’t all animals evolved to be “liars”.Slide2
AgendaDo Now
Video
Mimicry/Camouflage Notes
Data Analysis
Reading/AnnotationSlide3
What is camouflage?the use of any combination of materials or coloration for concealment, either by making animals or objects hard to see (
crypsis
), or by disguising them as something else (mimicry)Slide4Slide5Slide6Slide7Slide8Slide9Slide10Slide11
What is Mimicry?mimicry is the similarity of one species to another which increases the fitness one or both species in areas where they are both
found
It is the result of the environment selecting for that similarity over many generationsSlide12
What do we call organisms involved in mimicry?Mimics are the organisms that have evolved in imitation of something else
Models are the species that are imitatedSlide13
Types of MimicryBatesian: the mimic shares signals similar to the model, but does not have the attribute that makes it undesirable to predatorsSlide14
Types of MimicryMullerian: when two or more species have very similar warning signals and both share genuine anti-predation attributes (more likely predators will learn to avoid them)Slide15
Types of MimicryMertensian: unusual cases where deadly prey mimic a less dangerous speciesSlide16
Types of MimicryWasmanian: the mimic resembles a model along with which it lives in a nest or colonySlide17
Types of MimicryGilbertian: potential host/prey drives away its parasite/predator by mimicking itSlide18
Types of MimicryLuring Mimicry: predator employing signals which draw its potential prey towards it by the promise of foodSlide19
Types of MimicryBrood-Parasite: a situation where a parasite mimics its own hostSlide20
Types of MimicryWicklerian: the mimic resembling a species that is a
mutualist
of the modelSlide21
Types of MimicryCryptic: the predator mimics an organism that its prey is indifferent toSlide22
Types of MimicryInter-sexual: the male of a species mimic the female of the species to sneak
matings
with the femaleSlide23
Worksheet20 minutes to complete, it will be collected
You may
quietly
discuss with a neighbor
Match the scenarios described with the type of mimicry we discussed today
I am here to helpSlide24
ExampleAustralian Cuttlefish (a relative of the Octopus), can be alpha-males, beta-males, and females. Alpha-males fight for the rights to a harem of females. Beta-males, instead of fighting, pretend to be females, and stay with the harem while the alphas are fighting, and then have sex with them. Slide25
ExampleAustralian Cuttlefish (a relative of the Octopus), can be alpha-males, beta-males, and females. Alpha-males fight for the rights to a harem of females. Beta-males, instead of fighting, pretend to be females, and stay with the harem while the alphas are fighting, and then have sex with them.
This is an example of inter-sexual mimicry because a member of one gender is the model for a mimic of the other.Slide26
WYNTKFTQForms of communications
Examples of advantages and disadvantages of those forms of communication
Examples of deceitful communication
Why we trust any communication
Types
of mimicry
(especially,
Batesian
and
Mullerian
)