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VISUAL MIMICRY

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Camouflage The insect Phyllium giganteum mimics a leaf to disguise itself Camouflage The praying mantis Hymenopus coronatus uses its elegantly-lobed hind legs and ... – PowerPoint PPT presentation

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Title: VISUAL MIMICRY


1
VISUAL MIMICRY
2
Various kinds of mimicry
  • Batesian mimicry resemblance of harmless species
    to some non-edible species that signals their
    unsuitability to possible predators
  • Müllerian mimicry resemblance of aposematic
    signals of different non-edible species
  • Peckhamian mimicry resemblance of predators
    messages to messages of some species, or to some
    objects, that are harmless to their prey
  • Wasmannian mimicry occurs when the mimic
    resembles it's host in order to live within the
    same nest or structure

3
Batesian mimicry

Harmless hoverflies resemble non-edible wasps
4
Batesian mimicry
5
More Batesian mimicry
  • The toxic sea slug Phillidiella pustulosa (left)
  • is mimicked by a harmless flatworm Pseudoceros
    imitatus

6
More Batesian mimicry
  • The harmless Allobates zaparo (top)
  • mimics the poiseness
  • Epipedobates biliguis (middle)
  • and the even more toxic species
  • E. parvalus whenever these species
  • share their habitats

7
More Batesian mimicry
The venomous coral snake Micrurus fulvius and its
non-venomous mimic the king snake Lampropeltis
triangulum
8
More Batesian mimicry
  • The viceroy butterfly Limenitis archippus (left)
    has evolved to mimic and look like the
    foul-tasting and poisonous monarch butterfly
    Danaus plexippus

9
More Batesian mimicry
  • The filefish Canthigaster valentini (left) mimics
    the unpalatable puffer Paraluterus prionurus

10
More Batesian mimicry
  • The Harlequin Snake eel (Myrichthys colubrinus)
    mimics the Banded sea snake (Laticauda colubrina)
    an extremely toxic species with conspicuous black
    and white warning colouration

11
More Batesian mimicry
  • The mimic octopus (Thaumoctopus mimicus) has the
    ability to mimic other aquatic creatures in order
    to avoid predation

12
Müllerian mimicry
  • Many stinging wasps, like (from left to right)
    Vespula vulgaris, Vespula germanica and Vespula
    rufa share the same or similar black and yellow
    aposematic colour pattern.

13
Müllerian mimicry
  • Subspecies of Heliconius erato
  • (left-hand column) and of
  • H. melpomene on the right.
  • Both species are toxic and form
  • a local mimicry ring from a different
  • area of Ecuador or northern Peru

14
Müllerian mimicry
  • The unpalatable soldier beetles (Cantharidae)
    mimic the distateful lycid beetles (Lycidae) and,
    when flying, the wasp

15
More Müllerian mimicry
  • Unpalatable caterpillors of St. Jacobbutterfly
    mimic stinging wasps and venomous coral snakes

16
The use of black and yellow as a warning sign
(RESEMBLING POISENESS SPECIES)
17
Peckhamian mimicry
  • This anglar fish (Antenarius sp.) displays a lure
    resembling a small fish

18
Peckhamian mimicry
  • In its mouth, the Alligator snapping turtle
    (Macroclemys temminckii)
  • possesses a wormlike projection that is moved to
    attract prey into the turtles mouth

19
More Peckhamian mimicry
  • The orchard spiders (Celaenia sp.) mimic bird
    droppings to look unappatising and attract moths
    by scent

20
More Peckhamian mimicry
  • The bolas spider Mastophora hutchinsoni emits
    chemical attractants that mimic the sex
    pheromones of its moth prey

21
More Peckhamian mimicry
  • Some spiders like the Synemosyninae and the genus
    Myrmarachne mimic ants that they hunt

22
More Peckhamian mimicry
  • Lightning bugs (Lampiridae) have specific flash
    sequences to find eachother. Females of the genus
    Photurus can imitate the flash sequence of
    Photunis females in order to attract male wich
    they will devour .

23
Peckhamian mimicry in carnivorous plants
  • The fly orchid (Ophrys insectifera) and the Venus
    Flytrap, (Dionaea muscipula) attract insects that
    they digest

24
Aposematic colouration(maybe) Im poiseness
  • Sea slugs of the genus The distasteful
    grasshopper
  • Chromodoris Acripeza
    reticulata

25
More aposematic colours(maybe) Im poiseness
  • Warning colours in amphibians and insects

26
Signs of warning(maybe) Im dangerous
  • Beetles like the Staphylinidae (right) and
    Phosphaenus hemipterus (left) mimic scorpions
    that may scare predators.

27
Signs of warning(maybe) Im dangerous
  • Some planthoppers (Homoptera) mimic jumping
    spiders probably to avoid some predators, such as
    ants and even the jumping spiders

28
More signs of warning(maybe) Im dangerous
Madoryx oiclus
Polyphemus Moths
Pleurodema thaul
Papilio troilus
Chaetodon captistratus
  • The false eye-spots in some species may frighten
    off or throw into disorder their predators

29
Wasmannian mimicry
Reichenbachia spatulifer
Araeoschizus sp.
Some beetles mimic ants in order to be provided
with food, shelter and protection
30
Camouflage
  • The moth Datana sp. (Notodontidae) mimics the
    rain forest floor

31
Camouflage
  • The frog Paradoxophyla palmata mimics the mud and
    tree trunks in its environment.

32
Camouflage
  • The insect Phyllium giganteum mimics a leaf to
    disguise itself

33
Camouflage
  • The praying mantis Hymenopus coronatus uses its
    elegantly-lobed hind legs and pink and white
    coloration to camouflage itself amongst the
    native orchid flowers

34
Camouflage
  • The pygmy seahorse Hippocampus bargibanti mimics
    gorgonian corals of the genus Muricella

35
Camouflage
  • The starry flounder Platichthys stellatus makes
    use of melanophores and chromophores to adapt to
    the sea floor

36
Camouflage
  • The great bittern Botaurus stellaris is pretty
    well camouflaged in its natural habitat

37
Camouflage
  • The zebra Equus burchelli and the leopard
    Panthera Pardus may look conspicuous to us but
    are quite difficult to spot at dusk, especially
    when beïng colour-blind

38
Egg-spots
  • Among cichlids the males of maternal
    mouthbrooders wear egg-dummies on their anal
    fin that are crucial to mating
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