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4583545
Fleas
Descripción
Undergraduate (Parasitology) Veterinary Medicine Mapa Mental sobre Fleas, creado por elenifraser el 19/02/2016.
Sin etiquetas
verterinary science
veterinary medicine
parasitology
undergraduate
Mapa Mental por
elenifraser
, actualizado hace más de 1 año
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Creado por
elenifraser
hace alrededor de 8 años
15
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Resumen del Recurso
Fleas
Key Species
Ctenocephalides felis
Nota:
This is REALLY COMMON! Found on dogs, humans etc.
Cat Flea
Life Cycle
Nota:
More details on life cycle in book.
Adult
Egg
Larvae
Cocoon
Nota:
Sticky silken cocoon that debris sticks to 0.5cm long
Adult
This stage can last between 1 & several weeks.
Yellowish
2-5mm
Maggot like
Bristley
Chitinous mouthparts
Anal struts
Nota:
Used with the bristles for vigorous motility.
Negatively phototropic so hide in carpets / under furniture
Nota:
They feed on flea dirt Grow to 5mm - 2 moults In 1-7 weeks - temperature dependent. Susceptible to dessication.
Starts laying after 1-2 days
Eggs drop to the ground within a few hours as they're not sticky
What does pelage mean?
Fur / feathers
Uses changes in light intensity, warmth & CO2 to locate hosts
Almost permanent!
Transfer: mostly adult unfed fleas from the environment
Som transfer due to close contact with another host animal
Life span = 7-10 days dependant on grooming habits
Ctenocephalides canis
Nota:
Relatively uncommon
Dog Flea
Ceratophyllus gallinae
Nota:
Common on poultry but can also be found on wild birds, pets & humans.
Poultry Flea
Pulex irritans
Nota:
Uncommon / rare
Human Flea
Spilopsyllus
Nota:
Wildlife flea but especially on rabbits. Also found on pets.
Rabbit flea
General features
Wingless insects
Laterally flattened
Nota:
WHY? So that they can fit between hairs!
ADULTS: Blood sucking ectoparasites
Why are they a problem?
Nota:
Normally a problem when there are large numbers of them!
Pruritis
Anaemia
Annoying!
Allergies to flea saliva
Just a few bites can trigger a reaction
Intermediate hosts for tapeworm
Nota:
Dipylidium
Flea dirt = faeces
Identification
Nota:
Notes in book are better!
Aided by rows of chitinous spines
COMBS / CTENIDIA
Chin combs
Genal
Back of head combs
Pronotal
General appearanace -->
Nota:
2-4 mm Small Dark brown Long hind legs Laterally compressed
Key differences between cat & dog fleas
C. canis
Streamlined head
1st two genal spines are different sizes
C. felis
Streamlined head
1st 2 genal spines = same size
Hormonal control of egg & larval development
Insect juvenile hormone
Controls embyonic development & maintains juvenile characters.
Moulting hormone (ecdysone)
Initiates moulting & pupation
Insect growth regulators (IGRs)
Chemicals that disrupt insect development
Recursos multimedia adjuntos
c8fa1425-d359-455e-ae9d-43cf9f913e8a.PNG (image/PNG)
22ccf0da-cd08-4f85-83f1-4c68a8c3bb58.PNG (image/PNG)
1dad7036-ae06-4b1a-ab99-4af14aa607b7.PNG (image/PNG)
e176a554-199e-49c7-81ba-e179a0ffa19f.PNG (image/PNG)
29ffe6e6-637b-475e-9baa-78c1e406e15b.PNG (image/PNG)
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