Parasites of Wildlife Flashcards

1
Q

what parasites are common in fish-eating birds?

A

flukes

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2
Q

what parasites are common in bird-eating birds of prey?

A

coccidia

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3
Q

what parasites are common in birds of prey?

A

capillaria

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4
Q

what are hippoboscid flies?

A

common biting insects on birds

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5
Q

do heartworms negatively impact coyotes?

A

not that we can tell
no pathogenic changes

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6
Q

when do you treat wildlife for parasites?

A

if there is a problem associated with the parasite: weight loss and GI parasite
granulomatous abscess due to Trichomonas gallinae

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7
Q

what does Sarcoptes scabei cause?

A

scabies in foxes, coyotes, porcupines, black bears, fishers
different species-related variants

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8
Q

does Sarcoptes scabei typically cause population-level concerns?

A

no, worse in black bears right now
tends to cycle through population

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9
Q

what are the signs of scabies in wildlife?

A

same as in dogs: pruritis, alopecia, crusting
worse: emaciation, general debilitation from inability to hunt/forage

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10
Q

how do you treat scabies in wildlife?

A

treatment clearly indicated in individual animals presented to wildlife rehabilitators and veterinarians
ivermectin effective in multiple species
do not attempt treatment by baiting

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11
Q

what is a zoonotic parasite of raccoons?

A

Baylisascaris procyonis

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12
Q

how can Baylisascaris procyonis eggs be destroyed?

A

very high temperatures only

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13
Q

who does Baylisascaris procyonic affect?

A

anyone who is not a raccoon

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14
Q

in what raccoons is Baylisascaris procyonis known to occur in?

A

raccoons across the US
has been documented in captive-reared raccoons

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15
Q

at what age can raccoons begin passing Baylisascaris procyonis eggs?

A

8 weeks

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16
Q

how long do Baylisascaris procyonis eggs take to become infectious after being defecated?

A

2-4 weeks

17
Q

what are Dermacentor albipictus?

A

moose tick or winter tick

18
Q

why are Dermacentor albipictus booming right now?

A

climate change
weather from october through january usually regulate the tick numbers

19
Q

why are Dermacentor albipictus important?

A

hair loss in moose: moose have no defense against large infestations
high calf mortality due to severe anemia

20
Q

who is Toxoplasma affecting in population health?

A

southern sea otters: up to 70% of those captured in high risk coastal areas in CA have been exposed
28% of deaths

21
Q

how do sea otters get exposed to Toxoplasma?

A

oocysts in felid feces carried in freshwater runoff, accumulate in invertebrates and consumed by otters
high density of humans and pet cats leads to more otters being exposed

22
Q

what does Toxoplasma in sea otters lead to?

A

encephalitis
myocarditis

23
Q

what avian species are hardest hit by exposure to new variants of malaria?

A

island species
some Hawaiian species have been significantly affected

24
Q

what is a common parasite in the blood of birds that is not commonly treated?

A

hemoprotozoan parasites

25
Q

what causes granulomatous lesions in hawks?

A

Trichomonas gallinae

26
Q

what percentage of otter deaths are attributed to toxoplasma?

A

28%

27
Q

what percent of moose calf mortalities were attributed to Dermacentor albipictus?

A

90%