Feral Hogs Flashcards

1
Q

Where are feral hogs native to and when did they get introduced to Canada and by who and why

A

Native to Eurasia and parts of North America

Introduced in 1980s and 1990s from Europe in attempt to diversify breeding stock and for shooting as “penned game”

Spread from BC to Quebec by 2017

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2
Q

Why were feral hogs easily able to spread across Canada

A

Ability to breed with domesticated pigs and adaptability to live on different food sources and in different climates/environments

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3
Q

True or false

The hybrid feral hogs seen today are the most invasive mammal in Canada

A

True

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4
Q

Where are the majority of feral hogs in Canada

A

South-central Saskatchewan

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5
Q

Why are feral hogs a problem

A

Threat to native species due to their impact on the environment and hunting capabilities

Harm domesticated pets and livestock

Harmful to crops due to their digging, rooting and feeding on them

Threat to people: very aggressive and can weigh up to 120-250 lbs

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6
Q

Social groups of feral hogs usually involve

A

Sows and their offspring

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7
Q

Other groups involve

A

Single adults
Subadults
Piglets
(Typically males)

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8
Q

What are sounders

A

Groups made up of 2-3 reproductive females and their litters

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9
Q

What does the population of groups of feral hogs range between

A

2-30 or more

Can reach you to 100 but rare due to increased competition

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10
Q

A single feral hog can be in any group depending on its

A

Age

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11
Q

True or false

Feral hogs are herbivores

A

False

They are omnivores

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12
Q

True or false

Feral hogs can breed in any season

A

True

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13
Q

Feral hogs are ____ polyestrus and are sexually mature within ___ months of age

A

Seasonally polyestrus

4-8 months of age

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14
Q

What is the gestation period for feral hogs and what are their typical litter sizes

A

112-115 days

Litters if 4-6

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15
Q

Pregnant sows will build a ____ ____ about a day before giving birth and will reduce their home range to provide

A

Farrowing nest

Provides protection from the weather and predators

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16
Q

When do piglets become independent from their mother and leave the group

A

About 7 months of age

17
Q

What is wallowing

A

Behaviour done to keep cool, and repel insects. done by bathing themselves in mud

Seen mostly in the summer but they will break ice to wallow in the winter

Have negative affects on the environment -a contributes to bank erosion, destroys aquatic vegetation and lowers fish population

18
Q

What is rubbing

A

Behaviour frequently seen near wallowing areas where they rub on sturdy objects to scratch themselves, remove mud, hair and parasites

19
Q

Who do feral hogs have symbiotic relationships with

A

Wild birds

They eat parasites off the pigs (grooming)

Pigs will sit still and wait for birds to start grooming them