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REM 388 > Wildlife Senses > Flashcards

Wildlife Senses Flashcards

1
Q

What is Visual Acuity?

A

The ability to form sharp images

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2
Q

Example of a group with well developed visual acuity

A

birds

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3
Q

What is visual sensitivity?

A

The ability to form images in dim light. Involves the tapetum lucidum

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4
Q

What is the structure that helps animals have good visual sensitivity?

A

Tapetum lucidum

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5
Q

What group has well-developed visual sensitivity?

A

Mammals

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6
Q

Characteristics of animals with round pupils

A

actively chase down their prey in the daylight. Usually predators that don’t need to avoid attack

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7
Q

Characteristics of vision with round pupils

A

Not a wide field of view

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8
Q

Examples of animals with round pupils

A

Dogs, wolves and big cats

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9
Q

Characteristics of animals with vertical slit pupils

A

small ambush predators that hunt close to the ground

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10
Q

Characteristics of vision with vertical slit pupils

A

greater expansion so more light can get in

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11
Q

Examples of animals with vertical slip pupils

A

cats, foxes, crocidiles

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12
Q

Characteristics of animals with horizontal slit pupils

A

prey animals

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13
Q

Characteristics of vision with horizontal pupils

A

wide field of view to scan for predators. Keeps the ground in sharp focus

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14
Q

Examples of animals with horizontal slit pupils

A

sheep, goats and horses

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15
Q

characteristics of animals with crescent pupils

A

live in water

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16
Q

characteristics of vision with crescent pupils

A

enhances vision by decreasing distortion in water. wide field of view to watch for predators and prey. Boosted contrast

17
Q

Examples of animals with crescent pupils

A

stingrays, flatfish, catfish

18
Q

Characteristics of vision with W shaped pupils

A

light can enter from many directions to boost contrast and distance vision

19
Q

Example of animals with W shaped pupils

A

cuttlefish

20
Q

Characteristics of vision with Vertical Beaded Pupils

A

perceive distance well and can hunt in variety of environments

21
Q

Examples of animals with vertical beaded pupils

A

geckos and some fish

22
Q

Examples of signals that can come from visual cues (4)

A

Group cohesion, warnings and dominance

23
Q

Why do mammals have well-developed olfactory sensing?

A

Because of our nocturnal activity

24
Q

Which mammal group doesn’t have an olfactory lobe?

A

Cetacea

25
Q

Example of non-mammal group with highly developed olfactory lobe

A

Birds

26
Q

Examples of signals that can come from olfactory cues (5)

A

food sites, reproductive status, alarm signals, dominance, territory boundaries

REM 388 (18 decks)

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