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Relationships Within Ecosystems NOTES

Last updated about 1 year ago
37 questions
1

Habitat - is the _____ where an organism lives

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A shark's habitat:

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Niche -

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Niche for a shark:

4

Niche:
1.
2.
3.
4.

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Can 2 different species live in the same habitat? (like birds in a tree)

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But can 2 different species DO the same thing? (like birds eat the same worm)

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This is because every species has their own set of ____________ in a niche.

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When 2 species are in the same niche, they need the same _______.

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So they _______ (fight) with each other.

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Whoever has the best ___________, will exist in that niche.

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The other species either finds a new niche or .. uh.. goes extinct.

Competitive exclusion - when forced to compete, one species _______ the other(s)

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_______ species invades and competitively excludes native species

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What is an example of an invasive species?

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Which grassy reed is native to our Meadowlands?

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When species compete, they can:

Make the other ________ away

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Make the other go _______

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or _____ with the other

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Ex - bats and dragonflies both eat mosquitoes in their same niche, but:
(select 2)

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PREDATION - when predator eats/hunts the ________

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If the # of prey (zebras) goes up, the # of predators (lions) goes ____

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If the # of predators (lions) goes up, the # of prey (zebra) goes ____

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If the # of prey (zebra) goes down, the # of predators (lions) goes ____

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If the # of predators (lions) goes down, the # of prey (zebra) goes back ____

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BOOM-BUST CYCLE:

Draggable itemCorresponding Item
boom
when population increases
bust
when population decreases
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What do you call a species that can REALLY affect the boom-bust cycle in its ecosystem?

a ______ species - a KEY organism that makes an ecosystem work,
ex. - beaver, prairie dogs, wolves

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MIMICRY - Look, sound or act like a more _______ SPECIES

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example of mimicry:

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WARNING COLORATION - Has bright colors or patterns to ______ predators

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example of WARNING COLORATION:

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CAMOUFLAGE - looks or acts like its _________

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example of CAMOUFLAGE:

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REVIEW: Which is NOT part of an organism's niche?

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REVIEW: A snake eating a mouse and a frog eating a fly are examples of:

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REVIEW: A caterpillar disguised as a bird poop on the ground is an example of which defensive adaptation?

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REVIEW: What is the whole point of a boom-bust cycle in an ecosystem?

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REVIEW: If the # of predators decrease, why do the # of prey increase?