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Community Interactions Symbiosis Community Interactions Symbiosis

Community Interactions Symbiosis - PowerPoint Presentation

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Uploaded On 2020-06-15

Community Interactions Symbiosis - PPT Presentation

Abiotic Factors Topography Temperature Water Abiotic Factors Soil Content Sunlight Communities and Populations Communities Assemblage of different populations that live together in a defined area ID: 778004

parasitism organism symbiosis species organism parasitism species symbiosis parasite tongue host relationship mutualism win live isopod commensalism populations community

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Presentation Transcript

Slide1

Community Interactions

Symbiosis

Slide2

Abiotic Factors

Topography

Temperature

Water

Slide3

Abiotic Factors

Soil Content

Sunlight

Slide4

Communities and Populations

Communities

Assemblage of different populations that live together in a defined area.

Populations

Group of individuals of the same species that live in the same area.

Slide5

Niche

Each species unique living arrangement in a community

A full range of physical and biological conditions in which an organism lives and the way in which the organism uses those conditions.

Includes:

Habitat

Food sources

Time of day organism is most activePredatorReproduction

Slide6

Symbiosis

Any relationship where two species live closely together

Symbiosis literally means “living together”

3 main types

Mutualism

Commensalism

Parasitism

Slide7

Mutualism I Win – You Win (+,+)

Both species benefit from relationship

Slide8

Symbiotic Mutualism

A remarkable 3-way mutualism appears to have evolved between an ant, a butterfly caterpillar, and an acacia in the American southwest. The caterpillars have nectar organs which the ants drink from, and the acacia tolerates the feeding caterpillars. The ants appear to provide some protection for both plant and caterpillar

Slide9

Commensalism I Win (+,0)

One member of the association benefits and the other is neither helped nor harmed

Slide10

Commensalism

Slide11

Parasitism I win – You lose (+,-)

Slide12

Parasitism

One organism lives on or inside another organism and harms it

Parasite obtains all or part of its nutrients from the other organism

Host

Organism that is harmed in relationship; the one that provides the nutrients to the parasite

Parasite

Organism that gets its nutrients from the host

Do they want to kill their host?No, because they need them…they will weaken or hurt the host in some way

Slide13

Symbiotic Parasitism

Hook Worm

One Benefits, One is Harmed

Cutaneous larva migrans

Filariasis worm

Slide14

Parasitism

Loa

Loa

Blood Dwelling Nematode in the conjunctiva of the eye

Slide15

Parasitism

You’re not seeing things. There are

isopods in that fish’s mouth. And they’re not simply hiding in there – they’ve completely replaced the fish’s tongue. Meet the tongue-eating isopod (

Cymothoa

exigua

). Isopods are crustaceans, and one group of them – the Cymothoidae – parasitize fish. Most species are simple

ectoparasites that feed on the fish’s skin or gills. C. exigua goes further. The isopod gets into its host’s mouth and grabs onto its tongue with seven hooklike legs. Over time, the tongue degenerates, leaving the parasite hanging on to its stub. This change actually has very little effect on the fish, because it can still hold prey with the parasite. The isopod doesn’t just replace the tongue physically, it also replaces it functionally.

Slide16

Symbiosis

Slide17

Community interactions

Symbiosis-any relationship in which two species live closely together

MutualismCommensalismParasitism