Ecology B/C

[radioactiveviolet]

I'm not sure if anyone's on this thread anymore but still.. (Click to Show Hidden Text)

Explain the differences between alpha, beta, and gamma diversity.

[Zioly]

I'm not sure if anyone's on this thread anymore but still.. (Click to Show Hidden Text)

Explain the differences between alpha, beta, and gamma diversity.

Upon a quick Google search, I have discovered... (Click to Show Hidden Text)

Alpha diversity is the biodiversity of a certain habitat/ecosystem.
Gamma diversity is the biodiversity of a larger region that contains many habitats and ecosystems that alpha diversity could describe.
And beta diversity is a loosely-described stepping stone between the two, that compares and contrasts the biodiversities among habitats and ecosystems.

The terms were introduced by R. H. Whittaker to describe the spatial component of biodiversity.

[Zioly]

Just gonna go... An easy one, but important regardless:

Define amensalism and give two examples of it.

[sciduck]

Just gonna go... An easy one, but important regardless:

Define amensalism and give two examples of it.

Amensalism (Click to Show Hidden Text)

is a symbiotic relationship in which one organism suffers from negative effects while the other is unaffected. I think antibiosis could be an example and another could be... humans accidentally stepping on insects?

[Zioly]

Just gonna go... An easy one, but important regardless:

Define amensalism and give two examples of it.

Amensalism (Click to Show Hidden Text)

is a symbiotic relationship in which one organism suffers from negative effects while the other is unaffected. I think antibiosis could be an example and another could be... humans accidentally stepping on insects?

I'm not sure, but is antibiosis the opposite of symbiosis? So wouldn't amensalism be a type of antibiosis? And yes, I guess the humans/insects example could work, but I'm not sure if that fits the criteria as a close ecological relationship.

Still, good answer. Your go. Clarifications for the above are appreciated as well.

[sciduck]

Just gonna go... An easy one, but important regardless:

Define amensalism and give two examples of it.

Amensalism (Click to Show Hidden Text)

is a symbiotic relationship in which one organism suffers from negative effects while the other is unaffected. I think antibiosis could be an example and another could be... humans accidentally stepping on insects?

I'm not sure, but is antibiosis the opposite of symbiosis? So wouldn't amensalism be a type of antibiosis? And yes, I guess the humans/insects example could work, but I'm not sure if that fits the criteria as a close ecological relationship.

Still, good answer. Your go. Clarifications for the above are appreciated as well.

Oops, sorry. I don't actually do Ecology; I just have a feeling I'll be filling in at regions/state. (Click to Show Hidden Text)

According to google, antibiosis is "an antagonistic association between two organisms (especially microorganisms), in which one is adversely affected." So, yeah. I guess some antibiosis relationships would be amensalism, some not. The one I had in mind was [i]Penicillium[/i], which could probably grow w/ the presence of bacteria, but the penicillin it produces kills bacteria anyways. Bad for bacteria; eh for the fungus.
The human/insect one was just me guessing because I couldn't think of anything else. Do you have any more examples?

What affects species richness on an island?

[me-myself_i]

:geek: :ugeek: 8-) (Click to Show Hidden Text)

Different factors, like types of predators, types of prey, symbiotic relationships, and availability of resources

[sciduck]

:geek: :ugeek: 8-) (Click to Show Hidden Text)

Different factors, like types of predators, types of prey, symbiotic relationships, and availability of resources

Uhhh (Click to Show Hidden Text)

I was thinking size of island and distance from mainland. But that's my blurry memory talking. Could I get a third opinion here?

Your turn.

[Uber]

:geek: :ugeek: 8-) (Click to Show Hidden Text)

Different factors, like types of predators, types of prey, symbiotic relationships, and availability of resources

Uhhh (Click to Show Hidden Text)

I was thinking size of island and distance from mainland. But that's my blurry memory talking. Could I get a third opinion here?

Your turn.

Those are the ones specific to islands, although the others me_myself_i listed would also affect species richness.

[me-myself_i]

how do you calculate biomass?