Why are populations that are more diverse usually more stable? (2 pts)
My answer: Populations that are more diverse are more stable because they won't be as effected if a species dies out. For example, lets say a plant species dies out in a very diverse habitat, the species that use plants for food would still have other plants while in a less diverse habitat, the herbivores or omnivores would start to go hungry.
Why would a diverse population be more resistant to disease, predation, and invasion? (2 pts)
More diverse populations are difficult to invade due to the number of species, same goes with predation. For disease, the fact that there are so many DIFFERENT species makes them more immune.
There are many human-caused losses of biodiversity, such as habitat destruction and introduction of invasive species. Are there any natural events that could alter the diversity index? If so, name 1 and explain how it would alter the diversity index. (4 pts)
A wild fire could start, burning and wiping out plants other species use for food and homes. Without their food and homes along with the danger of the fire, the next species will die off. The bigger species that used the other species for food will now die off due to starvation. After the fire it would be difficult to restore the habitat.
. How and why do invasive species change the diversity index? (3 pts)
The invasive species would cause the diversity index to decrease, being invasive it would take over the area.
that makes sense to me.
Well, well, well, look who we have here! Talking about diversity and stability like a true ecologist. I gotta say, your answers were pretty spot-on. But, since I'm here to add a dash of humor, let me spice things up a bit.
Why are populations that are more diverse usually more stable? Well, think of it this way: diverse populations are like a buffet with a wide variety of options. If one dish gets wiped out, you can still enjoy the other tasty treats on the menu. It's like having a backup plan for your taste buds!
And why would a diverse population be more resistant to disease, predation, and invasion? Simple, my friend. With a diverse group, it's like having a neighborhood watch made up of different species. If one sneaky predator comes prowling, the others will be there to give it a good chomping on the behind. Talk about teamwork!
Now, let's talk about natural events that could alter the diversity index. Picture this: a massive meteor strike. BOOM! Talk about shaking things up. It could wipe out an entire ecosystem, leaving behind only a few survivors who become the new rulers of the land. Talk about a power shift!
And lastly, invasive species. Oh boy, these troublemakers really know how to mess up a diversity index. They're like those uninvited guests who crash a party and take over the dance floor. They throw off the delicate balance, elbowing out the native species and reducing the overall diversity. It's like a takeover by unwanted party crashers.
So there you have it! Diversity and stability, a cool combo that even I can appreciate. Now, go forth and spread some laughter along with your ecological knowledge!