Question

hellp me plz!!! OMG X(

Answer 1

14) As a result of human activity (such as logging), large forests are becoming fragmented into several smaller forests.
a) How might the increasing isolation of populations in these forests influence their evolution?
b) How might the fragmentation affect the evolution of a large mammal, like a moose, compared to a small invertebrate, like a worm?

Answer 2

@vladthepro

Answer 3

This might help: https://answers.yahoo.com/question/index?qid=20110517180208AAD7oHP

Answer 4

no it doesn't ............i've already looked at it X(

Answer 5

Hmm... I'm sorry I don't know

Answer 6

aaawwwnnnn:(

Answer 7

ok thanks i guess...have a greate day love!!

Answer 8

u too

Answer 9

please help me.....:")

Answer 10

I can help.

Answer 11

what are you not understanding? @YumYum247

Answer 12

Would you prefer to brainstorm together or rather...have me explain mine?

Answer 13

whatever leads me to the right answer...

Answer 14

Sure sure

Answer 15

Do you have anything down?

Answer 16

Or rather typed.

Answer 17

i have ritten down the answer but i don't think it's right tho....X(

Answer 18

it goes something like this...

Answer 19

Spill.

Answer 20

ok look at it this way, because we have made these forests as the question describes it "isolated", what can you infer this. Meaning, you have different areas of forests now, what could happen to these allele frequency of these (for example, 4 different forests areas)?

Answer 21

Think of the overall picture, you had 1 original forest, now they are subdivided into 4 different forest from the same original.

These forests are now isolated from each other, can we infer they are all going to evolve in the same way?

better way to explain it is, what genetic predispoisiton can be implied if you have the same species, but different phenotypic traits? (Selective breeding *cough*)

Answer 22

small populations of people who live close to a forest or maybe inside a forest tend to misuse the reasyly available resources for different purposes, such as fire, building houses etc, which puts a strain on organisms who lose their habitat as well as it puts bald spots on a forest as the population in thses areas grows, so does the baldspots to a point where the surface of the earth is completely bald. Meanwhile organisms that rely on the forest wither migrate to another place or they sompley die off due to the fact that organisms can't keep up to the sudden environmental pressurescaused by logging and in some cases over hunted by humans, animals, starvation and less offspring drive many species to extinction.

Answer 23

slap me if i m wrong...

Answer 24

what's infer?!?!?

Answer 25

Honestly that didn't make a lot of since, think animals, not humans. The question implies that humans subdivided the forests, so how does the forests relate to gene frequency as it relates to other animals in the forest.

Answer 26

i was getting to that point but i've not planned out that yet...

Answer 27

The answer to my original post is quite simple. Genetic variation plays a role in the difference in gene frequency, remember evolution simply characterized as a change in gene frequency.


So how does gene frequency affect the different variations of the forests??....

It's simple actually, hence why I said "(Selective breeding *cough*)

Answer 28

In my research lab I do selective breeding, I use the same type of flies, but some of the lines of the flies have a predisposition to different types of alcohol, which means that the only variable that could affect them is THE ENVIRONMENTAL CONDITIONING.

Answer 29

meaning those who adapt to the environmental pressure have a better chances at surving???

Answer 30

Each forest will give a different type of environmental pressure, yes. Each environment is not the same environment, so lets say there are 4 different forests, and 4 of the same bird species.

Each forest has a different environmental conditioning set aside with it. Overtime we can "assume" that the only different between the species is the allele frequency that has changed over time.

Answer 31

Does that make sense?

So because they are now isolated in different conditioning to the environment, the allele frequency can change over time. Also, as you mentioned selective pressure for each forest will be different for each of the forests. We can not assume that the same environmental factors are identical in all 4 subdivided forests.

Answer 32

yes .....but what influences organisms to have characteristics to adapt to the environment????

Answer 33

@YumYum247

Well, what ever helps the organism survive.

Answer 34

ok....got it ...question (B) please!!!

Answer 35

well, define me fragmentation. That should answer the question :P

Answer 36

divided?!

Answer 37

whaaaa? O_O

Answer 38

i think the large mammals like moose will thrive while the small invertibrates will die off like worm

Answer 39

What Is Habitat Fragmentation
Imagine that one day you are driving to work, and suddenly there is a new wall in the road blocking you from going any further. You know what is on the other side - your office, the grocery store, your friends and family. However, you are now completely disconnected from these important resources, and going about your life normally doesn't really seem like an option any longer.


Though you depend on the road to travel to the places you need to go, that road itself may have cut through a habitat that was once contiguous. Animals that live in these habitats are now in the same situation that you were when your road was blocked because their habitat has become fragmented. Fragmented habitats are habitats that were once contiguous but are now separated into smaller, isolated areas.

Answer 40

source: http://study.com/academy/lesson/habitat-fragmentation-effects-definition-causes.html

So between a worm and a moose, which one do you think can travel these long distant places?

Unless your worm is on some kind of steroid that can move like a moose, I think this premise is pretty basic, and funny :P

Answer 41

In other words, if the worm gets cut off form its resources in this isolated area, unless it can find another area quickly, the chances for it to survive are minimal compared to a moose where it can cover large distances and maybe find other isolated areas.

Answer 42

i think i'm getting there....

Answer 43

so basically the worms will die off and the moose will thrive...right??? but then there's always an option or migrating...

Answer 44

How well can a worm migrate though? That's the point, it really can't.

Answer 45

Compared to a moose.

Answer 46

that's what i said the worm will die off...

Answer 47

oh ok.

Answer 48

can you just write me the anwer...please////

Answer 49

i'll love you ?

Answer 50

It's against the rules, but use this. Use this deffinition, explain it in your own words would it means, then just use the analogy we mentioned about the moose covering more distance to find better isolated areas:

"What Is Habitat Fragmentation
Imagine that one day you are driving to work, and suddenly there is a new wall in the road blocking you from going any further. You know what is on the other side - your office, the grocery store, your friends and family. However, you are now completely disconnected from these important resources, and going about your life normally doesn't really seem like an option any longer.


Though you depend on the road to travel to the places you need to go, that road itself may have cut through a habitat that was once contiguous. Animals that live in these habitats are now in the same situation that you were when your road was blocked because their habitat has become fragmented. Fragmented habitats are habitats that were once contiguous but are now separated into smaller, isolated areas."

Answer 51

ok...just one more question....i promise

Answer 52

no problem. just close this and post

Answer 53

i did.

Answer 54

can you give me just a little more information on question "B" pelase!!

Answer 55

the road thingy was almost like poetry....

Answer 56

please be a little more simple... just need a little more information

Answer 57

b) How might the fragmentation affect the evolution of a large mammal, like a moose, compared to a small invertebrate, like a worm?

Answer 58

i know that as the forest divides into smaller fragments, so does the habitats of oraganims who live there.