Top Posters
Since Sunday
I
3
3
p
2
w
2
y
2
J
2
Q
2
r
2
o
2
e
2
j
2
d
2
SlideshowReport

Experimental manipulations of ponds and responses.

Description
Carpenter and Kitchell tested their trophic cascade model by manipulating the fish communities in two lakes and using a third lake as a control. Figure 19.17 shows the overall design of their experiment. Two of the lakes contained substantial populations of largemouth bass. A third lake had no bass, due to occasional winterkill, but contained an abundance of planktivorous minnows. The researchers removed 90% of the largemouth bass from one experimental lake and put them into the other. They simultaneously removed 90% of the planktivorous minnows from the second lake and introduced them to the first. They left a reference lake unmanipulated as a control.
Related Images
Add Comment
Explore
Post your homework questions and get free online help from our incredible volunteers
  477 People Browsing
Show Emoticons
:):(;):P:D:|:O:?:nerd:8o:glasses::-):-(:-*O:-D>:-D:o):idea::important::help::error::warning::favorite:
Your Opinion
Which industry do you think artificial intelligence (AI) will impact the most?
Votes: 486