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Roof Rats

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Roof Rats
1a. The genus Proxinus feeds either by foraging all parts of the areas of water they occupy, foraging only the top, foraging only the bottom, and foraging both the top and bottom but prefering the top.
1b. Yes these observations are word for word consistent with character displacement.
1a. Suggests one species is more driven towards foraging the top areas of water they occupy.
1b. In biology if one gets what it wants, it wins the competition.
2. "A Web on the Wind: The Structure of Invisible Work (A Special issue of Computer-Supported Cooperative Work.) Written by Bonnie A. Nardi and Yrjo Engestrom, and guest editors. Forthcoming, August, 1998"
This paper is a collective look at all work done. It mentions how invisible work involves technology
…show more content…
23x1.04^234=222,602. Roof rat is a quantity item of interest. Food Supply, space and competition would keep the population from growing exponentially.
4. Species richness of the sample is 8
4a. 33+29+12+21+2+1+1+1=100 ln(.33)= -1.109 ln(.29)= -1.238 ln(.12)=-2.12 ln(.21)= -1.561 ln(.02)= -3.912 ln(.01)= -4.605 ln(.01)= -4.605 ln(.01)= -4.605 .33*-1.109=-.366 .29*-1.238=-.359 .12*-2.12=-.254 .21*-1.561=-.328 .02*-3.912=-.078 .01*-4.605=.046 .01*-4.605=.046 .01*-4.605=.046 -.366-.359-.254-.328-.078-.046-.046-.046= -1.523 Shannon diversity index(H)=1.523 Hmax=ln(8)=2.079 Evenness=1.523/2.079=.73
4b. The habitat was diverse and
…show more content…
Looked it up, it's a real organism. All factors of it's behavior or biology will bias this estimate of population size.
6. Methods used and major conclusions of extinction risk from climate change in "Accelerating extinction risk from climate change" by Mark C. Urban. The author looks at various studies on extinction risk and climate change, his combined view of the methods and conclusions is that climate change must be limited to curb global extinction. He combines 131 studies on predicted extinction risk and comes up with an overall extinction risk of 7.9%. Contributes major factor in differences of predicted extinction rate to the level of future climate change. Important fact to consider is extinction risk is much smaller than total percentage of species influenced by climate change. This is a crucial little explored supporting detail to the author's claim of need to urgently curb climate change. Studies incorporate factors that both increase or decrease predicted risks. Evolution is the major factor for decreasing predicted risks, and it happens pretty slow. The extinction risk is predicted to grow exponentially with each degree of climate change. It's apparent we need to act now to save

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