Bimaculatus And Acheta Domestica Research Paper

Using CO2 output to compare the respiration rates of Gryllus bimaculatus and Acheta domestica

Abstract
This study was undertaken in order to compare the respiration rate of the field cricket, Gryllus bimaculatus, to that of the house cricket, Acheta domestica. This was done by observing the CO2 output levels (in microlitres/min) of both cricket species. Our results showed that the field cricket, Gryllus bimaculatus, had a greater CO2 output than the house cricket did, which suggests that the field cricket has a faster rate of respiration than that of the house cricket. There may be sever possible factors that contributed to these results such as the physical fitness of the particular cricket, the medical condition of the cricket, and
the size of the cricket.

Results

The results of the CO2 output test indicate that the field cricket, Gryllus bimaculatus, had a greater CO2 output than the house cricket, Acheta domestica (Figure 1). It was determined that the field cricket (n=12) produced significantly more CO2 per minute (p=1.8e-8) than the house cricket (n=12).

Figure 1. The CO2 output (in microlitres/minute) of Gryllus bimaculatus in comparison to the CO2 output of Acheta domestica.

Independent t-test – Proof of R

R Independent t=test formulation A
A=c(18.0,23.9,24.8,25.4,23.0,18.5,25.8,16.3,21.0,21.1,21.3,21.6,10.0,13.6,6.75,10.0,9.45,12.8,18.8,12.0,12.0,7.2,8.8,12.4)
B=c('Bimaculatus','Bimaculatus','Bimaculatus','Bimaculatus','Bimaculatus','Bimaculatus','Bimaculatus','Bimaculatus','Bimaculatus','Bimaculatus','Bimaculatus','Bimaculatus','Domestica','Domestica','Domestica','Domestica','Domestica','Domestica','Domestica','Domestica','Domestica','Domestica','Domestica','Domestica')
C=data.frame(A,B)
C
D=glm(A~B,data=C)
summary(D)

Estimate Std.
Error t value Pr(>|t|)
(Intercept) 21.7250 0.9067 23.962 2e-16
BDomestica -10.5750 1.2822 -8.247 3.55e-08/2=1.8e-8

Graphing Formula
Bimaculatus=c(18.0,23.9,24.8,25.4,23.0,18.5,25.8,16.3,21.0,21.1,21.3,21.6)
Domestica=c(10.0,13.6,6.75,10.0,9.45,12.8,18.8,12.0,12.0,7.2,8.8,12.4)
Variables=c(Bimaculatus,Domestica)
Teams=c('Bimaculatus','Bimaculatus','Bimaculatus','Bimaculatus','Bimaculatus','Bimaculatus','Bimaculatus','Bimaculatus','Bimaculatus','Bimaculatus','Bimaculatus','Bimaculatus','Domestica','Domestica','Domestica','Domestica','Domestica','Domestica','Domestica','Domestica','Domestica','Domestica','Domestica','Domestica') boxplot(Variables~Teams,ylab="CO2 Output (microlitres/min)",xlab="Type of
Cricket")