Te Puke Samples

Preliminary analysis of patterns of Thrips in Kyles Sward up in Te Puke.

Flower Samples

Total thrips per flower species

This code shows the total number of thrips per flower head (thrips/flowers) to give a mean number of thrips per flower. Standard Error is huge for the Dandelion as one sample has a huge umber of T. tretemia species which is a bit of an outlier amongst all the species.

F. intonsa samples

Clover was found to be the dominant habitat for F. intonsa

Use of different sampling methods

This plot looks at the Total number of Thrips caught using each of the different sampling methods. Here we can see that the sticky traps caught the greatest number of thrips from the orchards.

Mean method results

The mean of this graph for flower samples is reduced so much from the total graph is because there are many more quadrat entries that give it a larger sample size (>30) and therefore a lower mean compared to 10 water traps. Water Trap (n=10), Beat (n=2), Quadrat-flower collection (n=52), Fruit (n=1), Sweep (n=13), Quadrat-fruit collection (n=2).

Sticky Trap each colour (n = 10)

Comparing the different coloured sticky traps

Light blue sticky trap caught the greatest number of thrips, however, the number of thrips caught between the colours was not signficantly different (F(2,27) = 0.502, P = 0.611).

##             Df Sum Sq Mean Sq F value Pr(>F)
## Sample_type  2  22964   11482   0.502  0.611
## Residuals   27 618174   22895

Number of thrips present at different locations

Thrips species present in the sward (Kyle only)

Sticky Traps from the March Sampling

Using data Intonsa thrips raw data fruit and flight traps. These plots show the total number of thrips pooled from the front and the back of the sticky traps across the different locations. The total is the raw total and does not account for how many sticky traps were placed within each location.

Sticky Traps from the March Sampling

Using data Intonsa thrips raw data fruit and flight traps. These plots show the mean +/- SE of the number of thrips.

Loadout Sticky Traps (n = 24) Block Sticky Traps (n = 61)

There was signficantly more thrips in the Loadout zone compared to the Block (t = -4.4057, df = 37.692, p-value = 8.437e-05) however this mean could be influenced by the higher replication across the block

North (n=5) East (n=7) South (n=6) West (n=6) North edge (n=7) North under canopy (n=7) East edge (n=7) East under canopy (n=7) South edge (n=7) South under canopy (n=7) West edge (n=5) West under canopy (n=7) Centre under canopy (n=7)

## 
##  Welch Two Sample t-test
## 
## data:  total.1 by Sticky_trap_locality
## t = -4.4057, df = 37.692, p-value = 8.437e-05
## alternative hypothesis: true difference in means between group Block and group Loadout is not equal to 0
## 95 percent confidence interval:
##  -22.14655  -8.19908
## sample estimates:
##   mean in group Block mean in group Loadout 
##              11.86885              27.04167