Dyna's focal taxon

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Dragonfly of Borneo

Borneo is an island which has a great biodiversity including dragonfly. In this focal taxon project, I collected 9 morphotypes of dragonfly which were found in Lambir Hills National Park, Gaya Island, and Maliau Basin. Dragonfly is one group in insect order called Odonata which has special characteristic in the wider hind wings compared with damselfly, the other group in Odonata. Dragonfly may vary in term of the venation of the wings, the pattern of the color of the wings, abdominal strip, and many more. in this case, i found 15 characters that are detectable in the photograph (I used photography and direct eyes observation in identifying their characters) both in the abdomen and the wings.

The gold dragonfly of the Maliau Basin

Here is the list of all morphotypes that I collected.

Individual Determined by Date Taxon Genus Species Morphotype
Indiv14 Pagi 7 June 2010 Diplacodes haematodes Diplacodes haematodes
Indiv15 Pagi 7 June 2010 Orthetrum caledonicum Orthetrum caledonicum
Indiv17 Dyna 7 June 2010 Austragomphus prasinus Austragomphus prasinus
Indiv39 Rod 27 July 2010 Petaluridae
Indiv62 Dyna dragonfly_05
Indiv62 Dyna 8 July 2010 dragonfly_05
Indiv66 Dyna 8 July 2010 dragonfly_06
Indiv69 Dyna 8 July 2010 dragonfly_07
Indiv72 Dyna 8 July 2010 dragonfly_08

Character Matrix

I used 15 characters states in examining the phylogeny of the group of dragonfly that I collected in Lambir, Gaya Island, and Maliau Basin. Those states are illustrated in following picture.

Character states used in the cladistic analysis

After determining those 15 characters then a character matrix was built which was then used to make a cladistic analysis in phylip.

Character Matrix

Dendrogram of dragonfly

Dendrogram of dragonfly

The above dendogram shows the cladistic analysis of the dragonfly that was collected in Borneo. To be noted, this dendogram is an unrooted tree so that the basal member can not be mentioned. However, based on the analysis in the phylip, I can say in a quite high confidence that the dragonfly5 and dragonfly7 is closely related in one clade. It is due to the information provided in the outfile of the analysis that the bootstrap value for this clade is 1.00. This analysis make sense to me since the two morphotypes share the same characters but the pattern of the clear patch on the tip. The same bootstrap also happen in the wider clade, relating the clade of dragonfly5 and dragonfly7 with dragonfly 6 which has almost the same characteristics but different general color of the abdomen and the wings. In addition, the wider clade that relating those morphotypes I have been mentioned with the Petaluridae and dragonfly9 also has the same bootstrap values which is 1.00. This means that this clade is closely related based on the characters state I used in this analysis. As for the rest of the morphotypes, I can not say for sure about the relationship of them since the bootstrap values is 0.50 which is not enough to make a highly confidence of the analysis.



The surrounding five pictures are the five closely related morphotypes based on phylip cladistic analysis.