ISSS608 2017-18 T3 Assign Anthony Theodore Findings

Mysterious Disappearance at Wildlife Preserve

Overview

Approach & Design

Findings

Conclusion

Initial Exploration

Below is the distribution of all bird inside Lekagul Preserve that are detected by sensors. While there are many different species inside Lekagul Preserve, only Rose-crested Blue Pipit is seen grouping in the alleged dumping site area.

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  Distribution of all birds
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  Rose-crested Blue Pipit cluster

Thus looking at this behavior, it made sense that the Kasios was blamed with the disappearance of Rose-crested Blue Pipit. Of all species that live inside Lekagul Preserve, Rose-crested Blue Pipit is the species that will greatly be affected by the dumping situation.
However, not only Rose-crested Blue Pipit, but other species, such as Ordinary Snape is also seen grouping near the dumping site.

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  Ordinary Snape cluster

Bombadill and Vermillion Trillian is also spotted grouping near the dumping site, albeit further than Ordinary Snape and Rose-crested Blue Pipit.

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  Bombadil cluster
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  Vermillion Trillion cluster

We will use all this species as our control group because if indeed the dumping site was the cause of Rose-crested Blue Pipit disappearance, then these species should also be affected. As mention in the description, the extent of the area affected by the dumping site is unknown. In our approach, we mention that we only use the data from 2006 - 2017. The reason for this decision was, even though the assignment description stated that the patterns are reasonably representative of the bird locations across the area, all birds did not have significant record until 2006, as seen from the graph. We excluded 2018 because the data recorded for 2018 are until Q1, and insufficient data for the rest of 2018.

image

Disappearance of many birds inside Lekagul Preserve

Initially, the population of Rose-crested Blue Pipit were increasing. They peaked at 2015, but then gradually decreased until 2017. This may indicate that there is indeed something happened with the Rose-crested Blue Pipit, and by visualizing year by year cluster of the bird, we can see that the bird actually moved away in 2015, as seen below:

Image

The cause of this migration is unknown, but we could assume that it has something to do with the alleged waste dumping taking place, since Rose-crested Blue Pipit is the only bird that cluster in the alleged dumping area, and no other bird display such drastic migration.
For comparison, we will show our control group situation. Ordinary Snape is a species nearest to the dumping site. If we see at the year by year position, it is very clear that they never migrate outside their cluster, unlike Rose-crested Blue Pipit. However, their population is also decreasing, albeit not as much as Rose-crested Blue Pipit variant.
IMAGE

Below is the gallery image of all other birds position year by year.

• Galerella sanguinea Zoo Praha 2011-2.jpg

  Galerella sanguinea (Slender Mongoose)

• Felis silvestris silvestris.jpg

  Felis silvestris silvestris

• Six weeks old cat (aka).jpg

  Felis silvestris catus (A Young Cat)

• Felis catus-cat on snow.jpg

  Felis catus (cat on snow)

• Tired 20-year-old cat.jpg

  Felis silvestris catus (Tired 20-year-old cat)

• Cat November 2010-1a.jpg

  Felis silvestris catus (Cat)

• Felis silvestris silvestris Luc Viatour.jpg

  Felis silvestris silvestris (European wildcat)

• June odd-eyed-cat cropped.jpg

  Felis catus (Domestic cat)

• Lynx kitten.jpg

  Lynx lynx (A Young Lynx)

Link for the dashboard:

Change of Birds Behaviour

Vocal Characteristic

Vocal comparison