modelling badger migration using distance spatial analysis tools n.
Download
Skip this Video
Loading SlideShow in 5 Seconds..
Modelling badger migration using Distance Spatial Analysis Tools PowerPoint Presentation
Download Presentation
Modelling badger migration using Distance Spatial Analysis Tools

Loading in 2 Seconds...

play fullscreen
1 / 27

Modelling badger migration using Distance Spatial Analysis Tools - PowerPoint PPT Presentation


  • 66 Views
  • Uploaded on

Modelling badger migration using Distance Spatial Analysis Tools. a.k.a. The story of 2 lonesome badgers. Bert Meeus. Once upon a time. a forest. A peaceful forest!. But suddenly. A hungry bear!. Charlie is so lonely!. snif. Elsewhere at the same time. another forest. a forest.

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

PowerPoint Slideshow about 'Modelling badger migration using Distance Spatial Analysis Tools' - sally


An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
modelling badger migration using distance spatial analysis tools

Modelling badger migration using Distance Spatial Analysis Tools

a.k.a.

The story of 2 lonesome badgers

Bert Meeus

slide7

Elsewhere at the same time ...

another forest

a forest

slide8

Another peaceful forest!

I am so lonely!

I‘m outta here!

slide9

The question

What is the chance that Winnie will find Charlie so they can have little baby badgers to repopulate Charlie's forest?

slide10

Assumptions

The chance on successful migration will

depend on:

  • Distance between forests
  • Landscape in between forests
  • Random movements of badger

Modelling through Distance Tools (Spatial Analyst)

slide11

Full model

Model 1

Model 2

Model 3

slide13

Model 1

Assumption: chance on successful migration will depend only on distance between forests

It’s too far!!!

slide14

Model 1

Euclidian distance

between forests

=

69231.156476 m

slide15

Model 2

Assumptions: chance on successful migration will depend on:

  • Distance between forests
  • Landscape in between forests
slide21

Model 3

Assumptions: chance on successful migration will depend on:

  • Distance between forests
  • Landscape in between forests
  • Random movements of badger
slide25

Model 3: corridor

Dark green: most likely path for badgers to move between forests

Light green: alternative paths

slide26

Model 3

Volume = 456016578860858.19 m³

slide27

Conclusions

Distance Tools of Spatial Analyst can be used to model animal migration!

Problems:

* Very slow for large images

* How convert values for Euclidean Distance, Path Cost and Corridor Volume to migration chances?