by Glenn Aguilar

Author Archives: epress epress

Exercise 2

Adding Accurate Location to Satellite Imagery Satellite or remotely sensed imagery are valuable sources of information about the Earth’s surface. In this exercise, imagery is geo-referenced so that the image features are accurately located in its actual location on the surface of the…

Exercise 3

Generating Map Elements in ArcMap In this exercise, previously prepared layers including political boundaries, roads, georeferenced imagery and standard map elements are formatted for effective map layouts. The overlaying of different pieces of information provides a visualization of spatial relationships between the layers…

Exercise 4

Surface Modelling In this exercise, a representation of the surface of the Earth is generated using TINs (Triangulated Irregular Network) to generate a 3D surface model. A 3D model provides a very convenient representation for visualizing the surface of the Earth as well…

Exercise 5

Generating 3D Views of a Surface Contours (intersections of the surface at different elevations), hillshade (areas shaded depending on the sun’s height and direction) and aspect (angle that the surface faces relative to compass directions) are some of the other useful models that…

Exercise 6

Preparing the Environmental Layers for Species Distribution Modelling Click here for PDF version Part 1 For this group of exercises (6, 7 and 8), species distribution modelling is demonstrated using Maxent (Philipps et al., 2006) to show how to produce the suitability maps…

Exercise 7

Preparing the Environmental Layers for Species Distribution Modelling Click here for PDF version Part 2 For this group of exercises (6, 7 and 8), species distribution modelling is demonstrated using Maxent (Philipps et al., 2006) to show how to produce the suitability maps…

Exercise 8

Modelling with Maxent Click here for PDF version  Search for the kiwi and download the occurrence data from http://www.gbif.org/ Unzip the downloaded occurrence zip file Edit the occurrence data so that only the Species, Longitude and Latitude data remains Save the occurrence file…

Results of Spatial Modelling

Map Outputs Depicting Spatial Models of Different Important Species Contributing to Biodiversity Conservation and Planning Include: Spatial distribution of the Giant Fiji Beetle (Xixuthrus sp.), Fiji tree frog (Platymantis spp.) and an endangered podocarp (Acmopyle sp.)