Presentation is loading. Please wait.

Presentation is loading. Please wait.

From 2009 to 2017 By Alison Nevins

Similar presentations


Presentation on theme: "From 2009 to 2017 By Alison Nevins"— Presentation transcript:

1 From 2009 to 2017 By Alison Nevins
Map of My Birding Data Western Bluebird From 2009 to 2017 By Alison Nevins

2 Western Screech-Owl named Gus
Map Idea Western Screech-Owl named Gus I am a wildlife biologist and over the past several years I have worked in many different states with birds. Throughout that time I used a website called eBird to log the species and number of birds seen. I wanted to create a map that showed the places that I have been in the continental United States with the number of species that I have seen.

3 Data Painted Bunting Added an excel sheet with eBird data—displayed XY data and exported data to create point layer Added US county and State map from online Adding online data Display XY Data

4 Tools Select by Location– to select only the counties with eBird data
Grasshopper Sparrow Tools Select by Location– to select only the counties with eBird data Dissolve– to create a layer of summarized eBird data Join– to join the eBird data layer with the County and State layers Join by Location Select by Location Dissolve

5 Other Steps Adding data field Attribute Table
Red-Shouldered Hawk chick Attribute Table adding count data to Marin County turning off data fields and adding data fields Symbology tab– to create a map with gradient colors for number of species Exporting data From excel sheet From selection Adding a Legend Exporting selected data Symbology Tab Adding and editing a Legend

6 Problems/Solutions Solutions Problems
Yellow-billed Cuckoo Sharp-shinned Hawk Problems Solutions Not matching projected coordinate system between eBird data and map data Select by Attributes– mistake in equation Marin County not selected eBird data had multiple lines for same species—led to an inflated count Re-added data with same projected coordinate system Used Select by Location Selected individually and joined with eBird_counties layer and had to edit layer to add count of species Used the Dissolve tool to summarize attributes and checked total against website numbers

7 What I learned Ovenbird I learned how to use the Dissolve tool which helped me to summarize my data so that I could get the result that I wanted I learned how to Join datasets to create a layer with all the data that I needed I learned to use the Intersect tool even though I ended up not using the intersect layer in my final map. I learned to use Select by Location when I have multiple points or polygons that I need to select.

8 Final Map All pictures belong to Alison Nevins


Download ppt "From 2009 to 2017 By Alison Nevins"

Similar presentations


Ads by Google