On Apr 9, 2022, at 10:58 AM, suehayes <sueh...@yorku.ca> wrote:
Does anyone know if the Motus tower point locations exist as either a .shp or geodatabase for use in ArcMap I am wanting to add them to my GIS project to use in my analysis but need the tower locations.
Any help is appreciated.ThanksSue
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The Motus Wildlife Tracking System (Motus) is an international collaborative research network that uses coordinated automated radio telemetry to facilitate research and education on the ecology and conservation of migratory animals. Motus is a program of Birds Canada in partnership with collaborating researchers and organizations. Learn more at https://motus.org
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Hey Josh and others,
I’m also interested in getting receiver location info, but I’m curious about whether there is a way to do this so that we can specify a particular time, and receive a database or list of stations that were actively receiving data and have since uploaded data from that time period. Any thoughts?
Andy
Andy J. Boyce, PhD | Ecologist
Smithsonian Migratory Bird Center | Great Plains Science Program
Smithsonian Conservation Biology Institute
91 Campus Drive PMB 1605
Missoula, MT 59801
From: motu...@googlegroups.com <motu...@googlegroups.com>
On Behalf Of jsayers
Sent: Saturday, April 9, 2022 1:21 PM
To: Motus Wildlife Tracking System <motu...@googlegroups.com>
Subject: [motus-wts] Re: .shp or .gdb for Motus tower locations
External Email - Exercise Caution
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The Motus Wildlife Tracking System (Motus) is an international collaborative research network that uses coordinated automated radio telemetry to facilitate research and education on the ecology and conservation of migratory animals. Motus is a program of Birds
Canada in partnership with collaborating researchers and organizations. Learn more at
https://motus.org
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Hi Andy,
it isn’t possible to query the web site for this specifically, though the online map has a slider to show when receivers are active, but the R package data contains the start and end dates (table: recvDeps and columns tsStart and tsEnd) of all receiver deployments, so you can query your local data to filter only the receiver deployments that were active at a given time. You’d need to run the metadata() function to specify access to all metadata, not only a single project.
If you are say interested in all receivers active at any point during a period (e.g. Jan 1st to Dec 31st 2021), you can use this condition to query any receiver date ranges that overlap (StartDate1 and EndDate1 being your dates to query, and StartDate2 and EndDate2 being those of the receiver deployments).
(StartDate1 <= EndDate2) and (StartDate2 <= EndDate1)
Note that active deployments will have a missing end date, so you replace it with today’s date for this purpose. Something like:
ifelse(is.na(EndDate2, now(“GMT”), EndDate2).
Perhaps someone can work out for the group how to code the full query in R. The examples in chapter 4 of the guide can be adapted without too much extra work: https://motuswts.github.io/motus/articles/04-deployments.html
Cheers
Denis Lepage
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