Group

Animal Movement / Feed

Animal movement technologies are revolutionizing our understanding of wildlife, revealing insights like migration patterns, key corridors, and the impacts of mounting pressures on natural systems. As we continue to develop these tools and work toward translating movement data into actionable insights, coordination between efforts is essential. This group is a place for the animal movement community to connect and discuss our efforts to advance the field.

discussion

Tools for animating 3D flight paths from GPS and altitude data

Does anybody have advice for software or websites that you can simply upload GPS and altitude data to create a 3D animation of an animal's flight path? I'm looking for something...

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Hi Maggie!

I have used Google Earth Pro for quick and dirty animation of movements of muskoxen.

I prepared .gpx file with the online and free service https://www.gpsvisualizer.com/

based on .csv files of the track logs and simply "dumped" these in Google Earth Pro.

I then simply did screen recordings of the animated playback playing a bit with the time scale to adjust speed.

I am not sure if it would work as good for "3D flight tracks" though. 

Cheers,

Lars

 

Cheers,

Lars

Hi Maggie,

Welcome to the base of Mt. Everest.

 

I am in this group because I have been working and developing software to document 3D points and capture audio -- not for wildlife, but for wild jets that continue to increase over our historic district in Salem, OR.

You can start with KML in Google Earth, but bear in mind that development of Google Earth has been halted.  I've seen hints on something else in the works that Google may announce in the next year or two.  To work with KML, knowing a good scripting language such a Perl or the the snake language will help because you can easily migrate altitude (beware English/metric), latitude, and longitude into the XML structures defined within KML.  That is what I first did.

Then when you start working with points about the earth, you get into the area of spatial reference systems (start with: Wikipedia) and then it becomes evident you will need in your tool box Postgresql with the PostGIS extensions -- both excellent tools which I embrace and recommend whole heartedly and have been using for over a decade (outside of my former employment at the world's largest database company).

QGis with the plugin Qgis2Threejs will be a fun foray into visualizing three dimensions, but development on the plugin has waned and there are shortcomings.

The next step is looking into MapLibre-GL family and Threejs and see each one's "examples" demonstrations -- that probably is the best way to immerse yourself into what these projects can do, combining these two architectures supplants the  Qgis2Threejs approach and currently is my choice of architectures to accomplish the various 2 and 3 dimensional tasks I hope to achieve.  Then you will run into the unfortunate state of affairs of what was once unified open source architecture forking into for profit ventures and an open source alternative.  I am an enthusiastic supporting of open source, having been a Gentoo Linux enthusiast since 2002(?).

Right now I've prototyped some pretty amazing animated diagrams and maps, but it took me as a retired software developer months to get where I am.  I don't want to discourage you, but at the same time I want you to realize that the journey is a long one filled with a variety of technologies that have been affected to politics (for-profit vs. non-profit).  I grimace when I see in the United States how ESRI has just monopolized the map world - very few governments dare to venture outside of ESRI, it reminds me of the old saying from the 1960s, "you can't get fired for buying IBM".  

In summary, there is technology out here that can do marvelous things and is waiting to be harnessed, but it will take a real commitment and have some tools, e.g. a Linux server, available to you as you learn about the tools and the capabilities and shortcomings.  Much of which approach you take will depend upon your knowledge and ability (and ability to learn) of software and operating systems.  I feel as if i could teach several semester courses on this topic given what I have learned.

Just a few things to watch out for:

  • English vs. metric.  In aviation, altitudes are emitted as units of feet, but in Google Earth and Postgis, altitude is metric.
  • spatial reference SRS of the data and the model you're working in, you need to make sure apples are apples.
  • Open source fatigue -- a once well attended-to project can quickly become abandoned or neglected by its developer and as standards change, become incompatible
  • Blender - a 3D modeler is extremely complicated, I asked ChatGPT how long it would take to become proficient and it responded 1-2 years.  But if you are focused on wildlife, and not jets, then Blender may not be an avenue to pursue.

And as a closing note, I have found ChatGPT to be invaluable -- however, it can be stubbornly wrong -- it's like having a pupil or a supporting team member.  I recommend you consider giving ChatGPT a try as you dive into technologies, I've found it invaluable for SQL (Structured Query Language used in databases).  ChatGPT can provide a breadth and answers which otherwise might take many hours to learn about.  I've almost become evangelical about it -- the leaps and bounds I've made in my mapping/animation projects comes from the assistance I obtained from ChatGPT (Google's Gemini, by the way, continues to disappoint many times).

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discussion

Low Temperature VHF Transmitter

I'm looking for a lightweight VHF transmitter rated to very low temperatures, ideally down to -40C. Does anyone know of any transmitters like this? Lotek makes some down to -30C (...

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Telonics MK11 and MK12 transmitters specify operation down to -40C.  The battery will be a big factor.  Most chemistries fail or have degraded performance at temps that low.  Their reps will be able to tell you what battery options they have.   Cheers.

Hi Jesse, how are you? tricky request, batteries at very low temperatures will consume a lot faster

how big do you need it? a liitle help solution is to make a temperature isolation case and use black epoxy, but it depends on the size and weight that you need on the device.

Usually at -40°C life expentacy can lower down 40%

www.telenax.com 

info@telenax.com

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event

Catch up with The Variety Hour: August 2024

This month, we hear about acoustic imaging sonar that reveals northern elephant seal behaviour, GPS tags that monitor the success of rehabilitated and reintroduced Andean condors, infrared cameras that detect thermal...

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discussion

Enhancing Public/Private Safety and Health Through Toilet Mapping

IntroductionToilets are essential facilities that ensure hygiene and convenience in our communities. However, during periods of heavy rainfall, these vital structures often face...

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discussion

Move BON Development: Follow up discussion

Hey Biologging Community! We just launched a new initiative to mobilize animal tracking data in support of national and global scale conservation goals (learn more here!). If you...

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Hi Talia! 

I feel like the topic is so broad that it might help to put some constraints around things, see what works, and then broaden those out. I have a lot of ideas regarding the data monitoring and collection side based on the other sensor and observation networks we've set up in the past. 

There may also be some potential scope to incorporate things like data collection and integrated monitoring to the Build Your Own Datalogger series where the system is updated to feed data into the observation network. 

It'd probably take a bit of discussion and coordination. Let me know if interested. I'm fine to jump on a call or discuss via email too.

@cmwainaina please take a look

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discussion

RFID Tech for small animals?

Hi All,I'm working on a project that might require some tech work and as of yet am not a 'tech person' so have been pointed in this direction. It's a pretty common problem that...

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Not what you asked for (sorry), but if they are cryptic then a possible first step could be to deploy capacitive sensors everywhere, to get a sense of where they like to hang out and when.  I'm thinking of TTP223 touch sensors attached to a data logger.

Hi Emily,

RFID tags and an array of readers is certainly possible. We developed a system for tracking translocated species using long range radio (LoRa) and internet of things (IoT) technology and our antenna read distance is greater than 3cm (dependant on orientation of the antenna to the RFID chip it ranges between 3.8 - 15.3 cm). The first prototype was tested locally with house mice (see Ross et al 2022) and the second prototype was tested on an isolated off shore island to monitor 3 translocated species (this work is currently being written up). We are now working on securing more funding to use satellite connectivity for deployment in even more remote locations. 

Flick me an email and I can send our paper and slides from a conference the work was presented at.

https://doi.org/10.3390/automation3030022

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discussion

How to add a salt water switch

Hi – I’m working on developing a GPS / LoRa tracker for Diamondback Terrapins (DBT) with some colleagues. DBTs spend a lot of time in brackish water and we’...

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Hi, @nedhorning, sounds fascinating! I'm going to listen in to hear how things progress, including with the capacitive sensor described in this thread. That sounds wise as it insulates the electronics. 

Also wanted to mention that we use a comparator circuit following a reference design from TI that I can't find at the moment but probably could with more digging if desired. We described its basic design and use in a saltwater switch in this paper (open access) if you want to read a bit more. 

https://www.sciencedirect.com/science/article/pii/S0278434322001029

Hello @ThomasGray_Argos ,

I need to add transmitting component, so please provide me the list of these. Actually, I don't know much about it. I am interested in learning new things.

I am new here but a real enthusiast and loving this community so far. I have a background in technology and feel I could help with documentation, at least for starters. If you have any other question apart from this, you can ask. I will try my best to solve your problem. 

Sorry @Paloma  - somehow this reply escaped me. 

There are different transmission solutions depending on what you are trying to transmit, how much, how often, from where, etc. In general, you have local systems, acoustic systems, and satellite systems with a number of different providers/solutions within each. THE Inventory might be a good place to explore.

https://wildlabs.net/inventory
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discussion

VIHAR-2024 deadline extension, June 30th (Interspeech satellite event) 

Dear Wildlabs community,The submission deadline for VIHAR-2024 has been extended to June 30th, 2024. VIHAR-2024 (https://vihar-2024.vihar.org) is the fourth international...

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Thanks for sharing this @nkundiushuti ! I think this post would be better suited as an event, that way it will show up on the WILDLABS event calendar page. Let me know if you have any questions on how to make an event post! You just click the +Post button in the top right corner, then click "event."

hi Alex!! I already posted the event, I just wanted to posted an update: the deadline was extended. 

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article

New WILDLABS Funding & Finance group

WildLabs will soon launch a 'Funding and Finance' group. What would be your wish list for such a group? Would you be interested in co-managing or otherwise helping out?

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This is great, Frank! @StephODonnell, maybe we can try to bring someone from #Superorganism (@tomquigley ?) or another venture company (#XPRIZE) into the fold!
I find the group to be dope, fundraising in the realm of conservation has been tough especially for emerging conservation leaders. There are no centralized grants tracking common...
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discussion

Who's attending the World Biodiversity Forum in Davos?

Hi all, @StephODonnell and I are making plans for our trip to Davos in June for the World Biodiversity Forum. Is anyone else planning to be there? We'll be presenting the findings...

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Sounds great.
At what day will you present your talk?

Greetings from Austria,
Robin

We'll be presenting Wednesday morning as part of session 10.1b on "Integrating earth observations and biological tools in ecology and evolution to cogenerate knowledge towards meeting the Kunming-Montreal Global Biodiversity Framework targets." For the side events, we're planning tentatively for a social Monday evening (following the welcome Apéro) and a meeting Wednesday during or after lunch on leveraging animal movement to meet conservation/policy goals. 

We'd love to see you!

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discussion

Fully-retrievable Satellite Tags for Seals?

Hello WILDLABS biologgers! I am wondering if anyone knows of any satellite telemetry devices for use in the marine realm (specifically for pinnipeds - seals/sea lions) that...

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Hi Courtney,

I haven't read through all the Wildlife computer options but I have heard of people using Zinc Anode disks as a type of slowly degrading attachment point for tags. We use these also as a backup for other types of releases on Oceanographic moorings etc. It would take some testing to see how the zinc could be attached or be small enough to degrade completely away from the pinniped but still be strong enough to hold a tag.....just some thoughts!

Cheers,

Stuart

Honestly, no (at least not for wildlife applications).

I suspect for the manufacturing community it's a balancing act, and I am not confident that the manufacturing community has invested a lot of resources or effort to integrate sustainability in their tag designs specifically related to the materials. Reasons that come to mind are material durability and cost (both materials costs and cost to for R&D). 

With that said, I think Stuart (below) makes a good suggestion...

We are ready to make efforts on materials, but today there are few solutions available. Today, our partners' R&D efforts are focused on renewable energies and the energy source's capacity. In the absence others solutions, and to take action, we have chosen to develop solutions to recover these tags, some of which are reusable (thanks to Gonio RXG-234 @ThomasGray). To date, thousands of tags have been recovered and some reused. This is the "upcycling" of science! It's a small step, but a great leap forward!

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discussion

Acoustically Transparent Epoxy

Hello all,I'm developing an animal-borne passive acoustic monitoring system and plan to pot the internal electronics in the housing with epoxy to waterproof the system. We're...

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Same issues here. A MEMS is a great idea to pot, but you really need a piezoelectric element for this to work and not a MEMS based on capacitance (btw they're all capacitance, except for one now discontinued...). It was originally made by Vesper, but the company was bought out last year and the MEMS is no longer made. 

This is because you're no longer really doing a typical microphone, this would be a contact type hydrophone. For waterproofing, you can actually get a waterproof MEMS. As long as your not submerging this for an extended period, it should do the job. Be sure to keep the cable short between the PCB and the mic as you'll get noise as I've experienced. 

For generally answering your question on the "best" epoxy to with sound transparency, in general the harder the material the lower the acoustic impedance. I use Epotec 301 resin with a hardness of 85. Your shape will also influence the resonance frequencies, meaning the flat frequency response will now be distorted and you'll probably have distorted audio. . 

You generally don't want to pot MEMS microphones since they're designed to pick up on air pressure changes and adding any material in front of the microphone just introduces another transition layer where pressure waves need to propagate through. Also, potting the MEMS microphone can be tricky since if you get any material in the port, you could damage the microphone or drastically reduce its performance. If you want to seal something with epoxy, take a look at contact microphones. Higher frequencies will be attenuated but depending on the application, it could work. 

There are companies, however, that design fabrics that are waterproof/resistant but have a relatively low acoustic impedance. SAATI has a variety of samples that you can request and GORE makes Acoustic Vents that could work. You can design a mechanical housing around your MEMS microphone with small perforations that are covered by one of these materials. I did this for one of my latest projects and it holds up just fine in heavy rain conditions. 

Hi Jesse,

For a material to be acoustically transparent (in air), the speed of sound in the material times its density must match that of air.  Realistically, any solid material will have a greater density than air, and a higher speed of sound to boot, so I'm afraid there's no way to match it to air.  Sorry.

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