Questions related to Movement Ecology
I'm currently working on movement ecology data.
I have plenty of Northern Gannets GPS data, and I discovered Theo Michelot work on moveHMM. I would like to use this package on my dataset, but unfortunately I don't really see how to adapt it for my data, and I'm having a few issues while trying.
So if you have some moveHMM experience, or you are also interested in using this package, I would love to exchange with you.
I am looking for a solution with the R programming environment that will allow me to simulate animal movement (using a correlated random walk or other chosen model) within a polygon boundary, which acts as a reflective boundary to the movement.
I did find a solution (http://tinyurl.com/jbyuty8), but this has ArcGIS has a program dependency. I prefer to use open-source solutions.
The "adehabitatLT" package has a number of simulation functions, but I cannot find one that allows specification of a bounday argument.
Any helpful hints out there?
Hi! I am working on bats. I am eager to mount low cost, light weight, long battery life navigation devices. I will also mount ibutton temperature and humidity sensor along with navigation device. The purpose of attaching navigation and temperature sensor to bat is to 1) measure temperature at the level of bat in the canopy of roost tree. 2). navigation device help recover temperature sensor in case temperature sensor is lost and also help track bats foraging areas. Requirement for temperature sensor and navigation device is 1) light weight (20-40gm) Measure temperature (-20 to+80) Humidity Measurement (95% RH to 100% RH) Extended battery life (>5 Years). I found out these devices Remora 2 (GPS 4G) https://www.digitalmatter.com/Devices/4G-GPS-Tracker-Devices/Remora2 and Ibutton Temperature Senor https://www.embeddeddatasystems.com/DS1923-F5--Hygrochron-Temperature-Humidity-iButton_p_101.html
Please suggest any better option for meeting my research objectives?
I have an issue and I'm hoping you can give me possible solutions or some advice. I, and two other co-authors, had an accepted paper (since 2019 October) in a great wildlife journal that has an open access condition (== it is necessary to pay a fee). At the time of manuscript submission, I was in another institution that was willing to pay my fee slice (1/3, == U$ 520). Now, I'm in another institution that doesn't have this kind of support. I now have 2/3 of the fee, I contacted the journal and explained all this, and they don't care (in fact). So, we are now wondering to change the manuscript submission to another journal (without needed payment) and start the process all again. We did not sign any license yet. (1) Could you indicate a wildlife journal with not too long a submission process? (2) Do you think if I wrote that it was an accepted manuscript in the cover letter the process could be shorter?
Thank you all
I mean all possible work with tagging data: GIS, tagging data pre-processing, visualisation, different types of modelling and modern analysis by using R, Python, etc.
I know that Fastloc is much more accurate than Argos, and this problem may cause a lot of big biases. Can you describe why we still should use Argos data?
I'm trying to review Temminck's Ground Pangolin (Smutsia temminckii) movements for a research job. But I couldn't find any research paper on this theme. Thank You.
I am currently investigating how to best discriminate between animal movement tracks based on space-use patterns and characteristics of the moves themselves. Ideally I would like to use several complementary (i.e. non-correlated) statistics to be able to come up with statements like: "these two tracks resembled each other, as they covered areas of similar size, but one of the tracks was characterised by a larger number of highly directed and highly area-restricted moves than the other". The first statement could be measured using home range statistics, but I have not found a good way to measure distribution of moves. And perhaps there are other independent characteristics of animal moves that I haven't thought about. Suggestions are warmly welcomed!
Colleagues and I are weighing options on how to fit GPS transmitters to adult Black Swans in New Zealand. Adults weigh ~4-7 kg. We're apprehensive about using collars as they may get caught in vegetation while foraging. Also concerned about satellite uplink capabilities down here (collars are only available from overseas companies). Another option is a dorsal attachment, but we've been advised against using any type of harness. We're leaning towards tail-mounting ~40g transmitters (Sirtrack PinPoint Iridium) to tail feather(s) just after moult. We should be able to get ~3 fixes per day for 9 months, which would cover winter and the following breeding season. However, we're concerned about whether these will stay attached. Tail-mounting has been done on gannets, penguins, gulls... but I haven't seen this on swans or other large waterfowl. Curious if anyone has any suggestions.
Thanks in advance.
We wish to get recommendations on GPS to use (UHF local downloading at a base station close to nest) for Ospreys (Pandion haliaetus). We wish to track hunting activity during breeding and register air-to-water plunge diving. The fixes have to be frequent so we could get data on fish capture localities (e.g. 5 min). Including accelerometer and altitude data.
I have tracking data for four wild dog packs in South Africa and my coordinates have been converted into latitude and longitude. I am following the example in the manual for Analysis of Animal Movements in R, however I do not understand how they formatted the X and Y data in the puechabonsp dataset.
for my study I would like to buy few wind data loggers with vane and speed sensors, would you suggest me some average quality instruments?
I do not need fine-scale measurements, just basic tools.
I am currently working for the first time on a project with hidden Markov models as a tool for analyzing movement data for honeybee flight paths. While I have some background in the literature and understand relatively well the concepts involved. I could use a good reference for getting started on the actual programming of these models, especially in a medium like R. The primary problem with the one reference I've found with code so far is the lack of any environmental covariates with which to associate the data. The data just consists of x/y/t, and the releases took place in a field essentially homogeneous enough to prevent using any LU/LC data as a covariate.
We have recently developed a tracking system capable of following several individuals keeping their correct identities in spite of crossings or overlaps (www.idtracker.es). It will be published in Nature Methods in June. The current version of the software is in Matlab, and we are now considering changing to another programming language. The main reason to change is to make it easy for other developers to join the project.
We have two questions, and even if you are not an expert in the pros and cons of the different languages, we would like to know your opinion about the first one:
1- If you considered contributing to an open-source project, what programming language would be easier and more attractive for you?
2- What is in your opinion the most adequate programming language for our project, and why?
Our requirements are:
- Powerful image processing tools
- Possibility of having a user-friendly interface
Additional advantages we would value:
- A large community of developers
- Simplicity of the language
- Good performance