Movebank (www.movebank.org) is a free online database of animal
tracking data, where data owners can manage their data and have the
option to share it with colleagues or the public. If the public or a
registered user has permission to see a study, the study can be
downloaded as a .csv file and imported directly into R (see “An
introduction to the ‘move’ package” vignette for details). Those with
Movebank accounts can also log in, browse and download data they have
access to directly within the Move package.
This vignette gives examples of how to login, search for studies, get
sensor, animal and study IDs, download location data and non-location
data, and access data from the Movebank Data Repository. All results
will be based on the studies for which your account has permission to
view or download. Movebank users retain ownership of their data and
choose whether and with whom to share it.
To get more details of the options of a specific function, see the
functions help file.
A possible workflow could look like this:
First you always have to create an object containing your
credentials of your Movebank
account in order to use the functions listed in this manual (except for
Section 6.):
1. Login to Movebank
Then you can search for studies or get information about studies,
animals, tags, etc.:
2. Search for a study name and MovebankID
3. Get information about the study, tags, animals and
deployments
Once you know the study name and the kind of data you want to
download you can:
4. Download the location data of a study as a
move/moveStack object
5. Download the location data of a study as a
data.frame
6. Download the non-location data of a study as a
data.frame
To download data published in the Movebank Data Repository you do
not need to have an account on Movebank:
7. Download data from the Movebank Data Repository as a
move/moveStack object
There are two ways to login. Either you login every time you use the
functions that are presented in this vignette, or you use the
movebankLogin() function to login to Movebank and create an
object that stores your login information. You can pass this object on
to every function you use to skip the login process. Use the username
and password which you use to login on Movebank. Note that the password is
stored in this object meaning that if you store the session or objects,
these are stored in plain text. If you want to hide the password while
typing it might be worth to have a look at the package: “getPass”.
If you do not have a Movebank account, you can register at https://www.movebank.org
or download csv files of publicly available studies directly from
Movebank and read them into the Move package as described in the help
file of the move() function.
You can use the searchMovebankStudies() function to
search within the study names for a specific study. For example, if you
want to find all studies that worked with goose try the following:
You may rather use the search term without the first letter, e.g. ‘oose’ instead of ‘Goose’ or ‘goose’, to find studies with both ways of writing.
All of the functions presented here can work with the study’s
Movebank ID or the study name to find information within the database.
Note that study names can be changed by the user, while the Movebank ID
is created by the database and will always remain the same. If you want
to work with the short Movebank ID instead of the longer study name, use
getMovebankID(). This number can also be found on the
‘Study Details’ page of the study on Movebank.
NOTE: Agreement to license terms: to be able to download data from a study on Movebank in R, you might first have to accept the license terms for the study. For this go to www.movebank.org, search for your study of interest, click on the download tab, and accept the license terms. This only has to be done once per study.
An entire study can be downloaded:
Or you can specify to download data for one or several individuals:
You can also limit your download to a given time range. The timestamp has to be in format ‘yyyyMMddHHmmssSSS’ or as a POSIXct, then it is converted to the character using the UTC timezone:
# download all data between "2003-03-22 17:44:00.000" and "2003-04-22 17:44:00.000"
bci_ocelot_range1 <- getMovebankData(study="Ocelots on Barro Colorado Island, Panama", login=loginStored,
timestamp_start="20030322174400000",
timestamp_end="20030422174400000")
# alternative:
t <- strptime("20030322174400",format="%Y%m%d%H%M%S", tz='UTC')
bci_ocelot_ranget <- getMovebankData(study="Ocelots on Barro Colorado Island, Panama", login=loginStored,
timestamp_start=t,
timestamp_end=t+as.difftime(31,units='days'))In case the study contains duplicated timestamps, you can set the
argument removeDuplicatedTimestamps=TRUE. This will retain
the first of multiple records with the same animal ID and timestamp, and
remove any subsequent duplicates.
bci_ocelot <- getMovebankData(study="Ocelots on Barro Colorado Island, Panama", login=loginStored,
removeDuplicatedTimestamps=TRUE)Duplicated timestamps can occur for many different reasons. In some
cases, one duplicate record might contain more complete information or a
better location estimate than the other(s). In case you want to control
which of the duplicate timestamps are kept and which are deleted, we
recommend to download the data as a .csv file from Movebank or to use
the function getMovebankLocationData(), find the duplicates
using e.g. getDuplicatedTimestamps(), decide which of the
duplicated timestamp to retain, and than create a move/moveStack object
with the function move(). These flagged duplicated records
can be also marked as outliers in Movebank, by adding an attribute like
e.g. “manually_marked_outlier” to the study. Another option is to edit
the records in Movebank and mark the appropriate records as
outliers.
If the study to be downloaded has many locations (probably in the order of 10s of millions, depends a bit on the available internet speed), the download may take so long that the connection breaks, and the study cannot be downloaded. We recommend to download each individual separately to ensure a successfully download. Bellow some examples of how one could do this.
## fist get the animal names of the study
animalDF <- getMovebankAnimals(study="Ocelots on Barro Colorado Island, Panama",login=loginStored)
animalNames <- unique(animalDF$local_identifier[animalDF$number_of_events>0]) ## to make sure only to include the animals that actually have locations
## if one is sure that all individuals in the study have locations, this is a shorter way to go
# animalNames <- unique(getMovebankAnimals(study="Ocelots on Barro Colorado Island, Panama",login=loginStored)$local_identifier)
## OPTION 1: create a loop to download each individual and afterwards create a MoveStack (if study is very large, maybe option 2 is better)
animalList <- lapply(animalNames, function(x){
print(paste0(x," (",match(x,animalNames), " of ", length(animalNames),")"))
getMovebankData(study="Ocelots on Barro Colorado Island, Panama", animalName=x, login=loginStored, removeDuplicatedTimestamps=T)
})
ocelotsMS <- moveStack(animalList, forceTz="UTC")
## OPTION 2: if the study is very large, loading and handling the large moveStack might be very time consuming and somewhat frustrating. Therefore it might be a good idea to save each individual separately as e.g. a .RData file, and do subsequent analysis always looping through all the single individual files
animalList <- lapply(animalNames, function(x){
print(paste0(x," (",match(x,animalNames), " of ", length(animalNames),")"))
ocelot <- getMovebankData(study="Ocelots on Barro Colorado Island, Panama", animalName=x, login=loginStored, removeDuplicatedTimestamps=T)
save(file=paste0("/path/to/my/folder/OcelotsIndv/",x,".RData"), ocelot)
})NOTE: Agreement to license terms: to be able to download with R the data of a study on Movebank, you might first have to accept the license terms for the study. For this go to www.movebank.org, search for your study of interest, click on the download tab, and accept the license terms. This only has to be done once per data set.
To download the location data from a study you can use the
getMovebankLocationData() function. It returns a
data.frame. Data from different sensors can be downloaded
by specifying the sensor name in the sensorID argument. The
valid names for the sensorID argument are those of the
column ‘name’ or ‘id’ of the table returned by
(getMovebankSensors(login=loginloginStored). Location
sensors (e.g. GPS, Radio Transmitter,…) are those marked as ‘true’ in
the ‘is_location_sensor’ column of this table.
Download location data for a specific individual for a specific
sensor. A vector of several sensors can be stated in the argument
sensorID and/or of several individuals in the argument
animalName. If the animalName argument is left
empty, the data of all individuals is downloaded. If the
sensorID argument is left empty, the data of all available
location sensors of the study is downloaded:
Location data can be also downloaded for a specific time range (See Section 4.3. for more details):
There is also the option to include the locations marked as outliers
in Movebank by setting the argument includeOutliers=TRUE.
This is based on the column visible of the data.
If the study to be downloaded has many locations (probably in the order of 10s of millions, depends a bit on the available internet speed), the download may take so long that the connection breaks, and the study cannot be downloaded. We recommend to download each individual separately to ensure a successfully download. Bellow some examples of how one could do this.
## fist get the animal names of the study
animalNames <- unique(getMovebankAnimals(study=74496970,login=loginStored)$local_identifier)
## OPTION 1: create a loop to download each individual and afterwards rbind into one large data.frame (if study is very large, maybe option 2 is better). Use the "TryCatch" function in case there are individuals with no data.
animalList <- lapply(animalNames, function(x){
print(paste0(x," (",match(x,animalNames), " of ", length(animalNames),")"))
tryCatch(getMovebankLocationData(study=74496970, animalName=x, sensorID="GPS", login=loginStored), error=function(e) NULL)
})
storksDF <- do.call("rbind", animalList)
## OPTION 2: if the study is very large, loading and handling the large data.frame might be very time consuming and somewhat frustrating. Therefore it might be a good idea to save each individual separately as e.g. a .RData file, and do subsequent analysis always looping through all the single individual files. Use the "TryCatch" function in case there are individuals with no data.
animalList <- lapply(animalNames, function(x){
print(paste0(x," (",match(x,animalNames), " of ", length(animalNames),")"))
tryCatch({storkDF <- getMovebankLocationData(study=74496970, animalName=x, sensorID="GPS", login=loginStored)
save(file=paste0("/path/to/my/folder/StorkIndv/",x,".RData"), storkDF)
}, error=function(e) NULL)
})NOTE: Agreement to license terms: to be able to download with R the data of a study on Movebank, you might first have to accept the license terms for the study. For this go to www.movebank.org, search for your study of interest, click on the download tab, and accept the license terms. This only has to be done once per data set.
To download the non-location data from a study you can use the
getMovebankNonLocationData() function. It returns a
data.frame. Data from different sensors can be downloaded
by specifying the sensor name in the sensorID argument. The
valid names for the sensorID argument are those of the
column ‘name’ or ‘id’ of the table returned by
(getMovebankSensors(login=loginloginStored). Non-location
sensors (e.g. Acceleration, Magnetometer,…) are those marked as ‘false’
in the ‘is_location_sensor’ column of this table.
Download non location data for a specific individual for a specific
sensor. A vector of several sensors can be stated in the argument
sensorID and/or of several individuals in the argument
animalName. If the animalName argument is left
empty, the data of all individuals is downloaded. If the
sensorID argument is left empty, the data of all available
non location sensors of the study is downloaded:
Non location data can be also downloaded for a specific time range (See Section 4.3. for more details):
There is also the option to download non-location data with the
getMovebankData() function. With the argument
includeExtraSensors=TRUE data of all non-location sensors
available for that study will be downloaded and stored in the
unusedRecords slot. With this option it is not possible to
select specific sensors.
If the study to be downloaded has a lot of data (probably in the order of 10s of millions, depends a bit on the available internet speed), the download may take so long that the connection breaks, and the study cannot be downloaded. We recommend to download each individual separately to ensure a successfully download. Bellow some examples of how one could do this.
## fist get the animal names of the study
animalNames <- unique(getMovebankAnimals(study=74496970,login=loginStored)$local_identifier)
## OPTION 1: create a loop to download each individual and afterwards rbind into one large data.frame (if study is very large, maybe option 2 is better). Use the "TryCatch" function in case there are individuals with no data.
animalList <- lapply(animalNames, function(x){
print(paste0(x," (",match(x,animalNames), " of ", length(animalNames),")"))
tryCatch(getMovebankNonLocationData(study=74496970, animalName=x, sensorID=2365683, login=loginStored), error=function(e) NULL)
})
storksACC <- do.call("rbind", animalList)
## OPTION 2: if the study is very large, loading and handling the large data.frame might be very time consuming and somewhat frustrating. Therefore it might be a good idea to save each individual separately as e.g. a .RData file, and do subsequent analysis always looping through all the single individual files. Use the "TryCatch" function in case there are individuals with no data.
animalList <- lapply(animalNames, function(x){
print(paste0(x," (",match(x,animalNames), " of ", length(animalNames),")"))
tryCatch({storkACC <- getMovebankNonLocationData(study=74496970, animalName=x, sensorID=2365683, login=loginStored)
save(file=paste0("/path/to/my/folder/StorkIndv/",x,".RData"), storkACC)
}, error=function(e) NULL)
})This function downloads data from the ‘Movebank Data
Repository’. It returns a move object (if only one
individual is included) or a moveStack (if several
individuals are included). If data of non-location sensors are included
in the data set, these will be stored in the unUsedRecords
slot of the move object.
Visit the dataset’s repository page by preceding the DOI with https://dx.doi.org/<\(doi\)>, for example https://dx.doi.org/10.5441/001/1.2k536j54. From here you can view citations and download a README that might contain additional details needed to properly understand and reference the data. If analyzing these published datasets, always consult the related papers and cite the paper and dataset. If preparing analysis for publication, also contact the data owner if possible for their contribution.