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Re: Recording transect surveys

Currently to record transect surveys I do the following:
Create a location as as site then, create sub-sites for the stops/walks that make up the transect. I then create an event and then create a sample record for each of the sub-sites irresepective of whether something is recorded or not. Then create a taxon occurence for the sample record as required. It seems a long winded way to do this.

I am doing it the best way? Are there better options to create this data?

I am also interested in be able to do these surveys by recording the route using some sort of GPS technology. Would it be possible to transfer this information into Recorder? Which could then be used to record species against and do mapping?

Cheers for now

Gary

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Re: Recording transect surveys

Gary

There are many ways of looking at this, but my thinking is that you can look at a transect as  a set of linked samples.  A Survey Event is in effect a set of linked samples so by creating an event for each transect and creating a sample for each point sampled you have all you need. You could use sample reference to  give an order to the samples,  and so not as to confuse transect samples with normal samples within events you could give them a  sample type of say 'Transect'. Taxa can be added to the sample for each point and you could if needed use sample measurement to record other information.

As far as Locations are concerned you can have them if you wish, but I would not  have considered a Location for each point in the transect as being necessary.  Personally, I like to be sparing with Locations  and would only use them in situations where they have some specific use in reporting . Consequently,  I only use Locations for clearly defined areas (ie with a known boundary), where I would wish to report on the Location as such and also only if I am likely to able to use it for additional input.  Under these criteria I personally would at most  have one Location for the event and samples  perhaps not even that, but it up to you.

The Report Wizard wouldn't be of much use to get to the data about specific transects, but all the data  would be there to get out the information using an XML report. In fact when  working out the best way to record data, it is a good idea to first work out  your reporting needs. You can then make sure that all the data you require  for your reporting has been collected.

Sorry, but I don't know much about what could be done with GPS.


Mike

Mike Weideli

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Re: Recording transect surveys

Hello Mike,

Thanks for your reply. I have made the mistake of thinking that you must enter a location for the event/sample record.

The end result that I am looking for is firstly, to be able to display on a map where the species were recorded on the transect. Secondly, I wanted to be able to have a report which listed the details for the transect even if no recordings were taken for any of the sections. I did create a report to print survey details off. It is probably something that I would have to modify to create a transect style report.

The other question that this has led to is, could I create a 'dummy' transect type record (survey event and samples). Then every time I wanted to record a similar transect I could copy this and amend as necessary? I can only see an option which allows you to copy and move a survey event and its samples.

Cheers for now

Gary

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Re: Recording transect surveys

Gary

The map needs bit of thought, but I suspect you can do it from the results of a report.  The report would certainly be possible. You can't create a dummy record in the way you suggest, but you could create an excel spreadsheet with the information and import this via the Import Wizard. Not sure if all the fields you need can be imported, but most can. You would need to experiment a bit with this to stop Recorder just adding the transects samples  to an existing Survey Event rather than creating a new one..

Mike

Mike Weideli

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Re: Recording transect surveys

Hi Gary
If you want to create a report of a transect which shows the points where you recorded but found nothing, then you are correct you need to add samples for each of these points to the survey event. The Report Wizard will not output empty samples though. You can get round this by an XML report, though a simpler solution may be to record a high level taxon with an abundance of zero. For example if doing a bird transect walk, you could make an observation of Aves with abundance set to zero for each sampling point where nothing was recorded.
If your transect is followed and records take as you go without specific sampling points, then you can't really do this. All you can do is record the exact path of the transect, perhaps by attaching a GPS file to the survey event as a source, and the observations themselves.

I haven't actually done it yet, but I've had a look at the KMZ and GPX file formats which my GPS can save and both could quite easily be parsed to get a route. What I had thought about was a data entry form which takes a GPS export file, then you just enter the species you saw and the time you saw them. It can then work our your position for each observation. Just a thought at the moment but it certainly looks possible.

Best Wishes

John van Breda
Biodiverse IT

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Re: Recording transect surveys

Hello,

The data entry type screen certainly sounds interesting for getting this type of information in.

It seems to me at the moment that they exist as two seperate entities. You can map the data (when there are occurences) and there is software out there that maps gps routes.

Tying the two together is a bit more difficult. I guess if you created these two there would be a way to overlay the two maps in some way? Also the map need to be current to be useful.

The data import wizard works fine and allows you to create a basic transect survey event/sample/occurrence. Unfortunately, you cannot import sample reference. As I found out the other day as well Recorder  sorts the samples by this reference. That means using the comment field to name the transect type e.g. Stop1, Walk 1 etc.

I also found that when you don't use the locations file. The Observations window shows the survey event as the grid ref. In a way that is good as it makes it stand out from the rest. But, it would be nice to have the location name in there.

I did have a brief look at DMAP and the website mentioned Mike's excellent downloads to create input to this. It does seem to have more options than the inbuilt Recorder Mapping. As it is a distribution mapping I am not sure that this is flexible enough to do what I am looking for?

Maybe within recorder it would be better to forget about developing Mapping and partner with someone who provides a fuller spec. mapping system?

I seem to have opened a bit of a can of worms with this but I don't think it is not achievable. For me anyway, a lot of this is relevant to doing normal entries.

Cheers for now


Gary

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Re: Recording transect surveys

I haven't any experience of working with transects and GPS but offer the following link in case it is useful (although as I haven't tried anything you are talking about, that is not too likely!).

http://www.dnr.state.mn.us/mis/gis/tool … armin.html

I came across this free program when I wanted to convert a google earth kml file into a shapefile. If you have the right kind of GPS I think you should be able to use it to turn a route, track or list of waypoints into a straight text file to which you can add your species records (or dummy taxa 0 records) for import into recorder. Using the same program, you could also convert it into a shapefile which you can then import as a "polygon layer" in Recorder so you can display it within Recorder with the species records. (A polygon layer can contain lines and points.)

-----------------
Teresa Frost | Wetland Bird Survey National Organiser | BTO
Other hat  | National Forum for Biological Recording Council
(Old hats  | NBN Board, ALERC Board, CBDC, KMBRC)

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Re: Recording transect surveys

Hello Teresa,

That's a bit of a coincidence. I found some software called Mapmaker as it seemed to offer an opportunity to learn about GIS/map making. It has a version that is free. It mentions in one of its tutorials about using the garmin software. I think the example they gave was using google earth to create a custom map.

There seems to be quite a few solutions out there so I will have to see what fits best for what I am trying to do. It maybe that I am setting a goal that is not achievable or possibly too time consuming. Anyway, there is plenty to think about and learn about.

Cheers for now

Gary.