[Mastwatch] Casual observations at Gunung Palung
m.visser at science.ru.nl
Fri Aug 12 12:26:42 PDT 2011
Dear Cam, Serge and others,
I am currently developing a tree demography data server in
collaboration with the Smithsonian and Radboud University
(Netherlands) to host phenology data.
The server will offer the ability to upload data to a mysql database,
and interactive data analyses to users (it could therefore
in theory display maps on demand - if these maps can be translated to
I am willing to offer some server space for a Mastwatch dataset along
the lines you describe (including a page to display information
on current general flowering events/ maps). There are quite a number of
questions that could be answered if this data is uploaded frequently
for a considerable amount of time.
The beta testpage is up and running (http://tredd.science.ru.nl:8080).
Please note that this page is under development and is far from its final
form so please don't distribute the address beyond this list for now.
Let me know if there is any interest,
On 08/12/2011 09:05 PM, Serge Wich wrote:
> Dear Cam et al,
> Thank you for the update on the history of mastwatch. Yoour points about the
> bias in the dataset are of course very true and we should certainly use
> caution when using these observations. But as you say it would be
> interesting to have them in a database. If we do that we can perhaps link it
> to published literature and perhaps combine them in a useful way. Not sure
> yet how, but it might be feasible. I could put things in a GIS layer if all
> people that have contributed data would simply let me know the coordinates
> of the area where they made the observations, the month and year and whether
> it was flowering or fruiting. This would be less detailed than the database
> form, but at least contain some info that might be useful. If people would
> think they would be able to do this I can send out an excel file for this
> and then later on send some maps with the data on it per year or something.
> Then we can see if there is something in it for a short publication.
> At the same time we could add a column to the excel worksheet where people
> can add whether they are interested to receive the same datasheet every 3-4
> months and then I can send it around every 3-4 months to those people. This
> would be a relatively small effort since the only thing one would have to do
> is copy down the line of the site and change the month and one per year the
> year and tick a box of whether there is masting flower or fruiting or not.
> We can add a comments column as well for people to add whatever extra info
> they have on genera and species that are masting. If data come in every 3-4
> months I can make a new map and send it out to everyone so people get a nice
> update on where mast is and where there is no mast. If people like this idea
> please let me know. Once we have a few years of data we can see if we can
> make a more solid publication out of this in addition to perhaps a short
> report to warm people up for the project.
> Let me know what you think.
> Best wishes,
> -----Original Message-----
> From: Cam Webb [mailto:cwebb at oeb.harvard.edu]
> Sent: Friday, August 12, 2011 9:30 AM
> To: Serge Wich; mastwatch at lists.phylodiversity.net
> Subject: Re: [Mastwatch] Casual observations at Gunung Palung
> Dear Serge, All,
>> I also have a question. With all the mast info from casual observations
>> and phenology datasets I was wondering whether there is a sense in
>> putting all of this in a database that is or is not spatially explicit
>> and perhaps do some analyses on it. It would still be nice to understand
>> more about masting and where it occurs and how synchronous it is over
>> larger areas or what time-shifts are between areas. I have no idea how
>> much data there are, but it might be something to try to do together?
> To develop a common source of spatially explicit masting information was
> the reason we started mastwatch in ca. 2002. Mastwatch was originally a
> community editable database of observations (see below for original site:
> ). A few observations were contributed, including a large dump of data
> from Shinya Numata's 2003 AJB paper, but mastwatch as a database wasn't a
> great solution for social reasons (not much fun to participate in!). In
> 2007, I switched it to this mailing list, and we have now accumulated a
> good set of observations over the past four and a half years (see
> for the (public) list archives. An email is easier to contribute than
> formatted data, and more fun to read, but it is less likely that a free
> text email will contain complete information for an analysis. The other
> obvious problem with using these data for analysis is that the data points
> are very spatially skewed to sites where people have heard of this
> project, and have some incentive to contribute observations. A much
> better strategy for the future would be to identify 15-20 sites where
> there are people we know who are on email and are in the forest on a
> regular basis, and who would respond to a request for masting observations
> every 3-4 months. Anyone interested/have time to pursue this?
> All this said, it would be great if someone wanted to go back through the
> archives and wrangle the observations into a tabular format. Even if the
> patterns emerging were not that satisfying, someone could still write up a
> short paper with the data we do have simply to publicize the project and
> recruit more observers.
> Any other ideas on good ways to move forward with this project, other
> than in its current form, which I hope will continue for years more. And
> thanks to everyone for sharing their masting news. I for one really enjoy
> reading these live `forest news bulletins.'
> Best wishes from West Kalimantan,
> Mastwatch mailing list
> Mastwatch at lists.phylodiversity.net
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