[Mastwatch] West Kal Mast

Ferry Slik ferryslik at hotmail.com
Thu Mar 28 06:42:02 PDT 2019


The winged fruits are very effectively dispersed by windstorms..... Given the lifespan of a tree it doesn't really matter that most seeds drop right down most years, as long as every now and then some get caught in a windstorm.....

Ferry Slik
Associate Professor & Curator of the UBD Herbarium
Faculty of Science
Universiti Brunei Darussalam,
Jln Tungku Link, Gadong, BE1410, Brunei Darussalam.

Website
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http://expert.ubd.edu.bn/profiles/johan.slik.php
<http://www.phylodiversity.net/fslik/>
Plants of Southeast Asia
http://www.asianplant.net<http://www.asianplant.net/>

Asian plant species synonym website
http://www.phylodiversity.net/fslik/synonym_lookup.htm

Faculty of Science
http://fos.ubd.edu.bn/index.html

________________________________
From: Mastwatch <mastwatch-bounces at lists.phylodiversity.net> on behalf of Lord Cranbrook <lordcranbrook at greatglemhamfarms.co.uk>
Sent: 28 March 2019 7:43 PM
To: 'Mikaail Kavanagh'; 'Ashton, Peter'; 'Wong Siew Te DJN'; 'Andreas Carlson'; mastwatch at lists.phylodiversity.net
Subject: Re: [Mastwatch] West Kal Mast


THere are always 1000's of seedlings around the base of parent trees, after a mast year. l don't think wind dispersal is very effective.

Why are the wings so brightly coloured ?

ln Sarawak engkebang fruits also float down the rivers



From: Mastwatch [mailto:mastwatch-bounces at lists.phylodiversity.net] On Behalf Of Mikaail Kavanagh
Sent: 28 March 2019 04:15
To: Ashton, Peter; Wong Siew Te DJN; Andreas Carlson; mastwatch at lists.phylodiversity.net
Subject: Re: [Mastwatch] West Kal Mast



Hi Friends,



Interesting point, Peter. I must confess to not knowing that so many of the winged fruit never make it to ground level.



Wong, the video that you circulated (thanks!) got me thinking about the relevance of the winged fruits in terms of evolutionary strategies for different sub-habitats and niches.  Presumably, there would be different selective pressures according to such differences?  In particular, has anyone looked at the wings' effect on floating - potentially for long distances - for such a riverside specialist as, for example, the Neram (Dipterocarpus oblongifolius)?



Thanks for sharing.



Mike



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On 27 Mar 2019, at 6:07 PM, Ashton, Peter <pashton at oeb.harvard.edu<mailto:pashton at oeb.harvard.edu>> wrote:



Hi Andreas and mastwatchers,



There have been several efforts to study the impact of dipterocarp winged fruit on their distance of dispersal. Bu don't forget that the vast majority rarely fall in a wind, and then only into the main canopy a few metres beneath. So studies of the comparative influence of winged versus winglessness on the fate of the embryo (trapped in the canopy versus dropping through (and then what?), survival, predation etc.) deserves study as well.



Peter

________________________________

From: Mastwatch <mastwatch-bounces at lists.phylodiversity.net<mailto:mastwatch-bounces at lists.phylodiversity.net>> on behalf of Andreas Carlson <acarlson at math.uio.no<mailto:acarlson at math.uio.no>>
Sent: Wednesday, March 27, 2019 1:54:08 AM
To: Siew Teu Wong
Cc: mastwatch at lists.phylodiversity.net<mailto:mastwatch at lists.phylodiversity.net>
Subject: Re: [Mastwatch] West Kal Mast



Dear all,



This movie was absolutely stunning! We have been working on understanding how the geometry of these flying fruits influence their flight (https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.122.024501<https://urldefense.proofpoint.com/v2/url?u=https-3A__journals.aps.org_prl_abstract_10.1103_PhysRevLett.122.024501&d=DwMGaQ&c=WO-RGvefibhHBZq3fL85hQ&r=QF7wtoDqCqPx93omg7bDZoXToRGpzsmD2pgreRf9a74&m=oEo1ZmDAtLb1DWViFO2kYJvttzDwwUn2NgZs9xNRjkc&s=yRfX3IQEdkRjsXw56pIl9QRoY70NNi19ALjC8c8aeb4&e=>).

Amazing to see this fruiting and fascinating flight!



Thanks for sharing.



Best,

Andreas.

¡ª¡ª¡ª¡ª¡ª¡ª¡ª¡ª¡ª¡ª¡ª¡ª¡ª
Andreas Carlson
Associate Professor
Department of Mathematics
University of Oslo

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Phone: (+47) 228-57223
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On 25 Mar 2019, at 10:02, Siew Te Wong <wongsiew at hotmail.com<mailto:wongsiew at hotmail.com>> wrote:



Hi all,

This video was posted in FB, taken somewhere in Sibu, Sarawak.

https://www.facebook.com/edgar.ong/videos/10155952528861232/<https://urldefense.proofpoint.com/v2/url?u=https-3A__www.facebook.com_edgar.ong_videos_10155952528861232_&d=DwMGaQ&c=WO-RGvefibhHBZq3fL85hQ&r=QF7wtoDqCqPx93omg7bDZoXToRGpzsmD2pgreRf9a74&m=oEo1ZmDAtLb1DWViFO2kYJvttzDwwUn2NgZs9xNRjkc&s=3kTuXLViT1vPv-0l0R7tAj1rkKSbbR6BrMxqnUSp25o&e=>



Thank you.



Kindest regards,

Wong



Dr (Hon) Wong Siew Te, D.J.N.

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From: Mastwatch <mastwatch-bounces at lists.phylodiversity.net<mailto:mastwatch-bounces at lists.phylodiversity.net>> on behalf of Philipson Christopher David <christopher.philipson at usys.ethz.ch<mailto:christopher.philipson at usys.ethz.ch>>
Sent: Monday, March 4, 2019 6:23 PM
To: Cam Webb
Cc: mastwatch at lists.phylodiversity.net<mailto:mastwatch at lists.phylodiversity.net>
Subject: Re: [Mastwatch] West Kal Mast



Hi Cam and all,



I just returned from south India and saw some dip fruiting in the forest reserves in Kerala.  Being seasonal forest its perhaps a bit less relevant to the Borneo fruiting - but it would be interesting to link these cycles climatically and genetically at some point!



Cheers

Chris



Dr. Christopher Philipson

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On 28 Feb 2019, at 18:53, Cam Webb <cam_webb at yahoo.com<mailto:cam_webb at yahoo.com>> wrote:



Thanks all, for the forest news from across Borneo (and beyond).

It seems the Gunung Palung mast was big: definitely biggest since Feb
2010, and maybe bigger than that one. Peak fruit fall was several weeks
ago. Dipterocarp flowering started in late Sept 2018. I¡¯ll post more
details when I know them.

Best,

Cam
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