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Creative Commons License
This work is licensed under a Creative Commons License.

Author/Editor: N. Sivasothi,
a.k.a. Otterman,
Raffles Museum of Biodiversity Research, Department of Biological Sciences, National University of Singapore. Since 1998 with origins from OneList.


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Wed 21 Oct 2009

Mammal sightings in Singapore

Category : nature

Animal sighting records have always been an important resource - over time, these can contribute to public awareness and education, suggest student research projects and supplement research in conservation and management projects.

So any mammal record on land, sea and air is useful and large marine animals too - this includes turtles and interesting fish!  

Just fill in the form at
http://mammal.sivasothi.com/

We would love to receive photos, of course, please send them to: mammal@sivasothi.com

This data will be shared with other vertebrate researchers and managers in Singapore. Highlights may be featured on Habitatnews from time to time (if the records are not confidential), e.g. http://tinyurl.com/habitatnews-mammal

Your contribution is greatly appreciated, thank you!

N. Sivasothi & Xu Weiting
Systematics & Ecology Lab.
Department of Biological Sciences,
National University of Singapore
http://mammal.sivasothi.com/

Posted at 5:16PM SGT by N. Sivasothi | permalink | , .

Wed 05 Aug 2009

Summary of Natural History, Heritage and Map exhibitions

Category : events

"Two Minds, One Theory, An Exhibition"
- Wallace & Darwin, the two faces of the theory of evolution
1st - 31st Aug 2009: 9am - 6pm

By the Singapore Botanic Gardens
Venu: Botany Centre (Acess by Tanglin Gate at the Hollad Road/Napier Road junction).
This exhibition highlights the lesser known 'father' of the Theory of Evolution, Alfred Russell Wallace as well as Charles Darwin and explains the theory in an understandable way.
Free entry; more details in Habitatnews.

Hunters and Collectors: The Origins of the Southeast Asian Collection
25 Jul 2009 - 21 Sep 2009

Special Exhibitions Gallery, Asian Civillisations Museum Empress Place [Map]
This exhibition explores the stories of six people who ‘hunted’ and collected some of the artefacts found in ACM’s Southeast Asia collection today. Much of their collections found their way to Singapore’s first museum - the Raffles Library and Museum and specimens from the present day Rafles Museum have been brought back to recreate the cabinet of curisoty effects of days long past!
ACM entrance fee applies. Free for NUS students (school membership); more details in Habitatnews.

Vignettes in Time: Singapore Maps and History through the Centuries
1st August – 31st October 2009

Organised by National Library Singapore and the Singapore Heritage Society.
Venue: Level 10, Exhibition Area, National Library Building
This exhibition depicts Singapore as seen through cartographers, geologists, mariners, military generals and town planners, beginning with the arrival of the British and merchants from the nascent East India Company, to military strategists of Imperial Japan and postwar city planners. With over 120 maps on display, this is the single largest showcase of maps in Singapore.
Free entry.

"I Polunin"
8th Aug - 22nd Nov 2009

An NUS Museums Exhibition
URL: http://www.nus.edu.sg/museum/exhibitions_polunin.html
Venue: University Cultural Centre, 50 Kent Ridge Crescent, National University of Singapore Map]
Ivan Polunin arrived in Singapore in 1948 and taught Social Medicine and Public Health at the then University of Malaya. Initially a documentation on film of tropical diseases, Polunin’s ethnographies grew to encompass hundreds of hours of film footage on Malaya’s sociocultural practices and its rich biodiversity. "I, Polunin" presents rarely seen photographs, slides and film footage selected from the personal archives of Dr. Ivan Polunin of everyday life in Singapore and Malaya in the 1950s and 1970s.
Free entry.

For all this and more, see WildSingapore Happenings.

Posted at 10:16AM SGT by N. Sivasothi | permalink | , .

Mon 27 Jul 2009

Exhibition of Singapore Maps @ NLB, 01 Aug - 31 Oct 2009

Category : heritage

Vignettes in Time: Singapore Maps and History through the Centuries

1st August - 31st October 2009, Level 10, Exhibition Area, National Library Building

"This exhibition depicts Singapore as seen through cartographers, geologists, mariners, military generals and town planners. Beginning with the arrival of the British and merchants from the nascent East India Company, to military strategists of Imperial Japan and postwar city planners, Vignettes in Time provides snippets of little-known histories.

Displayed for the first time are many never-before-seen maps from the collections of National Library Singapore and Lim Shao Bin. With over 120 maps on display, this is the single largest showcase of maps in Singapore. Come explore a little-known Singapore through vignettes of the past. This exhibition is curated by Lim Chen Sian. "

Organisers: National Library Singapore & Singapore Heritage Society

Source: NLB

Posted at 10:57AM SGT by N. Sivasothi | permalink | , .

Fri 29 May 2009

300 entangled horseshoe crabs rescued at Mandai Besar mangrove

Category : marine

Carcinoscorpius rotundicauda is one of four species of horseshoe crabs in the world. It is found in the inshore waters of the Indo-West Pacific and associated with the mangrove-mudflat ecosystem. In Singapore waters, from eyewitness accounts alone, their numbers have depleted significantly since the 80's. This is not unexpected given the massive quantity of habitat loss and increased pollution over the past three decades along the Johor Straits.

They still are found in the mangrove-mudflats of north-western Singapore, off the Johor Straits. However, nearshore fishing is unregulated, and Mandai mangrove and mudflats are not provided with any special protection by the law. It's fate appears to be undecided as yet. Meanwhile something else threatens its ancient denizen.


Telsons poking out of the net give an indication of the number of trapped animals in this section of a long net

Frequently over the past decades, monofilament gill nets have been left behind over several tidal cycles in several mangrove patches in north-west Singapore. These poorly frequented areas without popular access are commonly only visited only by recreational fishermen and researchers. Fishermen normally harvest fish caught in a gill net after a single tidal cycle as the dead fish would rot very quickly. However, many nets I have encountered are unattended for days and are regarded as "ghost nets". Entangled fish will die once exposed but arthropod mangrove residents, can survive trapped in the net for several tidal cycles. Eventually it is the heat of the sun during the exposed low tide or starvation that kills them.

skitched-20090529-183140.jpgIn several instances, I have found entire lengths of "ghost nets" with the still-trapped carcasses of animals in an advanced state of decay. In other instances, I have been fortunate enough to detect them early enough to release the living indiviudals. A few of such instances are featured in Habitatnews over the years, e.g. in March 2005 and July 2008. Members of the Nature Society Singapore Horseshoe crab research and rescue team scour Kranji mangroves on a quarterly basis to release trapped individuals as well [link].

Given the reduced population size of these Xiphosurans ("sword tail"), the the impact of indiscriminate capture by gill nets has been heightened and it tragic to see the senseless slaughter of these animals, mirroring the larger-scale problem in the world's oceans.

Two nights ago (27 May 2009) I chanced upon a gill net and the sound of horseshoe crabs struggling to be free at about 11pm. My labmates from Ecolab and myself had been in the area for about four hours and were leaving as the tide rose. Regretfully, we left behind the trapped horseshoe crabs.

I reassured myself that the incoming tide would keep them relatively safe, even if they could not bury themselves.

The next morning I returned alone to release the animals, thinking it would be a one or two hour job as was usually the case. Instead I discovered I had badly miscalculated the numbers trapped in the darkness of the previous night. And I had come directly without help or breakfast! But it was getting hot so I decided I'd best just work as fast as I could.


Mandai Besar mangrove, 27 May 2009

In the end it took five hours (8.45am - 1.45pm) to remove some 300 mangrove xiphosurans from a 100 metre gill net. They were in relatively good condition, being able to struggle reasonably vigorously. There was no mortality except for predator attack (possibly heron) on a two mature gravid females. Otherwise the other females were not full of eggs.

I cut the net into several sections and dragged them into different lengths of a stream through some thigh-deep mud. I turned the thick bundles over every couple of hours (or when I thought the carapace looked alittle too dry) to ensure that all the individuals were kept wet. Thankfully there were intermitted clouds that reduced that stress on the animals. I cut out an individual at a time, removing the entangled net with the help of a pair of scissors.

I tried to keep the cuts to a minimum to reduce littering the mud with short lines. By first removing the main tense filaments restricting the animal, the scissors was then used like a pair of forceps to pull loose any line entangled amongst its segmented legs. This often required cuts at either ends to remove knots before pulling a line free with the scissor tip - it helped that I was using a narrow-point scissors with a slightly dulled blade tip.

I had to be careful not to cut and injure a grasping leg or a telson - the latter looks like a twig so I kept saying to myself, "there are no twigs"! So the release was a very deliberate exercise and it was important to be vigilant while working quickly. Sand grains and the filaments were wearing into my skin and I was thankful the water was brackish and not salty.

skitched-20090529-185033.jpg

As each animal was cleared of all filament, it was released away from the net to prevent re-entanglement - horseshoe crabs can move away quite fast in precisely the wrong direction sometimes! I bundled the net fragments away from the stream for collection later. Thunder crabs and forceps crabs were set aside as they require a much finer pair of scissors and would take too much time. Those I would bring back to the Systematics & Ecology lab at NUS for release and return later.

It was hot and I ran out of water but that spurred me to work faster before these creatures dried up. By creating sections, I turned a large job into a series of smaller jobs to encourage myself with intermediate success. By 10.30am (1 hour 45 minutes) I estimated that I had released over a hundred horseshoe crabs. By then I was sitting in the mud and pretty much covered with it as bending over and even squatting was too tiring.

As the tide rose, I went back to turn over individuals that had returned to a belly up position. I was encouraged when I saw some crawl off but did not examine them. As they were submerged, I cleared the cut nets and stuffed them into large plastic bags I found amongst the trash on the forest floor. Rain threatened but did not come, unfortunately. Eventually, the last individual was released about five hours after I had first started.

I dreamt of them later and woke up in the middle of the night hoping they were all okay.

Until the next ghost net appears.

Photos on Flickr

Posted at 6:50PM SGT by N. Sivasothi | permalink | , .

Fri 22 May 2009

Envirofest 2009 and the handing over of The Blue Plan

Category : events

Sat 23 & Sun 24 May 2009 - Envirofest @ Toa Payoh Hub from 11am to 8pm will include the handing over of The Blue Plan, a proposal by civil society for an integrated and balanced conservation of Singapore’s Marine Heritage, to Minister Yaacob, the Guest of Honour at the official opening ceremony on Saturday 23rd May 2009 at 3.00pm. Everyone is welcome.

Envirofest is an annual celebration to share information about Singapore's biodiversity and environment with the public at large. Guiding and activities at the exhibition will be conducted from 11am to 8pm on Saturday 23rd and Sunday 24th May at the HDB Hub, Toa Payoh (above the MRT). Raffles Museum Toddycats will be down in force over the two days and about 40 of us will turn up for various shifts over the two days.

At 3.00pm on Saturday, 23rd May 2009, Envirofest will be declared open by the Guest of Honour, Minister for the Environment and Water Resources (MEWR), Dr Yaacob Ibrahim. Shortly after, the finalised version of the Blue Plan (which has been circulating for public comment) will be handed over to the Minister for the government's consideration. The Minister is also co-chair of the Inter-Ministerial Committee for Sustainable Development (IMCSD).

This will mark the final act of the International Year of the Reef Singapore.

skitched-20090522-011739.jpg

skitched-20090522-011841.jpg

Entry is free and amidst the hustle and bustle of Toa Payoh Hub, friendly guides are on hand to escort and engage visitors to Envirofest around the arena as well at each exhibit. Free tickets and sign-ups for nature events around Singapore will be offered. 

Envirofest is a happy collaboration between groups from the non-governmental community, government agencies, businesses and schools. This is also a good opportunity to learn about and from various biodiversity groups in Singapore who will be manning booths and introducing Singapore fauna and flora to the public with the use of specimens from the Raffles Museum, games and guiding. Throughout the day, you will be able to interact with passionate volunteers manning the various booths. This year the biodiversity guides will pepper a trail of ecosystems from terrestrial to mangrove to marine.

Find out more at: envirofest.wordpress.com.

skitched-20090522-011938.jpg

Posted at 1:30AM SGT by N. Sivasothi | permalink | , .

Thu 23 Apr 2009

The Draft Blue Plan - released for public feedback

Category : marine

IYOR 2008 has released the Draft Blue Plan today. [Click to download]

"The Draft Blue Plan is a proposal to the Government and people of Singapore from the members and organizations that form “International Year of the Reef (IYOR) 2008 Singapore” – interested members of civil society concerned about the conservation and management of Singapore’s coral reef heritage. Contributions and advice from the leading marine biologists in Singapore have been incorporated. It was released on 23 April 2009. Members of the Public can download a copy of the Draft Blue Plan here.

Comments and suggestions from members of public are invited. You may email us at blueplan.singapore@gmail.com before the closing date, 14 May 2009. The Blue Plan will presented to the Government with the collated and edited comments in late May 2009.

Please note that blueplan.singapore@gmail.com receives emails only. While we will give every opinion/comment due consideration, due to human resource constraints, we are unable to respond to queries and may not be able to include every comment into the final Blue Plan due to editorial considerations. Please contact the Marine Conservation Organisations Listed in Annexes B & C of the Draft Blue Plan if you are keen to find out more about the wide range of activites and programmes that are being organised. We apologize for this inconvenience."

IYOR2008 - Draft Blue Plan (23 April 2009)

Posted at 2:32PM SGT by N. Sivasothi | permalink | , .

Mon 02 Mar 2009

Sat 07 Mar 2009: 4pm - Peter Ng on "Life as a Sanctioned Professional Killer"

Category : talks

"Life as a Sanctioned Professional Killer"
by Professor Peter Ng

In conjunction with NUS Faculty of Science's 80th anniversary celebrations

Saturday 7th March 2009: 4pm – 5pm
Venue: LT 31 NUS Faculty of Science (next to Science Canteen)
All are welcome; admission is free

How to get there:

  • Take SBS Bus 95 from Buona Vista MRT station.
  • Drop off at the second stop after the bus turns in to NUH/NUS.
  • See map: http://tinyurl.com/nuslt31

Registration required
Please click here to sign up

Abstract - "In the field of biodiversity science, the killing and preservation of animal specimens for research is an integral part of the discipline. This is all the more so in systematics, which is my forte. In the 25 years I have been in this field, thousands of crustaceans, fish and other animals have been killed in the name of 'science', and as a university professor, I have given my blessings to dozens of students and colleagues to kill even more.

Does that make me a mass murderer? And what has this killing achieved in my discipline? How does this scale of scientific killing correlate with the so called ‘biodiversity crisis' facing the planet in which thousands of species are under threat of extinction? If a biologist's desire is to conserve how we rationalize with this need to kill? In a wide ranging talk, these seemingly conflicting aspects will be discussed and hopefully, clarified."

About the speaker - Prof Peter Ng worked on his PhD at the National University of Singapore part-time while still an education officer with the Ministry of Education in the 1980s. He joined the then Department of Zoology in 1990, and has been involved in biodiversity and systematics research, primarily with crabs and fish over the last 17 years.

Recognised as a international taxonomic expert on these groups, he also works on a wide variety of different biodiversity issues and has become deeply involved in environmental and conservation biology. He is widely published and on the editorial board of over a dozen international journals and a member of numerous international biological organizations. Notably he is a Commissioner with the International Commission for Zoological Nomenclature. He is currently director of both the Raffles Museum of Biodiversity Research and the Tropical Marine Science Institute at NUS.

Posted at 10:37AM SGT by N. Sivasothi | permalink | , .

Sat 16 Aug 2008

International Coastal Cleanup Singapore 2008: Site and Participant Status

Category : marine

The Raffles Museum Toddycats who coordinate the International Coastal Cleanup Singapore (ICCS) met last night over Old Chang Kee curry puffs and a couple of pizzas in NUS. The Zone Captains, Data Manager and a few others sorted through the information, requests, email conversations and reallocations that have been pouring in since May in order to update the status of the organisations and sites that will be the scene of activity on the morning of 20th September 2008.

It won't just be volunteers in Singapore that hit the shores that day, volunteers in countries around the world will be taking to the beach as well, in order to data for a global perspective about marine trash.

At this stage, beach and mangrove recces have started - these are being conducted by Zone and Site Captains and also for new organisers at various beach and mangrove sites in preparation for the actual day. A briefing for Site Buddies who help supervise operations will be conducted on 13th September 2008.

More news uupdates will be posted to the ICCS blog at coastalcleanup.wordpress.com.

Posted at 11:42AM SGT by N. Sivasothi | permalink | , .

Sat 16 Aug 2008

IYOR 2008 Keynote: LM Chou envisions a marine paradise in Singapore

Category : marine

skitched-20080816-092044.jpgIYOR2008 Launch - talks, photos and reports

Since the launch of the International Year of the Reef (IYOR) in Singapore last Saturday, the IYOR webpage has been festooned with photos, videos of the talks and reports of the various events.

Report and video of the IYOR Keynote

Figuring prominently in The Straits Times today is Shobana Kesava's coverage of the keynote address by Professor Chou Loke Ming in which he talked, surprisingly to some, about envisioning a coral paradise. [Hope for coral reefs here,” by Shobana Kesava. The Straits Times, 16 Aug 2008. Just one species gone; concerted effort can reverse extinction trends.]

Despite the 60% loss and expected continued loss of another 15% of coral reefs to current coastal development, there is some hope:

"Professor Chou Loke Ming, a marine biologist with the National University of Singapore (NUS) said a concerted effort made now by the Government, business sector and those in civil society can reverse current trends towards extinction.

Speaking last Saturday at the second International Year of the Reef (IYOR200 8) event, the pioneer conservationist said that to make this happen, ‘development agencies must treat reef protection as a real exercise and not just for public relations, and draw up improvement plans at the same time as their development plans’.

Before the latest study by NUS, scientists had thought at least 50 species had been lost to development work.

Prof Chou envisions a marine paradise by 2018, with many large young thriving reefs lining Singapore’s shores. He noted that restoration efforts had begun over the last decade. "


Prof Chou speaking at IYOR Singapore, 8th August 2008

Read more at The Straits Times .

You can watch the video of that hopeful talk at the IYOR webpage courtesy of Dinesh N. and Ria Tan: "Keynote address by Prof Chou Loke Ming at IYOR Launch 8 Aug 08."

Singapore Celebrates our Reefs!

Posted at 9:25AM SGT by N. Sivasothi | permalink | , .

Fri 08 Aug 2008

Dolphin carcass on Labrador beach

Category : marine

Thursday 07 Aug 2008 - I got a call from Eslindah Ismail from NParks Labrador who told me another carcass had been washed shore on Labrador Beach, in front of the rocky shore. Like the last carcass that was washed ashore there on 15 June 2005, this body appears to be that of an Indo-Pacific humpbacked dolphin (Sousa chinensis).

The body was in quite a decomposed state so I ran the photos past Kelvin Lim at the Raffles Museum for a second opinion. He offered, "from the slender beak and the pale, pinkish colour (assuming that that is close to the original colour), this seems likely to be the Indo-Pacific Humpback Dolphin, the most frequently seen of the cetaceans in Singapore waters."

The carcass was buried yesterday and I will go down (with some help) in a few weeks time to recover the bones to deposit the specimen in the Raffles Museum of Biodiversity Research.

For other reports of dolphns, see reports in Habitatnews.

Posted at 12:34PM SGT by N. Sivasothi | permalink | , .

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