habitatnews
Natural history news for the busy Singaporean
- highlighting talks, books, events and issues, in nature, biology and the environment.



Home - NUS - RMBR

Subscribe for the 'day after' email summary!

Mammal Records
Click to submit

Fauna & Flora Records
Click to submit



International Year of Biodiversity 2010


Click to find out more

Affiliation

The Biodiversity Crew
biodiversity research
@ the Department of Biological Sciences, NUS

Raffles Museum Toddycats

Categories
* News
* Parliament
* Terrestrial & Freshwater
* Marine
* Coastal Cleanup
* Environment
* Heritage
* Animal welfare
* Wildlife trade

* Events & Activities
* Talks & Seminars
* TV & Radio
* Books

* Articles - Photos
* Internet - Software
* Archives (2000-2003)
* Archives (2004-)
* About - Errata

Subscribe to the
monthly newsletter
Links

Events in Singapore

What's On

News
* Raffles Museum News
* NUS Biodiversity
* WildSingapore News
* EcoNews (regional)

Newsletters
* Habitatnews
* Ecotax

Mailing Lists
* Nature Singapore
* Singapore Heritage

Weblogs
By Habitatnews

* Pulau Ubin Stories
* Labrador Park
* The Biology Refugia
* Otterman speaks
* Cycling in Singapore

By others
* Wild Shores of Singapore*WS*
* Pulau Hantu Blog
* Bird Ecology*NSS*
* Wild Lives(NDP2004)*WS*
* More...

Webpages

Marine
* Marine Life here?
* Pulau Hantu Blog
* Southern Shores*WS*
* Mandai Mangroves * Chek Jawa, Pulau Ubin

Heritage
* Changi Heritage
* Kent Ridge Heritage
* Sembawang Heritage
* Pulau Ubin stories

Ecosystems
* Mangroves of Singapore
* Coral Reefs of Singapore

Strategies and Plans
* Sustainable Development Blueprint
* NBSAP
* IYOR Blue Plan

Feedback


For general feedback about policies: go to REACH

Sembawang Tides:
Today, 2009 (iCal available)
Weather (NEA)

Local Groups/Sites

About

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.


Made on a Mac with
Claris Home Page 3.0.
Blog engine: Samizdat,
based on PHPosxom,
based on Blosxom.

What is a weblog?
Start your own.

Get Firefox!

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

Archives - Nature Links - Submit Mammal Records - Blog RSS Feed - Comments RSS - Email me

News about nature and the environment in Singapore - Archives

List of Categories : animalwelfare * heritage * marine * cycling * research * coastalcleanup * envt * news * world * cameratraps * articles * photos * jobs * parliament * software * malaysia * errata * tvradio * books * events * about * nature * stamps * map * trade * internet * conceptplan * talks * education *

Fri 25 Feb 2005

The last endemic

Category : nature

After perusing through the Garden's Bulletin, Adrian Loo writes,

"In 1900, Ridley listed 33 endemic plants in Singapore. He predicted that some eventually lose this status as more botanising revealed their presence beyond this island. [An endemic plant is a plant that occurs naturally in one place and nowhere else.]

Singapore's flora shares some affinity with the flora of southern Johore and the northern flora of Borneo. And indeed as those regional floras were better studied, only one species from that 1900 list of 33 proved to be endemic.

However, later on, Ridley himself, Holttum and few others revived the list of endemics with some of the new species that they described from Singapore. Up to recently, the "revived" list of endemics was 19 species.

Recently, Kiew & Turner (2003) scrutinised the list and report that only seven eventually proved to be endemic as knowledge of regional floras improved. The rest had their distributions widened to Peninsular Malaysia.

The seven endemic plants of Singapore

  • extinct Bolbitis xsingaporeansis (fern)
  • extinct Flickingeria laciniosa (epiphyte)
  • extinct Spatholobus ridleyi (climber)
  • extinct Strychnos ridleyi (climber)
  • extinct Thunbergia dasychlamys (climber)
  • extinct Tectaria griffithii var. singaporeana (fern)
  • endangered Cryptocoryne xtimahensis (aquatic)

Sadly, of this seven, only one, an aquatic aroid recently described from Bukit Timah in 2001, is extant - Cryptocoryne xtimahensis Bastmeijer.

Even then, its long term status as an endemic is tenuous as the putative parents are also found in Southern Peninsular Malaysia; Cryptocoryne are known to hybridise readily. On top of that, it is also a very vulnerable species, growing in two adjacent small pools along just one stream."

Source: Ruth Kiew & Ian Mark Turner, 2003. Are any plants endemic to Singapore? The Gardens' Bulletin, 55(2): 173-184.

Reference: Bastmeijer, J.D. & R. Kiew, 2001. A new Cryptocoryne hybrid (Araceae) from the Bukit Timah Nature Reserve. The Gardens Bulletin, 53: 9-17.

Posted at 5:36AM UTC by N. Sivasothi | permalink | email | Raffles Museum news