Bloggang.com : neakna : រុក្ខជាតិស៊ីសត្វ ตนไม้กินแมลง

រុក្ខជាតិស៊ីសត្វ ตนไม้กินแมลง

អង្គការអន្តរជាតិការពាររុក្ខជាតិ និងសត្វ Fauna & Flora International បានប្រកាសនៅថ្ងៃច័ន្ទ ទី១៥ ខែវិច្ឆិកានេះថា គេទើបនឹងបានរកឃើញពពួករុក្ខជាតិប្រភេទថ្មីមួយនៅលើជួរភ្នំក្រវាញ ដែលអាចចាប់សត្វស៊ីជាអាហារបាន។
អំបូររុក្ខជាតិនេះត្រូវបានគេឲ្យឈ្មោះជាភាសាបរទេសថា ណាប៉េនទេស ហូលដិននី (Napenthes Holdenii) តាមឈ្មោះរបស់ជាងថតរូបម្នាក់ ដែលបានឃើញរុក្ខជាតិនេះមុនគេនៅឆ្នាំ១៩៩៦។
សេចក្ដីប្រកាសព័ត៌មានរបស់អង្គការអន្តរជាតិការពាររុក្ខជាតិ និងសត្វ Fauna & Flora International បានឲ្យដឹងថា ការរកឃើញនេះបញ្ជាក់ថា អាចនៅមានរុក្ខជាតិចម្រុះច្រើនប្រភេទនៅលើភ្នំនេះ ដែលគេនៅមិនទាន់បានធ្វើការសិក្សាស្រាវជ្រាវ។
រុក្ខជាតិដែលគេទើបរកឃើញនេះ មានស្លឹកវែងពណ៌ក្រហមលាយបៃតង មានសណ្ឋានដូចថូផ្កា ដែលអាចត្រងចាប់សត្វល្អិត និងកិនកម្ទេចធ្វើជាអាហារបាន។ ស្លឹករុក្ខជាតិនេះអាចមានប្រវែងដល់ទៅ ៣០សង្ទីម៉ែត្រ៕
ប្រភព៖ //www.rfa.org/khmer/indepth/carnivorous_plant_discovered_in_cam-11152010223325.html

New species of carnivorous plant discovered in Cambodia

A new species of carnivorous pitcher plant has been found by Fauna & Flora International (FFI) in Cambodia’s remote Cardamom Mountains.
The discovery of Nepenthes holdenii is an indicator of both the stunning diversity and lack of research in the forests of the Cardamom Mountains.
The large red and green pitchers that characterize Nepenthes holdenii are actually modified leaves designed to capture and digest insects. The pitchers can reach up to 30 cm long. The carnivorous strategy allows the plants to gain additional nutrients and flourish in otherwise impoverished soils.
A further unusual adaptation seen in this new species is its ability to cope with fire and extended periods of drought. Cambodia’s dry season causes forests to desiccate and forest fires are common.
Nepenthes holdenii exploits the clearings caused by these regular blazes by producing a large underground tuber which sends up a new pitcher-bearing vine after the fires have passed.
British photographer Jeremy Holden, who first found the plant on the FFI survey and after whom it is named, said: ‘The Cardamom Mountains are a treasure chest of new species, but it was a surprise to find something as exciting and charismatic as an unknown pitcher plant’.
This discovery is the latest in a series of new species described from the Cardamom Mountains, including a green-blooded frog and a number of new reptiles.
Jenny Daltry, FFI Senior Conservation Biologist said: ‘The flora of Cambodia is still poorly known and potentially holds many new species for researchers to discover’.

Source: //www.fauna-flora.org/news/new-species-of-carnivorous-plant-discovered-in-cambodia/

Create Date : 16 พฤศจิกายน 2553

Last Update : 16 พฤศจิกายน 2553 13:20:01 น.

0 comments

Counter : 972 Pageviews.