Ira Lalaro
| Ira Lalaro | ||
|---|---|---|
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| The Ira Lalaro | ||
| Geographical location | Lautém municipality , East Timor | |
| Drain | Irasiquero | |
| Location close to the shore | Malahara , Poros , Mehara , Muapitine | |
| Data | ||
| Coordinates | 8 ° 27 ′ 0 ″ S , 127 ° 8 ′ 0 ″ E | |
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| Altitude above sea level | 318 m | |
| surface | 10-55 km² | |
| length | 6.5 km | |
| width | 3 km | |
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particularities |
Largest lake in East Timor |
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The Ira Lalaro (also Lagoa Ira Lalaro , Iralalara , Iralalaru or Suro-bec ) in the municipality of Lautém is the largest lake in the state of East Timor and the island of Timor . It is located 318 m above sea level on the Fuiloro Plateau , the largest plateau in East Timor, which forms a polje .
geography
The center of the Ira Lalaros is located in the sucos Mehara and Muapitine . Its size fluctuates greatly over the course of the year. In the dry season (May to October) it shrinks to up to 10 km², while in the rainy season it reaches an area of up to 55 km² and extends into the neighboring Sucos Bauro and Muapitine. Its catchment area has an area of 406 km². There are swamps on its banks.
In Agua Nova (Irakusalu / Iramiri, 8 ° 27 ' S , 127 ° 10' O ), on the east bank, the country is regularly flooded. In February the water is up to half a meter high. Forests of Nauclea orientalis and Morinda grow here . Further north, the direction of the place Mehara which is Moto sump ( 8 ° 25 ' S , 127 ° 9' O ). In this flooded area, the water of the lake is up to one meter high in the Nauclea orientalis forests in February . South of Agua Nova is Maupiti ( 8 ° 28 ′ S , 127 ° 10 ′ E ). The landscape here is similar, but the forests are barren.
The Irasiquero ( Irasiquiru ) flows south from the Ira Lalaro until it disappears in the Mainina Loch in front of the Paitchau mountain range . This ponor is a holy place for the local people. In the surrounding karst landscape there are caves, poljes and sinkholes .
The closest settlement, near the south shore of the lake, is Malahara ; in the northeast is the place Poros .
In February, water temperatures between 26.4 ° C and 32.2 ° C were measured in the lake.
fauna
| Trigger species in the Important Bird Area Paitchau and Ira Lalaro | |
|---|---|
| Bird species | information |
| Great cuckoo pigeon ( Macropygia magna ) | not endangered |
| Timor pigeon ( Turacoena modesta ) | potentially endangered |
| Green Timor Pigeon ( Treron psittaceus ) | endangered |
| Pink-headed fruit pigeon ( Ducula rosacea ) | potentially endangered |
| Yellow-cheeked Cockatoo ( Cacatua sulphurea ) | threatened with extinction |
| Timor Parakeet ( Aprosmictus jonquillaceus ) | potentially endangered |
| Timorliest ( Todiramphus australasia ) | potentially endangered |
| Temminck honey eater ( Meliphaga reticulata ) | not endangered |
| Timor leather head ( Philemon inornatus ) | not endangered |
| Timor Honeyeater ( Lichmera flavicans ) | not endangered |
| Tricolor honeyeater ( Myzomela vulnerata ) | not endangered |
| Timorgerygone ( Gerygone inornata ) | not endangered |
| Orpheus thick head ( Pachycephala orpheus ) | not endangered |
| Fig pyrole ( Sphecotheres viridis ) | not endangered |
| Sundapirol ( Oriolus melanotis ) | not endangered |
| Timorese tail ( Urosphena subulata ) | not endangered |
| Timor Warrior ( Phylloscopus presbytes ) | not endangered |
| Spotted-breast- eyed bird ( Heleia muelleri ) | potentially endangered |
| Timor Thrush ( Zoothera peronii ) | potentially endangered |
| Timor wheatear ( Saxicola gutturalis ) | potentially endangered |
| Chest-band groundcatcher ( Ficedula timorensis ) | potentially endangered |
| Hyacinth flycatcher ( Cyornis hyacinthinus ) | not endangered |
| Macklot mistletoe ( Dicaeum maugei ) | not endangered |
| Sun nectar bird ( Cinnyris solaris ) | not endangered |
| Blue-green parrot finch ( Erythrura tricolor ) | not endangered |
In 2007 the Timor tortoise, a subspecies of the McCord's snake- necked tortoise ( Chelodina mccordi ), which was previously only known from the island of Roti , was described for the first time . About three hundred saltwater crocodiles live in the lake , isolated from the sea and thus from other populations that are not hunted by the population because they are considered sacred according to the Timorese creation myth . With increasing human activities on and in the lake, crocodile attacks are becoming more common. There are also various other reptiles such as the island pit viper ( Trimeresurus insularis ). A total of 21 different fish species live in the lake. The great diversity of invertebrates is striking . 57 families were counted in the Ira Lalaro and Irasiquero. While you can find amphipods and woodlice in the river, decapods are absent in both waters . The reason could be the lack of an open connection to the sea.
The Ira Lalaro, together with the Paitchaus mountain range to the south , belongs to an Important Bird Area and is part of the Nino Konis Santana National Park . Endangered species such as the yellow-cheeked cockatoo ( Cacatua sulphurea ), the green timor pigeon ( Treron psittaceus ) or the slate- backed fruit pigeon ( Ducula cineracea ) can be found here. Over 50 species of water birds have been identified on the lake, making it the most important freshwater habitat in the entire Lesser Sunda Islands . A research group counted 16 different bat species in the region, eleven of which are cave dwellers. The most common were the Geoffroys fruit bat ( Rousettus amplexicaudatus ) and the Canuts horseshoe bat ( Rhinolophus canuti ).
Others
There is a traditional owner of the lake. The current (2014) owner of this inherited title is Vicente Araújo .
It is traditionally forbidden in the region to bring things that have come into contact with the sea into freshwater waters. The taboo also applies to boats and nets, for example.
A hydroelectric power plant planned shortly after independence, in which a 4558 m long tunnel was to divert the water of the Ira Lalaro below the Paitchau massif 318 meters down into the Timor Sea , was not implemented after years of planning.
Web links
- Photo of the Ira Lalaro and the Monte Paitchau mountain
- Important Bird Areas in Timor-Leste (PDF file; 1.87 MB)
Individual evidence
- ^ University of Coimbra, Portugal: East Timor - The geomorfology ( Memento of December 9, 2007 in the Internet Archive )
- ↑ a b c d Report of Findings on the Proposed Iralalaro Hydro-ElectricPower Scheme, Timor-Leste (PDF; 3.2 MB) Haburas Foundation and the Australian Conservation Foundation. Retrieved August 9, 2013.
- ↑ a b Eisemberg, CC Costa, BG Guterres, EC Reynolds, SJ & Christian, K .: Notes on Chelodina mccorditimorensis Biology, Harvest, Current Threats, andCommunity Perceptions in the Lake Iralalaro Region, Timor-Leste , Chelonioan Conservation and Biology, 2016 , 15 (1): 69-78.
- ↑ Hydrotimor: Iralalaru - Iralalaru Water Flow ( Memento from January 10, 2011 in the Internet Archive ) (English)
- ↑ UNMIT: Timor-Leste District Atlas version 02, August 2008 ( Memento from December 3, 2011 in the Internet Archive ) (PDF; 389 kB).
- ↑ a b Eisemberg, CC Costa, BG Guterres, EC Reynolds, SJ & Christian, K .: Assessment of Chelodina mccordi current status and community awareness along the Lake Iralalaro, Timor-Leste ( Memento from November 13, 2014 in the Internet Archive ) ( PDF) Report to the Mohamed bin Zayed Species Conservation Fund, Turtle Conservation Fund, and Andrew Sabin Family Foundation, by the Research Institute for the Environment and Livelihoods, Charles Darwin University, 2014 (English)
- ↑ a b Important Bird Area "Monte Paitchau"
- ↑ a b Gerald Kuchling, Anders GJ Rhodin, Bonggi R. Ibarrondo, Colin R. Trainor: A New Subspecies of the Snakeneck Turtle Chelodina mccordi from Timor-Leste (East Timor) (Testudines: Chelidae) . In: Chelonian Conservation and Biology 6 (2): pp. 213-222. 2007 doi : 10.2744 / 1071-8443 (2007) 6 [213: ANSOTS] 2.0.CO; 2 .
- ↑ Mark O'Shea et al. a .: Herpetological Diversity of Timor-Leste Updates and a Review of species distributions. (PDF) In: Asian Herpetological Research. 2015, 6 (2): pp. 73-131., Accessed on July 17, 2015.
- ↑ Hinrich Kaiser et al., PhD, Department of Biology, Victor Valley College: The herpetofauna of Timor-Leste: a first report.
- ↑ Birdlife International IBAs in Timor-Leste ( Memento from November 22, 2008 in the Internet Archive ) (PDF; 2.0 MB)
- ↑ Hydrotimor: Iralalaru ( Memento of July 3, 2012 in the Internet Archive )
- ^ The La'o Hamutuk Bulletin. Volume 5, Nos. 5-6: December 2004
- ↑ FRETILIN, June 1, 2007