Muehlenbeckia Rough Ssp. скрытый
| Отдаленный колючий лигновый | |
|---|---|
Научная классификация 
| |
| Королевство: | Plantae |
| Клада : | Трахеофиты |
| Клада : | Покрытосеменные |
| Клада : | Eudicots |
| Заказ: | Caryophylles |
| Семья: | Polygonaceae |
| Род: | Мюленбецкий |
| Разновидность: | |
| Подвиды: | М. Х. подпрокат скрытый
|
| Триномиальное название | |
| Muehlenbeckia horrida subsp. abdita | |
Muehlenbeckia Rough Ssp. Скрытый (син. Duma Rough Ssp. Скрыт [ 3 ] ) Обычно известный как отдаленный колючий лигн , является критически под угрозой исчезновения кустарника, эндемичного для Западной Австралии .
Описание
[ редактировать ]Это вертикальный, распространяющийся, безлистный кустарник, который вырос до высоты от 60 до 120 сантиметров. У него яркие, светлые желтые кластеры цветов.
Подвид был описан в 1996 году Карен Уилсон . [ 2 ] [ 4 ]
Распределение и среда обитания
[ редактировать ]Muehlenbcckia horrida subsp. Абдита известна из двух популяций в рамках водно-болотного угодья озера Брид-Восточный озеро Брид , в западном, но субрегионе региона Малли в юго-западной ботанической провинции Западной Австралии.
Он растет в ослабленном иле и песке, на кроватях озера Брайд и Ист -Лейк Брайд. Это зависит от его выживания от регулярного цикла пресноводных затоплений с последующим сушкой ложа озера.
Conservation
[edit]Populations of M. h. subsp. abdita have declined severely in the last thirty years, mainly because of increasing salinity. Salinity loads in the Lakes were measured at around 160 tonnes in 1985, but had increased to around 1200 tonnes in 2005. This increase is attributable to a rising water table caused by widespread clearing for agriculture. Other threats include interruption of the flooding/drying regime because of altered hydrology; and recreational activities such as water skiing. It is estimated that there are about 2000 plants left. There was previously a third population, but these were all dead in 2002, and the population is thought to be unrecoverable.[5]
It is listed as "critically endangered" under Australia's Environment Protection and Biodiversity Conservation Act 1999,[1] and as "Rare" under Western Australia's Wildlife Conservation Act 1950.[6] The whole lake bed ecosystem has been classified as a critically endangered threatened ecological community under the name Bryde.[7]
References
[edit]- ^ Jump up to: a b "Muehlenbeckia horrida subsp. abdita: Remote Thorny Lignum". Species Profile and Threats Database. Department of the Environment and Heritage. Retrieved 2007-02-23.
- ^ Jump up to: a b "Muehlenbeckia horrida subsp. abdita". Australian Plant Name Index, IBIS database. Centre for Plant Biodiversity Research, Australian Government.
- ^ "Muehlenbeckia horrida subsp. abdita". FloraBase. Western Australian Government Department of Biodiversity, Conservation and Attractions.
- ^ K L Wilson (1996). "A new subspecies in Muehlenbeckia horrida (Polygonaceae) from Western Australia". Nuytsia. 11 (1): 136, Fig. 1E, F, 2. doi:10.58828/NUY00257. ISSN 0085-4417. Wikidata Q100729942.
- ^ "Advice to the Minister for the Environment and Heritage from the Threatened Species Scientific Committee (the Committee) on Amendments to the list of Threatened Species under the Environment Protection and Biodiversity Conservation Act 1999 (EPBC Act)" (PDF). Retrieved 2007-02-23.
- ^ "Muehlenbeckia horrida subsp. abdita". FloraBase. Western Australian Government Department of Biodiversity, Conservation and Attractions.
- ^ "List of Threatened Ecological Communities (endorsed January 2004)". Retrieved 2007-02-23.
External links
[edit]- "Muehlenbeckia horrida subsp. abdita". FloraBase. Western Australian Government Department of Biodiversity, Conservation and Attractions.
