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Eriocaulaceae
Eriocaulon L.
EOL Text
Found on thin, peaty, seasonally waterlogged soil in the cracks between blocks of basalt; a habitat known as 'basalt pavement' (3). Usually associated with the bladderwort Utricularia scandens, and grasses and sedges such as Loudetia simplex and Scleria interrupta, at altitudes of between 1,700 and 2,500 metres above sea level (3).
License | http://creativecommons.org/licenses/by-nc-sa/3.0/ |
Rights holder/Author | Copyright Wildscreen 2003-2008 |
Source | http://www.arkive.org/eriocaulon/eriocaulon-asteroides/ |
Red List Criteria
Version
Year Assessed
- Needs updating
Assessor/s
Reviewer/s
Contributor/s
License | http://creativecommons.org/licenses/by-nc-sa/3.0/ |
Rights holder/Author | International Union for Conservation of Nature and Natural Resources |
Source | http://www.iucnredlist.org/apps/redlist/details/39931 |
Classified as Vulnerable (VU - D2) on the IUCN Red List 2002 (1).
License | http://creativecommons.org/licenses/by-nc-sa/3.0/ |
Rights holder/Author | Copyright Wildscreen 2003-2008 |
Source | http://www.arkive.org/eriocaulon/eriocaulon-asteroides/ |
Major Threats
License | http://creativecommons.org/licenses/by-nc-sa/3.0/ |
Rights holder/Author | International Union for Conservation of Nature and Natural Resources |
Source | http://www.iucnredlist.org/apps/redlist/details/39931 |
Ericocaulon asteroides is considered to be Vulnerable (1), but the precise threats to its survival have not been identified. It is likely that heavy trampling by cattle on the thin soil may damage these plants by dislodging them (3). However, without some level of grazing or of grassland fires, soil can build up, and this will in turn allow grasses such as Sporobolus spp. to encroach and smother, or compete with, the small E. asteroides (3).
License | http://creativecommons.org/licenses/by-nc-sa/3.0/ |
Rights holder/Author | Copyright Wildscreen 2003-2008 |
Source | http://www.arkive.org/eriocaulon/eriocaulon-asteroides/ |
Eriocaulon L., 1753
License | Public Domain |
Rights holder/Author | No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation. |
Source | http://treatment.plazi.org/id/DDC202CEF0F5B641099063714344F644 |
Conservation Actions
(1) A survey of basalt pavement should be made in the Kilum-Ijim area. When areas are located, these species should be searched for and vouchered if found. A rough number of the area of occupancy and total number of plants should be made. This will allow a more complete mapping of the species and a more comprehensive understanding of their population size.
(2) Considerations should be given to using experimental means to examine the effects of the possible threats mentioned above. Several square metres of one population could be fenced off and protected from fire and grazing. The effects of these could be monitored on an annual basis. Another area could be subjected to cattle or horse trampling to look at the effect of this on the soil that hosts these species. The results of this experimentation could then be used to guide management of the habitat of these species.
License | http://creativecommons.org/licenses/by-nc-sa/3.0/ |
Rights holder/Author | International Union for Conservation of Nature and Natural Resources |
Source | http://www.iucnredlist.org/apps/redlist/details/39931 |
Annual or perennial herbs. Involucral bracts scarious to coriaceous, spreading to reflexed at maturity. Floral bracts often white-hairy towards the tip. Flowers borne on a central receptacle; male and female mixed or female around the edge. Sepals free or ± connate in male flowers, usually free in the female. Petals usually with a black gland near or at the tip, often white-hairy at the tip. Male petals all small or one enlarged and exserted. Male flowers with stamens (in our species) 6 or 4, twice as many as the petals; anthers black or white. Female flowers with petals free. Seeds ellipsoid, smooth or distinctively patterned.
License | http://creativecommons.org/licenses/by-nc/3.0/ |
Rights holder/Author | Mark Hyde, Bart Wursten, Petra Ballings, Flora of Zimbabwe |
Source | http://www.zimbabweflora.co.zw/speciesdata/genus.php?genus_id=312 |
Surveys to discover additional populations in the Kilum-Ijim area, as well as more detailed information on existing known populations are urgently required (3). In addition, experiments to investigate the optimum level of cattle grazing and bush fires may be needed in order to guide habitat management plans (3).
License | http://creativecommons.org/licenses/by-nc-sa/3.0/ |
Rights holder/Author | Copyright Wildscreen 2003-2008 |
Source | http://www.arkive.org/eriocaulon/eriocaulon-asteroides/ |
Eriocaulon L., 1753
License | Public Domain |
Rights holder/Author | No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation. |
Source | http://treatment.plazi.org/id/E02B20B46478D27E61DD3E8C8267A0D7 |