1/9/2024 0 Comments Castilla yellow paintbrush![]() On doit considérer de plus près les défis et opportunités que présente la transplantation. Le groupe de sauvetage des écosystèmes de Garry Oak fournit des conseils pour les transplantations proposées, mais encourage fortement ceux qui s'occupent de restauration de mettre l'accent sur les populations de plantes déjà présentes sur le site. Une stratégie déterminante pour mitiger cette perte de diversité consiste à transplanter les plantes rares sur les sites EGOs en restauration. Depuis l'établissement européen ca 1840, les EGOs ont subi une forte dégradation par des perturbations humaines, une fragmentation des habitats, des espèces envahissantes, le surpâturage, et la suppression des feux. Étendus sur seulement 2000 ha, les écosystèmes de Garry oak (EGOs) de l'Ouest canadien contiennent 10% de la loi sur les espèces à risque liste des espèces à risque au Canada, incluant 30 plantes listées par le comité sur le statut des espèces indigènes en danger au Canada. Translocations like these together with further research on the genetics and ecology of rare plant species are critical to species recovery efforts within GOE and other similarly compromised ecosystems. Current translocation efforts are being spearheaded by Parks Canada for golden paintbrush ( Castilleja levisecta Greenm.), seaside birds-foot lotus ( Lotus formossimus Greene), and white-top aster ( Aster curtus Cronq.). If the approach taken is too precautionary, some rare species in this highly threatened ecosystem may be jeopardized. ![]() There is a need for a closer look at challenges and opportunities afforded by translocation. The Garry Oak Ecosystem Recovery Team provides advice on proposed translocations but strongly encourages restoration practitioners to focus on plant populations already present on a site. A key strategy to mitigate this loss of biodiversity is to translocate rare plants to GOE restoration sites. 1840, GOE sites have been largely degraded by human disturbance, habitat fragmentation, invasive species, overgrazing, and fire suppression. AS THEY ARE SEMI-PARASITES, IT MAY HELP TO GROW SOME GRASS SEEDS IN THE SEED TRAY.Covering just 2000 ha, Garry oak ecosystems (GOEs) in western Canada contain about 10% of the Species at Risk Act listed species at risk in Canada, including 30 plants listed by Committee on the Status of Endangered Wildlife in Canada as endangered. THESE SEEDS MAY STILL TAKE SEVERAL MONTHS TO APPEAR SO PLEASE KEEP THE POT OR TRAY SAFELY. ![]() THEY MAY ALSO BE SOWN AT ANY TIME AND IF THE SEEDS DO NOT COME UP WITHIN 4 TO 12 WEEKS THE DAMP SEED TRAY CAN BE GIVEN COLD TREATMENT IN A FRIDGE FOR ABOUT FOUR WEEKS. WE ADVISE COVERING SEEDS VERY THINLY INDEED WITH SAND OR FINE GRIT, A GOOD GUIDE IS ABOUT THE DEPTH OF THE SEED SIZE. SOWING ADVICE: SEEDS ARE BEST SOWN IN WINTER OR EARLY SPRING AS THEY BENEFIT FROM A COLD SPELL IN THE WET COMPOST AFTER SOWING TO BREAK THEIR DORMANCY. Blooms from June to August and prefers full-sun to part-shade. Excellent for higher elevations and very drought tolerant. Indian paintbrush requires a host plant to survive. ![]() Prefers medium texture soils and full-sun. Distributed through much of the intermountain region growing on moist, sub-alpine meadows and exposed flats. Has pale yellow bracts and blooms in summer. Painted Cups, Indian Paintbrush, Yellow Paintbrush
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