Global ETD Search
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Showing 1 to 11 of 11 for “"geophyte"”.
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The role of geophytes in stone age hunter-gatherer subsistence and human evolution in the greater cape floristic region
… Plants that possess underground storage organs (geophytes) have been put forward as the likely source of starch. Geophytes comprise a large portion of the plant diversity in the Greater Cape Floristic Region (GCFR), where significant archaeological evidence of the evolution of human modernity has …
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Rodent pollination in Androcymbium latifolium (Colchicaceae)
… odour. Androcymbium latifolium (Colchicaceae), a geophyte that occurs in the semiarid Succulent karoo region of South Africa, exhibits several of the therophilous traits. Experiments were conducted investigating the hypothesis that this species is rodent pollinated. Several lines of evidence were …
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Population genetic structuring in the common mole-rat, Cryptomys hottentotus hottentotus
… of burrowing and the low probability of locating geophyte clumps in increasingly arid environments.
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Why is Chasmanthe spp. absent from the archaeological record of the south-western Cape?
… of the Iridaceae family. The most common geophyte corms identified are those of Watsonia, Babiana, Hexaglottis, Moreae and Gladiolus. Interestingly, Chasmanthe spp. commonly found growing on the west coast, have not been found in archaeological deposits of this area. The carbohydrate-rich …
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A study of the short-term responses of fynbos to fire in the Kogelberg State Forest, South Africa
… is changed for at least one season after a fire. Geophytes are stimulated to flower in abundance after a summer burn but much less so by a spring burn. The spring burn prevented at least one geophyte species from flowering the fol lowing spring which is the flowering time for the species. Records …
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What are southern Cape renosterveld geophytes storing in their underground organs?
Geophytes have been extremely successful in the Cape Floristic Region of South Africa, because they possess underground storage organs adapted to unpredictable climates. This study analysed the storage reserves of geophyte species from the southern Cape renosterveld, to determine if reserve …
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Monkey beetles on the beat: urban monkey beetles reveal opportunities for pollinator habitat management in a South African city
… the connectivity of habitats containing endemic geophytes and spring annuals were considered. These flower populations provide breeding and foraging resources to Hopliini and other pollinators. They are an especially important resource to the group who are unable to move through or exploit the …
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Sociality in the common mole-rat, Cryptomys hottentotus hottentotus : the effects of aridity
… characteristics was also evident. Although geophytes were clumped at both study localities, the density of geophytes was lower and the distance between geophytes or geophyte clumps concomitantly greater at the arid relative to the mesic site. Differences in resource dispersion in turn …
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Integrated in situ and ex situ approach for Gentiana lutea L. ssp. lutea conservation
… subsp lutea (hereafter G. lutea) is a long-lived geophyte, which has high medicinal value for the intensely bitter properties residing mainly in the root, being the main vegetable bitter employed in homeopathy and for the liqueurs production. G. lutea is presented in the Annex V of the Directive …
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Seed Dispersal of Wild Peony (Paeonia brownii): as seed in the pouch is worth two in the pod
This research investigates the dispersal characteristics for wild peony (Paeonia brownii), an herbaceous perennial that produces large seeds and is found in Jeffrey pine forests at elevations between 1950-2000 m and in sagebrush scrub at elevations between 1550-1580 m in the mountain ranges of …
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Conserving living landscapes: investigating the impacts of livestock grazing and assessing rangeland restoration potential in Overberg Renosterveld, South Africa
… no grazing had significantly higher richness of geophyte species (mean = 14.7) than sites grazed by cattle (mean = 7.0) and sheep (mean = 7.1) during the study. The results obtained were in line with the hypothesis that livestock grazing by sheep resulted in a reduction in species richness and …