Global ETD Search
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Showing 1 to 8 of 8 for “"Erica species"”.
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Floral evolution of long-tubed Erica species
The genus Erica has undergone an extreme radiation in the Cape and exhibits a diversity of pollination syndromes and floral traits. This makes Erica well-suited to study the evolution of floral traits and how they impact speciation. The first chapter explored the role of ultraviolet colouration by …
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Pollination biology of four co-occurring Erica species from the Cape Peninsula, South Africa
… for the largest, florally diverse Cape genus Erica. Speciation studies that focus on pollination biology often use floral syndrome characters to predict a species' functional pollinator group/s. The predictive power of these techniques has come under scrutiny, and hence in-situ observations …
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Can and do Ericas self pollinate?
… by large floral diversity. The genus Erica is one of these lineages, making up -7% of the CFR. Surprisingly, even though pollinators have been suggested to be a driving force of floral morphology, the role of pollinators in the floral diversification and speciation of this genus is not …
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The birds, the bees and Erica: vulnerability of plant-pollinator communities in fragmented fynbos landscapes
… parts of the former distribution range of many Erica species. Recent evidence suggests that in the Fynbos biome, small remnants of natural and disturbed vegetation are likely to display depauperate plant communities. In the present study, it was found that Erica species richness declined …
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Intraspecific variation in Erica coccinea
The genus Erica is the most specious in the Cape Floristic Region, with a large range of habitats, pollination syndromes and fire survival strategies. Erica coccinea, like many other Cape Erica species, has high intraspecific variability between populations. In addition to variability in floral …
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Germination success and drought response in Erica coccinea
… that the distribution of resprouter and seeder Erica in the Cape Floristic Region (CFR) of South Africa is determined more by water availability. Erica seeders are predicted to withstand the mild droughts of the southwest CFR better than Erica resprouters, which would account for the abundance …
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The effect of supplementary nectar feeders on bird-plant mutualisms in the Cape Fynbos, South Africa
… plantpollinator mutualism. Given that many plant species in the fynbos biome are bird pollinated, this study was conducted in residential gardens and natural vegetation along the urban edge of the Cape Peninsula, South Africa. I carried out a feeding experiment with a matched paired design to …
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Variation in breeding systems and consequences for reproductive traits in Erica
Erica makes up 7% of all species in the Cape flora. It is the most species-rich genus in the Cape Floristic Region (CFR), which has an area 0f 90 000km². Erica species have great inter- and intra-specific variation in floral form as well as in post-fire regeneration strategies. Previous studies of …