Book contents
- Frontmatter
- Contents
- Contributors
- Preface
- 1 Introduction: islands and plants
- 2 The reproductive biology of island plants
- 3 Spatial methodologies in historical biogeography of islands
- 4 Origin and evolution of Hawaiian endemics: new patterns revealed by molecular phylogenetic studies
- 5 Origins and evolution of Galapagos endemic vascular plants
- 6 The plants of the Caribbean islands: a review of the biogeography, diversity and conservation of a storm-battered biodiversity hotspot
- 7 The biogeography of Madagascar palms
- 8 Evolution and biogeography of the flora of the Socotra archipelago (Yemen)
- 9 Biogeography and conservation of the flora of New Caledonia
- 10 Phytogeography and relationships of the Pitcairn Islands flora
- 11 Chromosomes and evolution in New Zealand endemic angiosperms and gymnosperms
- 12 Jesters, red queens, boomerangs and surfers: a molecular outlook on the diversity of the Canarian endemic flora
- 13 Endemism and evolution in Macaronesian and Mediterranean Limonium taxa
- 14 Dispersal, diversity and evolution of the Macaronesian cryptogamic floras
- 15 Invasive alien species and islands
- 16 Ecology, demography and conservation in the Galapagos Islands flora
- 17 New directions and challenges for the conservation of the flora of Madagascar
- 18 Climate change and island floras
- 19 Conservation status of endemic plants on Isla del Coco, Costa Rica: applying IUCN Red List criteria on a small island
- 20 Botanic gardens and the conservation of island floras
- 21 The hazardous future of island floras
- Index
- References
16 - Ecology, demography and conservation in the Galapagos Islands flora
Published online by Cambridge University Press: 07 October 2011
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Book contents
- Frontmatter
- Contents
- Contributors
- Preface
- 1 Introduction: islands and plants
- 2 The reproductive biology of island plants
- 3 Spatial methodologies in historical biogeography of islands
- 4 Origin and evolution of Hawaiian endemics: new patterns revealed by molecular phylogenetic studies
- 5 Origins and evolution of Galapagos endemic vascular plants
- 6 The plants of the Caribbean islands: a review of the biogeography, diversity and conservation of a storm-battered biodiversity hotspot
- 7 The biogeography of Madagascar palms
- 8 Evolution and biogeography of the flora of the Socotra archipelago (Yemen)
- 9 Biogeography and conservation of the flora of New Caledonia
- 10 Phytogeography and relationships of the Pitcairn Islands flora
- 11 Chromosomes and evolution in New Zealand endemic angiosperms and gymnosperms
- 12 Jesters, red queens, boomerangs and surfers: a molecular outlook on the diversity of the Canarian endemic flora
- 13 Endemism and evolution in Macaronesian and Mediterranean Limonium taxa
- 14 Dispersal, diversity and evolution of the Macaronesian cryptogamic floras
- 15 Invasive alien species and islands
- 16 Ecology, demography and conservation in the Galapagos Islands flora
- 17 New directions and challenges for the conservation of the flora of Madagascar
- 18 Climate change and island floras
- 19 Conservation status of endemic plants on Isla del Coco, Costa Rica: applying IUCN Red List criteria on a small island
- 20 Botanic gardens and the conservation of island floras
- 21 The hazardous future of island floras
- Index
- References
Summary
The islands
The Galapagos are true oceanic islands, which except for the two northernmost, Darwin and Wolf, rise from a relatively shallow submarine platform. The oldest islands are composed of uplifted lava flows and are about 4.5 million years old (Ma): they are found in the eastern part of the archipelago (Española, Santa Fe, Plazas, Baltra, Seymour and a narrow strip along the northeast coast of Santa Cruz). All the other islands are formed by great volcanoes and are much younger; no rocks older than 0.7 Ma have been found on Fernandina, Isabela, Santiago, Pinta, Genovesa, Marchena and Darwin, and Fernandina could even be as young as 60 000 bp, according to Geist (1996). The islands consist typically of one or several shield volcanoes culminating in craters or large calderas. Eruptions are frequent, particularly in the westernmost islands, Isabela and Fernandina, and the landscape displays a variety of craters, huge, barren fields of lava, ash or scoria, and vegetated areas.
- Type
- Chapter
- Information
- The Biology of Island Floras , pp. 385 - 424Publisher: Cambridge University PressPrint publication year: 2011
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