Book contents
- Frontmatter
- Contents
- List of contributors
- Foreword
- Introduction
- Chapter 1 A separate creation: diversity, distinctiveness and conservation of Australian wildlife
- Chapter 2 New Zealand – a land apart
- Chapter 3 The ecological consequences of habitat loss and fragmentation in New Zealand and Australia
- Chapter 4 The impacts of climate change on Australian and New Zealand flora and fauna
- Chapter 5 Unwelcome and unpredictable: the sorry saga of cane toads in Australia
- Chapter 6 Invasive plants and invaded ecosystems in Australia: implications for biodiversity
- Chapter 7 Environmental weeds in New Zealand: impacts and management
- Chapter 8 The insidious threat of invasive invertebrates
- Chapter 9 Pollution by antibiotics and resistance genes: dissemination into Australian wildlife
- Chapter 10 Invasive vertebrates in Australia and New Zealand
- Chapter 11 Freshwaters in New Zealand
- Chapter 12 A garden at the edge of the world; the diversity and conservation status of the New Zealand flora
- Chapter 13 The evolutionary history of the Australian flora and its relevance to biodiversity conservation
- Chapter 14 Protecting the small majority: insect conservation in Australia and New Zealand
- Chapter 15 Terrestrial mammal diversity, conservation and management in Australia
- Chapter 16 Marine mammals, back from the brink? Contemporary conservation issues
- Chapter 17 Australian reptiles and their conservation
- Chapter 18 New Zealand reptiles and their conservation
- Chapter 19 Isolation, invasion and innovation: forces of change in the conservation of New Zealand birds
- Chapter 20 Australian birds: current status and future prospects
- Chapter 21 Austral amphibians – Gondwanan relicts in peril
- Chapter 22 Predators in danger: shark conservation and management in Australia, New Zealand and their neighbours
- Chapter 23 ‘Ragged mountain ranges, droughts and flooding rains’: the evolutionary history and conservation of Australian freshwater fishes
- Chapter 24 Down under Down Under: Austral groundwater life
- Chapter 25 Fire and biodiversity in Australia
- Chapter 26 Terrestrial protected areas of Australia
- Chapter 27 Australian marine protected areas
- Chapter 28 Marine reserves in New Zealand: ecological responses to protection and network design
- Chapter 29 Conclusion: conservation onboard Austral Ark needs all hands on deck
- Index
- Plate section
- References
Chapter 12 - A garden at the edge of the world; the diversity and conservation status of the New Zealand flora
Published online by Cambridge University Press: 05 November 2014
- Frontmatter
- Contents
- List of contributors
- Foreword
- Introduction
- Chapter 1 A separate creation: diversity, distinctiveness and conservation of Australian wildlife
- Chapter 2 New Zealand – a land apart
- Chapter 3 The ecological consequences of habitat loss and fragmentation in New Zealand and Australia
- Chapter 4 The impacts of climate change on Australian and New Zealand flora and fauna
- Chapter 5 Unwelcome and unpredictable: the sorry saga of cane toads in Australia
- Chapter 6 Invasive plants and invaded ecosystems in Australia: implications for biodiversity
- Chapter 7 Environmental weeds in New Zealand: impacts and management
- Chapter 8 The insidious threat of invasive invertebrates
- Chapter 9 Pollution by antibiotics and resistance genes: dissemination into Australian wildlife
- Chapter 10 Invasive vertebrates in Australia and New Zealand
- Chapter 11 Freshwaters in New Zealand
- Chapter 12 A garden at the edge of the world; the diversity and conservation status of the New Zealand flora
- Chapter 13 The evolutionary history of the Australian flora and its relevance to biodiversity conservation
- Chapter 14 Protecting the small majority: insect conservation in Australia and New Zealand
- Chapter 15 Terrestrial mammal diversity, conservation and management in Australia
- Chapter 16 Marine mammals, back from the brink? Contemporary conservation issues
- Chapter 17 Australian reptiles and their conservation
- Chapter 18 New Zealand reptiles and their conservation
- Chapter 19 Isolation, invasion and innovation: forces of change in the conservation of New Zealand birds
- Chapter 20 Australian birds: current status and future prospects
- Chapter 21 Austral amphibians – Gondwanan relicts in peril
- Chapter 22 Predators in danger: shark conservation and management in Australia, New Zealand and their neighbours
- Chapter 23 ‘Ragged mountain ranges, droughts and flooding rains’: the evolutionary history and conservation of Australian freshwater fishes
- Chapter 24 Down under Down Under: Austral groundwater life
- Chapter 25 Fire and biodiversity in Australia
- Chapter 26 Terrestrial protected areas of Australia
- Chapter 27 Australian marine protected areas
- Chapter 28 Marine reserves in New Zealand: ecological responses to protection and network design
- Chapter 29 Conclusion: conservation onboard Austral Ark needs all hands on deck
- Index
- Plate section
- References
Summary
Summary
After drifting away from Gondawana, the land that we presently know as New Zealand went through several geological events such as the Oligocene drowning, the upheaval of the Southern Alps and several glacial–interglacial periods. These events have dramatically shaped New Zealand’s flora and fauna, causing the extinction of some lineages but also promoting speciation and ecological diversification in others. Nowadays, the New Zealand vascular flora includes over 2230 species; most of them endemic (c. 80%). Despite being one of the last places on the world to be reached by people, damage to its native flora and fauna has been significant. Currently, over 38% of the native vascular flora is of conservation concern and six species became extinct. The main threats to New Zealand plants are habitat destruction, herbivory, competition from weeds and the disruption of ecological interactions. Birds are important pollinators and seed dispersers in New Zealand so a decline in their number, caused by the introduction of mammalian predators, has severely damaged plant–bird interactions and the effects of reproduction and dispersal failure are already being noticed. The spread of introduced plant pathogens is also a threat to native plants and their effect on native trees, in particular, is a matter of current concern. Preservation of New Zealand’s flora is a matter of national and international relevance and many initiatives are working towards this goal. Examples include: habitat protection and restoration, conservation by cultivation, and establishment of seed banks. Future research, however, should focus on the autoecology of threatened plants, particularly in those species that depend on mutualistic interactions. This research will help to maximise resources allocated to their conservation and secure their survival and functioning in the long term.
Origin of New Zealand flora
- Type
- Chapter
- Information
- Austral ArkThe State of Wildlife in Australia and New Zealand, pp. 240 - 258Publisher: Cambridge University PressPrint publication year: 2014