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Preface and acknowledgements | |
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Islands as Natural Laboratories | |
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The natural laboratory paradigm | |
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Island environments | |
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Types of islands | |
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Modes of origin | |
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Plate boundary islands | |
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Islands in intraplate locations | |
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Environmental changes over long timescales | |
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Changes in relative sea level-reefs, atolls, and guyots | |
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Eustatic changes in sea level | |
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Climate change on islands | |
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The developmental history of the Canaries, Hawaii, and Jamaica | |
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The physical environment of islands | |
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Topographic characteristics | |
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Climatic characteristics | |
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Water resources | |
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Tracks in the ocean | |
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Natural disturbance on islands | |
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Magnitude and frequency | |
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Disturbance from volcanism and mega-landslides | |
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Summary | |
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The biogeography of island life: biodiversity hotspots in context | |
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Introduction: the global significance of island biodiversity | |
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Species poverty | |
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Disharmony, filters, and regional biogeography | |
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Filtering effects, dispersal limits, and disharmony | |
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Biogeographical regionalism and the vicariance/dispersalism debate | |
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Macaronesia-the biogeographical affinities of the Happy Islands | |
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Endemism | |
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Neo- and palaeoendemism | |
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Endemic plants | |
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Endemic animals | |
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Cryptic and extinct island endemics: a cautionary note | |
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Summary | |
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Island Ecology | |
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Species numbers games: the macroecology of island biotas | |
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The development of the equilibrium theory of island biogeography | |
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Island species-area relationships (ISARs) | |
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Species abundance distributions | |
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The distance effect | |
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Turnover, the core model (EMIB), and its immediate derivatives | |
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Competing explanations for systematic variation in island species-area relationships | |
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Island species numbers and ISARs: what have we learnt? | |
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Area and habitat diversity | |
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Area is not always the first variable in the model | |
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Distance and species numbers | |
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Species-area relationships in remote archipelagos | |
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Scale effects and the shape of species-area relationships | |
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Species-energy theory-a step towards a more complete island species richness model? | |
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Turnover | |
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Pseudoturnover and cryptoturnover | |
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When is an island in equilibrium? | |
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The rescue effect and the effect of island area on immigration rate | |
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The path to equilibrium | |
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What causes extinctions? | |
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Summary | |
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Community assembly and dynamics | |
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Island assembly theory | |
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Assembly rules | |
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Incidence functions and tramps | |
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The dynamics of island assembly | |
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Chequerboard distributions | |
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Combination and compatibility-assembly rules for cuckoo-doves | |
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Criticisms, 'null' models, and responses | |
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Exploring incidence functions | |
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Linking island assembly patterns to habitat factors | |
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Anthropogenic experiments in island assembly: evidence of competitive effects? | |
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Nestedness | |
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Successional island ecology: first elements | |
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Krakatau-succession, dispersal structure, and hierarchies | |
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Background | |
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Community succession | |
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A dispersal-structured model of island recolonization | |
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Colonization and turnover-the dynamics of species lists | |
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The degree of organization in the Krakatau assembly process | |
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Concluding observations | |
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Summary | |
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Scale and island ecological theory: towards a new synthesis | |
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Limitations of the dynamic equilibrium model of island biogeography: a reappraisal | |
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Scale and the dynamics of island biotas | |
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Residency and hierarchical interdependency: further illustrations from Krakatau | |
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Forms of equilibria and non-equilibria | |
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Temporal variation in island carrying capacities | |
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The prevalence and implications of intense disturbance events | |
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Variation in species number in the short and medium term | |
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Long term non-equilibrium systems | |
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Implications for endemics? | |
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Future directions | |
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Summary | |
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Island Evolution | |
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Arrival and change | |
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Founder effects, genetic drift, and bottlenecks | |
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Implications of repeated founding events | |
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After the founding event: ecological responses to empty niche space | |
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Ecological release | |
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Density compensation | |
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Character displacement | |
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Sex on islands | |
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Dioecy and outcrossing | |
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Loss of flower attractiveness | |
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Anemophily | |
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Parthenogenesis | |
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Hybridization | |
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Peculiarities of pollination and dispersal networks on islands | |
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The emergence of endemic super-generalists | |
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Unusual pollinators | |
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Unusual dispersal agents | |
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Niche shifts and syndromes | |
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The loss of dispersal powers | |
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The development of woodiness in herbaceous plant lineages | |
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Size shifts in island species and the island rule | |
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Changes in fecundity and behaviour | |
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The island syndrome in rodents | |
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Summary | |
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Speciation and the island condition | |
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The species concept and its place in phylogeny | |
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The geographical context of speciation events | |
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Distributional context | |
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Locational and historical context-island or mainland change? | |
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Mechanisms of speciation | |
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Allopatric or geographical speciation | |
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Competitive speciation | |
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Polyploidy | |
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Lineage structure | |
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Summary | |
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Emergent models of island evolution | |
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Anagenesis: speciation with little or no radiation | |
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The taxon cycle | |
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Melanesian ants | |
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Caribbean birds | |
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Caribbean anolcs | |
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Evaluation | |
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Adaptive radiation | |
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Darwin's finches and the Hawaiian honeycreeper-finches | |
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Hawaiian crickets and drosophilids | |
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Adaptive radiation in plants | |
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From valley isolates to island-hopping radiations 230 Non-adaptive radiation | |
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Speciation within an archipelago | |
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Island-hopping allopatric radiations: do clades respond to islands or to habitats? | |
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Island-hopping on the grand scale | |
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Observations on the forcing factors of island evolution | |
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Variation in insidar endemism between taxa | |
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Biogeographical hierarchies and island evolutionary models | |
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Summary | |
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Islands and Conservation | |
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Island theory and conservation | |
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Islands and conservation | |
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Habitats as islands | |
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Minimum viable popidations and minimum viable areas | |
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How many individuals are needed? | |
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How big an area? | |
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Applications of incidence functions | |
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Metapopulation dynamics | |
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The core-sink model variant | |
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Deterministic extinction and colonization within metapopulations | |
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Value of the metapopulation concept | |
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Reserve configuration-the 'Single Large or Several Small' (SLOSS) debate | |
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Dealing with the leftovers | |
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Trophic level, scale, and system extent | |
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Physical changes and the hyperdynamism of fragment systems | |
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Relaxation and turnover-the evidence | |
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Succession in fragmented landscapes | |
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The implications of nestedness | |
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Edge effects | |
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Landscape effects, isolation, and corridors | |
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The benefits of wildlife corridors | |
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The benefits of isolation | |
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Corridors or isolation? | |
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Reserve systems in the landscape | |
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Species that don't stay put | |
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Does conservation biology need island theory? | |
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A non-equilibrium world? | |
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Ecological hierarchies and fragmented landscapes | |
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Climate change and reserve systems | |
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Concluding remarks: from island biogeography to countryside biogeography? | |
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Summary | |
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Anthropogenic losses and threats to island ecosystems | |
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Current extinctions in context | |
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Stochastic versus deterministic extinctions | |
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The scale of island losses globally | |
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The agencies of destruction | |
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Predation by humans | |
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Introduced species | |
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Disease | |
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Habitat degradation and loss | |
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Trends in the causes of decline | |
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A record of passage-patterns of loss across island taxa | |
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Pacific Ocean birds and the Easter Island enigma | |
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Indian Ocean birds | |
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Reptiles | |
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Caribbean land mammals | |
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Island snails | |
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Plants in peril | |
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How fragile and invasible are island ecosystems? | |
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Summary | |
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Island remedies: the conservation of island ecosystems | |
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Contemporary problems on islands | |
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Maldives: in peril because of climatic change | |
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Okino-Tori-Shima: the strategic economic importance of a rocky outcrop | |
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Nauru: the destruction of an island | |
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The Canaries: unsustainable development in a natural paradise | |
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Contemporary problems in the Galapagos: a threatened evolutionary showcase | |
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Some conservation responses | |
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Biological control-a dangerous weapon? | |
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Translocation and release programmes | |
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Protected area and species protection systems: the Canarian example | |
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Sustainable development on islands: constraints and remedies | |
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Summary | |
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Glossary | |
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References | |
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Index | |