Journal Title
Title of Journal: Biol Invasions
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Abbravation: Biological Invasions
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Publisher
Springer Netherlands
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Authors: R Flint Hughes Amanda L Uowolo Tavita P Togia
Publish Date: 2012/01/22
Volume: 14, Issue: 7, Pages: 1393-1413
Abstract
Invasive species are among the greatest threats to global biodiversity Unfortunately meaningful control of invasive species is often difficult Here we present results concerning the effects of invasion by a nonnative N2fixing tree Falcataria moluccana on nativedominated forests of American Samoa and the response of invaded forests to its removal We sampled species richness seedling and stem densities biomass and soil inorganic N status in nativedominated forests and in forests invaded by F moluccana where it was subsequently removed While total biomass of intact native forests and those invaded by F moluccana did not differ significantly greater than 60 of the biomass of invaded forest plots was accounted for by F moluccana and biomass of native species was significantly greater in intact native forests Biomass of native Samoan tree species following removal of F moluccana accumulated rapidly from 128 Mg ha−1 immediately after tree girdling treatment to 185 Mg ha−1 following 8 years of postremoval recovery at which point biomass of F moluccanaremoval plots did not differ significantly from nativedominated forest plots Native trees exhibiting early successional traits accounted for a large portion of aboveground biomass in these forests where frequent largescale disturbance events ie tropical cyclones are a salient feature We suspect that this is the single most important reason why F moluccana removal is a successful management strategy once F moluccana is removed native tree species grow rapidly exploiting the legacy of increased available soil N and available sunlight Seedling densities of F moluccana were high in invaded forest stands but effectively absent following only 3 years of forest recovery a result likely due to the shade cast by reestablishing native trees Although F moluccana is a daunting invasive species it exhibits characteristics that make it vulnerable to successful control it is easily killed by girdling or herbicides and its seeds and seedlings do not tolerate shade These characteristics combined with the important capacity for rapid growth exhibited by many of Samoa’s native trees provide conditions and opportunities for successful longterm control of F moluccana across lowland forests of American Samoa Caution should be exercised however in anticipating comparable management success in the control of F moluccana elsewhere as postremoval responses of invaded forest communities may differ dramatically from what has been documented in American SamoaWe thank A Masani’ai T Iosefa A Wyberski J Puni T Gaoteote I Sagaga J Togi T Lemalu L Peo D Tago L Seagai S Eliu F Suani M Tago M Tuinei T Sagapolutele L Tapusoa E Situa C Osigafeagaiga B Malaga and S Laolagi I Joaquin A Cortes R Loo and J Mascaro for their invaluable assistance in collecting the field data for this study J Baldwin provided advice expertise and assistance with the statistical analysis and V Vaivai created the map of Tutuila Island used here L Loope E Webb and J Mascaro and three anonymous reviewers greatly improved previous drafts of the manuscript with their comments We are grateful to the High Chief Atuatasi Talosaga and the Fagasa village council for their strong support and graciousness in permitting access to their forested lands and we thank the National Park Service Department of the Interior for the funding that allowed us to execute this research
Keywords:
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Other Papers In This Journal:
- Timing and extent of tissue removal affect reproduction characteristics of an invasive species Heracleum mantegazzianum
- Improving and integrating data on invasive species collected by citizen scientists
- Molecular and morphological insights into the origin of the invasive greater white-toothed shrew ( Crocidura russula ) in Ireland
- Feral cat eradication in the presence of endemic San Nicolas Island foxes
- First larval record of Pterois volitans (Pisces: Scorpaenidae) collected from the ichthyoplankton in the Atlantic
- Evolution of enhanced reproduction in the hybrid-derived invasive, California wild radish ( Raphanus sativus )
- Tracking the expansion of the American mink ( Neovison vison) range in NW Portugal
- Interactions between invasive and native crustaceans: differential functional responses of intraguild predators towards juvenile hetero-specifics
- The invasive Australian redback spider, Latrodectus hasseltii Thorell 1870 (Araneae: Theridiidae): current and potential distributions, and likely impacts
- Aggressive interactions between two invasive species: the round goby ( Neogobius melanostomus ) and the spinycheek crayfish ( Orconectes limosus )
- Soil type, microsite, and herbivory influence growth and survival of Schinus molle (Peruvian pepper tree) invading semi-arid African savanna
- Geographic range and structure of cryptic genetic diversity among Pacific North American populations of the non-native amphipod Grandidierella japonica
- Non-linear effects of invasive lionfish density on native coral-reef fish communities
- A predatory land snail invades central-western Argentina
- Use of niche models in invasive species risk assessments
- Invaded range of the blackberry pathogen Phragmidium violaceum in the Pacific Northwest of the USA and the search for its provenance
- Invasion of the African sharp-tooth catfish Clarias gariepinus (Burchell, 1822) in South China
- Invader population speeds up life history during colonization
- The apparent demise of the Asian date mussel Musculista senhousia in Western Australia: or using acts of god as an eradication tool
- Alien plant invasions in tropical and sub-tropical savannas: patterns, processes and prospects
- Last Chance to Know? Using Literature to Explore the Biogeography and Invasion Biology of the Death Cap Mushroom Amanita phalloides (Vaill. ex Fr. :Fr.) Link
- Tidal and seasonal effects on survival rates of the endangered California clapper rail: does invasive Spartina facilitate greater survival in a dynamic environment?
- Phenotypic plasticity of reproductive traits in response to food availability in invasive and native species of nematode
- Non-native grass invasion alters native plant composition in experimental communities
- Non-native grass invasion alters native plant composition in experimental communities
- Trading in snails: plant nurseries as transport hubs for non-native species
- Ant community structure on a small Pacific island: only one native species living with the invaders
- Priority invasive alien plants in the Tuscan Archipelago (Italy): comparing the EPPO prioritization scheme with the Australian WRA
- Disturbance-mediated competition: the interacting roles of inundation regime and mechanical and herbicidal control in determining native and invasive plant abundance
- Native Cuscuta campestris restrains exotic Mikania micrantha and enhances soil resources beneficial to natives in the invaded communities
- Systematic culling controls a climate driven, habitat modifying invader
- Risk assessment of the crayfish pet trade based on data from the Czech Republic
- Distinct invasion sources of common ragweed (Ambrosia artemisiifolia) in Eastern and Western Europe
- Evaluating hybridization as a potential facilitator of successful cogongrass ( Imperata cylindrica ) invasion in Florida, USA
- The presence of the invasive plant Solanum elaeagnifolium deters honeybees and increases pollen limitation in the native co-flowering species Glaucium flavum
- Straddling the divide: invasive aquatic species in Illinois and movement between the Great Lakes and Mississippi basins
- Evidence for ongoing introduction of non-native earthworms in the Washington, DC metropolitan area
- Flooding compromises compensatory capacity of an invasive plant: implications for biological control
- Saving camels from straws: how propagule pressure-based prevention policies can reduce the risk of biological invasion
- Herbert H. T. Prins and Iain J. Gordon (eds.): Invasion biology and ecological theory. Insights from a continent in transformation
- Effects of warming and nitrogen on above- and below-ground herbivory of an exotic invasive plant and its native congener
- Effects of invasive seaweeds on feeding preference and performance of a keystone Mediterranean herbivore
- The Indian brown mongoose, yet another invader in Fiji
- Invasive earthworms as seed predators of temperate forest plants
- Challenges and trade-offs in the management of invasive alien trees
- Invasion of an indigenous Perna perna mussel bed on the south coast of South Africa by an alien mussel Mytilus galloprovincialis and its effect on the associated fauna
- Light interception principally drives the understory response to boxelder invasion in riparian forests
- Eradications as reverse invasions: lessons from Pacific rat ( Rattus exulans ) removals on New Zealand islands
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