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| 1 | Recruitment and functionality traits as bioindicators of ecological restoration success in the Lurg Hills district,Victoria,Australia显示文摘Introduction:The Regent Honeyeater Project commenced ecological restoration in the Lurg district in 1994,with an aim to restore habitats for the critically endangered Regent Honeyeater Anthochaera phrygia and a range of other threatened and declining species.Within this context,our study aimed to explore whether plant reproduction can be an effective measure of ecological restoration success.Methods:Evaluation involved comparing attributes at unrestored,restored and remnant sites to establish whether sites displayed evidence of a clear restoration trajectory.Five age classes(unrestored,4–6 years old,8–10 years old,12–14 years old and remnant areas)and two landforms(upper hills and lower hills)were considered.The diversity of woody plant species—which have easily recognisable reproductive material and which all recruit seedlings—provides easily measured parameters that have the potential to allow the determination of early establishment success and long-term ecological development of restored ecosystems.Results:Restoration plantings developed in a hybrid state towards a benchmark in the lower hills;seedling species composition differed significantly among age classes,increasing in similarity with time since restoration,with some divergence from the target pathway.Composition of functional groups with reproductive outputs was also significantly different among age classes;however,a restoration trajectory was only evident in the upper hills where sites converged towards the target goal.Conclusions:Divergence or deviation from the restoration trajectory was not deemed to be a restoration failure,as the variety of functional groups with fruits and diversity of seedlings recruiting indicated a potential increase in resilience in the future due to greater variability across the landscape.Plant recruitment was effective in detecting development trends towards a restoration target in this study and therefore may be a useful measure that contributes to determining ecological restoration success. | Kristin Monie Singarayer Florentine Grant Palmer | 2013 | Ecological Processes2013，2，1： | 3 |
| 2 | Plant recruitment and survival as indicators of ecological restoration success in abandoned pasture land in Nurcoung,Victoria,Australia显示文摘Introduction:One of the major impediments to developing better restoration strategies is the inadequate documentation of past restoration efforts.In 2008,Greening Australia commenced ecological restoration on the Nurcoung property in Victoria to enhance local biodiversity,and in this paper we report on the habitat restoration outcomes in the three Ecological Vegetation Classes(EVC)found on this property.Methods:Permanent sample plots(12×20 m)were randomly established in July 2010 in each of the restoration areas,with 9,10,and 24 plots demarcated in Shallow Sands Woodland(SSW),Heathy Woodland(HW),and Sandstone Ridge Woodlands(SRW),respectively.Individual plots were prepared to include three seeded rows.Plots were assessed for seedling recruitment and survival in May 2010,April 2011,and May 2012.Records of individual seedling development included their height and cover,and their location within the plot.Results:Our study shows that interaction between the age of the planted and direct-seeded vegetation and the nature of the EVC significantly affects the composition of plants and the soil surface in that species and,further,that soil cover parameters develop in different ways in the different experimental plots.A SIMPER analysis of soil cover parameters shows that most of the variation over the years of restoration is attributable to differences in the amount of bare soil recorded,rather than the amount of leaf-litter cover,and that these changes in soil cover parameters differ between EVCs over the sampling periods.The direct-seeding study shows that whilst most of the broadcast species were recruited,some species used in the Shallow Sands Woodland,the Heathy Woodland,and the Sandstone Ridge Shrubland did not show evidence of recruitment during the three sampling periods.Although the density of most seedlings increased in subsequent sampling years,the planted species Callitris gracilis,Callitris rhomboidea,Hakea muelleriana,and Melaleuca lanceolata did not survive.Conclusions:As a result of the land use change,new assemblages of abiotic and biotic system components appear to lead to the development of stable alternative ecological states.These‘novel’ecosystems now play an important part of the natural resource base,requiring careful characterization to better understand current development trajectories and future states,and to inform management strategies to meet desired restoration outcomes.Although the study sites have been abandoned for a long time,broadcast seeds and plant seedlings show they can overcome internal resilience. | Singarayer K Florentine Jessica Gardner Friedrich P Graz Sean Moloney | 2013 | Ecological Processes2013，2，1： | 2 |
| 3 | Towards radiocarbon calibration beyond 28 ka using speleothems from the Bahamas显示文摘 | Hoffmann D L Beck J W Richards D A Smart P L Singarayer J S Ketchmark T Hawkesworth C J | | 0，，： | 1 |
| 4 | Endothelin Receptor Antagonists:New Hope for Renal Protection显示文摘 | TOBE S KOHAN DE SINGARAYER R | 2015 | Curr Hyper- tens Hep2015，17，7： | 1 |
| 5 | Competition between Eucalyptus victrix seedlings and grass species显示文摘 | Singarayer K F John E D F | 2003 | Ecological Research2003，18，1： | 1 |
| 6 | Restoration on abandoned tropical pasturelands-do we know enough?显示文摘 | SINGARAYER K FLORETINE M E | 2004 | Nature Conservation2004，12，： | 1 |
| 7 | Characterizing selected soil attributes of different land-use management to assess reforestation benefits of deforested riparian buffers显示文摘Introduction:The information available on the sensitivity of soil biotic and abiotic attributes,which can be used to track the impact of reforestation in riparian buffers,is often insufficient to refine management practices and convince stakeholders of the benefits of reforestation.Methods:In this study,conducted in Victoria,Australia,the changes in soil biotic and abiotic attributes,organic carbon(OC),mineral nitrogen(MN),total dissolved solutes(TDS)and pH were characterised to assess the impact of land-use change from bare riparian(BR)to reforested riparian(RR).Additionally,the benefits of revegetating a deforested creek bank with regard to salinity abatement and C-sequestration potentials were assessed.Results:The TDS depletion in the RR strips varied spatiotemporally from 65 to 169 mg/L,the net OC deposition from 16 to 19 g C/kg soil and MN deposition from 1.2 to 2.1 g N/kg soil,respectively.Additionally,the net changes in pH from alkaline to near neutral condition varied by 0.4 to 1.0 pH units.Approximately 30%to 60%of the net OC depletion after deforestation was redeposited under RR over 3 to 6 years.The TDS depletion after land-use changed from BR to RR ranged from 15 to 32%over 3 to 6 years.Conclusion:The soil attributes OC,MN and TDS characteristics under different land-use practices varied spatiotemporally.This information may be useful to convince stakeholders to undertake reforestation of creek banks for salinity abatement,and that change in land-use has the potential to increase C sequestration at a farm scale. | Velu Rasiah Singarayer K.Florentine | 2018 | Ecological Processes2018，7，1： | 0 |
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