Table 8. The influence of other factors (population scale or landscape scale) on population sustainability. Salinity has an effect in relation to the ability of species to use groundwater, and use of surface water, and tolerance is given in previous table captions. Species Water Sources Seed storage/ Grazing, competition Salinity Groundwater Population constraints/viability viability and adjacent land use extraction Unknown Eucalyptus Groundwater Serotiny in riparian modifies ant activity Not generally insects, birds and bats; seed supply camaldulensis Lateral bank recharge systems (2 yrs). SB and removal of seed; salinity tolerant density dependent?/hydrology subsp. camaldulensis Rainfall present in SW Vic. and seedlings directly dependent; little estab. under Flooding SE SA. Dependent on grazed (more during mature trees Ponded surface tree condition: release drought) Density of stands water following flood; ant - compete with and 100s of years for ecosystem weeds function Eucalyptus Unknown Unknown Unknown Unknown Unknown Unknown camaldulensis subsp. acuta Eucalyptus Lack from all sources Serotiny in riparian seedlings are grazed Salinity tolerant Big effect: increases insects, birds and bats; largiflorens a constraint systems (17mths–2 reliance on flood yrs); release uk; no SB; and rain ant -granivory Eucalyptus coolabah Unknown Potentially (i.e. Seedlings are directly Not generally Likely to have big Clearing of regenerating stands coolabah dormancy can be grazed; competition salinity tolerant effect, usually floods induced), but not from grass not so not required detected important because of (amelioration); regen. is groundwater directly cleared Unknown Unknown Unknown Unknown Unknown Unknown Eucalyptus coolabah subsp. excerata Acacia stenophylla Unknown Not buried, but competition from Salinity tolerant Unknown seed coat dormancy dormant occurs Duma florulenta Unknown No seed bank; ant Unknown Salinity tolerant Unknown Dioecious, heavily reliant on veg. reproduction
Table 8. The influence of other factors (population scale or landscape scale) on population sustainability. Salinity has an effect in relation to the ability of species to use groundwater, and use of surface water, and tolerance is given in previous table captions. Species Water Sources Seed storage/ viability Grazing, competition and adjacent land use Salinity Groundwater extraction Population constraints/viability Eucalyptus camaldulensis subsp. camaldulensis Groundwater Lateral bank recharge Rainfall Flooding Ponded surface water Serotiny in riparian systems (2 yrs). SB present in SW Vic. and SE SA. Dependent on tree condition: release following flood; ant modifies ant activity and removal of seed; seedlings directly grazed (more during drought) compete with and weeds Not generally salinity tolerant Unknown insects, birds and bats; seed supply density dependent?/hydrology dependent; little estab. under mature trees Density of stands 100s of years for ecosystem function Eucalyptus camaldulensis subsp. acuta Unknown Unknown Unknown Unknown Unknown Unknown Eucalyptus largiflorens Lack from all sources a constraint Serotiny in riparian systems (17mths–2 yrs); release uk; no SB; ant -granivory seedlings are grazed Salinity tolerant Big effect: increases reliance on flood and rain insects, birds and bats; Eucalyptus coolabah coolabah Unknown Potentially (i.e. dormancy can be induced), but not detected Seedlings are directly grazed; competition from grass not so important (amelioration); regen. is directly cleared Not generally salinity tolerant Likely to have big effect, usually floods not required because of groundwater Clearing of regenerating stands Eucalyptus coolabah subsp. excerata Unknown Unknown Unknown Unknown Unknown Unknown Acacia stenophylla Unknown Not buried, but dormant competition from occurs Salinity tolerant Unknown seed coat dormancy Duma florulenta Unknown No seed bank; ant Unknown Salinity tolerant Unknown Dioecious, heavily reliant on veg. reproduction -
Review%20of%20Water%20Requirements%20for%20Floodplain%20Vegetation_final.docx